Instruction/ maintenance manual of the product QJ71LP21G Mitsubishi Electronics
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Q Corresponding MELSECNET/H Network System Reference Manual (Remote I/O network) -QJ71LP21 -QJ71LP21- 25 -QJ71LP21S-25 -QJ71LP21G -QJ71LP21GE -QJ71BR11 -QJ72LP25- 25 -QJ72LP25G -QJ72LP25GE -QJ72BR15.
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A - 1 A - 1 SAFETY PRECAUTIONS (Read these precautions before using this product.) Before usin g this pro duct, please rea d this manual a nd the relev ant manua ls caref ully and pay full attention to sa fety t o handle the prod uct correct ly.
A - 2 A - 2 [Design Precauti ons] ! WARNING W hen connecting a perip heral with the progra mmable controller CP U or connecting a personal computer with an int elligent function module to modify d.
A - 3 A - 3 [Installation Prec autions] ! CAUT IO N Do not direct ly touch any conductive parts and electronic components of the module. Doing so can cause malfunct ion or failure of the module. [Wiring Precautions] ! WARNING Shut off the ext ernal power supply (all phases) used in the syst em before installation and wiring.
A - 4 A - 4 [Setup and Mai ntenance Pr ecautions] ! WARNING Do not touch any terminal while pow er is on. Doing so w ill cause electric shoc k or malfuncti on. Shut off the ext ernal power supply (all phases) used in the system before cleaning t he module or retightening the terminal screw s or module mounting screws.
A - 5 A - 5 CONDITIONS OF USE FOR THE PRODUCT (1) Mitsubishi programmable cont roller ("the PRODUCT" ) shall be used in conditions; i) where any problem, fault or failure occurring i.
A - 6 A - 6 REVI SIONS The manual number i s given on the bot tom left of the b ack cov er. Pri nt D ate Manual Num ber Revision Oct., 200 0 SH (NA) -0 80124- A First print ing May.
A - 7 A - 7 The manual number i s given on the bot tom left of the b ack cov er. Pri nt D ate Manual Num ber Revision Jun., 2004 SH (NA) - 080124-F Correction SAFET Y PRECAU TIONS, Manuals, G eneric T erms And Abbre viations, Section 1 .2, 2.1.2, 2. 2.
A - 8 A - 8 The manual number i s given on the bot tom left of the b ack cov er. Pri nt D ate Manual Num ber Revision Nov., 20 06 SH ( NA) -080 124-K Add ition SAFET Y PRECAUT IONS Correction Section 2.5.2 , 3.2.2, 4.2.1, 4.2.2, 4.3, 4.8.1, 4.8 .2, 5.
A - 9 A - 9 The manual number i s given on the bot tom left of the b ack cov er. Pri nt D ate Manual Num ber Revision Aug., 20 09 SH (N A) -080 124-O Correction Generic T erms And Abbrev iations, Sec tion 1.3, 2.5.1, 2.7, 3.3.2, 6.4.2, Chapter 8 Sections added Section 8 .
A - 10 A - 10 INTRODUCT ION Thank you for purch asing t he Mitsubis hi MELSEC- Q ser ies program mable c ontrollers. Before us ing this pr oduct, please re ad this m anual car efull y and develo p fam iliarity with t he functions and perform ance of the M ELSEC-Q series program mable controller to handle th e product c orrectl y.
A - 11 A - 11 3 SPECI FICATI ONS 3- 1 t o 3-6 4 3.1 Per form ance Sp ecif icat ions ............................................................................................... ..................... 3- 1 3.1.1 O ptic al loop s ystem perfor manc e spec if ica ti ons .
A - 12 A - 12 4.8.2 Coax ial bus system ..................................................................................................... ..................... 4-23 4.9 Of fline T ests from GX Dev eloper ...........................................
A - 13 A - 13 7 APP LICATIO N FUN CTIONS 7- 1 t o 7-44 7.1 T ransie nt Trans mis sion F unction (Non- Perio dical C omm unicat ion) ..................................................... 7- 2 7.1.1 L ink Ded icated i nstru ction .......................
A - 14 A - 14 8.5 Pr oced ure for Replaci ng a N orm ally Oper atin g Redun dant Po wer S upply M odul e ............................. 8-59 8.6 H/W Inf ormation ..........................................................................................
A - 15 A - 15 MANUAL S The m anuals relate d to this product are l isted be low. Order eac h manual as needed, r eferring to the follo wing lists . Releva nt manuals Manual nam e Manual num ber (model.
A - 16 A - 16 GENERIC T ERMS AND A BBREVIAT IONS Generic term/abbreviation Description QJ71LP21 The abbreviation for the Q J71LP21, QJ71LP21-25, QJ71LP21S-25, QJ71LP21G, QJ71LP21GE MELSECN ET/H network module. How ever, especially in cases to s how different models, the QJ71LP2 1, QJ 71LP21-25, QJ71LP21S-25, QJ71LP21G and QJ71LP21GE are printed.
A - 17 A - 17 Generic term/abbreviation Description C Controller module A generic term for the Q06CCPU-V-H 01, Q06CCPU-V, Q06CCPU-V-B, Q12DCCPU-V, and Q24DHCCPU-V type C Controller m odules QnACPU A g.
A - 18 A - 18 DEFINITIONS OF TERMINOLOGY Term Description Cyclic transmis sion Function by w hich data communications are per formed periodically between a remote master station and remote I/O stations using link devices (LB/L W/LX/LY ) of network modules.
A - 19 A - 19 PACKING LIST Model nam e Part nam e Quantity QJ71LP21 QJ71LP21 MELSE CNET/H Networ k Module (optical l oop type) 1 QJ71LP21-25 QJ71LP21-25 MELSE CNET/H Network Mod ule (optical l oop typ.
A - 20 A - 20 MEMO.
1 - 1 1 - 1 MELSEC-Q 1 OVERVIE W 1 OVERVIEW The M ELSECN ET/H s ystem inclu des th e foll owing 2 types of net work s: 1) PLC to PLC net work f or comm unications betwee n a contro l statio n and norm.
1 - 2 1 - 2 MELSEC-Q 1 OVERVIE W 1.1 Overv iew The M ELSECN ET/H rem ote I/O networ k s ystem has more fu nctiona lit y and capac ity than th e form er networ k s ystem , MELSECN ET/10 n etwork system (here after r eferred to as MELS ECNET /10).
1 - 3 1 - 3 MELSEC-Q 1 OVERVIE W The follow ing tabl e shows the type s of netwo rks the CPU mod ules can be conne cted to. CPU m odule Type of net works that can be us ed wi th CPU Network to be conn.
1 - 4 1 - 4 MELSEC-Q 1 OVERVIE W (d) The fo llowin g func tions fa cilitate network conn ectio n: 1) An y stat ion to be co nnected i n the futur e can be spec ified as a reserved stat ion. Specif ying a st ation not ac tuall y connect ed as a reserv ed stat ion preve nts a comm unicat ion err or.
1 - 5 1 - 5 MELSEC-Q 1 OVERVIE W (g) T he redun dant s ystem uses th e m ultiplex rem ote mas ter func tion t o contr ol I/O m odules and inte lligent funct ion modu les.
1 - 6 1 - 6 MELSEC-Q 1 OVERVIE W (3) Providing versatil e communication servic es (a) Rea ding dat a from and writi ng data to intel ligent f uncti on m odules m ounte d on rem ote I/O stat ions ar e eas y. There ar e four metho ds av ailabl e for re ading a nd wri ting.
1 - 7 1 - 7 MELSEC-Q 1 OVERVIE W 3) By refreshi ng the inte lligent f unction m odule data i nto the rem ote I/O module's data regis ter D b y the a utom atic ref resh s etting of the intell igen.
1 - 8 1 - 8 MELSEC-Q 1 OVERVIE W (4) Enhanced RAS functions ( Refer to Section 3. 2.2 "RAS functions") (a) W hen a f ault y statio n reco vers a nd can resum e norm al op eratio n, it autom atical ly retur ns to t he net work to r esum e the da ta c omm unication using th e autom atic retur n funct ion.
1 - 9 1 - 9 MELSEC-Q 1 OVERVIE W (6) Improved netw ork functions (a) Int elligen t functi on mod ules m ounted t o rem ote I/O s tations c an be diagnos ed us ing the GX De velop er system m onitor.
1 - 10 1 - 10 MELSEC-Q 1 OVERVIE W 1.3 Abbrevi ations Used in the Text, Tabl es and Di agrams of This Ma nual (1) Abbrev iations Abbreviation Name M R Remote master station R Remote I/O station DM R Multiplex ed remote master DSM R Multiplex ed remote sub-master (2) Ma rking fo rmat Station number (1 to 64) Abbreviation Network No.
1 - 11 1 - 11 MELSEC-Q 1 OVERVIE W 1.4 Functions Added/Chang ed w ith Upgrade to Function Versi on D The f ollowing table lists t he ad ditional /alter ed func tions f or net work modules of f unction vers ion D.
2 - 1 2 - 1 MELSEC-Q 2 SYSTEM CONFIGURATION 2 SYSTEM CONFI GURATION This i ntroduc es a s ystem com prised of rem ote I/O netw orks. POINT (1) Rem ote I/O network s an d PLC to PLC ne twork s cannot be mix ed on th e sam e MELSE CNET/H n etwork . Alwa ys build se parat e networ ks .
2 - 2 2 - 2 MELSEC-Q 2 SYSTEM CONFIGURATION 2.1.2 Setting it ems (1 ) Table 2.1 lis ts the setting ite ms on the m aster module of the rem ote master station (MR) and the par ameter s etting items on GX Developer .
2 - 3 2 - 3 MELSEC-Q 2 SYSTEM CONFIGURATION (2) Tabl e 2.2 lists the se ttin g items on the re mote I/ O module o f the re mote I/ O statio n (R) and th e param eter set ting i tems on GX De velo per. Table 2.2 Remote I/O station setting items Setting ite ms Remote I/O sta tion (R ) Refer ence Network m odule switch STAT ION NO.
2 - 4 2 - 4 MELSEC-Q 2 SYSTEM CONFIGURATION 2.2 Multiple Remote I/O Network (P rocess CPU) 2.2.1 Config uration A mult iplex ed rem ote I/O net work s ystem inc ludes a m ultiplex ed rem ote m aster s tation and a m ultip lexed r em ote sub-m aster s tatio n.
2 - 5 2 - 5 MELSEC-Q 2 SYSTEM CONFIGURATION 2.2.2 Setting it ems (1) Table 2. 3 lists the p aram eter sett ing it em s of the m ulti plexed r emote m aster stat ion (D M R ) and m ulti plexed r em ote sub-m aster stat ion (D SM R ).
2 - 6 2 - 6 MELSEC-Q 2 SYSTEM CONFIGURATION (2) Table 2. 4 lists t he set ting i tems that can b e set on a rem ote I/O module opera ting as a r emote I/O stat ion (R) an d the p arameter sett ing it ems that can be set f rom GX Devel oper.
2 - 7 2 - 7 MELSEC-Q 2 SYSTEM CONFIGURATION 2.3 Multipl exed Remote I/O N etwor k for Redundant System (R edundant CPU ) 2.3.1 Config uration The red undant system inc luding th e Redu ndant C PU ut ilizes t he m ultiplex ed rem ote I/O net work s ystem in order to c ontrol I/O m odules and inte lligent funct ion m odules .
2 - 8 2 - 8 MELSEC-Q 2 SYSTEM CONFIGURATION 2.3.2 Setting it ems (1) Table 2. 5 lists the p aram eter sett ing it em s of the m ulti plexed r emote m aster stat ion (D M R ) and m ulti plexed r em ote sub-m aster stat ion (D SM R ). In the r edund ant s ystem, th e same n etwork param eters ar e set to both t he contr ol and s tandb y system s.
2 - 9 2 - 9 MELSEC-Q 2 SYSTEM CONFIGURATION (2) Table 2. 6 lists t he set ting i tems on t he rem ote I/O mod ule, par ameter s ettin g item s on GX Deve loper an d inte llige nt func tion m odule param eter set ting items on GX Config urator. Table 2.
2 - 10 2 - 10 MELSEC-Q 2 SYSTEM CONFIGURATION 2.4 Multiple Remote I/O Network 2.4.1 Config uration A mult iple r emote I/O n etwor k s y stem is a net work syste m with m an y network s connec ted to it. Set a u nique number . The n umber s can be set within a range f rom 1 to 23 9.
2 - 11 2 - 11 MELSEC-Q 2 SYSTEM CONFIGURATION 2.4.2 Setting it ems (1) Table 2. 7 lists the s etting items for the m aster modul e mai n modu le for a rem ote mas ter statio n (MR) and t he param eter se ttings from the GX Develop er.
2 - 12 2 - 12 MELSEC-Q 2 SYSTEM CONFIGURATION (2) Table 2. 8 lists t he set ting i tems f or the r emote I/O modu le m ain mod ule for the rem ote I/O sta tion ( R) an d the par ameter sett ing it ems from the G X De velop er.
2 - 13 2 - 13 MELSEC-Q 2 SYSTEM CONFIGURATION 2.5 Applicable Sy stems 2.5.1 Applicable sy stems for remote master stati ons This sectio n desc ribes appli cable s ystem s of r emote m aster st atio ns. No. of mount able m odules is the m axim um num ber of mountab le net work m odules wi th CC- Link IE Cont rolle r Netwo rk.
2 - 14 2 - 14 MELSEC-Q 2 SYSTEM CONFIGURATION (3 ) Ne tw or k ty pe The a vailabl e net work t ype var ies dep ending on the CPU m odule type, t he functi on vers ion of the m aster m odule, and th e vers ion of GX Deve loper/G X Wo rk s 2 .
2 - 15 2 - 15 MELSEC-Q 2 SYSTEM CONFIGURATION 2.5.2 Applicable systems for remote I/O stations This sectio n exp lains applic atio n system s of rem ote I/O s tatio ns. Mount a rem ote I/O m odule to a CPU slot of an y of the m ain base un its. (1) Applicable main base u nits, pow er supply modul es and No.
2 - 16 2 - 16 MELSEC-Q 2 SYSTEM CONFIGURATION (2) Applicable ex tension base units A s ystem with a rem ote I/O m odule ca n be con nected with ex tens ion bas e units .
2 - 17 2 - 17 MELSEC-Q 2 SYSTEM CONFIGURATION (4) Applic able modules The Q s eries m odules can be used on rem ote I/O statio ns. Note that some modules have re strictions. (a) Func tiona l res trict ions The us e of int errupt pointer s and dedic ated i nstruct ions f or int elligen t functi on modul es are not supp orted.
2 - 18 2 - 18 MELSEC-Q 2 SYSTEM CONFIGURATION (7) Online module chang e In the f ollo wing cas es, the online m odul e change cann ot be p erform ed. (a) W hen an extensi on base unit ( type re quirin.
2 - 19 2 - 19 MELSEC-Q 2 SYSTEM CONFIGURATION 2.6 W hen Using a Multi ple CPU S ystem Tak e the foll owing points into co nsider ation when c onfig uring a r em ote I/O n etwork by util izing mult iple CPU s yste m . (1) Use t he master module of functio n versi on B or later.
