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31002766 02 Quantum Hot Standby Planning and Installation Guide 840 USE 10 6 00 Version 4. 0.
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3 Tabl e of C ont e nts Saf ety In format ion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 About the Book . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 1 Chapter 1 Overview of Quantum Hot Standb y .
4 Chapter 3 Theory of IEC HSBY Oper ation. . . . . . . . . . . . . . . . . . . . . . . . . 43 At a Glance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43 IEC Hot Standby Definitio ns . . . .
5 Defining th e Transfer Ar ea of State RAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97 Transferrin g Additiona l State RAM Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100 Scan Transfers . . . . . . . . . . . . .
6 Memory Pa rtition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 153 8.2 State RAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155 Efficient Use o f State RAM .
7 Chapter 11 Specificati ons for CHS 110 Hot Standby . . . . . . . . . . . . . . . . 205 Specificatio ns . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 205 Appendices . . . . . . . . . . . . . . . .
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840 USE 10 6 00 Januar y 2003 9 § Safety Information Imp ortant Info rmat ion NOTICE Read the se instruction s carefully, an d look at th e equipment to become fami liar with the devic e befo re trying to insta ll, op erate, o r main tain it .
Safety Inf ormation 10 840 USE 106 00 January 2 003 PLEASE NOTE Electrica l equi pment sh ould be service d only by q ualified person nel. No re spons i- bility is assum ed by Schneider El ect ric for an y cons equen ces ari sing o ut of the u se of this ma terial.
840 USE 10 6 00 Januar y 2003 11 About the Book At a Glance Document Sc ope This man ual co ntains c omplete i nforma tion a bout pro grammabl e control ler Hot Standby s ystems.
About the Book 12 840 USE 106 00 January 2 003 User Comments We welc ome you r comm ents about this docu ment. Yo u can rea ch us by e-mai l at TECHCOMM@modicon.
840 USE 10 6 00 Januar y 2003 13 1 Overview of Quantum Hot Standby At a Glance Purpose Thi s chapter presents a brief overv iew of the H ot Stan dby system , includ ing a descripti on o f Primary and .
Overview of Quantum Hot Standby 14 840 USE 106 00 January 2 003.
Overview of Quantum Hot Standby 840 USE 10 6 00 Januar y 2003 15 1.1 Contro l Introduct ion Purpose Thi s sectio n describ es Primary and Stand by Cont rol for a Quantum Hot Stan dby syste m.
Overview of Quantum Hot Standby 16 840 USE 106 00 January 2 003 Primary and Standby Control Description The Quan tum Hot Standby s ystem is desi gned fo r use wh ere down time c annot be tolerat ed. The sy stem delivers high avail abilit y through r edu ndancy.
Overview of Quantum Hot Standby 840 USE 10 6 00 Januar y 2003 17 Hardware Components in a Quantum Hot Standby System Components A Q uantum Hot Standby system requires two back planes, each with at l east four slots.
Overview of Quantum Hot Standby 18 840 USE 106 00 January 2 003 The CHS 110 Hot Standby Module Topology The follow ing dia gram s hows th e mod ule’s fron t pane l, which cons ists of: LED Display F.
Overview of Quantum Hot Standby 840 USE 10 6 00 Januar y 2003 19 LED Dis play The follow ing illustrati on sh ows fiv e statu s indic ators o n the face of eac h CHS 1 10 modul e. The follow ing table sho ws the f ive s tatus i ndica tors. Error messages are d iscussed i n deta il in Com Act Error Pa tterns, p.
Overview of Quantum Hot Standby 20 840 USE 106 00 January 2 003 Funct ion Keyswitc h Beneath the LED d ispla y on t he face o f each CHS 110 contro l pane l is a fu nction keyswitc h.
Overview of Quantum Hot Standby 840 USE 10 6 00 Januar y 2003 21 1.2 Operation Modes of Operation HSBY Modes of Oper ation HSBY has three Modes o f Operatio n: 1.
Overview of Quantum Hot Standby 22 840 USE 106 00 January 2 003 Run Mode When the k eyswitch is in thi s pos ition, the contro ller is a ctive and is ei ther se rving as the Prim ary cont roller o r is capa ble of taking ov er the Primary rol e, if neede d.
Overview of Quantum Hot Standby 840 USE 10 6 00 Januar y 2003 23 1.3 Cabling Introduct ion Purpose Thi s sectio n desc ribes ca bling for CHS 110 Hot Standby modules .
Overview of Quantum Hot Standby 24 840 USE 106 00 January 2 003 Fiber Opti c Cable Cable Connections The CHS 110 H ot Standby module s are conn ected by a fiber op tic cable . The cab le has two id entica l strands . Each stra nd trans mits a s ignal in only one direc tion.
Overview of Quantum Hot Standby 840 USE 10 6 00 Januar y 2003 25 The CHS 210 Hot Standby Kit Contents of Ki t Each 140 C HS 210 00 Hot Sta ndby kit co ntains the follo wing parts.
Overview of Quantum Hot Standby 26 840 USE 106 00 January 2 003 1.4 984 HSBY and IEC HSBY Introduct ion Purpose This sec tion des cribes 98 4 HSBY and IEC HSBY.
