Instruction/ maintenance manual of the product RS-232C NEC
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(1/7 2) EX TE RN A L C ONTRO L N E C L C D M o n i t o r R e v . 3 . 5 I N D E X I . A pp lication ................................................................................ 3 II. Pr eparation ....................................................
(2/7 2) 9 . Date & Time r ead and wri te .............................................................. 44 9.1 D at e & T i m e R ead .................................................................... 44 9.2 D at e & T i m e W r i te ...
(3/7 2) I . Appli cation This docu me nt defin es the c omm unicat ions met hod for contr ol o f the NEC LC D monitor, M ultiSy nc P402 /P4 62 / P552 /P70 2 /V4 22 /V462 /V55 1 /V651 /V322 /V6 52 /V552 /X46 1S /X551S /X40 1S /X463 UN /X551U N /V4 63 /V4 23 whe n usin g an ex ternal con trolle r .
(4/7 2) II . Prepar a tio n 2. Co n nectors and wi ring 2.1 RS- 232C Remote con trol Con ne ct or: 9- pi n D -Su b Cab l e: Cr os s (r ev er sed ) cable o r null modem cable (Pl ease r efer “ Co ntroll ing the LCD m onit or via RS-232 C Remo te con trol ” on Us er ’ s ma nu al.
(5/7 2) III . Comm uni cati on s pecifi cation 3. Co mmuni cat ion Parameter 3.1 RS- 232C Remote con trol (1) Co mm un i cat io n syst em Asy nch ro no u s (2) In te rf a ce RS-2 32 C (3) Ba ud r a te 9600 bp s (4) Da ta l e ngt h 8bit s (5) Pa ri ty None (6) St op b i t 1 bi t (7) Co mm un i cat io n code ASCI I 3.
(6/7 2) 4. Co mmuni cati on Format The co mman d pack et c on s ists of four parts, Heade r, Me ssage, Check code and Del imiter . Rec ommend ed seq uence of a ty pical proc edure to cont rol a monito.
(7/7 2) 4.1 H eader block f ormat (fi xed l ength) 1 st byte) SOH : St ar t of Header ASC II SOH (01h) 2 nd byte ) Rese rved: Reserve d for future ext ension s. On this m onitor , it m ust be ASCII '0'( 30h). 3 rd byte ) Dest inatio n: Dest inatio n equi pmen t ID.
(8/7 2) 'A '(4 1h ). If y ou w an t to c ont ro l al l o f th e mo ni to rs wh ic h ar e c on ne ct ed b y a da isy c hai n, s pe ci fy a des ti nat io n ad dr es s ‘ ＊ ’ (2 Ah) . 4 th by te) S ou rc e: S ou rce equi pment ID. (S ender) Spe cify a sende r addr ess.
(9/7 2) 4.2 M ess age block format “ Messa ge b lo ck f orma t ” is allied to the “ M essage Type ” in the “ Header ” . Refe r to t he sec tion 6 “ Messag e form at ” fo r more deta il. 1 ） Get curre nt par ameter The contr oller sends this me ssage when you w ant to get th e stat us of the monitor .
(1 0/7 2) se cti on 5. 5 “ C om ma nds m essag e ” for m ore de tails. 6 ） Com mand r eply The monit or rep lies t o a que ry fro m th e cont roller. “ Comm and re ply me ssage ” fo rmat d epends on each c ommand. Refe r to s ec tion 5.5 “ Commands messa ge ” fo r more detail s.
(1 1/7 2) 4.3 C heck code Chec k c ode i s the Bl ock Che ck Co de (B CC ) bet ween t he He ader an d the End of Me ss age e xcep t S OH. D n+1 = D 1 XO R D 2 XO R D 3 X OR ,,, D n XOR : Excl usive OR Fol lowing is an examp le of a Check cod e (BCC ) calcu lation .
(1 2/7 2) 4.4 D e limiter Pack et del im iter cod e; ASCII C R(0Dh) . Header Message Check code Delimiter.