2 - 20 2 - 20 MELSEC-Q 2 SYSTEM CONFIGURATION (4) By conn ecting t o a rem ote I/ O statio n for access t o other stat ions, G X Devel oper can ac cess st ations in th e other network syst em, wh ether th e rela y stations in t he multip le C PU syst em are c ontro lled b y the sam e or d ifferent CPUs.
2 - 21 2 - 21 MELSEC-Q 2 SYSTEM CONFIGURATION (5) When al l of the follo wing co nditio ns fr om a) to d) are m et, us e a MELSE CNET/H m odule whose ser ial No. (firs t five digits ) is "100 42" or la ter. (a) A mu ltipl e CPU s ystem contai ning a Buil t-in Et hernet por t QCPU is config ured.
2 - 22 2 - 22 MELSEC-Q 2 SYSTEM CONFIGURATION 2.7 Checking Functi on Version and Serial No. The s erial N o. and f unction vers ion of the n etwork modul e can be conf irmed on the rat ing pl ate and GX D evelope r's sy stem moni tor. (1) Checking the serial No.
2 - 23 2 - 23 MELSEC-Q 2 SYSTEM CONFIGURATION (3) Checking the serial No. on the sy stem monitor ( Product Information List) To display the system moni tor, sele ct [Diagno stics] [System monit or] Prod uct Inf .
3 - 1 3 - 1 MELSEC-Q 3 SPECIFICATIONS 3 SPECIFICATIONS The f ollowi ng des cribes the network syst em s pecifica tions , perf ormanc e spec ificat ions and t he spec ifica tions f or se ndin g and rec eiv ing link dat a. For gen eral s pecif icati ons, ref er to t he user's man ual of the CPU m odule t o be us ed on th e n et wo rk sy ste m.
3 - 2 3 - 2 MELSEC-Q 3 SPECIFICATIONS Item Remote master stati on Remote I/O st ation QJ71L P21 QJ 71LP21G QJ71L P21GE Q J71LP 21-25 Q J71LP 21S-25 QJ72LP25- 25 QJ72LP25G QJ72LP25G E Number of occupi ed I/O poi nts 32 poi nts (Intel ligen t functio n modul e: 32 points ) 48 poi nts (I/O A ssignm ent: emp ty; f irs t 16 , intelli.
3 - 3 3 - 3 MELSEC-Q 3 SPECIFICATIONS 3.1.2 Coaxi al cable system per formance specifications Table 3.2 l ists the perf orm ance of th e coaxi al bus s yste m.
3 - 4 3 - 4 MELSEC-Q 3 SPECIFICATIONS 3.1.3 Optical fiber cabl e specifications This sectio n exp lains th e spec ifica tions of the optical fiber cables used with t he MELSE CNET /H optica l loop system . Conf irm tha t the c able in use confor ms to the deta ils of the op tical f iber c able s pecif icatio ns.
3 - 5 3 - 5 MELSEC-Q 3 SPECIFICATIONS 3.1.4 Coaxi al cable specifications The f ollowi ng tab le lists the specific atio ns of t he co axial cables used f or the coax ial bus sy st e m.
3 - 6 3 - 6 MELSEC-Q 3 SPECIFICATIONS (2) Connecting the coax ial cable connectors The f ollowing sect ion exp lains h ow to c onnec t the B NC connec tor (t he con nector plug f or the c oaxia l cab le) to th e cab le. (a) Using a BN C connec tor m anufactur ed by DDK Lt d.
3 - 7 3 - 7 MELSEC-Q 3 SPECIFICATIONS 4) Solder the contact to the i nternal conductor. 5) Insert the connector as sembly shown in 4) i nto the plug shell and screw the nut i nto the plug shel l.
3 - 8 3 - 8 MELSEC-Q 3 SPECIFICATIONS (b) Usin g a BN C conn ector m anuf actured by Canar e E lectric C o., L td. The f ollowi ng exp lains h ow to c onnec t the BCP-C 3B, B CP-C5 B, or BCP- C5FA t o the ca ble.
3 - 9 3 - 9 MELSEC-Q 3 SPECIFICATIONS 3) Af ter the crim p, ch eck the crim p height of th e crim p part . W hen the crim p heig ht at th e meas urem ent posit ion is betwe en 1.4m m and 1.5mm , the p in is pr operl y crim ped. If the crim p heigh t is no t bet ween 1.
3 - 1 0 3 - 1 0 MELSEC-Q 3 SPECIFICATIONS 3.2 Function Specificati ons The fo llowin g int roduce s the ME LSECNE T/H re mote I/ O netwo rk funct ion s.
3 - 1 1 3 - 1 1 MELSEC-Q 3 SPECIFICATIONS 3.2.1 Cycli c transmission function ( periodic communi cation) The c y clic transm iss ion functi on perio dicall y exchan ges data be tween the remote ma ste.
3 - 1 2 3 - 1 2 MELSEC-Q 3 SPECIFICATIONS (2) Communicating w ith intell igent function modul es The rem ote m aster s tatio n can c omm unicate with th e intel ligent funct ion modu le mounted to t he rem ote I/O s tatio n in t he fol lowing fo ur wa ys.
3 - 1 3 3 - 1 3 MELSEC-Q 3 SPECIFICATIONS (a) T he CPU m odule re ads a nd writes inte lligent funct ion m odule dat a at f ixed inter vals, us ing t he fol lowing devices and s ettin g.
3 - 1 4 3 - 1 4 MELSEC-Q 3 SPECIFICATIONS 4) QCPU fo llows th e refr esh pa ramete rs and refre shes link re gi ster W betwe en QCPU and th e mas ter m odule. [Input/o utput] 5) X /Y(LX/ LY) is the s ame as comm unicat ion wit h I/O m odul e. (b) T he CPU m odule r eads or writ es dat a using a link dedi cated instruc tion (REMFR/R EMTO).
3 - 1 5 3 - 1 5 MELSEC-Q 3 SPECIFICATIONS (c) The CPU m odul e reads and writes in tellige nt func tion m odule data at f ixed inter vals, us ing t he fol lowing devices and s ettin g.
3 - 1 6 3 - 1 6 MELSEC-Q 3 SPECIFICATIONS 4) Li nk regis ter W , follows the com mon par ameters set in the r emote mas ter stat ion for c omm unicati on bet ween th e rem ote m aster s tation and t he rem ote I/O st atio n. 5) Li nk regis ter W betwee n the master modul e and QC PU are ref reshed.
3 - 1 7 3 - 1 7 MELSEC-Q 3 SPECIFICATIONS 3.2.2 RAS functions RAS stan ds for "R eliab ility", "Avail abilit y" and "Ser viceab ilit y" and is an au tomate d facil ity for over all eas e of use.
3 - 1 8 3 - 1 8 MELSEC-Q 3 SPECIFICATIONS (3) Automatic return function W hen a stati on disc onnecte d from a net work due to a d ata li nk error recover s from the error , the s tati on is aut om aticall y recon nected to the networ k and restarts data l ink.
3 - 1 9 3 - 1 9 MELSEC-Q 3 SPECIFICATIONS (4) Loopback function (opti cal loop sy stem) In the opti cal loop syst em, the tran smission path i s dual -stru ctured.
3 - 2 0 3 - 2 0 MELSEC-Q 3 SPECIFICATIONS (c) Precaut ions in us ing the opti cal l oop s ystem 1) W hen the c able is ins erted or rem oved, the lin e (for ward loop/r everse loop) m ay b e switc hed, bu t the da ta link will be perf orm ed norm ally.
3 - 2 1 3 - 2 1 MELSEC-Q 3 SPECIFICATIONS REMARKS If the networ k m odule has becom e faul ty, a loopback ma y not be made depend ing on the fault . In that cas e, the net work may stop. Id entif y the fault y network module i n the follo wing m ethod.
3 - 2 2 3 - 2 2 MELSEC-Q 3 SPECIFICATIONS (6) Transient tr ansmission enabled ev en at CPU modul e error By us ing th is funct ion, t he net work module c an con tinue the tr ansie nt transm ission even if an err or that s tops the CPU m odul e occur s while the s ystem is oper atin g.
3 - 2 3 3 - 2 3 MELSEC-Q 3 SPECIFICATIONS (7) Abnormal detection ti me By usin g this funct ion, the " Time," " Abnorm al detect ion networ k number ," and "Abnorm al detectio n stat ion num ber" c an be c heck ed when a transi ent tra nsmissi on (READ, WRITE and othe r in structi ons) end s abnor mally .
3 - 2 4 3 - 2 4 MELSEC-Q 3 SPECIFICATIONS (8) Diag nostic function The d iagnost ic func tion is u sed to c heck the net work' s line s tatus and the modul e settin g stat us.
3 - 2 5 3 - 2 5 MELSEC-Q 3 SPECIFICATIONS (9) Redundant p ower supply on a remote I/O stati on A redu ndan t powe r supply can be configu red on a remote I/ O statio n by mounti ng a pair of power supp ly modules onto the de dicate d base unit. A red undant power s uppl y off ers the fol lowin g adva ntages .
3 - 2 6 3 - 2 6 MELSEC-Q 3 SPECIFICATIONS POINT For t he spec ifica tions of Q3 RB/Q6 RB Redund ant pow er suppl y base unit and Q6 RP redu ndant power s upply m odule, r efer to Q CPU User's M anual ( Hard ware Design , Mainte nance and In spect ion).
3 - 2 7 3 - 2 7 MELSEC-Q 3 SPECIFICATIONS (c) Prec auti ons on confi guring a re dundan t power sup ply 1) If eith er of the power supp ly m odules fa ils and it ne eds t o be rep laced in a r emote I.
3 - 2 8 3 - 2 8 MELSEC-Q 3 SPECIFICATIONS (10) Online module change on a remote I/O stati on Online m odul e chan ge is th e funct ion for repl acing a Q s eries m odule m ounted on the m ain b ase un it or extens ion bas e uni t of a r emot e I/O sta tion while t he stat ion is oper ating.
3 - 2 9 3 - 2 9 MELSEC-Q 3 SPECIFICATIONS 2) GX Devel oper v ersion s requ ired for onli ne mod ule change on a re mote I/O st ation To perf orm online m odul e chang e, GX Develop er Vers ion 8.18U or later is requir ed. In addi tion, online modu le chang e can also b e perfor med f rom GX Deve loper vi a a network .
3 - 3 0 3 - 3 0 MELSEC-Q 3 SPECIFICATIONS (b) Restrict ion s online modu le change ope ration The f ollowi ng oper ations cann ot be p erform ed wh ile onl ine m odule c hange is per form ed. 1) Is sue an online m odul e chang e reques t from m ore than on e GX Develo per t o a rem ote I/O m odule.
3 - 3 1 3 - 3 1 MELSEC-Q 3 SPECIFICATIONS 3) If an error has oc curr ed on t he target rem ote I/O m odule , the m odule hold s the err or even afte r onlin e modul e change is co mpleted .
3 - 3 2 3 - 3 2 MELSEC-Q 3 SPECIFICATIONS 2) Dou ble-c lick the m odule to be r eplaced onli ne to d isplay t he On line module chan ge scre en. (The ta ble be low in dicat es the c omm unicatio n stat us of the modul e to be rep laced o nline when th e screen belo w is d ispla yed.
3 - 3 3 3 - 3 3 MELSEC-Q 3 SPECIFICATIONS 11) Con nect b etween the ex ternal device and m odule (I /O si gnal) b y the swit ch and so on. 12) Mo unt the m odul e, and then c lick the "Exec ution" button . (The ta ble be low lis ts t he com munic ation s tatus of the new m odule when the sc reen bel ow is displ ayed.
3 - 3 4 3 - 3 4 MELSEC-Q 3 SPECIFICATIONS 3.3 Link Data Send/Re ceive Pr ocessing Time Specificati ons The fo llowin g intr oduces th e metho d of cal culat ing link da ta sen d/receiv e and transm ission de la y time in t he rem ote I/O networ k. 3.3.
3 - 3 5 3 - 3 5 MELSEC-Q 3 SPECIFICATIONS (b) For inte lligen t func tion m odule The f ollowing provi des an exam ple of ho w the link d evice (W ) on th e CPU module side is sen t to an inte lligent funct ion m odule. 1) Dat a is s ent to the rem ote mas ter stat ion W 0.
3 - 3 6 3 - 3 6 MELSEC-Q 3 SPECIFICATIONS (2) Link refresh, link scan, I/O refresh and auto matic refresh (a) Link refresh of the remote master station Link refres h of the rem ote master stat ion is perform ed in the END process ing of the C PU m odule.
3 - 3 7 3 - 3 7 MELSEC-Q 3 SPECIFICATIONS (b) Link scan Link scans ca n be per form ed s ynchronous ly wit h seq uence sc ans of the CPU m odule ( END s ynchro nizatio n) or as ynchr onousl y with them (END async hroni zation) . Sel ect EN D synch roniz ation o r END a syn chroniz ati on, re ferr ing to the foll owin g.
3 - 3 8 3 - 3 8 MELSEC-Q 3 SPECIFICATIONS (3) Link data when communi cation error station/communication stop station has occurred If a d ata link com municat ion er ror or c omm unicat ion sto p occur.
3 - 3 9 3 - 3 9 MELSEC-Q 3 SPECIFICATIONS (4) SB/SW w hen a commu nication err or station/communication sto p station occurs on the n etwork The stat us of wheth er there are an y comm unicat ion error /comm unicat ion stop statio ns on the net work can be c heck ed with th e link spe cial re la y/register (SB/S W ).
3 - 4 0 3 - 4 0 MELSEC-Q 3 SPECIFICATIONS 3.3.2 Transmissi on delay ti me The nam es of item s (1), ( 2) on the fo llowin g pages indic ate t hose b etween the foll owing s tat ions.
3 - 4 1 3 - 4 1 MELSEC-Q 3 SPECIFICATIONS (1) Remote master station remote I/O station (a) C yclic tr ansm iss ion (X/ Y/W periodic comm unicat ion) Transm issio n dela y tim e of X /Y/W is the sum of th e follo wing.
3 - 4 2 3 - 4 2 MELSEC-Q 3 SPECIFICATIONS [Y t ransmissio n delay ti me (T DY )] (END synchr onizati on) [Remote m aster stat ion sc an tim e (Sm ) > li nk sc an tim e (LS)] T DY = (S m + m) + LS + T RIOR [ms ] LS LS LS LS LS T DY Y The remote mast er station sets Y to on near 0 s tep.
3 - 4 3 3 - 4 3 MELSEC-Q 3 SPECIFICATIONS [W input tr ansm ission de lay tim e (T DB1 )] (END synchr oniza tion) [Remote m aster stat ion sc an tim e (Sm ) > li nk sc an tim e (LS)] T DB1 = (Sm + .
3 - 4 4 3 - 4 4 MELSEC-Q 3 SPECIFICATIONS [W outp ut tra nsmis sion del ay tim e (T DB2 )] (END sy nchroniz ation ) [Remote m aster stat ion sc an tim e (Sm ) > li nk sc an tim e (LS)] T DB2 = (Sm .
3 - 4 5 3 - 4 5 MELSEC-Q 3 SPECIFICATIONS 2) In t he cas e of END as ynchr onizat ion [X tra nsmis sion del ay tim e (T DX )] (E N D asy n chr on iz ati on ) [Remote m aster stat ion sc an tim e (Sm ).
