Instruction/ maintenance manual of the product 90-70 GE
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GE Fanuc Automation Progr ammable Contr o l Product s Series 90 ™-7 0 Enhanced Hot Standby CPU Redundan cy User's Gui de GFK-1527A May 2000.
GFL -002 War nings , Ca uti ons, a nd N ote s as Used in this Pu blicat io n Warning Warning n o tices ar e u sed in th is pu blicatio n to em phas ize th at ha zardo u s voltages , cu rrents, temp eratu res, or o ther co nd ition s that co uld cau se p erso nal in ju ry ex ist in this equipment or may be a ssoci a ted with its use.
Preface GF K-1527A iii T his m anua l is a ref erenc e to t he ha r dw are c o mpone nts , co nfigu rat io n and o peratio n of Enh a nce d Ho t Standby CPU Re dundancy for th e S eries 90-70 P rogrammable Lo gic Cont roller.
Prefac e iv Serie s 90 ™ -70 Enha nced Ho t Standb y CPU Re dund ancy U ser's G ui de–May 2000 GF K-1527A Logicmaster 90-70 Program ming Soft ware User's Manual (GFK-0263) .
Cont ents GF K-1527A v Chapter 1 I ntr oduc tion..................................................................................................... 1-1 En h ance d Hot St an dby CPU Re d u nd ancy ....................................................
Conten ts vi Serie s 90 ™ -70 Enha nced Ho t Standb y CPU Re dund ancy U ser's G ui de–May 2000 GF K-1527A Po rt 2.................................................................................................................... 2-5 Po rt 3.
Conten ts GF K-1527A Contents vii Fail Wai t Ti me ...................................................................................................... 4-8 Pro gram min g a Dat a Tran sf er f r om Back up Un i t to A ctive Un i t....................
Conten ts viii Serie s 90 ™ -70 Enha nced Ho t Standb y CPU Re dund ancy U ser's G ui de–May 2000 GF K-1527A Faul t A c ti on s in a CPU Re d und ancy Sy stem ................................................................. 5- 7 Co nfigu rab le Fau lts.
GF K-1527A 1- 1 Intr oduction This c hapte r int roduce s th e met h od o f CPU Redun dan cy for the Se r ies 90 -70 P rog rammable L ogic Controlle r , w h ich is refe r r ed to a s E nhanced H ot Sta n dby CPU Re dundan cy .
1-2 Serie s 90 ™ -70 Enha nced Ho t Standb y CPU Re dund ancy U ser's G ui de – May 2000 GF K-1527A 1 Enha nce d Hot Sta ndby CPU Redunda ncy CP U Redu ndanc y allo ws a crit ical ap plic a tio n o r pro c es s to c o n tinue o perati ng if a f ailure o cc urs i n an y sin g l e comp on en t.
GF K-1527A Chapter 1 Introduc t ion 1-3 1 Fea t ure s of E nhanc ed Hot St andby C PU Redunda ncy B umple ss s w itching Synchronize d CPU s 4.7 ms (CGR 935), 5.
1-4 Serie s 90 ™ -70 Enha nced Ho t Standb y CPU Re dund ancy U ser's G ui de – May 2000 GF K-1527A 1 Re dundanc y C PUs a s Compar ed t o Othe r Serie s 9 0-7 0 CPUs The R edunda ncy CPU has s ev eral dif ference s in ope ratio n compa r ed to o t her Serie s 90-70 CP U s.
GF K-1527A Chapter 1 Introduc t ion 1-5 1 Compo nents of the Enhance d Hot S t andby Re dundanc y Sys tem Enhan ced R edunda nc y CP U Mo dul e To utili ze t he fe atures des crib ed in this m an ual,.
1-6 Serie s 90 ™ -70 Enha nced Ho t Standb y CPU Re dund ancy U ser's G ui de – May 2000 GF K-1527A 1 Genius I/O The redunda nt portio n o f t h e sy stem is b ased o n Ge ni us I/O . A sy stem using sta ndard Se ri es 90-70 racks c an hav e mu l t iple Ge n ius I/O bus netwo r ks.