(1 3/7 2) 5. Me ss age type 5.1 Get cu rr ent Parameter from a m onitor. Send t his me ssag e wh en you wan t to g et the statu s of a moni tor. For the stat us that y ou wa nt to get, spe ci fy the “ OP co de pa ge ” t he “ OP co de ” , re fer t o “ App endix A.
(1 4/7 2) 5.2 "G et parameter" reply Th e moni tor repli es wi th a curr e nt va lue a nd the statu s of the req uest ed it em (oper ati on code ). 1 st byte ) STX: Start of Mes sage ASC II STX (02h) 2 nd -3 rd byte s) Res ult co de. The se byt es ind icate a resul t of t he r equest ed comm ands a s foll ows, 00h: N o Er ro r.
(1 5/7 2) 5.3 S et parameter Send t his me ssag e to c h ange mo nitor ’ s adjust ment an d so on. The contr oller reques ts a mo nitor to c hange value. 1 st byte ) STX: Start of Mes sage ASC II STX (02h) 2 nd -3 rd byte s) OP code p age: O perati on cod e pa ge Thi s OP c ode pa ge dat a must be enc oded to AS CII cha racter s.
(1 6/7 2) 5.4 "S et parameter" reply The Mo nito r echo es b ac k the pa ramete r and status of t he req uested opera tion co de. 1 st byte ) STX: Start of Mes sage ASC II STX (02h) 2 nd -3 rd byte s) Res ult co de ASC II '0' '0' (3 0h, 30 h): No Error.
(1 7/7 2) 5.5 C omm ands "Comma nd message form a t" depe nd s on ea ch co mm and . Some co mm ands a re show n with usag e. Refe r to sect io n 7 to 13. 5.5.1 Save Cu rr ent S ettings. The co ntro ll er r eque st s for th e moni tor to store the adjust ed val ue.
(1 8/7 2) 5.5.2 Get T imi ng Repo rt and Timing reply . The co ntro ll er r eque st s the mo nitor to rep ort th e dis played image timin g. Sen d "07" (30h, 37h) a s Get T iming Repo rt com mand.
(1 9/7 2) 5.5.3 NU LL Message The NU LL m es sage ret ur n ed from the m onitor is us ed in the f ollowi ng cas es; To tell the con tr olle r th at th e mo ni tor does n ot ha ve an y answ er t o .
(2 0/7 2) IV. C on trol Co m m ands 6. Typ ical proced ure examp le The fo llow i ng is a sample of proce dures to contr ol the monito r, these are examp les of "Get param eter", "Se t para meter" and " Save cu rrent sett ings".
(2 1/7 2) CR (0 Dh ): En d of p ac ke t Step 3 . Th e cont roll er request the m onitor to ch ange the Ba ckligh t sett ing Head er SOH (01h) : Star t Of H eader '0' (30h) : Rese rved Mon itor I D: Spe cify t he Moni tor ID of which you wan t to c hange a sett ing.
(2 2/7 2) Head er Mess ag e Chec k c ode Del imiter SOH- '0 '-Mo ni tor ID-' 0' -'A '-'0 '-'4 ' STX-'0 -'C' -ETX BCC CR Head er SOH (01h) : Star t Of H eader '0' (30h) : Rese rved Mon itor I D: Spe cify t he Moni tor ID whi ch you want t o stor e the settin g.
(2 3/7 2) 6.2 . How to r ead the measurement value of the b u ilt-in tem perature sensors. MultiS yn c P402 /P4 62 /P552 /P7 02 /V422 /V462 /V5 51 /V651 /V3 22 /V652 /V 552 /X46 1S /X55 1S /X401S /X46 3U N /X 55 1UN /V46 3 / V423 ha ve thr ee bui lt-in tempe rature senso rs.
(2 4/7 2) '0'- '0 ' (3 0h , 30 h): Th i s opera tion i s "Set param eter" type. '0' -'0'-' 0'-'3' (30h, 30h, 3 0h, 33 h): Number of tem peratu re sen sors a re 3 (0003h ).
(2 5/7 2) Read ou t va lu e is 2's c o mplemen t. ETX (03h) : End of Mes sage Chec k code BCC : Bloc k Chec k Code R e f e r t o t h e s e c t i on 4. 5 “ Che ck cod e ” for a BCC ca lculat ion. Del imiter CR (0Dh): End o f pack et Rea dout v alue Tem peratu re [Celsi us] Bina ry Hexa de cima l +12 5.