3 - 4 6 3 - 4 6 MELSEC-Q 3 SPECIFICATIONS [Y t ransmissio n delay ti me (T DY )] (END as y nchronization) [Remote m aster stat ion sc an tim e (Sm ) > li nk sc an tim e (LS)] T DY = (S m + m) + LS 2 + T RIOR [m s] Y Remote statio n sets Y to on near 0 s tep.
3 - 4 7 3 - 4 7 MELSEC-Q 3 SPECIFICATIONS [W input tr ansm ission de lay tim e (T DB1 )] (END as y nchronization) [Remote m aster stat ion sc an tim e (Sm ) > li nk sc an tim e (LS)] T DB1 = Sm + .
3 - 4 8 3 - 4 8 MELSEC-Q 3 SPECIFICATIONS [W outp ut tra nsmis sion del ay tim e (T DB2 )] ( END as ynchr onizati on) [Remote m aster stat ion sc an tim e (Sm ) > li nk sc an tim e (LS)] T DB2 = (S.
3 - 4 9 3 - 4 9 MELSEC-Q 3 SPECIFICATIONS (b) REMFR/REMTO/READ/ W RITE instru ctions REMFR/RE MTO/READ/ WRITE instru ctions tran smission del ay ti me is the sum of the f ollo wing.
3 - 5 0 3 - 5 0 MELSEC-Q 3 SPECIFICATIONS (2) Multiplexed r emote master stati on multiple xed remo te sub- master station (a) Cycli c transmissio n (LB/L W /L X/LY periodic co mmunicat ion) The tra n.
3 - 5 1 3 - 5 1 MELSEC-Q 3 SPECIFICATIONS POINT W hen the Block sen d/recei ve dat a assur ance per sta tion se tting is ena bled, t he foll owing f orm ulas ar e use d.
3 - 5 2 3 - 5 2 MELSEC-Q 3 SPECIFICATIONS 2) In t he cas e of END as ynchr onizat ion [Trans mis sion dela y tim e of B/W / Y comm unicatio n] (E ND as ynchro nizat ion) 1) Mult iplex ed rem ote m ast.
3 - 5 3 3 - 5 3 MELSEC-Q 3 SPECIFICATIONS (b) SEND/R ECV/RECVS/RE AD/ W RITE/REQ /ZNRD/ZNWR ins truction communi cation The tra nsm ission d ela y time of instruct ion c omm unicati on is t he sum of .
3 - 5 4 3 - 5 4 MELSEC-Q 3 SPECIFICATIONS (3) Link refresh time The l ink ref resh tim e (C PU m odule end proc essing tim e extens ion) is calc ulate d as show n below .
3 - 5 5 3 - 5 5 MELSEC-Q 3 SPECIFICATIONS (b) W hen a m aster m odule is con nected to ext ensio n bas e unit Constant CPU type KM 1 KM 2 ( 10 –3 ) KM 3 ( 10 –3 ) High Performance model QCPU Q02CPU 0.30 1.20 0.47 Other than above 0.13 0.97 0.53 Process CPU 0.
3 - 5 6 3 - 5 6 MELSEC-Q 3 SPECIFICATIONS (4) Link scan time Link scan tim e is based on a ca lcula tion of the f ollowi ng fac tors. • Link devic e assig nment po ints • Num ber of st ations conn ected [Link scan time] [Comm unicati on speed: 10 Mbps] LS = KB + (0.
3 - 5 7 3 - 5 7 MELSEC-Q 3 SPECIFICATIONS (5) Refresh time with the remote I/O module, I/O module and intelligent function module Refres h tim e with t he rem ote I/O m odule, I/O m odule and inte lligent funct ion module is ac cordi ng to t he for mula s hown below.
3 - 5 8 3 - 5 8 MELSEC-Q 3 SPECIFICATIONS (6) Transmission delay ti me formula The tra nsm ission d ela y time is calc ulated based on the follo wing s ystem desig n and co ndit ions.
3 - 5 9 3 - 5 9 MELSEC-Q 3 SPECIFICATIONS (d) C y clic tran smission delay Since Sm = 1 [m s],LS = 11.8 [m s], th e Sm < LS f orm ula is used. 1) Inpu t tran smission de lay ti me (T DX )] T DX = (S m + m) r ound up [LS/(Sm + m) ] 2 + Sm + T RIOR = (1 + 0.
3 - 6 0 3 - 6 0 MELSEC-Q 3 SPECIFICATIONS 3.3.4 Output holding time during system switch ing in the multiplexed remote I/O network for redundant system In th e mult iplexed rem ote I/O networ k f or r.
3 - 6 1 3 - 6 1 MELSEC-Q 3 SPECIFICATIONS (b) CPU system swit ching time > Switchin g time fro m the multip lexed remot e ma ster stat ion to the m ultip lexed r emote s ub-m aster st ati on Standb.
3 - 6 2 3 - 6 2 MELSEC-Q 3 SPECIFICATIONS (2) System switching when a system switching dedicated instruction is executed, a sy stem switching request is issued by GX Developer , or the link cabl e is .
3 - 6 3 3 - 6 3 MELSEC-Q 3 SPECIFICATIONS (b) CPU system swit ching time > Switchin g time fro m the multip lexed remot e ma ster stat ion to the m ultip lexed r emote s ub-m aster st ati on Standb.
3 - 6 4 3 - 6 4 MELSEC-Q 3 SPECIFICATIONS (3) System switching w hen the link cable disconnection occurs in the host networ k module If a com munic ation er ror oc curs du e to l ink cab le disc onnect ion on the hos t network module, it will cons idera bly incre ase "data l ink m onitoring tim e + switc hing m onit oring t ime ".
4 - 1 4 - 1 MELSEC-Q 4 SETTI NG AND PROCEDURE BEFORE OP ERATION 4 SETTING AND PROCEDURE BEFORE OPERATION This chapter expla ins th e proced ures, settin gs, co nnecti ons an d test ing tha t are requir ed to s tart t he data link operat ion.
4 - 2 4 - 2 MELSEC-Q 4 SETTI NG AND PROCEDURE BEFORE OP ERATION 4.2 Part Names an d Setting s 4.2.1 QJ71LP21, QJ71LP21- 25, QJ71LP21S- 25, QJ71LP21G, QJ71 LP21GE, QJ71BR11 (Remote master stati on) (1) QJ71LP21, QJ71LP21- 25, QJ71LP21S-2 5, QJ71LP21G, QJ71LP21GE (a) LED indications No.
4 - 3 4 - 3 MELSEC-Q 4 SETTI NG AND PROCEDURE BEFORE OP ERATION No. Nam e LED stat us Descrip tion 7 ERR. ON (red ) • Station num ber setting error (ot her than 0 t o 64.
4 - 4 4 - 4 MELSEC-Q 4 SETTI NG AND PROCEDURE BEFORE OP ERATION (c) Mode sett ing sw itch This s witch s ets the oper ation m ode. (F actor y defaul t: 0) Set t he m ode settin g switc hes in the s ame p osition on all networ k m odules.
4 - 5 4 - 5 MELSEC-Q 4 SETTI NG AND PROCEDURE BEFORE OP ERATION (2) QJ71BR11 (a) LED indications Same as th e optica l loop s ystem . (Refer to Sect ion 4.2. 1 (1).) (b) St ation n um ber sett ing s witches Thes e switch es set t he sta tion num ber of the network modul e in th e network .
4 - 6 4 - 6 MELSEC-Q 4 SETTI NG AND PROCEDURE BEFORE OP ERATION 4.2.2 QJ72LP25-25, Q J72LP25G, QJ72LP25 GE, QJ72BR15 (1) QJ72LP25-25, QJ72LP25G, QJ72LP2 5GE (a) LED indications No. Nam e LE D status Descrip tion 1 RUN ON (green) Normal operat ion OFF Watc hdog timer error (hard ware failure) 2 REM.
4 - 7 4 - 7 MELSEC-Q 4 SETTI NG AND PROCEDURE BEFORE OP ERATION No. Nam e LED stat us Desc ription 7 ERR. 1 ON (red) • S tation num ber setting error (oth er than 1 to 64), mode sett ing error (set to dis abled), or operating c ondition set ting error (in parameter) • A s tation with the sam e station number exist s in the network .
4 - 8 4 - 8 MELSEC-Q 4 SETTI NG AND PROCEDURE BEFORE OP ERATION (b) RS-232 connector A RS- 232 ca ble for a per iphe ral is conn ected. (c) Statio n num ber se tting s witc hes Thes e switch es set t he sta tion num ber of the network modul e in th e network .
4 - 9 4 - 9 MELSEC-Q 4 SETTI NG AND PROCEDURE BEFORE OP ERATION (e) IN/OUT conn ectors An opti cal fibe r cable co nnecto r is conne cted . (Re fer to S ection 4.
4 - 10 4 - 10 MELSEC-Q 4 SETTI NG AND PROCEDURE BEFORE OP ERATION (2) QJ72BR15 (a) Indicator LEDs Same as th e optica l loop s ystem . (Refer to Sect ion 4.2. 2 (1).) (b) RS-232 connector Same as th e optica l loop s ystem . (Refer to Sect ion 4.2. 2 (1).
4 - 11 4 - 11 MELSEC-Q 4 SETTI NG AND PROCEDURE BEFORE OP ERATION 4.3 Installing and Uninstalling the Module (1) Installing the module Fully insert the module fixing latch into t he modu le fixi ng hole in the base unit (exercise care not to allow the mo dule fixing latch to separate from the module fi xing hole).
4 - 12 4 - 12 MELSEC-Q 4 SETTI NG AND PROCEDURE BEFORE OP ERATION [Mod ule han dlin g precau tion s] • Since th e modu le cas e is m ade of res in, do not drop it or s ubject i t to str ong impac ts. • The m odule can be eas ily fi xed on to the base uni t using the ho ok at t he top of the m odule.
4 - 13 4 - 13 MELSEC-Q 4 SETTI NG AND PROCEDURE BEFORE OP ERATION 4.4 Stopping the CP U (Uni ntentional Output Pr eventi on) STOP RUN Set the CP U modu le's RU N/S TOP swi tc h to th e STOP side . 4.5 Checking the Input Pow er Supply Vol tage Check that th e suppl y powe r voltage to the power s upply m odule is wit hin the specif icat ions.
4 - 14 4 - 14 MELSEC-Q 4 SETTI NG AND PROCEDURE BEFORE OP ERATION 4.7 Unit Tests of the Netw ork Module ( Offline Test) The ne twork modu le and the conn ected c able shall be tes ted bef ore ex ecutin g the data link op eration . Selec t the test i tem wit h the m ode sett ing s witch on the f ront of the network module.
4 - 15 4 - 15 MELSEC-Q 4 SETTI NG AND PROCEDURE BEFORE OP ERATION 4.7.1 Self-loopback tes t This test ch ecks the inter nal c ircuits inclu ding t he send/r eceiv e circ uits of the net work module togeth er wit h the c onnecte d cab le. POINT Alwa ys connec t a c able or term inatin g resis tors when p erfor ming t he self -loopb ack test.
4 - 16 4 - 16 MELSEC-Q 4 SETTI NG AND PROCEDURE BEFORE OP ERATION REMARKS Check the tes t condi tion a nd err or det ails with the f ollow ing link spec ial reg ister areas .
4 - 17 4 - 17 MELSEC-Q 4 SETTI NG AND PROCEDURE BEFORE OP ERATION 4.7.2 Internal sel f-loopback test This test ch ecks the inter nal c ircuits inclu ding t he send/r eceiv e circ uits of the net work m odule. (1) Do not co nnect an opt ical fi ber cab le for t he QJ 71LP21/ QJ72L P25 n etwork module (for the op tical l oop s ystem) .
4 - 18 4 - 18 MELSEC-Q 4 SETTI NG AND PROCEDURE BEFORE OP ERATION REMARKS Check the tes t condi tion a nd err or det ails with the f ollow ing link spec ial reg ister areas .
4 - 19 4 - 19 MELSEC-Q 4 SETTI NG AND PROCEDURE BEFORE OP ERATION 4.7.3 Hardw are test This test ch ecks the inter nal c ompone nts of the net work m odule. (1) For the QJ71L P21/QJ7 2LP25 ne twork module (for the optica l loop s y stem ), connec t the I N connec tor a nd OUT connec tor with an op tical fi ber cab le.
4 - 20 4 - 20 MELSEC-Q 4 SETTI NG AND PROCEDURE BEFORE OP ERATION REMARKS Check the tes t condi tion a nd err or det ails with the f ollow ing link spec ial reg ister areas .
4 - 21 4 - 21 MELSEC-Q 4 SETTI NG AND PROCEDURE BEFORE OP ERATION 4.8 Cable Connecti ons 4.8.1 Optical loop sy stem (1) Precautions when connecti ng (a) The t ype of cables th at can be used wi ll var y according t o the dista nce between stati ons.
4 - 22 4 - 22 MELSEC-Q 4 SETTI NG AND PROCEDURE BEFORE OP ERATION (2) Cable connection (a) How to conn ect the c able Note th at th ere is n o need to connec t the cab les in the order of st ation numbe rs. Set th e statio n numbe r of the remote mast er st ation t o 0.
4 - 23 4 - 23 MELSEC-Q 4 SETTI NG AND PROCEDURE BEFORE OP ERATION (c) Re moving the op tical fi ber cabl e The fo llow ing ar e how to r emove th e opt ical fi ber cable : Put the c overs, which were attac hed to the plug before ins tallati on, back on both the plug and jac k to store.
4 - 24 4 - 24 MELSEC-Q 4 SETTI NG AND PROCEDURE BEFORE OP ERATION (b) Cable in stalla tion pre cauti ons 1) Ins tall the co axial ca bles a t least 100 m m ( 3.94 in.) a way fr om oth er power c ables and c ontrol c ables . 2) Cons ider to us e dou ble shi eld c oaxia l cab les in locat ions where th ere is exc ess ive n oise.
4 - 25 4 - 25 MELSEC-Q 4 SETTI NG AND PROCEDURE BEFORE OP ERATION (2) Cable connection (a) Connec tion metho d Connec t the c oaxia l cabl e as s hown be low. Alwa ys insta ll a t erm inating resistor (sold separa tel y: A6RCON- R75) to the statio ns conn ected at both ends.
4 - 26 4 - 26 MELSEC-Q 4 SETTI NG AND PROCEDURE BEFORE OP ERATION 3) W ith a r epeater m odul e (bra nch con necti on) QJ71 BR11 Q J72 BR1 5 QJ72BR15 F-type connector A6RCON-F Coaxial cable A6BR10 T-t.
4 - 27 4 - 27 MELSEC-Q 4 SETTI NG AND PROCEDURE BEFORE OP ERATION (b) Installi ng th e coa xial cable The fo llowin g are how to instal l the coaxial cable : Insert the plug by a ligning the groove of the plug with the projection of the jack.
4 - 28 4 - 28 MELSEC-Q 4 SETTI NG AND PROCEDURE BEFORE OP ERATION 4.9 Offline Tests from GX Devel oper The of fline tests c heck the cab le con nection status usin g the n etwork param eters of GX Devel oper.