GF K-1527A Chapter 1 Introduc t ion 1-7 1 Enhan ced H ot Stan dby CP U Red undanc y S ystem with Lo cal I /O T he f ollow ing il lust ratio n is an e xample of an E nha n ce d H ot S tandby CPU Re dundanc y sy ste m w ith Lo cal I/O i n standard Se ri es 90-7 0 expa nsio n racks.
1-8 Serie s 90 ™ -70 Enha nced Ho t Standb y CPU Re dund ancy U ser's G ui de – May 2000 GF K-1527A 1 Cont rol St rategi es There a r e tw o diffe r en t Control St rategies f or Enhanced H ot Standby CP U R edundancy : GHS and GDB.
GF K-1527A Chapter 1 Introduc t ion 1-9 1 Ba sic E nhanc ed Hot Sta ndby Operat ion In an Enhanced H ot Standby CPU Redundant sy stem, Genius I / O Blo cks a r e norma lly co n figured fo r Ho t Sta n dby op e ratio n .
1-10 Serie s 90 ™ -70 Enha nced Ho t Standb y CPU Re dund ancy U ser's G ui de – May 2000 GF K-1527A 1 Ba sic CP U Re dundancy Se t ups Th er e are thr ee ba s i c C PU Redu n dan cy set u p .
GF K-1527A Chapter 1 Introduc t ion 1-11 1 Single B us with Flo ating Ma ster: G DB Co ntrol S tr ategy T his ty pe of sys tem als o us e s a si ng le b us w ith b us co ntro lle rs i n e ac h PL C . H owev er, no sw itcho ver o c c urs o n in iti al s y n chro niz at io n to make the P rima r y U nit t he activ e u n it.
1-12 Serie s 90 ™ -70 Enha nced Ho t Standb y CPU Re dund ancy U ser's G ui de – May 2000 GF K-1527A 1 Dual Bus with Flo ating Master: GDB Contr ol Strategy Thi s ty pe of system u ses du a l buses w it h bus con tr oll ers in each PLC. No sw i t ch ove r occur s on ini tial synchr onizat i on t o make the Primary Uni t th e Active U n it.
GF K-1527A Chapter 1 Introduc t ion 1-13 1 Duplex CP U R ed und ancy On ly dis c rete blo cks ( or R emo te I/O Sc anne rs w ith o nly disc r ete mo dules ) ca n b e co n figur ed fo r Duplex CPU Re dun dancy mode .
GF K-1527A 2- 1 System C omponents This c hapte r desc r i bes the h ardw ar e co mpone n t s f or an E nha nced H ot Standby CP U R edundancy sy ste m.
2-2 Serie s 90 ™ -70 Enha nced Ho t Standb y CPU Re dund ancy U ser's G ui de – May 2000 GF K-1527A 2 Re dundancy C PU T he red u n da n cy CPU s hav e b ee n des igne d s pe cif ically fo r Se ries 90 -70 H o t Standb y CP U R e dunda ncy applicat ions .
GF K-1527A Chapter 2 S yste m Com pone nts 2-3 2 CPU Archit ectu re The CGR 772 and CG R935 have a n 80486DX4 microp roce sso r , on-board memo r y , and a dedica ted VLS I p r oce s s or for p er for m i n g Bool ea n op er a t i ons . Th e CG R 772 and CGR 935 interfac e to se rial po r ts a n d t h e sy ste m b us.
2-4 Serie s 90 ™ -70 Enha nced Ho t Standb y CPU Re dund ancy U ser's G ui de – May 2000 GF K-1527A 2 CPU Featu res Mem ory Protec t Keys w itc h T he Me mory Prote ct key s w itch c a n b e us ed to ma nually lock p r ogr am an d con fi g ur at i on da ta fr om access b y a remo te p r og r amme r (s e ria l o r Et h er net) .
GF K-1527A Chapter 2 S yste m Com pone nts 2-5 2 CPU M o de S w itc h Th e C PU Mode s wit ch s el ect s th e oper at in g mod e o f th e CPU: RUN /ENA BLED, RU N/DIS ABL ED , or STOP . The CPU mo de c a n also b e controlled f rom t he p r ogramme r .