(2 6/7 2) 6.3. O peration Code (OP code) Table Item OP cod e pag e OP cod e Paramete r Remark s Backli gh t 00h 10h 0: d ark | 100( 64 h): br ight Contra st 00h 12h 0: low | 100( 64 h): hi gh Sharpn e.
(2 7/7 2) It em O P co d e pa g e OP co de Para me ter Re ma rk s Am bie nt Br igh tn ess Lo w 10 h 33 h 0 : dar k | 100( 64 h): br ight Am bie nt Br igh tn ess High 10 h 34 h 0 : dar k | 100( 64 h): br ight Ge t Curre nt Il lum in anc e 02 h B4h 0: | Max.
(2 8/7 2) It em O P co d e pa g e OP co de Para me ter Re ma rk s In put R eso lu ti on 02 h DA h In pu t R es olu t io n se le ct 0: no m e an 1:I t em 1 (al w ay s A ut o ) 2:I t em 2 3:I t em 3 4:I.
(2 9/7 2) It em O P co d e pa g e OP co de Para me ter Re ma rk s Ba lan ce 00 h 93 h O : Lef t | 30 :(C en ter ) | 60 : R ig ht No t a va ila bl e on X4 63U N, X55 1U N Tr ebl e 00h 8F h O : Min . | 6:(C en ter) | 12: Ma x. No t a va ila bl e on X4 63U N, X55 1U N Ba ss 00 h 91 h 0 : Min .
(3 0/7 2) It em O P co d e pa g e OP co de Para me ter Re ma rk s PI P H P osi ti on 02h 74 h 0 : lef t | 10 0(6 4h ): ri gh t PI P V P osi ti on 02h 75h 0: top | 100( 64 h): bo ttom As pec t 10h 83 h.
(3 1/7 2) It em O P co d e pa g e OP co de Para me ter Re ma rk s H Posi ti on 02h 38 h 0 : Lef t | MA X.: R igh t OS D Posi ti on V Posi ti on 02h 39 h 0 : Dow n | MAX.
(3 2/7 2) It em O P co d e pa g e OP co de Para me ter Re ma rk s Ti le Ma tri x Me m 10 h 4A h 0 : Non e 1: C om mon( de faul t) 2: Ea ch In pu t Po wer O n D el ay 02h D8 h 0 : Off ( 0s ec ) │ 50:.
(3 3/7 2) It em O P co d e pa g e OP co de Para me ter Re ma rk s Pr ior it y1 1 0h 2E h Pr ior it y2 1 0h 2F h Pr ior it y3 1 0h 30 h Pr ior it y4 10 h 31 h Cu sto m Dete ct Pr ior it y5 1 0h 32 h 0:.
(3 4/7 2) It em O P co d e pa g e OP co de Para me ter Re ma rk s In put 0 0h 60h 0: No me an 1: V GA 2: RG B/ HV 3: D VI 4: H DM I (S et onl y) 5: Vi de o1 6: Vi de o2 7: S -V ideo 12(0 Ch ): D VD /H.
(3 5/7 2) It em O P co d e pa g e OP co de Para me ter Re ma rk s PI P I np ut 02 h 73h 0: No me an 1: V GA 2: RG B/ HV 3: D VI 4: H DM I (S et onl y) 5: Vi de o1 6: Vi de o2 7: S -V ideo 12(0 Ch ): D.
(3 6/7 2) 7. Pow e r con tro l pr ocedure 7.1 Pow er stat us r ead 1) T he con tr olle r re qu e sts the monit or to reply a cur rent p ower s tatus. Head er Mess ag e Chec k code Delimi ter SOH -&apo.
(3 7/7 2) CR (0 Dh ): En d of p ac ke t.
(3 8/7 2) 7.2 P ower con tro l 1) The controller requests the monitor to control monitor power. Head er SOH (0 1h): S tart Of He a der '0' (30h) : Rese rved Mon itor I D: Spe cify t he Moni tor ID whi ch you want t o chan ge a s etting . Ex.