4 - 29 4 - 29 MELSEC-Q 4 SETTI NG AND PROCEDURE BEFORE OP ERATION (b) Se tting t he m ode when perf orm ing the f orward loop/r evers e loop test o n the redund ant s ystem W hen conduc ting the f orwar d lo op/rever se loo p test on the r edun dant system , set th e oper ation m ode of t he re dundan t CPU t o the b ackup m ode in a dvance.
4 - 30 4 - 30 MELSEC-Q 4 SETTI NG AND PROCEDURE BEFORE OP ERATION (2) Starting the test (a) High Perf ormanc e model QCPU , Proc ess CPU, and Re dundant CPU Set t he RUN/ STOP s witch o f the CPU modu le t o the ST OP pos ition. W hen resett ing the C PU m odule, use th e RESET /L.
4 - 31 4 - 31 MELSEC-Q 4 SETTI NG AND PROCEDURE BEFORE OP ERATION (3) Checking the test result The T .PASS LED of the net work m odule f lashes at ap proxim atel y 0. 5 s int ervals . W hen the T. PASS LE D flashes 20 t imes (approx. 10s) or mor e and if the ERR.
4 - 32 4 - 32 MELSEC-Q 4 SETTI NG AND PROCEDURE BEFORE OP ERATION 4.10 Networ k Diagnostics from GX Developer (Online Tests) W ith the net work diagnost ic f unction of GX D evelo per, t he line s tatus can e asil y be chec ked an d diagno sed. Conduc t networ k diag nostic s b y connect ing GX Deve loper wi th a r emote m aster stat ion.
4 - 33 4 - 33 MELSEC-Q 4 SETTI NG AND PROCEDURE BEFORE OP ERATION 4.10.1 Loop test (opti cal l oop system only ) This test ch eck s the line stat us (f orward loop or rever se l oop) after al l stat ions ar e connec ted to the op tical l oop s y stem .
4 - 34 4 - 34 MELSEC-Q 4 SETTI NG AND PROCEDURE BEFORE OP ERATION 4.10.2 Setup confir mation test This test ch ecks the switc h sett ing of a net work m odule. The f ollowing item s can b e check ed. 1) Con trol s tatio n over lap st atus ( This c heck is not p erform ed on r emote I/O net work.
4 - 35 4 - 35 MELSEC-Q 4 SETTI NG AND PROCEDURE BEFORE OP ERATION 4.10.3 Station order check test (optical loop system only) This test ch ecks the ord er of c onnect ed sta tions i n the o ptica l loop s ystem .
4 - 36 4 - 36 MELSEC-Q 4 SETTI NG AND PROCEDURE BEFORE OP ERATION 4.10.4 Communication test This test ch ecks whether c om municati ons is norm ally per form ed between the hos t statio n and a comm unica tion-tar get st atio n (spec ified with th e networ k num ber an d statio n num ber).
4 - 37 4 - 37 MELSEC-Q 4 SETTI NG AND PROCEDURE BEFORE OP ERATION MEM O.
5 - 1 5 - 1 MELSEC-Q 5 PARAMETER SETTINGS 5 PARAMETER SETTINGS To oper ate a r emote I/O net work , param eters m ust be s et up f or the CPU m odule on the rem ote m aster s tation and rem ote I/O modu les on r em ote I/O sta tions ac cordi ngl y .
5 - 2 5 - 2 MELSEC-Q 5 PARAMETER SETTINGS (2) Parameter settings for a remote I/O station Networ k parameter se ttings (1) Et hernet (2) C C-Li nk Writi ng paramet ers to remo te I/O modul e Not requi.
5 - 3 5 - 3 MELSEC-Q 5 PARAMETER SETTINGS Table 5.1 Remote master station netw ork parameter setti ng items Network s tation type Paramete r setting ite m Remo te ma st er sta ti o n Reference section Setti ngs with the network m odule — Section 4. 3 Stati on number (STATION No.
5 - 4 5 - 4 MELSEC-Q 5 PARAMETER SETTINGS Table 5.2 Remote I/O station PLC parameter setting items Network s tation type Paramete r setting ite m Remote I/O sta tion Reference section PLC sy stem — Secti on 5.2.1 Points occupied by em pty slot Module s ynchronizati on PLC RAS — Secti on 5.
5 - 5 5 - 5 MELSEC-Q 5 PARAMETER SETTINGS 5.1 Remote Master Sta tion Parameter Setting The rem ote m aster st atio n sets t he net work par ameters to th e CPU m odule. 5.1.1 Setting the nu mber of modul es (Netw ork ty pe) Set t he net work t ype and the st ation t ype for each m odul e.
5 - 6 5 - 6 MELSEC-Q 5 PARAMETER SETTINGS 5.1.2 Networ k settings These p aram eters ar e used to conf igure t he ME LSECN ET/H net work . Set the start ing I/O No., ne twork No., t otal num ber of (slav e) stat ions, group No . and mode f or eac h of th e modu le m odel nam es set in the num ber of m odules settin gs.
5 - 7 5 - 7 MELSEC-Q 5 PARAMETER SETTINGS (4) Group No. (av ailable for multiplex ed remote master/sub- master station only ) Set t he grou p No. to send data s imult aneousl y to o ther s tations in tra nsien t transm ission. (a) Valid s etti ng range 0 : No grou p spec ific ation ( defau lt) 1 to 32 : Group No.
5 - 8 5 - 8 MELSEC-Q 5 PARAMETER SETTINGS (6) Para mete r setting e xample The f ollowi ng is an exam ple f or syst em param eter s ettin gs incl uding r emote mas ter statio n (rem ote I/O network ) and contro lling sta tion ( PLC to P LC net work ).
5 - 9 5 - 9 MELSEC-Q 5 PARAMETER SETTINGS 5.1.3 Common par ameter The c ommon parameter s set the LB, LW , LX and LY cycli c transm ission ranges that allows sen ding and rece iving bet ween a rem ote master station and rem ote I/O stations in a network .
5 - 10 5 - 10 MELSEC-Q 5 PARAMETER SETTINGS REMARKS The l ink dev ice (LX, LY) dat a of t he rem ote mas ter stat ion are refres hed to the intern al user devic es (e.
5 - 11 5 - 11 MELSEC-Q 5 PARAMETER SETTINGS POINT (1) Se t the setting for t he rem ote mas ter stat ion si de to t he inp ut/outp ut num ber of the rem ote I/O stati on modu le that is m ounted.
5 - 12 5 - 12 MELSEC-Q 5 PARAMETER SETTINGS (2) LB/L W setting The L B/LW data on each re mote I/O s tatio n are transf erred to the CP U modu le via L B/LW of the rem ote m aster st ation f or contr ol in t he CPU m odule .
5 - 13 5 - 13 MELSEC-Q 5 PARAMETER SETTINGS POINT (1) Se t so th at the M stat ion R station and M s tatio n R statio n do not over lap. M R R1 R2 Good example M R R1 R2 Bad example M s t at i o n R s.
5 - 14 5 - 14 MELSEC-Q 5 PARAMETER SETTINGS POINT In the c ase of the m ultiplex ed rem ote I/O net work f or redun dant s ystem , set the link devices in th e track ing set tings in the r edund ant param eter s to upd ate the link devic es betwe en the m ult iplexed remo te master stat ion an d mult iplex ed rem ote sub-m aster st ation.
5 - 15 5 - 15 MELSEC-Q 5 PARAMETER SETTINGS 5.1.4 Supplement ary settings The s upplem ental s ettings are i nclude d in c omm on param eter s ettings t o pro vide m ore precis e usa ge. Kee p the d efault s ettings for normal use. Comm on param eters s uppl ementa l are on ly for r emote mas ter statio ns.
5 - 16 5 - 16 MELSEC-Q 5 PARAMETER SETTINGS 2) Max im um No. of returns to s ystem s tations in 1 s can (r efer to Sect ion 3.2.2) Set t he num ber of f ault y statio ns that can re turn to the net work in one link scan.
5 - 17 5 - 17 MELSEC-Q 5 PARAMETER SETTINGS 6) Tr ansient sett ing 2 Set t he exec ution c ondi tions f or the tr ansie nt tra nsm ission. "Maxim um No. of tr ansie nts in 1 scan " Set the num ber of tra nsien ts (tot al for o ne ent ire n etwork ) that a s ingle network can exec ute in one li nk scan.
5 - 18 5 - 18 MELSEC-Q 5 PARAMETER SETTINGS POINT (1) Transient r equest proc essin g ma y be prol onged in a s ystem where tr ansie nt reques ts are made f requent ly (e.g . a s y stem inc luding a rem ote I/O s tation t o which a GOT is m ounted). In suc h a cas e, mak e the fol lowing s etting.
5 - 19 5 - 19 MELSEC-Q 5 PARAMETER SETTINGS 5.1.5 Refresh paramet ers The ref resh param eters ar e used to trans fer t he link devi ce data ( LB, LW , LX , LY) of the net work module to the devices (X, Y, M, L, T , B, C, ST, D, W , R, ZR) of t he C PU module for o perat ion of the s equence program s.
5 - 20 5 - 20 MELSEC-Q 5 PARAMETER SETTINGS (Refr esh param eter sett ing sc reen) POINT The as signm ent im age dia gram can dis pla y schem atic im ages of CC-Link IE Contro ller Net work, CC- Link IE Fie ld Netw ork and MELSECN ET/H (n etwork modules on c ontrol ler net work s, PLC to PLC net works, and rem ote I/O networ ks).
5 - 21 5 - 21 MELSEC-Q 5 PARAMETER SETTINGS 6) End button Click this bu tton to return to the net work s etting sc reen after compl eti ng the da ta set ting s. REMARKS [Ran dom cy clic] i s fo r fu tur e us e. A n e rror w ill no t o ccur e ve n i f it is selec ted , but no process ing will be perform ed.
5 - 22 5 - 22 MELSEC-Q 5 PARAMETER SETTINGS POINT Either of th e follo wing se ttings mus t be m ade to use the en tire device r ange (16K points ) of L B/LW .
5 - 23 5 - 23 MELSEC-Q 5 PARAMETER SETTINGS (1) Concept of the link refreshi ng (a) Link refresh ranges The ran ges th at are s et in Refres h param eters an d that are set with comm on param eters are ref reshed.
5 - 24 5 - 24 MELSEC-Q 5 PARAMETER SETTINGS (2) How to set the refresh parameter s (a) Automatic setting with the Def ault button 1) W hen B/W points set in [De vice] under [ PLC param eter] ar e 8K po ints or m ore (6K points or m ore when three m odules are m ounted) Link devic es are assign ed as shown below.
5 - 25 5 - 25 MELSEC-Q 5 PARAMETER SETTINGS 2) W hen B/W points set in [De vice] under [ PLC par am eter] are less t han 8K poi nts (less than 6K po ints when three modu les ar e m ounted) Link devic es equi valen t to th e B/W points set i n [Dev ice] ar e assi gned, up to th e fo llowin g poi nts for each m odule .
5 - 26 5 - 26 MELSEC-Q 5 PARAMETER SETTINGS (b) Manual setting by di rect input 1) Selec t "Ass ignm ent m ethod ". Selec t "Points /Start " when enter ing link device points and st art addres ses. Selec t "Star t/En d" whe n enter ing star t and end ad dress es of link devices.
5 - 27 5 - 27 MELSEC-Q 5 PARAMETER SETTINGS (3) W hen no refre sh para met ers are se t (Hig h Performance model QCPU, Process C PU, and Redundant CPU) Link devic es are assign ed as shown below.
5 - 28 5 - 28 MELSEC-Q 5 PARAMETER SETTINGS POINT W hen B/W points l ess tha n the f ollowing are s et in [Devic e] under [PLC p aram eter], set refresh para meters accordingly. Or, incr ease th e B/W points to the fol lowin g value or m ore in [Dev ice].
5 - 29 5 - 29 MELSEC-Q 5 PARAMETER SETTINGS (4) Setting exampl e The f ollowing shows an ex am ple of the r efres h param eters s ettings : [Syst em c onfigurat ion] Power suppl y QCPU QJ71 LP21 QJ71 BR11 1M R 2R1 Network No.2 2M R 2R2 1R1 1R3 Network No.
5 - 30 5 - 30 MELSEC-Q 5 PARAMETER SETTINGS [Set ting screen] The fo llowin g show s the sett ing s of the r efre sh para meters fo r each module that are dis played on the screen .
5 - 31 5 - 31 MELSEC-Q 5 PARAMETER SETTINGS 5.1.6 Valid Module D uring Other Station Access This param eter is used to spec if y any of th e fo llowin g mod ules t o be re layed when a data c omm unicatio n reques t for which t he net work No.
5 - 32 5 - 32 MELSEC-Q 5 PARAMETER SETTINGS 5.1.7 Redundant settin gs For t he multi plexe d rem ote m aster st ation f or red undant system , it is necess ar y to set the sam e m ode as th e mod e appl ied to the m ultiplex ed rem ote mas ter stati on (s ystem A) to t he m ultip lexed rem ote sub-m aster stat ion (s ystem B).
5 - 33 5 - 33 MELSEC-Q 5 PARAMETER SETTINGS 5.2 Remote I/O Station Par ameter Settings For rem ote I/O s tati ons, set up th e PLC p arameter s, n etwork parameter s, a nd rem ote pass word on t he rem ote I/O m odule as n eeded.
5 - 34 5 - 34 MELSEC-Q 5 PARAMETER SETTINGS 1: The opera tion m ode of a re mote I/O s tatio n under the error s tatus c an be s et diff erentl y from the param eters of the r em ote master sta tion (CP U modu le).
5 - 35 5 - 35 MELSEC-Q 5 PARAMETER SETTINGS (a) Op erat ional set tings 1) Rem ote I/ O switc h sett ing For futur e expans ion. Cann ot be set at pres ent tim e. 2) Assi gnment meth od Selec t the as signm ent m ethod f or sen ding par ameter s bet ween devi ces: "Point s/Sta rt" o r "Start /End" .
5 - 36 5 - 36 MELSEC-Q 5 PARAMETER SETTINGS POINT W hen the inte lligent funct ion m odule b uffer mem ory is l ocated in se veral d iffer ent areas , the f orwardi ng param eter betwee n dev ices are c onven ient when com bining them for access.
5 - 37 5 - 37 MELSEC-Q 5 PARAMETER SETTINGS (2) Networ k parameters The rem ote I/O modu le ca n set net work par am eters in the sam e wa y as the CPU m odule. Major Ite ms Descr iption Ethernet s ettings Sets the E thernet network param eters. CC-Link set tings Sets the CC-Link sett ings network param eters.
5 - 38 5 - 38 MELSEC-Q 5 PARAMETER SETTINGS (4) Intelligent f unction module pa rameters The par ameter s of a connec ted i ntellig ent func tion m odu le and th e auto r efr esh settin g can be set in rem ote I/O modu les. Major Ite ms D escrip tion Initial setting Set the param eters of an int elligent func tion module.
6 - 1 6 - 1 MELSEC-Q 6 PROGRAMMING 6 PROGRAMMING W hen diverting the program exam ple introd uced in th is chapter to the actu al system , full y check that th ere are no prob lem s in the contro llabil ity of the s y stem . 6.1 Progr amming Pr ecautions This sectio n exp lains th e precau tions in cre ating progra ms usin g data on t he net work .