2-6 Serie s 90 ™ -70 Enha nced Ho t Standb y CPU Re dund ancy U ser's G ui de – May 2000 GF K-1527A 2 Re dundancy C ommuni ca t i ons Mod ule The R edunda ncy Communic atio ns Mo dule (R CM),.
GF K-1527A Chapter 2 S yste m Com pone nts 2-7 2 LEDs Unit Select Pushbutton C onnec tor for Communications Ca ble BOA RD O K LOCA L SYSTE M RE ADY LOCA L SYSTE M ACTI V E REM O T E SY ST EM RE AD Y R.
2-8 Serie s 90 ™ -70 Enha nced Ho t Standb y CPU Re dund ancy U ser's G ui de – May 2000 GF K-1527A 2 LEDs Conne ct o r f or Pr ogr am mer Conne ct o r f or Redu ndanc y Co mmu n i ca t i o n.
GF K-1527A Chapter 2 S yste m Com pone nts 2-9 2 Bus Receiver Module The B us R eceiver Module (B RM), cat alog num ber IC697B EM711, is the exp ansion rack inte r face to th e I/ O bus.
2-10 Serie s 90 ™ -70 Enha nced Ho t Standb y CPU Re dund ancy U ser's G ui de – May 2000 GF K-1527A 2 Geni us Bus C ontrol le r The Ge nius B us Co n troller (IC697B EM731) in t e r face s t he Series 90-70 PLC to a Ge n ius I /O b us.
GF K-1527A Chapter 2 S yste m Com pone nts 2-11 2 Single B us Ge niu s Networ ks Whe n using s in gl e-bus Ge nius netw orks i n a H ot Sta ndby CPU Redundancy s yste m, one Ge n ius Bus C on tr oll er for th e bu s m u s t be l oca t ed in th e Pri mar y PLC an d on e in th e S econ d ar y PLC.
2-12 Serie s 90 ™ -70 Enha nced Ho t Standb y CPU Re dund ancy U ser's G ui de – May 2000 GF K-1527A 2 30. Data fr om Seria l Bus Address 31 in th e P r imar y PLC is the "preferr ed" data.
GF K-1527A 3- 1 Conf igur ati on Requi rement s T his c hapte r de fines the s pe cia l co nfigu rat io n req ui r eme n ts o f an E nhanc e d H o t Sta n dby CPU Re dun dan cy s ystem.
3-2 Serie s 90 ™ -70 Enha nced Ho t Standb y CPU Re dund ancy U ser's G ui de – May 2000 GF K-1527A 3 Pr ogr am F o ld er s i n Lo g ic ma st er 9 0 With the Log i cm a s t er pr ogr a mm in g s oft war e, th ere mu s t be di ff er ent fold er s for ea ch con fi g u r ati on .
GF K-1527A Chapter 3 Co nfiguration R equ ir eme nt s 3-3 3 Config uring Sh ar ed I/O R efer ence s Shared I/O data is tra nsfe rr ed f r om the active CPU to the b ackup CPU each sw ee p. Re ference ad dr ess es an d ran g es mu s t be con fi g u r ed for th e da ta to be tr ans fer r ed.
3-4 Serie s 90 ™ -70 Enha nced Ho t Standb y CPU Re dund ancy U ser's G ui de – May 2000 GF K-1527A 3 Findin g th e Memor y Ava ilabl e for Appl ication P rogr am S tor age Sh are d I/O dat a is s tored in t he same memo ry as appl icat ion p rogr a m sto r age.
GF K-1527A Chapter 3 Co nfiguration R equ ir eme nt s 3-5 3 Conf iguring t he Re dunda ncy C PU f or Non-re dundant Ope r at ion The R edunda ncy CP U c an be us ed f or bo th redunda nt and n on-red undant applica t i ons. Fo r non- redunda nt appl icatio ns, do n ot co nfigure R edundancy Communicatio n s Mo dules in the sy stem.