(3 9/7 2) De lim it er CR (0 Dh ): En d of p ac ke t.
(4 0/7 2) 8. As set D at a r ead and write Mult iS ync P4 02 /P4 62 /P55 2 /P7 02 /V422 /V462 /V5 51 /V65 1 /V3 22 /V65 2 /V552 /X461S /X5 5 1S /X 401S /X4 63UN / X551UN /V463 /V423 have t he a rea fo r to st ore us er ’ s a sset d ata of up t o 64by tes.
(4 1/7 2) De lim it er CR (0 Dh ): En d of p ac ke t.
(4 2/7 2) 8.2 A sset D ata write This c omma nd is used i n order to wri te Ass et Dat a. 1) The co ntroll er req uests t he mon itor to wr ite Ass et dat a.
(4 3/7 2) CR (0 Dh ): En d of p ac ke t.
(4 4/7 2) 9. Da te & Tim e re ad and write 9.1 Dat e & Tim e R ead This c omma nd is used i n order to rea d the settin g of Date & Time. 1) The co ntroll er req uests t he mon itor to re ply wit h the Date & Time.
(4 5/7 2) WW: we ekda ys '0 '-' 0' (30 h, 3 0h ): S un day '0 '-' 1' (30 h, 3 1h ): M on day '0'- '2 '(30 h, 32h ): T ue s day '0'.
(4 6/7 2) 9.2 D ate & Time Write This command is used in order to write the setting of the Date & Time. 1) The controller requests the monitor to write Date & Time.
(4 7/7 2) De lim it er CR (0 Dh ): En d of p ac ke t 2) T he mon it or r epli es a data for co nfirma tion. Head er Mess ag e Check code Del imiter SOH -'0'-' 0'-Mon itor I D-&apos.
(4 8/7 2) De lim it er CR (0 Dh ): En d of p ac ke t.
(4 9/7 2) 10. S c hedule read and writ e 10. 1 S chedule R ead This command is used in order to read the setting of the Schedule. 1) T he con tr olle r re qu e sts the monit or to read S chedu le.
(5 0/7 2) | '3 '-' B' (33 h, 4 2h ): 5 9 '3'- 'C '(33 h, 43h ): O n t imer is n't se t. OFF _HOUR: Turn off ti me (hou r) '0' -'0'(3 0h, 30 h): 00 | '1' -'7'(3 1h, 37 h): 23 (=17h) '1' -'8'(3 1h, 38 h): Of f timer isn't set .
(5 1/7 2) '0'- '0 '(30 h, 30h) : (O n t his mon itor, it is always ‘ 00 ’ ) EXT 3: Ext ension 3 '0' -'0'(3 0h,30h ): (On this m onitor , it is al ways ‘ 0.
(5 2/7 2) *** Fo llowing co mm and also can be used for to keep backwar d compatib ility, in or der to read the s e tti ng of the Schedule. 1) T he con tr olle r re qu e sts the monit or to read S chedu le.
(5 3/7 2) OFF_ HO UR: Tu rn o ff t im e (hour) '0' -'0'(3 0h, 30 h): 00 | '1' -'7'(3 1h, 37 h): 23 (=17h) '1' -'8'(3 1h, 38 h): Of f timer isn't set .
(5 4/7 2) 10.2 S chedule Writ e This command is used in order to write the setting of the Schedule. 1) The controller requests the monitor to write Schedule.
(5 5/7 2) '1'- '1 '(31 h, 31h) : HD MI * Ple as e s el ec t ac ti ve in pu t on y ou r sys te m ( se t ting). * I f you select inact ive inp ut her e, t he inp ut chan ge exe cution will be i gnored.
(5 6/7 2) De lim it er CR (0 Dh ): En d of p ac ke t 2) T he mon it or r epli es a data for co nfirma tion. Head er Mess ag e Ch ec k co de Del imiter SOH -'0'-' 0'-Mon itor ID-&ap.
(5 7/7 2) WD: We ek s et ting bi t 0 : Mon da y bit 1: Tue sd ay bit 2: Wed ne sday bi t 3 : Thu rs da y bi t 4 : Fri da y bi t 5 : Sat ur da y bi t 6 : Sun da y EX .