6 - 2 6 - 2 MELSEC-Q 6 PROGRAMMING List of Interlock Devices No. Name Description Use pe rmitte d/pr ohibi ted Control stat ion Normal station Remote maste r station Remote I/O station Optic al Coax i.
6 - 3 6 - 3 MELSEC-Q 6 PROGRAMMING No. Name Description Use pe rmitte d/pr ohibi ted Control stat ion Normal station Remote maste r station Remote I/O station Optic al Coax ial Optical Coax ial Optica.
6 - 4 6 - 4 MELSEC-Q 6 PROGRAMMING 6.1.2 Progr am exampl e Interl ocks should b e appl ied to the pr ogram s accor ding t o the l ink sta tus of the hos t and o ther st atio ns.
6 - 5 6 - 5 MELSEC-Q 6 PROGRAMMING If the init ial sett ings f or the buff er mem or y of th e inte llige nt func tion m odule on a rem ote I/O sta tion ar e se t by a li nk de dicate d instr uctio n .
6 - 6 6 - 6 MELSEC-Q 6 PROGRAMMING The f ollowing cases m ay oc cur when per form ing the i niti al setti ngs to the in tellige nt functi on m odule. (a) A nalog- digita l convers ion m odule Q 64AD A/D con versio n perm it/prohi bit setting. (b) D igital- ana log con versi on modu le Q62D A D/ A conver sion perm it/prohi bit.
6 - 7 6 - 7 MELSEC-Q 6 PROGRAMMING 6.2 Cycli c Transmission Depend ing on the tim ing of t he link refres h, 32- bit (2- word) t ype link data m ay be brok en up into new and old data in uni ts of 16 bits ( one word) . • Cur rent valu es of an alog -digit al conv erte r module • Curr ent val ues of position ing m odule, c omm and spee d.
6 - 8 6 - 8 MELSEC-Q 6 PROGRAMMING 6.2.2 Block guarantee of cyclic data per station Sin ce link r efresh i s pe rformed by hand shaking b etwee n the CP U and netw ork module s, cycli c data integri ty i s assu red in un its o f stati ons.
6 - 9 6 - 9 MELSEC-Q 6 PROGRAMMING 6.3 Communicati ons with I/O Modul es This sectio n desc ribes the s etting and pr ogramm ing t hat are requ ired f or a C PU to comm unicate with I/O m odules on a remote I/O st ation b y cyclic tr ansmis sion. (1) System config uration ex ample Remo te mast er sta tion Remote I/O sta tion (station No.
6 - 10 6 - 10 MELSEC-Q 6 PROGRAMMING 6.4 Communications with In telligent Function Modules This sectio n desc ribes the s etting and pr ogramm ing t hat are requ ired f or a C PU module to com munic ate with int ellig ent func tion modul es on a r em ote I/O s tatio n by cycli c transmissi on.
6 - 11 6 - 11 MELSEC-Q 6 PROGRAMMING 6.4.1 Progr am example w hen using GX Configurator (1) Setting for the CPU mo dule on the re mote ma ster station Set net work param eters i n GX De velop er. (a) Setting network par ameters • Net work t ype : M NET/H ( Remote m aster) • Start ing I/O No.
6 - 12 6 - 12 MELSEC-Q 6 PROGRAMMING (2) Setting for the remot e I/O module In GX Devel oper, s et the intellig ent func tion m odule s witc hes. (Ref er to Section 6.4 (1).) Also, s et i ntellig ent func tion module param eters in GX C onfigura tor. Configur e th e follo wing se ttings.
6 - 13 6 - 13 MELSEC-Q 6 PROGRAMMING (b) Auto refresh setting 1 CH1 Digital output value ········ "W 11" CH2 Digital output value ········ "W 12" CH3 Digital output.
6 - 14 6 - 14 MELSEC-Q 6 PROGRAMMING (3) Pr ogram ex ample Read the CH1 digital output value Output the error cod e in BCD Turn ON the error clear reque st (Y F) Turn OFF th e error clear reque st (Y .
6 - 15 6 - 15 MELSEC-Q 6 PROGRAMMING 6.4.2 Progr am example w hen not using GX Configurator POINT Exe cution o f the RE MFR/RE MTO inst ruction ne eds sev eral sca ns. Theref ore, th e execu tion r esult of the R EMFR/R EMTO instruct ion c annot b e synchr onized with o peratio ns of the I/O signa ls.
6 - 16 6 - 16 MELSEC-Q 6 PROGRAMMING (3) Pr ogram ex ample Averaging processing setting Master station baton pass st atus c hec kin g * Remo te I/O station o perating st atus checki ng * Set the A /D .
6 - 17 6 - 17 MELSEC-Q 6 PROGRAMMING.
6 - 18 6 - 18 MELSEC-Q 6 PROGRAMMING 6.5 Link Dedicated Inst ruction List The following table outlines the ins tructions that can be used for the MELSECNET /H. For det ails on the f ormat a nd pr ogram exam ples of eac h ins tructi on, ref er to t he applic able s ectio n list ed in the Refere nce sec tion c olum n.
6 - 19 6 - 19 MELSEC-Q 6 PROGRAMMING In stru cti on Name Executi on stati on Descr iptio n Target stat ion Refer ence sect ion Process CPU Redundant CPU 2 Mu ltip le xed remot e maste r stat ion Mu ltip le xed remot e sub-m aster stat ion SEND Data send SEND: W rites data to the t arget station (net work module) of the target network No.
6 - 20 6 - 20 MELSEC-Q 6 PROGRAMMING In stru cti on Name Executi on stati on Descr iptio n Target stat ion Refer ence sect ion Process CPU Redundant CPU 2 Mult ip lexed remote master station Mu ltip l.
6 - 21 6 - 21 MELSEC-Q 6 PROGRAMMING In stru cti on Name Executi on stati on Descr iptio n Target stat ion Refer ence sect ion Process CPU Redundant CPU 2 Mult ip lexed remote master station Mu ltip l.
6 - 22 6 - 22 MELSEC-Q 6 PROGRAMMING REMARKS If the S READ or SW RITE ins truction is err oneous ly exe cuted t o a rem ote I/O statio n, the not ificat ion de vice to the tar get sta tion is ign ored an d it is proces sed in the s ame manner as th e READ or WRIT E instr uction .
6 - 23 6 - 23 MELSEC-Q 6 PROGRAMMING 6.6 Using the Li nk Special Relay s (SB)/ Link Special Registers ( SW) The da ta link ing i nform ation is stor ed in the li nk spec ial r ela y s (S B)/l ink spec ial regist ers (SW).
6 - 24 6 - 24 MELSEC-Q 6 PROGRAMMING (Cycli c transmissio n resta rt) 8) In t he fol lowin g link specia l reg ister (SW ) , specif y a stat ion for r est arting cycli c transmissi on • Spec ific ation of targ et sta tio n Link stop/star tup d irection c onten t (SW 0000) • Specific atio n of stat ion No.
6 - 25 6 - 25 MELSEC-Q 6 PROGRAMMING (b) Cyclic transmissi on stop/restart of the host (Cycli c tran smission stop) 1) T urn Link stop ( host) ( SB00 01) ON. 2) W hen the netw ork module a ccepts a re quest, Cyclic tra nsm ission stop ack nowledgm ent st atus (h ost) ( SB004 E) is turned ON.
6 - 26 6 - 26 MELSEC-Q 6 PROGRAMMING (2) Checking data link The da ta link status is ch ecked throu gh the GX Deve loper n etwork diag nostics , but it also c an be c heck ed with link specia l rel ay (SB) and link s pecial r egist er (SW ). (Refer to Sect ions 8.
6 - 27 6 - 27 MELSEC-Q 6 PROGRAMMING (b) Checking data link status of the host 1) Li nk sc an tim e etc., ca n be c hecked in SW 005A to SW00 5B and SW 006B to SW 006D. 2) If an err or occ urs to data l ink, eit her of the fo llowin g link specia l rel ays (SB ) wi ll b e tur ned ON.
6 - 28 6 - 28 MELSEC-Q 6 PROGRAMMING (3) Checking transient transmi ssion error s Trans ient transm issio n error s are check ed throu gh the GX Deve loper network diagnos tics, but the y also c an b e check ed wit h link spec ial re lays ( SB) and link speci al reg isters ( SW ).
6 - 29 6 - 29 MELSEC-Q 6 PROGRAMMING (4) Checking cables for faults The c able co nditio n can be c hecked n ot onl y in t he net work diagnost ics of GX Develo per b ut als o with l ink spec ial re lays (SB) and link spec ial re gisters (SW ). (Refer to Section 8.
6 - 30 6 - 30 MELSEC-Q 6 PROGRAMMING (5) Checking the forward/rev erse loop in the opti cal l oop system The f orward/ revers e loop in the optic al lo op syst em c an be chec ked not on ly in the net work diagnos tics of GX De velop er but also wi th link speci al rel ays (S B) and li nk s pecial re gister s (S W ).
6 - 31 6 - 31 MELSEC-Q 6 PROGRAMMING (b) Checking the forw ard/reverse loop of the host 1) W hen an error occ urs on the for ward or re verse loo p, Host lo op status (SB0090 ) turns ON. 2) If loop back oc curs, th e caus e of t he loo pback is stor ed in L oop sw itch data ( SW 00D0 to SW 00DF).
6 - 32 6 - 32 MELSEC-Q 6 PROGRAMMING (6) Checking the offline test status The tes t status is c heck ed through the L EDs on the ne twork module , but it also can be check ed with link s pecial rela ys (SB) a nd li nk spec ial reg isters ( SW) . (Refer to Section 4.
6 - 33 6 - 33 MELSEC-Q 6 PROGRAMMING (7) Checking the online test status The tes t sta tus is c heck ed throu gh LED of the netw ork m odule m ain fr ame, b ut it also c an be c heck ed with link specia l rela y (SB) and l ink spec ial r egist er (SW ).
6 - 34 6 - 34 MELSEC-Q 6 PROGRAMMING (8) Checking parameter status The ref lection status and se tting c onte nts of par am eters c an be chec ked with link speci al rel ay (S B) and link specia l reg ister ( SW ).
6 - 35 6 - 35 MELSEC-Q 6 PROGRAMMING (b) Checking the paramete r status of the host (incl uding the switch setting on the n etwork modul e) 1) Upon completion of receiving para meters, Parameter receive statu s (SB00 54) is turned O FF. 2) If an y error is found in th e param eters, the fol lowin g link spec ial rel ays (SB) are tur ned O N.
6 - 36 6 - 36 MELSEC-Q 6 PROGRAMMING (9) Checking the remote master station's CPU module and remo te I/O station statuses (Err or detection of remote I/O stations) The stat us check can be perf ormed not on ly with the ne twork diag nostics in GX Develo per b ut als o with l ink spec ial re lays (SB) and link spec ial re gisters (SW ).
6 - 37 6 - 37 MELSEC-Q 6 PROGRAMMING (b) Checking the remote master station's CPU module status 1) W hether the CP U modu le is i n the RU N or ST OP sta tus c an be check ed in C PU RUN s tatus of the rem ote m aster s tation ( SB008 5).
6 - 38 6 - 38 MELSEC-Q 6 PROGRAMMING (11) Operation status check and operati on swi tching of the multipl exed remote master function The op eration of the multi plexed rem ote mas ter func tion ca n be c hecked or switc hed wit h link spec ial re lays ( SB) and link spec ial re gister s (SW ).
6 - 39 6 - 39 MELSEC-Q 6 PROGRAMMING (c) Checki ng device rang es of the multiplex ed remote master and sub-master stations 1) W hen Send LY/R ecei ve LX devic e numbers of the multi plexed rem ote mas ter and su b-m aster sta tions ( SW 01C8 to SW 01CF) bec ome valid, Send/ receiv e devi ce number va lid/ invali d statu s (SB01C8 ) is tu rned ON.
6 - 40 6 - 40 MELSEC-Q 6 PROGRAMMING (13) Setting a link dedicated instr uction and checking the pr ocessing result W ith link special rela ys (SB) and link s pecia l regis ters ( SW ), link de dicat ed instr uctio ns can be set an d the proc essing r esults c an be check ed.
6 - 41 6 - 41 MELSEC-Q 6 PROGRAMMING (14) Checking the communication status betw een the netw ork module and the CPU mo dule The c omm unication s tatus bet ween the networ k m odule and the CPU m odule can be check ed with the l ink spec ial r ela y (SB) and the link special r egist er (SW ).
7 - 1 7 - 1 MELSEC-Q 7 APPLICATION FUNCTIONS 7 APPLICATION FUNCTIONS W hen appl ying the pr ogram exam ples i ntroduc ed in th is c hapter t o the ac tual s yste m, mak e sure to exam ine the applic abili ty and conf irm that it wil l not ca use s ystem control probl ems.
7 - 2 7 - 2 MELSEC-Q 7 APPLICATION FUNCTIONS 7.1 Transient Transmi ssi on Function (Non- Periodical C ommunication) The tra nsien t transm issio n funct ion perf orm s data com m unicatio n onl y when it is reques ted bet ween stat ions.
7 - 3 7 - 3 MELSEC-Q 7 APPLICATION FUNCTIONS 7.1.1 Link dedicated i nstruction (1) Reading/writing remote I/O stati on intelligent function module buffer mem ory (Z(P).REM FR/ Z(P ).REMT O) This sectio n desc ribes the REMF R/REMT O ins truct ion for mat.
7 - 4 7 - 4 MELSEC-Q 7 APPLICATION FUNCTIONS 2) Z(P) .REMT O (Networ k No. design ation) Z.REM TO Z: Execu ted when on Write comman d ZP.RE MTO ZP: Exe cute d wh en ris ing Write comm and "Jn&quo.
7 - 5 7 - 5 MELSEC-Q 7 APPLICATION FUNCTIONS (b) Instr ucti on exec utio n tim ing 1) Norm al c omplet ion (REMFR instru ction) Sequ ence sc an 0E N D 0E N D 0 END 0E N D Read comman d Read complet io.
7 - 6 7 - 6 MELSEC-Q 7 APPLICATION FUNCTIONS (REMTO inst ruction) Sequenc e scan 0E N D 0 END 0 END Writ e comman d Write co mplet ion devic e (Device design ated in (D2)) Write co mplet ion device ( .
7 - 7 7 - 7 MELSEC-Q 7 APPLICATION FUNCTIONS 2) Abnor mal com plet ion (REMFR instru ction) REMFR Error cod e Error occurrenc e Sequence scan Read command Re ad co mple ti on devi ce (D ev ice designa.
7 - 8 7 - 8 MELSEC-Q 7 APPLICATION FUNCTIONS (REMTO inst ruction) REMTO Error code Sequence scan Write comma nd Write complet ion device (Device designated in (D2)) Write comp letion device ((D2) + 1 .
7 - 9 7 - 9 MELSEC-Q 7 APPLICATION FUNCTIONS 7.2 Remote I/O Stati on Sy stem Monitor W ith the rem ote I/O n etwork , the i ntellige nt funct ion m odule m ounted t o a rem ote I/O statio n can be m onitore d on th e s y stem m onitor of G X De veloper .