3-6 Serie s 90 ™ -70 Enha nced Ho t Standb y CPU Re dund ancy U ser's G ui de – May 2000 GF K-1527A 3 Genius I/O Bl oc k Confi gurat ion Parame te rs Whe n using the GH S Control St rategy , if a Ge n i us B us Controlle r is set to redunda nt, the n all of its I /O b lo c ks mus t als o b e s e t to redu nda n t.
GF K-1527A 4- 1 Nor mal Oper ation Thi s chapt er discusses: Powe rup of a Re du ndant CPU Res yn c h r on iz a t i on of th e Red u n da n t C P U GHS Co n t r ol Str ategy GDB Contr ol Stra t egy %S.
4-2 Serie s 90 ™ -70 Enha nced Ho t Standb y CPU Re dund ancy U ser's G ui de – May 2000 GF K-1527A 4 Powerup of a R edundant CP U Whe n a redu ndant CPU is po wered up, i t perfo rm s a co mpl ete hardware diag n ostic chec k and a co mple te c hec k o f the ap pl icatio n p r og ram and c onf igu ratio n pa ramete rs.
GF K-1527A Chapter 4 No r mal Ope r ation 4-3 4 Inco mpatib le Con figu rations Whe n tw o u nits have inco mpa tib le c o nfig u r atio n s s tored (f or ex am ple , b o th units c o nfig u r ed f o r PR IMARY o r diffe r in g blo cks f or data t ransfe r ), then o n l y one o f th e units can go to R UN mode .
4-4 Serie s 90 ™ -70 Enha nced Ho t Standb y CPU Re dund ancy U ser's G ui de – May 2000 GF K-1527A 4 FST _ E XE r efer en ces for pr og r a m bl ocks wit h the s am e na m e ar e tr an sferr ed fr om th e act i ve t o th e bac kup CPU .
GF K-1527A Chapter 4 No r mal Ope r ation 4-5 4 por t i on of t h e bu s be t w ee n th e BS M a n d t h e bl ock s ) r e s u l t in los s of t h e bl ock s d o wn s tr e a m fr om t he f ailure on t hat bus stub . B us f ailures in s i ngle bu s n etw orks res ul t i n lo ss o f the b loc ks dow n strea m f r om the b us f ailu re.
4-6 Serie s 90 ™ -70 Enha nced Ho t Standb y CPU Re dund ancy U ser's G ui de – May 2000 GF K-1527A 4 Sca n Synchroni za tio n Th e fi g ur e bel o w sh ows th e sweep c om p on en t s for th e act i ve an d th e back u p C PUs.
GF K-1527A Chapter 4 No r mal Ope r ation 4-7 4 The St art o f Sweep Ti me mes sage tr an sfe r repeatedly coo rdi na tes t h e elaps ed time clo cks (upon w h ich t ime rs are b ased ) i n the red u nda n t CP Us . T he s y ste m time is c ont i nuou s as lo ng as o n e o f t he tw o sy stems is ru nning.
4-8 Serie s 90 ™ -70 Enha nced Ho t Standb y CPU Re dund ancy U ser's G ui de – May 2000 GF K-1527A 4 Data Tran sfer T ime Whe n a sy ste m is sy n chro nized, the r e a re a ddi tions to t h.
GF K-1527A Chapter 4 No r mal Ope r ation 4-9 4 Th e con fi g ur ed Fai l Wa it tim e for th e system m u s t be bas ed on th e maxim um ex p ect ed or allo w able diff erence in t h e tw o C PU s reac hing a sy nchro nizat ion p o int.
4-10 Serie s 90 ™ -70 Enha nced Ho t Standb y CPU Re dund ancy U ser's G ui de – May 2000 GF K-1527A 4 Prog rammin g a Data Tran sfer fro m Backu p Un it to Acti ve Unit Optionally , th e pro.
GF K-1527A Chapter 4 No r mal Ope r ation 4-11 4 Disablin g Data T ran sfer Cop y in Backup Un it (SV CREQ #4 3) Servic e Re ques t function b l ock #43 c an be used on t h e bac kup to a llow th e bac kup u nit to b y pa ss th e cop y of th e shar ed I/ O dat a fr om th e act i ve un it .