(5 8/7 2) Head er Mess ag e Chec k c ode Del imiter SOH -'0'-M onitor ID- '0'-'A' -'0'-' A' STX- 'C '-'2 '- '1'- '5.
(5 9/7 2) De lim it er CR (0 Dh ): En d of p ac ke t.
(6 0/7 2) *** Fo llowi ng co mm and also can be used f or to keep backward compat ib ility, in or der to write the se tti ng of the Schedule. 1) The controller requests the monitor to write Schedule.
(6 1/7 2) bi t 3 : Thu rs da y bi t 4 : Fri da y bi t 5 : Sat ur da y bi t 6 : Sun da y EX . '0 '-' 1' (30 h, 3 1h ): M on day '0'- '4 '(30 h, 34h ): W ed n esd.
(6 2/7 2) '0 '-' 0' (30 h, 3 0h ): 0 0 | '1'- '7 '(31 h, 37h ): 2 3 ( =17h) '1' -'8'(3 1h, 38 h): Of f timer isn't set .
(6 3/7 2) 'C'- '2 '-'1 '- '5' (43h , 3 2h, 31h , 35h) : Enab le/Dis able Schedu le wri tes co mmand PG- EN: En able/D isable Schedu le dat a PG: Progr am No. '0' -'0'(3 0h, 30 h): Pr ogram N o.
(6 4/7 2) 11. S elf di agnosis 11. 1 Sel f-d i agnosis status read This command is used in order to read the Self-diagnosis status. 1) T he con tr olle r re qu e sts the monit or to read S elf-d iagnos is sta tus.
(6 5/7 2) ET X ( 03 h): E nd o f Me ss age Chec k code BC C: Bl ock C he ck C od e R e f e r t o t h e s e c t i on 4.5 “ Check cod e ” for a BCC ca lculat ion.
(6 6/7 2) 12. S eri al No. & M odel Name Read 12. 1 Ser ia l No. R ead This command is used in order to read a serial number. 1) T he con tr olle r re qu e sts the monit or to read a seri al num ber.
(6 7/7 2) 12.2 Model N ame Read This command is used in order to read the Model Name. 1) T he con tr olle r re qu e sts the monit or to read M odel Name.
(6 8/7 2) 13. S e curity Lock 13. 1 S ecuri ty Lock Control This command sets the condition of security lock function to "LOCK" or "UNLOCK". If security pass codes 1st to 4th are matched w ith monitor resisted pass codes, then this command is executed, and reply no error status and a new condition.
(6 9/7 2) Head er Mess ag e Chec k code De lim it er SOH- '0 '-'0 '- Moni tor ID - 'B'-'0' -'A' STX- 'C '-'3 '- '1'- &ap.
(7 0/7 2) 14. Di r ect TV Cha nel R ead & Wr ite When DTV unit (Option unit) is installed, channel setting ｓ is read and write directly. 14.1 Dir ect TV Chane l R ead & Reply 1) T he con tr olle r re qu e sts the monit or to read c hanne l info rmatio n.
(7 1/7 2) 14.2 Dir ect TV Chane l Write & R eply 1) T he con tr olle r re qu e sts the monit or to write chann el inf ormati on. Head er Mess ag e Chec k code Del imiter SOH-'0'-Monitor .
(7 2/7 2) All data are subject to change without notice. (Dec em ber. 25, 20 12 ) Copyright 2004-2012 NEC Display Solutions, Ltd. All Right Reserved This docu ment pro vide s the t ec hnical information for user s. NEC Di splay Solutions, Ltd. r eserves the ri ght to change or modify the information contained herein w it hout noti ce.
An important point after buying a device NEC RS-232C (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought NEC RS-232C yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data NEC RS-232C - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, NEC RS-232C you will learn all the available features of the product, as well as information on its operation. The information that you get NEC RS-232C will certainly help you make a decision on the purchase.
If you already are a holder of NEC RS-232C, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime NEC RS-232C.
However, one of the most important roles played by the user manual is to help in solving problems with NEC RS-232C. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device NEC RS-232C along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