7 - 1 0 7 - 1 0 MELSEC-Q 7 APPLICATION FUNCTIONS 7.3 Device Test for Remote I/O Station The rem ote I/ O networ k can use o peratio ns of GX Deve loper c onnec ted to the rem ote I/O st ation t o test the in put/outp ut dev ices of the s equen ce progr am with out af fectin g the onl ine s ystem .
7 - 1 1 7 - 1 1 MELSEC-Q 7 APPLICATION FUNCTIONS (2) The remote I/O module stops the X input from the input module At this tim e, the r emote I /O st ation is perf orm ing X/Y c omm unicati on with the rem ote mas ter stati on.
7 - 1 2 7 - 1 2 MELSEC-Q 7 APPLICATION FUNCTIONS 7.4 Multipl ex Transmission Function ( Optical Loop System) Mast er Rem ote The m ultipl ex transm iss ion funct ion al lows high-s peed com m unications usin g dup lex transm ission paths ( both the for ward an d rever se loo ps) in the optical loop s ystem .
7 - 1 3 7 - 1 3 MELSEC-Q 7 APPLICATION FUNCTIONS 7.5 Return Sequence S tation Number Setting Functi on Mast er Rem ote The rem ote I /O net c an se t the num ber of stat ions for whic h stat ions with communi cati on e rrors du ring on e link scan can per form re turn sequence .
7 - 1 4 7 - 1 4 MELSEC-Q 7 APPLICATION FUNCTIONS 7.7 Interrupt Setting s Mast er Rem ote The rem ote m aster st atio n uses the hos t int errupt s etting param eters t o chec k inter rupt condit ions at the t ime data is be ing rec eived f rom the re mote I/O s tatio n.
7 - 1 5 7 - 1 5 MELSEC-Q 7 APPLICATION FUNCTIONS 7.8 I/O Assignment Function Mast er Rem ote The I/O assi gnment funct ion is used f or the f ollowi ng: 1) Re servin g poin ts whe n changi ng to a mod.
7 - 1 6 7 - 1 6 MELSEC-Q 7 APPLICATION FUNCTIONS 7.9 Stopping/Restarting the Cyclic Transmission and Stopping Link Ref reshing (N etwork Test) The rem ote I /O networ k can use th e "net work tes t" of GX De velop er to st op and r estar t cyclic data.
7 - 1 7 7 - 1 7 MELSEC-Q 7 APPLICATION FUNCTIONS 7.10 Multiplex ed remote master function (Process C PU) The m ultiplex rem ote m aster f unction allows the m ultipl exed r emote s ub-m aster s tation to tak e contro l of th e rem ote I/O st ations when the m ultiplex ed rem ote m aster sta tion fai ls.
7 - 1 8 7 - 1 8 MELSEC-Q 7 APPLICATION FUNCTIONS The f ollowi ng des cribes each item. (1) Continuation of controlling remote I/O stations when multiplexed remote master stati on fails (a) By mount in.
7 - 1 9 7 - 1 9 MELSEC-Q 7 APPLICATION FUNCTIONS (d) The intel ligent f unctio n mod ules suc h as s erial com m unication m odul e, Ether net m odule wh ich ar e m ounted t o the rem ote I/O stat ions ca n acc ess the sta tion t hat is curre ntl y perform ing m aster oper atio n in t he MEL SEC comm unicat ion prot ocol.
7 - 2 0 7 - 2 0 MELSEC-Q 7 APPLICATION FUNCTIONS (f) Se lect t he m ultiplex ed r emote m aster s tat ion or m ult iplexed r em ote sub- mas ter stat ion from "Net work type" on the "Mo dule c ount s etting screen " of the GX Deve loper par am eters.
7 - 2 1 7 - 2 1 MELSEC-Q 7 APPLICATION FUNCTIONS (2) Selection of operating station status w hen multi plexed remote master station returns to system It is p ossibl e to s et the param eter of th e mu.
7 - 2 2 7 - 2 2 MELSEC-Q 7 APPLICATION FUNCTIONS (b) Return to system as sta ndby s tatio n: The m ultiplex ed rem ote m aster st atio n retur ns to the syst em as th e sub- mas ter operat ing s tation (s tandb y stat ion). The m ultiplex ed r emote su b-m aster s tation c ontin ues th e contro l of th e rem ote I/O sta tions.
7 - 2 3 7 - 2 3 MELSEC-Q 7 APPLICATION FUNCTIONS (c) Switch ing of multi plexe d rem ote m aster s tation opera tion W hen the mult iplex ed rem ote m aster st atio n has re turned t o s y stem , it ca n be switc hed to mas ter oper ation in th e follo wing proc edur e.
7 - 2 4 7 - 2 4 MELSEC-Q 7 APPLICATION FUNCTIONS The l ink spec ial r ela ys used to switc h m ultipl exed rem ot e sub-m aster station oper ation Number Nam e Desc ription SB0014 Remote s ub-master s.
7 - 2 5 7 - 2 5 MELSEC-Q 7 APPLICATION FUNCTIONS (3) Startup of a multipl exed remote sub-m aster station only (a) B y settin g the s ame par am eters as the m ultiplex ed rem ote m aster st ation, th.
7 - 2 6 7 - 2 6 MELSEC-Q 7 APPLICATION FUNCTIONS (4) Communication among multipl exed remote ma ster station, multiplexed remote sub- master station and re mote I/O stations (a) The input ( X) da ta o.
7 - 2 7 7 - 2 7 MELSEC-Q 7 APPLICATION FUNCTIONS • LB/LW data f low be twee n stat ions 0 1FFF LB/LW M R R M 0 1FF F LB/LW 0 1FFF LB/LW (a) (b) 0 1FFF LB/ LW (a) 0 1FF F LB/ LW 0 1FFF LB/LW Multiple.
7 - 2 8 7 - 2 8 MELSEC-Q 7 APPLICATION FUNCTIONS (6) Program exampl e to transfer data betw een a mul tiplex ed remote master station and a multipl exed remote sub-master stati on The f ollowing progr.
7 - 2 9 7 - 2 9 MELSEC-Q 7 APPLICATION FUNCTIONS (d) Link spec ial re lay a nd link spec ial reg isters used t o mak e the pr ogram s iden tical The f ollowi ng link spec ial re lay a nd link spec ial.
7 - 3 0 7 - 3 0 MELSEC-Q 7 APPLICATION FUNCTIONS (e) Program exam ple: For multi plexe d remote mas ter stat ion Host ba ton pass status Host data link status Modul e status R sub-master cyclic transmission Relative address valid/ invalid SB0075 for multi R sub-master Send LB de vi ce N o.
7 - 3 1 7 - 3 1 MELSEC-Q 7 APPLICATION FUNCTIONS R master cyclic trans con tr ol Station 2 baton path status Station 2 cyclic transmission Continuation processing program used when m ultiplexed remote master station fails Program for communication with remote I/O station No.
7 - 3 2 7 - 3 2 MELSEC-Q 7 APPLICATION FUNCTIONS 7.11 Multipl exed remote master function for th e redundant sy stem (Redundant C PU) The red unda nt syst em us es the m ultip lexed rem ote mas ter funct ion to contro l I/O modules and inte lligent function m odules .
7 - 3 3 7 - 3 3 MELSEC-Q 7 APPLICATION FUNCTIONS (2) Station No. settings For t he master m odule m ounted on the st atio n (mult iple xed rem ote m aster statio n) to which the s y stem A c onnect or of tr acking cab le is c onnect ed, set t he stat ion No.
7 - 3 4 7 - 3 4 MELSEC-Q 7 APPLICATION FUNCTIONS 7.11.1 Backup function of master operation on sy stem switching between control system and standby sy stem (a) T he redun dant s ystem consis ts of a c.
7 - 3 5 7 - 3 5 MELSEC-Q 7 APPLICATION FUNCTIONS (d) T he output of th e rem ote I/ O statio n is held while m aster o perat ion is switc hed fr om the m ulti plexed r em ote mas ter stat ion t o the m ultiplex ed remote sub -master sta tion.
7 - 3 6 7 - 3 6 MELSEC-Q 7 APPLICATION FUNCTIONS 7.11.3 System sw itching request function of contr ol system The c ontrol s ystem incl udes th e system switc hing r eque st funct ion, i.
7 - 3 7 7 - 3 7 MELSEC-Q 7 APPLICATION FUNCTIONS POINT The f ollowing mus t be perf orm ed before opera ting t he syst em • Power ing ON/O FF of other s tations (incl uding th ose o n the s tandb y .
7 - 3 8 7 - 3 8 MELSEC-Q 7 APPLICATION FUNCTIONS The m aster m odule issues a s ystem s witchi ng requ est whe n the s tatus of dat a link is change d from "und er data link " to "data link halted" (when the D.L INK LE D of the mas ter m odule tur ns of f).
7 - 3 9 7 - 3 9 MELSEC-Q 7 APPLICATION FUNCTIONS 7.11.4 Access function by specif ying the control system or standby system This fu nc tion is for maki ng acce ss to the Re dundan t sy stem by speci fying the cont rol system or st andb y system usin g GX D evelo per or other methods.
7 - 4 0 7 - 4 0 MELSEC-Q 7 APPLICATION FUNCTIONS 7.12 Remote passw ord The rem ote pas sword f unct ion is the f unction f or pre venti ng a rem ote us er from illeg ally co nnectin g to a r emote I/O m odule an d progr amm able co ntroll er CPU.
7 - 4 1 7 - 4 1 MELSEC-Q 7 APPLICATION FUNCTIONS (2) Unlocking and locking the remote passw ord The rem ote passwor d is un lock ed (con nection is a llowed) via t he m odem b y the serial c omm unicat ion m odule or via Etherne t b y the Et hernet m odu le.
7 - 4 2 7 - 4 2 MELSEC-Q 7 APPLICATION FUNCTIONS (4) Setting procedure of re mote passwor d "GX D eve loper " "R emote pass" "Rem ote pass word settings " scree n "R.
7 - 4 3 7 - 4 3 MELSEC-Q 7 APPLICATION FUNCTIONS (5) Error codes detected by remote I/O module Error code Error message LED status Description Measures 3400 REMOTE PASS. ERR. ERR. LED: on The head I/O number of the target module in the remote passw ord file is set to other than 0 H to 0FF0 H .
7 - 4 4 7 - 4 4 MELSEC-Q 7 APPLICATION FUNCTIONS MEM O.
8 - 1 8 - 1 MELSEC-Q 8 TROUBLESHOOTING 8 TROUBLESHOOTING In order to ensure hi gh syst em reliab ilit y , it is im porta nt to take prec autio ns before t he syst em is ope rated an d to qu ickly and effe ctiv ely co rrect p roble ms if th ey do o ccur.
8 - 2 8 - 2 MELSEC-Q 8 TROUBLESHOOTING 8.1 Networ k Diagnostics (Netw ork Monitor) The s tatus of the rem ote I/O net work c an be chec ked using the net work di agnostic functi on of GX Dev el op e r .
8 - 3 8 - 3 MELSEC-Q 8 TROUBLESHOOTING ………… ……………… Se ction 7. 9 Erro r hist ory det ails Error hi story moni tor Network test ……………… ………… …Se ct i o n 4 . 1 0. 4 ……………… …………… ……S ection 4 .
8 - 4 8 - 4 MELSEC-Q 8 TROUBLESHOOTING POINT (1) T he targe t of t he net work di agnost ics is t he hos t's net work design ated as t he connec tion dest inati on.
8 - 5 8 - 5 MELSEC-Q 8 TROUBLESHOOTING 8.1.1 Host information The i nform ation of t he ent ire ne twork and the s tatus of th e host st ation c an b e check ed. 2) 3) 4) 1) 5) 6) 7) 9) 8) [Network info.] 1) Net work type (SB0040, SB004 4, SB0057, SW 0046) The ne twork used an d the t ype of the host stati on are displ ayed.
8 - 6 8 - 6 MELSEC-Q 8 TROUBLESHOOTING [Link inform ation ] 5) Mode ( SW 0043) The op eration m ode of th e host station is d ispla yed. • Online • Offl ine • Forwar d lo op test • Reverse loo.
8 - 7 8 - 7 MELSEC-Q 8 TROUBLESHOOTING 8.1.2 Other station in formation The stat us of comm unicat ions, data l ink, param eters, C PU modul es, and lo ops of other statio ns (inc ludi ng reser ved s tations ) can b e chec ked.
8 - 8 8 - 8 MELSEC-Q 8 TROUBLESHOOTING 2) Data-Link status of eac h st ation ( SW0074 to SW 0077) The cy clic tran smission st atus i s display ed. • Light blue : Norm al st ation or reser ved s tat.
8 - 9 8 - 9 MELSEC-Q 8 TROUBLESHOOTING 8.1.3 Networ k monitor details The rem ote master statio n inform ation, dat a link inform ation, an d param eter status of the hos t stat ion c an be c heck ed. 5) 1) 2) 3) 4) 6) 7) 8) 9) 10) 12) 14) 13) 15) Displayed as shown b elow when diagnosis is executed from the remote I/O stat ion.
8 - 1 0 8 - 1 0 MELSEC-Q 8 TROUBLESHOOTING [Data Link Inform ation] 5) T otal Number of Linked St ations The num ber of stati ons (th e total num ber of l ink s tations set in network param eter f or the r emote m aster s tati on + 1 (r em ote mast er stat ion)) is displ ayed.
8 - 1 1 8 - 1 1 MELSEC-Q 8 TROUBLESHOOTING 10) Reas on for Transm ission Stop ( SW 0049) The c ause of t he d ata li nk (c yclic tr ansm ission) f ailur e of the hos t stat ion is displ ayed.
8 - 1 2 8 - 1 2 MELSEC-Q 8 TROUBLESHOOTING 8.1.4 Error hi story moni tor The h istor y of for ward/rev erse l oop err ors, c omm unication errors, and tr ansien t transm ission errors c an be check ed. The d etails of th e err or histor y can b e dis pla yed and th e er ror histo ry can be clea red.
8 - 1 3 8 - 1 3 MELSEC-Q 8 TROUBLESHOOTING 5) UNDER (SW 00B8, S W 00C0) The num ber of UNDER er ror s is disp layed. <Error Cause > Suc h as p ower- ON/OFF of the adjacen t stat ion an d a cable err or <Cor rectiv e A ction> Refe r to th e foll owing P OINT.
8 - 1 4 8 - 1 4 MELSEC-Q 8 TROUBLESHOOTING (2) Error history detai l monitori ng The c ause of loop s witch ing an d his tor y of the trans ient transm ission error are displ ayed. 4) 1) 2 ) 3) [Loo p swit ching ] 1) St atio n No. (SW 00E0 to 00 E7) The s tation number which request ed loo p switc hing or loo pback is d ispla yed.
8 - 1 5 8 - 1 5 MELSEC-Q 8 TROUBLESHOOTING 8.2 Troubleshooti ng Check the pro gramm able c ontroll er CPU for an error before s tart ing the troubl eshooti ng of t he net work m odule an d networ k. If the RU N LED of the progr amm able contr oller C PU is off /flick ering or t he ERR.