4-12 Serie s 90 ™ -70 Enha nced Ho t Standb y CPU Re dund ancy U ser's G ui de – May 2000 GF K-1527A 4 A f ault is logg e d t h e f irst time SV CR EQ #43 is use d as a w arnin g that the PL Cs a r e not co mplete ly sy nchr onized. Th e r ever s e d a ta tr an sfer, if an y, i s un a ffect ed b y th is fun ct i on bl ock .
GF K-1527A Chapter 4 No r mal Ope r ation 4-13 4 Examp le In the f ollow i n g examp le, w hen %M 0003 5 is o n, the input a nd o utput co pies are dis a bled.
4-14 Serie s 90 ™ -70 Enha nced Ho t Standb y CPU Re dund ancy U ser's G ui de – May 2000 GF K-1527A 4 Swi tc hing Cont rol to t he B ack up Uni t Co n trol s witc h es f rom t h e act iv e unit to t h e b acku p u nit if : 1 . t he ac tiv e unit has a f ailure; 2 .
GF K-1527A Chapter 4 No r mal Ope r ation 4-15 4 RUN Disabled Mod e RU N/D IS ABL ED mo de c ause s all phy sic al ou tputs to go to thei r de f ault s t ate i n t hat P L C. I npu ts ar e st il l scan n ed an d l ogi c i s solved . A C PU in RUN/ DI S A BLE D m ode may be the ac tive u nit .
4-16 Serie s 90 ™ -70 Enha nced Ho t Standb y CPU Re dund ancy U ser's G ui de – May 2000 GF K-1527A 4 Exampl e 2: R ole sw itche s allowe d on both unit s Th e Secon dar y un it dr i ves th e out p u t s in th i s ex am pl e.
GF K-1527A Chapter 4 No r mal Ope r ation 4-17 4 Exampl e 5: R ole s witche s allowed on both units S econdar y U nit Activ e No te: S econ d ar y un i t acti ve is n ot a recom m en ded m od e of op er a ti on wh en u s in g th e G HS Co ntro l S t rat e gy .
4-18 Serie s 90 ™ -70 Enha nced Ho t Standb y CPU Re dund ancy U ser's G ui de – May 2000 GF K-1527A 4 Exa mpl e 8: In v alid T he f ollow ing s ituat ion is not valid . I f de tec ted , t he u nits sw itch ro les auto matic ally and b eh av e as in E x ampl e 3 abo ve.
GF K-1527A Chapter 4 No r mal Ope r ation 4-19 4 Background U ser C h ecksum and Backgrou nd Win dow Timing I nst ruct ions Pe r for m in g Use r pr ogr am Ch e ck s u m ve r i fi ca ti on an d Ba ck .
4-20 Serie s 90 ™ -70 Enha nced Ho t Standb y CPU Re dund ancy U ser's G ui de – May 2000 GF K-1527A 4 Exampl e The exa m pl e b elow calculates W o r ds pe r Swe ep fo r a CGR 935.
GF K-1527A Chapter 4 No r mal Ope r ation 4-21 4 Miscellaneo us Op eration Info rmatio n Timer and P ID Fu ncti on Blo cks T i m e r a n d P I D fu n ct i on bl ock s r ema in in lock s t ep be t we en t wo s yn ch r on iz ed un i t s pr ovi d ed : A.
4-22 Serie s 90 ™ -70 Enha nced Ho t Standb y CPU Re dund ancy U ser's G ui de – May 2000 GF K-1527A 4 a s can s et th a t is s can n ed ever y oth er sweep (th a t i s, PERI OD = 2 ) , th en th e Pri mar y CPU mi gh t sca n i t s scan s et in on e s weep a n d th e S econ d ar y CPU sca n it s s can set in th e n ext.
GF K-1527A Chapter 4 No r mal Ope r ation 4-23 4 Geniu s Bus Co ntro ller Switchin g Ge n i u s Bu s C on tr ol l er s st op s e n din g ou t p u t s t o G e n i us I/ O bl ock s wh en n o ou t p ut dat a h a s bee n r ecei ved fr om th e PLC C P U for a p er i od eq u al to t wo time s th e co nfigu r ed watc h dog ti meo ut.