8 - 1 6 8 - 1 6 MELSEC-Q 8 TROUBLESHOOTING (b) For the rem ote I/O module POINT If th e statu s of the "T. PASS" LED is un stabl e, refe r to the fo llowi ng. <Caus e> The l ine stat us m ay be uns table . <Trou blesh ooting> 1) Check the conn ector f or lo ose co nnecti on and the cab le for a break .
8 - 1 7 8 - 1 7 MELSEC-Q 8 TROUBLESHOOTING (2) From monitori ng the netw ork status to troubleshooting of a faulty station The f ollowing flowc hart il lustr ates the proce dure for mon itoring the stat us of t he entire netw ork, de tecting a f aulty st ation, and th en per form ing troub leshoot ing f or the ap plica ble sta tion.
8 - 1 8 8 - 1 8 MELSEC-Q 8 TROUBLESHOOTING.
8 - 1 9 8 - 1 9 MELSEC-Q 8 TROUBLESHOOTING C No Value of S W0047 Value 3: No host send area Value 4: Abnormal pa rameters d etected Value 5: Parameters not received <Corr ecti ve ac tion > Check the cont ents of the common parameters and sta tio n inh erent paramete rs.
8 - 2 0 8 - 2 0 MELSEC-Q 8 TROUBLESHOOTING <Cause 1> M/S er ror or SW er ror is assumed. <Corrective action 1> <Cause 2> Programmable controller CPU or remote I/O station error is as sumed.
8 - 2 1 8 - 2 1 MELSEC-Q 8 TROUBLESHOOTING 8.2.1 Items checked firs t Check it em Checking proc edure Monitor the tra nsmis sion status of each station with GX Develope r 's network diagnostic s.
8 - 2 2 8 - 2 2 MELSEC-Q 8 TROUBLESHOOTING 8.2.3 Items checked w hen data link is di sabled by r esetting or powering off a station Check it em Checking proc edure Is the cabl e wired properly? Check t he wiring status with G X Developer' s network diagnos tic loop t est.
8 - 2 3 8 - 2 3 MELSEC-Q 8 TROUBLESHOOTING 8.2.5 Items checked w hen an commu nication data er ror is detected (1) Cyclic transmission Check it em Checking proc edure Is the sequenc e program c orrect.
8 - 2 4 8 - 2 4 MELSEC-Q 8 TROUBLESHOOTING 8.2.7 Items checked w hen multiplex ed remote I/O network for redundant system does not operate normall y (1) Redundant CPU does not per form system switchi ng even when the data link cable is di sconnected.
8 - 2 5 8 - 2 5 MELSEC-Q 8 TROUBLESHOOTING 8.2.9 Checking i ncorrect optical fiber cabl e connection duri ng online This sectio n exp lains th e chec king pr oced ure for incorr ect o ptical f iber c able connec tion (I N-IN, O UT-OU T) during on line and the link s pecial r egist ers (SW 009C to SW 009F) use d for th e chec k.
8 - 2 6 8 - 2 6 MELSEC-Q 8 TROUBLESHOOTING (1) Checking procedure Follow the pr ocedur e gi ven be low to c heck for inc orrect optica l fiber cabl e connec tion (I N-IN, OUT -OU T) dur ing on line.
8 - 2 7 8 - 2 7 MELSEC-Q 8 TROUBLESHOOTING (2) Example of checking SW009C to S W 009F (a) W hen cables are con nected incorrectly at a remote I/O station (Station No.2) 1) Wiring diagram Stati on No. 0 Stati on No. 1 Stat ion No. 2 Sta tion No. 3 Stati on No.
8 - 2 8 8 - 2 8 MELSEC-Q 8 TROUBLESHOOTING 8.3 Error C odes W hen a troub le suc h as d ata link fail ure has occurr ed, t he error caus e can be ident ified by usin g an error code. 8.3.1 How to check er ror codes To c heck err or codes for a ll net work m odules, f ollo w either proc edure ( 1) or ( 2) descr ibed in this sec tion.
8 - 2 9 8 - 2 9 MELSEC-Q 8 TROUBLESHOOTING 3) F or the r emote m aster s tatio n, chec k the er ror c ode, err or his tor y, descr iption , and correctiv e acti on on the "Modul e's Detail ed Inform ation" scree n.
8 - 3 0 8 - 3 0 MELSEC-Q 8 TROUBLESHOOTING (2) Checking with GX W orks2 The err or cod es corr espon ding to the err ors t hat ha ve occ urred in n etwork modules can be chec ked b y follo wing e ither pr ocedur e (a) or (b) des crib ed below.
8 - 3 1 8 - 3 1 MELSEC-Q 8 TROUBLESHOOTING (b) Check ing on the "Er ror Histor y" screen 1 (remot e master st ation on ly) On this scr een, er rors inc lud ing thos e tha t have occurr ed in other mod ules are dis played, and the data c an be output in a CSV file .
8 - 3 2 8 - 3 2 MELSEC-Q 8 TROUBLESHOOTING 2) Err or and Sol ution, In tellige nt Modu le Infor matio n • Error and Solution The err or d etail an d corr ective ac tion f or the error c urre ntly se lected under " Error His tor y List" are displ ayed.
8 - 3 3 8 - 3 3 MELSEC-Q 8 TROUBLESHOOTING (3) Checking error codes wi th devices To m onitor th e error code f rom an Ethern et mod ule an d so on using the M ELSEC comm unicat ion prot ocol, c heck the l ink spec ial r egister be low.
8 - 3 4 8 - 3 4 MELSEC-Q 8 TROUBLESHOOTING 8.3.2 MELSECNET/H error code list Table 8.1 Err or code list Error code Descript ion Correct ive action 4000 to 4FFF (Error detec ted by the program mable controll er CPU) Take measures referring to t he QCPU User's Manual (Hardware Desi gn, Maintenanc e and Inspect ion).
8 - 3 5 8 - 3 5 MELSEC-Q 8 TROUBLESHOOTING Table 8.1 Err or code list (C ontinued) Error code Descript ion Correct ive action F111 Correspondi ng station err or (Baton pass to the corresponding s tati.
8 - 3 6 8 - 3 6 MELSEC-Q 8 TROUBLESHOOTING Table 8.1 Err or code list (C ontinued) Error code Descript ion Correct ive action F11F I nitial st atus (no baton addressed t o host) Check f or the operati.
8 - 3 7 8 - 3 7 MELSEC-Q 8 TROUBLESHOOTING Table 8.1 Err or code list (C ontinued) Error code Descript ion Correct ive action F70B Response wait tim eout W ait until SB0047 (baton pas s status) and S B0049 (data link status ) are recovered. F70C Syst em error The c able is faul ty, or the hardware of the network modul e is fault y.
8 - 3 8 8 - 3 8 MELSEC-Q 8 TROUBLESHOOTING Table 8.1 Err or code list (C ontinued) Error code Descript ion Correct ive action F7CD Sys tem error The hardware of the net work module is faulty. Please c onsult your loc al Mitsubis hi representative. F7E1 Control dat a error Confirm the s et values (mode, etc.
8 - 3 9 8 - 3 9 MELSEC-Q 8 TROUBLESHOOTING Table 8.1 Err or code list (C ontinued) Error code Descript ion Correct ive action F820 Link param eter error Replace the net work module of the normal st ation with the one com patible with the MELSECNE T/H Extended m ode.
8 - 4 0 8 - 4 0 MELSEC-Q 8 TROUBLESHOOTING Table 8.1 Err or code list (C ontinued) Error code Descript ion Correct ive action F83B Forced switc hing impos sible error Check if the following condit ions are m et: The sy ste m is a mu ltiplex ed re mote I/O netw or k syste m.
8 - 4 1 8 - 4 1 MELSEC-Q 8 TROUBLESHOOTING Table 8.1 Err or code list (C ontinued) Error code Descript ion Correct ive action FD1C I nterruption e rror due to loop s witching during test There is no need to t ake correct ive measures because the syst em retries the operation (do not switch the l oop in the m iddle of the operation).
8 - 4 2 8 - 4 2 MELSEC-Q 8 TROUBLESHOOTING Table 8.1 Err or code list (C ontinued) Error code Descript ion Correct ive action FE25 System error Confirm the power supply st atus (ins uffici ent voltage, inst antaneous interrupti on, overvol tage, etc. ) of the target station f or transient t ransmissi on and the rela y station.
8 - 4 3 8 - 4 3 MELSEC-Q 8 TROUBLESHOOTING 8.3.3 Error codes detec ted on remo te I/O stations and eq uiv alent to CPU modul e error codes The rem ote I/ O stat ion perf orm s som e of the s ame pr ocess es as th e CPU m odule . Accord ingl y, the rem ote I/O stat ion det ects the sam e error codes 1 2 as in the CP U m odule.
8 - 44 8 - 44 MELSEC-Q 8 TROUBLESHOOTING (1) Error code li st The f ollowing table lists t he err or codes , err or mes sages, er ror caus es, and corrective action s.
8 - 45 8 - 45 MELSEC-Q 8 TROUBLESHOOTING Error code (SD0) Error content s and cause Correct ive action LED st atus, Remote I/O operatio n status 1401 [SP .UNIT DOW N] • There was no respo nse from the intelligent f unction module i n the initial proc essing.
8 - 46 8 - 46 MELSEC-Q 8 TROUBLESHOOTING Error code (SD0) Error content s and cause Correct ive action LED st atus, Remote I/O operatio n status 1510 [SINGLE P S. DO W N] The power suppl y voltage of ei ther of redunda nt power supply m odules on the redundant base unit dropped.
8 - 47 8 - 47 MELSEC-Q 8 TROUBLESHOOTING Error code (SD0) Error content s and cause Correct ive action LED st atus, Remote I/O operatio n status 2100 [SP .
8 - 48 8 - 48 MELSEC-Q 8 TROUBLESHOOTING Error code (SD0) Error content s and cause Correct ive action LED st atus, Remote I/O operatio n status 2107 [SP.UNIT L AY ER R.] The start X/Y s et in the PLC param eter's I/ O assignm ent settings is overlapped with t he one for another m odule.
8 - 49 8 - 49 MELSEC-Q 8 TROUBLESHOOTING Error code (SD0) Error content s and cause Correct ive action LED st atus, Remote I/O operatio n status 3000 [PARAMETER ERROR ] • The PLC paramet er setti ng for "Points oc cupied by empt y slot" is outsi de the range for the rem ote I/O module.
8 - 50 8 - 50 MELSEC-Q 8 TROUBLESHOOTING Error code (SD0) Error content s and cause Correct ive action LED st atus, Remote I/O operatio n status 3105 [LINK PAR A. ER ROR ] • Although one or m ore CC-Link modules were configured i n the Network Parameter dialog bo x, no CC-Link m odule is mount ed in the system.
8 - 51 8 - 51 MELSEC-Q 8 TROUBLESHOOTING Error code (SD0) Error content s and cause Correct ive action LED st atus, Remote I/O operatio n status 3301 [SP. PARA . ERRO R] The intelli gent functi on module's refresh parameter sett ing is outside t he available rang e.
8 - 52 8 - 52 MELSEC-Q 8 TROUBLESHOOTING 8.4 Canceling a Mi nor Error ( Continue Er ror) on a Remote I/O Sta tion An err or of a rem ote I/O m odule can be c ance led if it is a type of error s th at allo ws the module oper ation t o cont inue, as in th e cas e of CP U modu les.
8 - 53 8 - 53 MELSEC-Q 8 TROUBLESHOOTING 8.4.1 Canceling a specific remote I/O station error This sectio n exp lains ho w to c ancel an err or of a specif ic rem ote I /O stat ion by manipu latin g the r emote m aster s tatio n and t he rem ote I/O station .
8 - 54 8 - 54 MELSEC-Q 8 TROUBLESHOOTING 8.4.2 Canceling errors of all remote I/O stations This sectio n exp lains ho w to m anipul ate t he rem ote mas ter st ation t o cance l error s of all r emote I /O st ations . POINT (1) F or canc eling er rors of al l rem ote I/O st ations, use a m as ter modu le a nd rem ote I/O m odules whose s erial No .
8 - 55 8 - 55 MELSEC-Q 8 TROUBLESHOOTING (2) Precautions for error cancell ation (a) SB000F after e rror can cellation Alwa ys turn OFF SB0 00F af ter cance ling an error . Even if a m inor err or (co ntinue error) occurs on a r emote I/O stati on whil e SB000F is ON, the err or will not be de tected .
8 - 56 8 - 56 MELSEC-Q 8 TROUBLESHOOTING (3) Sample programs (a) For a remote I/O n etwork Oper ati on for err or canc ellat ion Turns OFF SB000F after confirmi ng error canc ellation . Cancels Blown fuse er ror. Cancels I/O mo dule verificatio n error.
8 - 57 8 - 57 MELSEC-Q 8 TROUBLESHOOTING (b) For a m ultiplex ed rem ote I/ O net work The f ollowi ng is a progr am exam ple us ed in comm on to r emote m aster and rem ote sub-m aster s tations. W rite it to both rem ote m aster a nd rem ote sub-m aster stat ions.
8 - 58 8 - 58 MELSEC-Q 8 TROUBLESHOOTING (c) For a m ultiplex ed re mote I /O net work that sup ports r edun dant s ystem s Operatio n for error cancel lation Turns OFF SB000F after confir ming er ror can cella tion. Cancels B lown fu se erro r of control system CPU.
8 - 59 8 - 59 MELSEC-Q 8 TROUBLESHOOTING 8.5 Procedure for Replacin g a N ormally Operating Redundant Pow er Suppl y Module This sectio n exp lains th e proced ure f or repl acing a redu ndant p ower s uppl y modu le that is nor mally ope ratin g. The repl acem ent is avail able on a rem ote I/O stati on witho ut SINGL E PS.
8 - 60 8 - 60 MELSEC-Q 8 TROUBLESHOOTING 8.6 H/ W Informat ion H/ W in for mation screen di splay s detail s of the LED and sw itch in format ion o f the network m odules. T o displ ay th e H/W inform ation sc ree n, click the H/W inf ormatio n butto n on the system monit or window of GX Devel oper.
8 - 61 8 - 61 MELSEC-Q 8 TROUBLESHOOTING (2) H/W switch informati on The fo llowin g tabl es list the swi tch setti ng da ta for the mast er modu le. 2)-a: T he s witch set tings f or the hardwar e m ounted to the m aster m odule Item D escriptio n STx10 10 pos ition of s tation number s etting switch.
App - 1 App - 1 MELSEC-Q APPENDICES APPENDICES Appendix 1 Pr ecautions for Replacing MELSECN ET/10 Remote I/O N etwork with MELSECNET/H Remote I/O Networ k This section des cribes the precauti ons for repl acing M ELSECNET /10 rem ote I/O network for the AnUCPU and Qn ACPU with MELSEC NET/H rem ote I/O net work for the QCPU.
App - 2 App - 2 MELSEC-Q APPENDICES (5) Correcting the seq uence progr am There is no need to cha nge sequenc e pro grams such as the interl ock program that used li nk spec ial re lays an d link speci al res istors and t he rem ote acc ess program that us ed d ata link com mands.
App - 3 App - 3 MELSEC-Q APPENDICES Appendix 2 Li nk Special Rel ay (SB) The l ink spec ial r ela y (SB) t urns on/ off by var ious fac tors th at occ ur dur ing dat a link ing. Thus , by mon itoring or usi ng it in the s eque nce pro gram , the abn ormal s tatus of th e data link can be chec ked.
App - 4 App - 4 MELSEC-Q APPENDICES (3) List of link special relay (SB) areas The f ollowi ng lists the link specia l rela y (SB) areas (SB 0000 to SB01F F). POINT (1) Do not tur n ON t he area whic h does not exis t in t he list . Doing s o m ay cause m alfu nctio n of th e progr amm able contr oller system .
App - 5 App - 5 MELSEC-Q APPENDICES Table 2 Link speci al relay (SB) list (C ontinued) No. Name Description Availabilit y Control stat ion Normal stat ion Remote maste r stat ion Remote I/O stat ion O.
App - 6 App - 6 MELSEC-Q APPENDICES Table 2 Link speci al relay (SB) list (C ontinued) No. Name Description Availabilit y Control stat ion Normal stat ion Remote maste r stat ion Remote I/O stat ion O.
App - 7 App - 7 MELSEC-Q APPENDICES Table 2 Link speci al relay (SB) list (C ontinued) No. Name Description Availabilit y Control stat ion Normal stat ion Remote maste r stat ion Remote I/O stat ion O.
App - 8 App - 8 MELSEC-Q APPENDICES Table 2 Link special relay (SB) list (Conti nued) No. Name Description Availabilit y Control stat ion Normal stat ion Remote maste r stat ion Remote I/O stat ion Op.
App - 9 App - 9 MELSEC-Q APPENDICES Table 2 Link special relay (SB) list (Conti nued) No. Name Descripti on Availabilit y Control stat ion Normal stat ion Remote maste r stat ion Remote I/O stat ion O.
App - 10 App - 10 MELSEC-Q APPENDICES Table 2 Link speci al relay (SB) list (C ontinued) No. Name Descripti on Availabilit y Control stat ion Normal stat ion Remote maste r stat ion Remote I/O stat io.
App - 11 App - 11 MELSEC-Q APPENDICES Table 2 Link speci al relay (SB) list (C ontinued) No. Name Descripti on Availabilit y Control stat ion Normal stat ion Remote maste r stat ion Remote I/O stat io.
App - 12 App - 12 MELSEC-Q APPENDICES Table 2 Link speci al relay (SB) list (C ontinued) No. Name Descriptio n Availabilit y Control stat ion Normal stat ion Remote maste r stat ion Remote I/O stat io.
App - 13 App - 13 MELSEC-Q APPENDICES Table 2 Link speci al relay (SB) list (C ontinued) No. Name Description Availabilit y Control stat ion Normal stat ion Remote maste r stat ion Remote I/O stat ion.
App - 14 App - 14 MELSEC-Q APPENDICES Appendix 3 Li nk Special Reg ister (SW) In th e link special regis ter ( SW ), the data linkin g infor matio n is st ored as num eric values . Thus , fault y areas and c auses of err ors ca n be c hecked us ing or moni toring the li nk spec ial re gisters in t he seq uence program s.
App - 15 App - 15 MELSEC-Q APPENDICES (3) List of link special register (S W ) areas The f ollowi ng lists the link s pecia l regis ter (SW ) ar eas (SW 0000 t o SW 01FF). POINT (1) Do not tur n ON t he area whic h does not exis t in t he list . Doing s o m ay cause m alfu nctio n of th e progr amm able contr oller system .
App - 16 App - 16 MELSEC-Q APPENDICES Table 3 Link special register ( SW ) li st (Continued) No. Name Descripti on Availabilit y Control stat ion Normal stat ion Remote maste r stat ion Remote I/O sta.
App - 17 App - 17 MELSEC-Q APPENDICES Table 3 Link special register ( SW ) li st (Continued) No. Name Des cription Availabilit y Control stat ion Normal stat ion Remote maste r stat ion Remote I/O sta.
App - 18 App - 18 MELSEC-Q APPENDICES Table 3 Link special register ( SW ) li st (Continued) No. Name Descripti on Availabilit y Control stat ion Normal stat ion Remote maste r stat ion Remote I/O sta.
App - 19 App - 19 MELSEC-Q APPENDICES Table 3 Link special register ( SW ) li st (Continued) No. Name Descripti on Availabilit y Control stat ion Normal stat ion Remote maste r stat ion Remote I/O sta.
App - 20 App - 20 MELSEC-Q APPENDICES Table 3 Link special register ( SW ) li st (Continued) No. Name Descripti on Availabilit y Control stat ion Normal stat ion Remote maste r stat ion Remote I/O stat ion Optic al Coaxial O ptical Coax ial Optical C oaxial Opt ical Co axial SW 0055 (85) Param eter se tting stat us At the PLC to PLC network.
App - 21 App - 21 MELSEC-Q APPENDICES Table 3 Link special register ( SW ) li st (Continued) No. Name Descripti on Availabilit y Control stat ion Normal stat ion Remote maste r stat ion Remote I/O sta.
App - 22 App - 22 MELSEC-Q APPENDICES Table 3 Link special register ( SW ) li st (Continued) No. Name Descripti on Availabilit y Control stat ion Normal stat ion Remote maste r stat ion Remote I/O sta.
App - 23 App - 23 MELSEC-Q APPENDICES Table 3 Link special register ( SW ) li st (Continued) No. Name Descripti on Availabilit y Control stat ion Normal stat ion Remote maste r stat ion Remote I/O sta.
App - 24 App - 24 MELSEC-Q APPENDICES Table 3 Link special register ( SW ) li st (Continued) No. Name Descripti on Availabilit y Control stat ion Normal stat ion Remote maste r stat ion Remote I/O sta.
App - 25 App - 25 MELSEC-Q APPENDICES Table 3 Link special register ( SW ) li st (Continued) No. Name Descripti on Availabilit y Control stat ion Normal stat ion Remote maste r stat ion Remote I/O sta.
App - 26 App - 26 MELSEC-Q APPENDICES Table 3 Link special register ( SW ) li st (Continued) No. Name Descripti on Availabilit y Control stat ion Normal stat ion Remote maste r stat ion Remote I/O sta.
App - 27 App - 27 MELSEC-Q APPENDICES Table 3 Link special register ( SW ) li st (Continued) No. Name Descripti on Availabilit y Control stat ion Normal stat ion Remote maste r stat ion Remote I/O sta.
App - 28 App - 28 MELSEC-Q APPENDICES Table 3 Link special register ( SW ) li st (Continued) No. Name Descripti on Availabilit y Control stat ion Normal stat ion Remote maste r stat ion Remote I/O sta.
App - 29 App - 29 MELSEC-Q APPENDICES Table 3 Link special register ( SW ) li st (Continued) No. Name Descripti on Availabilit y Control stat ion Normal stat ion Remote maste r stat ion Remote I/O sta.
App - 30 App - 30 MELSEC-Q APPENDICES Table 3 Link special register ( SW ) li st (Continued) No. Name Descripti on Availabilit y Control stat ion Normal stat ion Remote maste r stat ion Remote I/O sta.
App - 31 App - 31 MELSEC-Q APPENDICES Table 3 Link special register ( SW ) li st (Continued) No. Name Description Availabilit y Control stat ion Normal stat ion Remote maste r stat ion Remote I/O stat.
App - 32 App - 32 MELSEC-Q APPENDICES Table 3 Link special register ( SW ) li st (Continued) No. Name Description Availabilit y Control stat ion Normal stat ion Remote maste r stat ion Remote I/O stat.
App - 33 App - 33 MELSEC-Q APPENDICES Appendix 4 Speci al Relay (SM) for Remote I/O Stations The s pecial r ela y (SM) is an i nterna l rela y whose s pec ificati on is fixed in th e progr amm able con troller . For this r eason , the specia l re lay can not b e use d in th e sam e way as other i nternal rela ys used i n seq uence pr ogram s.
App - 34 App - 34 MELSEC-Q APPENDICES (1) Di agnos tic inf orm ation Specia l Relay List Number Name Meaning Explan ation Set by (W hen Set ) Corre spon ding ACPU M9 Corre spon ding CPU SM0 Dia gnostic errors OFF : No error ON : E rror • This re lay turns on if an erro r is detect ed by di agnosti cs.
App - 35 App - 35 MELSEC-Q APPENDICES (3) Scan information Specia l Relay List Number Name Meaning Explan ation Set by (W hen Set ) Corre spon ding ACPU M9 Corre spon ding CPU SM551 Re ads mo dule ser.
App - 36 App - 36 MELSEC-Q APPENDICES Appendix 5 Speci al Reg ister (SD) for Remote I/O Module The s pecial r egis ter ( SD) is an inter nal r egist er whos e applic atio n is f ixed in the progr amm able cont roller.
App - 37 App - 37 MELSEC-Q APPENDICES (1) Diag nostic inform ation Special Register Li st Numbe r Name Meaning Exp lana tion Set by (W hen set) Corre spon ding ACPU D9 Corre spon ding CPU SD0 D iagnos tic errors Diagn ostic err or code • This regi ster sto res th e error code of an erro r dete cted by diagn ost ics.
App - 38 App - 38 MELSEC-Q APPENDICES Special Reg ister List (Continued) Number Name Meanin g Explan ation Set by (W hen set) Cor res pondi ng ACPU D9 Cor res pondi ng CPU SD5 Erro r common information Erro r common information • This register stores common information corresponding to the error code stored in SD0.
App - 39 App - 39 MELSEC-Q APPENDICES 6: The extens ion nam es ar e liste d belo w. SDn SDn +1 Extension Fi le type Higher 8 bits Lower 8 bits Higher 8 bits 51 H 50 H 41 H QPA P arameters 51 H 50 H 47.
App - 40 App - 40 MELSEC-Q APPENDICES Special Reg ister List (Continued) Numbe r Name Meaning Explanat ion Set by (W hen set) Corre spon ding ACPU D9 Corre spon ding CPU SD5 Erro r common information .
App - 41 App - 41 MELSEC-Q APPENDICES Special Reg ister List (Continued) Numbe r Name Meaning Exp lana tion Set by (W hen set) Corre spon ding ACPU D9 Corre spon ding CPU SD16 Erro r indivi dual information Erro r indivi dual information • Thi s regis ter st ores indivi dual i nform ation corre spondi ng to the er ror code st ored i n SD0.
App - 42 App - 42 MELSEC-Q APPENDICES Special Reg ister List (Continued) Numbe r Name Meani ng Expla nat ion Set by (W hen set) Corre spon ding ACPU D9 Corre spon ding CPU SD50 Er ror reset Erro r code whe re the erro r reset is perf ormed • Thi s regis ter st ores the e rror c ode where t he er ror r eset is perf ormed .
App - 43 App - 43 MELSEC-Q APPENDICES (2) Sy stem information Special Register Li st Numbe r Name Meaning Explana tion Set by (W hen set) Corre spon ding ACPU D9 Corre spon ding CPU SD200 Stat us o f swi tch Status of CP U swi tch • This regis ter st ores t he stat us of t he re mote I/O mod ule swi tch in the fol lowin g bit pat tern.
App - 44 App - 44 MELSEC-Q APPENDICES Special Reg ister List (Continued) Numbe r Name Meaning Exp lanat ion Set by (W hen set) Corre spon ding ACPU D9 Corre spon ding CPU SD203 Op eratin g stat us o f CPU Operati ng stat us o f CPU • This regis ter st ores t he ope rating statu s of t he rem ote I/O modul e in the fo llow ing bit patte rn.
App - 45 App - 45 MELSEC-Q APPENDICES Special Reg ister List (Continued) Numbe r Name Meaning Explana tion Set by (W hen set) Corre spon ding ACPU D9 Corre spon ding CPU SD24 0 Base mode 0: Automat ic mode 1: Detai l mode • This registe r stor es t he bas e mode.
App - 46 App - 46 MELSEC-Q APPENDICES Special Reg ister List (Continued) Numbe r Name Meaning Explana tion Set by (W hen set) Corre spon ding ACPU D9 Corre spon ding CPU SD280 CC-Li nk er ror Erro r dete ction stat us 1 W hen Xn0 o f a m ount ed CC- Link m odule turns on, the corres pondin g bit is set to 1 ( on).
App - 47 App - 47 MELSEC-Q APPENDICES Special Reg ister List (Continued) Numbe r Name Meaning Exp lanat ion Set by (W hen set) Corre spon ding ACPU D9 Corre spon ding CPU SD340 Ethe rnet information No. of modules mounte d • Indicates th e number of mounte d Ether net mod ules.
App - 48 App - 48 MELSEC-Q APPENDICES (4) Fus e blow n m odu le Special Register Li st Numbe r Name Meaning Exp lanat ion Set by (W hen set) Corre spon ding ACPU D9 Corre spon ding CPU SD1300 Fuse bl .
App - 49 App - 49 MELSEC-Q APPENDICES (6) Redundan t pow er supply module info rmatio n The s pecial r egist er ( SD1780 t o SD17 89) is valid o nly fo r redun dant po wer suppl y syst ems . All bits are set to "0" for sing le po wer s uppl y system s.
App - 50 App - 50 MELSEC-Q APPENDICES Appendix 6 Ex ternal Dimensions (1) QJ71LP21-25 Unit: mm (in.) *1: Pleas e contact your neares t Mits ubishi El ectric Syst em & Service Co., Lt d. for detail s. (2) QJ71LP21G, QJ71LP21GE Unit: mm (in.) *1: Pleas e contact your neares t Mits ubishi El ectric Syst em & Service Co.
App - 51 App - 51 MELSEC-Q APPENDICES (3) QJ71LP21S-25 Unit: mm (in.) *1: Pleas e contact your neares t Mits ubishi El ectric Syst em & Service Co.
App - 52 App - 52 MELSEC-Q APPENDICES (5) QJ72LP25-25 90(3. 54) *1 27.4 (1.08) 98(3. 86) 23(0. 91) 4(0. 16) Unit: mm (in.) *1: Pleas e contact your neares t Mits ubishi El ectric Syst em & Service Co., Lt d. for detail s. (6) QJ72LP25G, QJ72LP25GE Unit: mm (in.
App - 53 App - 53 MELSEC-Q APPENDICES (7) QJ72BR15 Unit: mm (in.).
Index - 1 In dex - 1 INDEX [A] Applic able s ystem s ....................................... 2-13 [B] Block guaran tee per s tation ............................ 6-8 [C] Coaxia l ca b le ................................................... 3-5 Comm on param eter LX/LY s ettin g .
Index - 2 In dex - 2 Loopbac k f unction ..................................... 3-19 READ i nstructi on ................................... 6-18,6- 19 RECV i nstructi on ........................................... 6-19 RECV S instruc t ion ............
WARRANTY Please confirm the follow ing product warranty details before using this product. 1. Gratis W arranty Term and Gratis W arranty Rang e If any faults or defects (hereinaf ter "Failure&quo.
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SH(NA)-080124-S( 1307)MEE MODEL: Q-NET/H-R-I/O-E MODEL CODE: 13JF96 Specifications subject to change without notice. When exported from Japan, this manual does not require application to the Ministry of Economy, Trade and Industry for service transaction permission.
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