4-24 Serie s 90 ™ -70 Enha nced Ho t Standb y CPU Re dund ancy U ser's G ui de – May 2000 GF K-1527A 4 Et herne t Gl obal Da ta in a Redundanc y CPU Ethernet G l ob al Data is e nhanced to provide o ptimal use w i t h Re dundancy CPUs.
GF K-1527A Chapter 4 No r mal Ope r ation 4-25 4 Ethernet G lobal Data Prod uction Whe n the tw o units of a CPU Redundancy system are sy n chr onized, Eth ernet G l ob al Data exch an g es ar e pr od u ced on ly by th e a ct i ve un it .
GF K-1527A 5- 1 Fault Detectio n This c hapte r desc r i bes how faults are h andled in a R edunda nc y sy stem. Co n figu r atio n of Fault Actio ns Faul t Detecti on Faul t Response Fau lt ing RC Ms.
5-2 Serie s 90 ™ -70 Enha nced Ho t Standb y CPU Re dund ancy U ser's G ui de – May 2000 GF K-1527A 5 2 . If an expa n sio n rack fails afte r a u nit b eco mes a s tand-a lone u nit, a diag nos tic f ault w ill b e lo gge d o n t h at u nit b ut t h e u nit w ill s tay in RU N mo de and c onti n ue to c ont rol the p roc e ss .
GF K-1527A Chapter 5 F ault De t ection 5-3 5 PLC Fault Table Messages f o r Redundancy T he f ollow ing tab le l ists mes sag e s, de sc ript ions , a n d c orrec tive acti o ns f or e rror c od e s as so c iate d w ith the redu ndan cy fault group.
5-4 Serie s 90 ™ -70 Enha nced Ho t Standb y CPU Re dund ancy U ser's G ui de – May 2000 GF K-1527A 5 Erro r Code Mess age F au lt Des cript ion Co rrectiv e Act ion 9 Primary and S eco ndary.
GF K-1527A Chapter 5 F ault De t ection 5-5 5 Faul t R espons e The Enha n ced H ot Standby CPU R edundan cy s ystem de tects a n d reports f a ilures o f all crit ical co mpo n ents so th at ap p r opr ia te c ont rol actio n s may be taken.
5-6 Serie s 90 ™ -70 Enha nced Ho t Standb y CPU Re dund ancy U ser's G ui de – May 2000 GF K-1527A 5 Faul ti ng RCM s, Losi ng Links, an d Termina t in g Comm uni cat ions Th er e are di st in ct diff er en ces bet ween l osi n g a r ed un d an t com m un i ca ti on s l in k an d fau l tin g an RCM .
GF K-1527A Chapter 5 F ault De t ection 5-7 5 The f ollow ing ac tio ns a re t ake n w he n a li nk has ti med o ut. 1. Li n k Ti m eout fa ul t i s log g ed in th e PLC Fa ul t Ta bl e.
5-8 Serie s 90 ™ -70 Enha nced Ho t Standb y CPU Re dund ancy U ser's G ui de – May 2000 GF K-1527A 5 Configur able F aults The t ab le b e low show s the c o nfig u rab le f aults a nd t h eir f ault ac tio n def aults . T h ere are t hree fault actio ns: F at al, Non -Fatal, and Conditionally F at al .
GF K-1527A Chapter 5 F ault De t ection 5-9 5 Non-Configur able F ault Gr oup The t ab le b e low show s the no n -co n figu r able faul ts and thei r fault act ion de fau lts. F ault Acti ons Fau lt G r o u p Tabl e Type Desc ripti on Not Sync hr onized Synchron i zed SYS_ B U S_ F AIL PLC Syst e m bu s fai lu r e.
5-10 Serie s 90 ™ -70 Enha nced Ho t Standb y CPU Re dund ancy U ser's G ui de – May 2000 GF K-1527A 5 On-L ine Rep air Wit h a H ot Sta ndby CPU R edundancy s yste m, most s y stem c ompo nent f ailu res c an b e r epaired by r ep la cin g th e fa il ed com p on en t wh i l e th e system i s on l in e.
GF K-1527A Chapter 5 F ault De t ection 5-11 5 Mainta ini ng P arall el Bu s T er mi nat io n It is i mpo rta nt w hen do ing onl ine repa ir to mai ntai n pa ralle l bus te rmi natio n o n t he activ e u n it.
5-12 Serie s 90 ™ -70 Enha nced Ho t Standb y CPU Re dund ancy U ser's G ui de – May 2000 GF K-1527A 5 In th e u n li k el y even t th at a ra ck fa il ur e does oc cu r and i s cor r ect l y dia gn osed , th e ra ck can be r ep la ced wit h p ower r em oved fr om th e system .
GF K-1527A Chapter 5 F ault De t ection 5-13 5 Bus Tr an sm itt er Mo d ule A f ault in t he Bus Tra n sm itte r Mo dule is t r eate d j us t l ike a f aul t i n t h e R e du n dancy Co mmunic atio ns Mo dule . I t is o n ly fatal if t h e f ault pre v e nts c o mmunic atio n s to any e xpans ion ra ck s with in th e system .
5-14 Serie s 90 ™ -70 Enha nced Ho t Standb y CPU Re dund ancy U ser's G ui de – May 2000 GF K-1527A 5 Du al Bus Ne tworks Fo r dual bu s G e nius netw o rks, a si n gle trun k c able failu r e w ill res ult in t h e b loc ks do w n stre a m f rom t h e f ailu r e sw itchi ng to the o the r Ge nius bus .
GF K-1527A A- 1 Cab lin g In fo rma tion IC690CBL 714A Mu lti-d ro p Cable Purpose To i nt erco nn ect Se ries 90-7 0 Redunda nt PLCs in a mult i-drop s erial c ommu nicatio n s a rrangeme n t.
A-2 Serie s 90 ™ -70 Enha nced Ho t Standb y CPU Re dund ancy U ser's G ui de – May 2000 GF K-1527A A Fig u re A -1 . M ul ti-D rop C ab le Co nnec tio n D iag ram Connector B Pin 1 Pin 1 Connector C Connector A M3 pan head screws (2). Screws must not protrude through the end of the Latching Blocks.
GF K-1527A Appe ndix A Cabl ing I nformat i on A-3 A Fi g ur e A - 2. Mult i - Dr op Ca bl e W ir i n g Di a gr am 5 7 10 11 12 13 6 8 14 15 6 8 14 15 5 7 10 11 12 13 9 7 10 11 12 13 6 8 14 15 9 N.
Index GF K-1527A I ndex- 1 % %S re f ere nc es OVR_PRE not av ailable wi th Re dundanc y CPUs, 1-4 A Ac tive un it define d, 1- 1 Appendix A I C690CBL714A Multi -d rop Cab l e, A -1 B Bac kground Wi n.
Inde x Index- 2 Series 9 0™-70 E nhance d Hot Standb y CPU Re dund ancy U ser's G ui de–May 2000 GF K-1527A E Enhanced H ot Standby CP U R edundan cy ba si c op e r at i on, 1 -9 CPU f eature.
Inde x GF K-1527A I ndex Index- 3 spec ific atio ns, A - 1 wiring diagram , A- 3 Multiple I / O sca n sets, 4-21 N No n co n figu r able faul ts, 5 -9 N o n re du nd a nt o pe ra ti o n, 1 -3 co n fig.
Inde x Index- 4 Series 9 0™-70 E nhance d Hot Standb y CPU Re dund ancy U ser's G ui de–May 2000 GF K-1527A Stop mo de, 2-5 Stop to Run mode transition, 4-22 differen t f o r redund ancy CPUs.
An important point after buying a device GE 90-70 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought GE 90-70 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 GE 90-70 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, GE 90-70 you will learn all the available features of the product, as well as information on its operation. The information that you get GE 90-70 will certainly help you make a decision on the purchase.
If you already are a holder of GE 90-70, 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 GE 90-70.
However, one of the most important roles played by the user manual is to help in solving problems with GE 90-70. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device GE 90-70 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