Overview of Quantum Hot Standby 840 USE 10 6 00 Januar y 2003 27 984 HSBY 984HSBY In a 984 HSBY sys tem, the user ap plicatio n is written in 98 4 ladd er logic. HSBY mode ca n be activ ated by imple mentation of a CHS load able fu nction b lock into logic , like the earlier PL C system s used the "HSBY" loadab le func tion bloc k.
Overview of Quantum Hot Standby 28 840 USE 106 00 January 2 003 IEC HSBY IEC HSBY Architecture IEC Hot St and by me ans : Pro gram m ing an app lic ati on wi th t he c ho ic e of 5 di ffer ent IEC compli ant lan guages; FBD, LD, SFC, IL an d ST.
Overview of Quantum Hot Standby 840 USE 10 6 00 Januar y 2003 29 Architecture As sho wn belo w, Quan tum IEC Ho t Standb y inv olves: Concept Ve rsion 2.1 or gr eater Two High End Quan tum Con trollers (C PU 434 12 or CPU 534 14) The exi sting CHS Modul es and Ex ecs (CHS 1 10 00).
Overview of Quantum Hot Standby 30 840 USE 106 00 January 2 003 Application size For basic mechan isms (da ta and prog ram tran sfer), the I EC HSBY and th e 984 HSBY system op erate i n the sam e manner.
840 USE 10 6 00 Januar y 2003 31 2 Theory of 984 Ladder Logic HSBY Operation At a Glance Purpose Thi s chapter cover s the 984 Hot Stand by and its theory of operat ion.
Theory of 984 HSBY Operation 32 840 USE 106 00 January 2 003 How a 984 HSBY Syst em Works 984 Theor y Both the Prim ary and t he Stand by ba ckplanes contain a CHS 1 10 Hot St andby module. The module s moni tor their own co ntroll er CPU and co mmunica te with eac h other vi a fiber link.
Theory of 984 HSBY Operation 840 USE 10 6 00 Januar y 2003 33 System Scan Time Effect on Syste m Scan Time When the ladder l ogic pr ogram bei ng exec uted by the pr imary co ntroller is longe r than the CHS 110 -to-CHS 11 0 transfe r, the trans fer does not increas e total sy stem sca n tim e.
Theory of 984 HSBY Operation 34 840 USE 106 00 January 2 003 The norma l Hot Standby c onfigu ration contai ns: In the lo cal rack: power s upply (CPS), PLC (CPU), RIO Head (CRP 93x), Hot Standby mo d.
Theory of 984 HSBY Operation 840 USE 10 6 00 Januar y 2003 35 Example Thi s example shows the eff ect of a co nfiguratio n change fro m baselin e as shown in the Scan Time Increa se Table in PLC Scan Tim es, p. 34 . A particul ar HSBY appl ication ha s a sta ndalone scan time of 36 ms in a PL C of type CPU 424 02 .
Theory of 984 HSBY Operation 36 840 USE 106 00 January 2 003 The State RAM Transfer and Scan Time Reduce Sca n Tim e This s ection d escribes manipul ating the sta te RAM tra nsfer to re duce sc an ti.
Theory of 984 HSBY Operation 840 USE 10 6 00 Januar y 2003 37 1. Reduce th e refere nce conf igurati on to mini mum require ments (0x, 1x , 3x, 4x). Minimi zing the sta te RAM a rea is one way to redu ce sc an time.
Theory of 984 HSBY Operation 38 840 USE 106 00 January 2 003 Default Transf er Area Automatic Transf er By defa ult, th e Hot Standby system automati cally transfers the fo llowing fro m the Primary t.
Theory of 984 HSBY Operation 840 USE 10 6 00 Januar y 2003 39 The diagra m belo w shows example s of the d ata tran sfer are a for diffe rent configura tions of 3x and 4x regi st ers . T ransfer Area Example 1 If you have 3200 3x and 9600 4x regis ters, then the full allotment of 1000 3x registers will be transferred.
Theory of 984 HSBY Operation 40 840 USE 106 00 January 2 003 Customizing Options Custom State RAM T r ansfer Area If you w ant to set up a c ustom state RAM tr ansfer area , you can c ontrol you r transferred amou nts usi ng a H ot Standby con figuration exte nsion (re fer to Additiona l Guideli nes fo r IEC H ot Stand by , p.
Theory of 984 HSBY Operation 840 USE 10 6 00 Januar y 2003 41 Custom Scans Setting up Custom Scan s The follow ing block di agram sho ws h ow the s tate RA M transf er area m ight be set up using multi ple sc ans to tra nsfer a ll the data.
Theory of 984 HSBY Operation 42 840 USE 106 00 January 2 003.
840 USE 10 6 00 Januar y 2003 43 3 Theory of IEC HSBY Operation At a Glance Purpose Thi s chapter presents the The ory of Op eration for the IEC Hot Stan dby s ystem.
Theory of IEC HSBY Operation 44 840 USE 106 00 January 2 003 IEC Hot Standby Definition s Definitions The followi ng are IEC Hot Stan dby defin itions .
Theory of IE C HSBY Operation 840 USE 10 6 00 Januar y 2003 45 IEC Heap The m ost impo rtant new t erms to understand i n IEC Hot Standby are the IEC Heap, the Curren tly used IEC Heap Si ze an d the Max imum IEC H eap Size . Program Data Area The program da ta area has a defaul t size of 16 KByt e whenever a new C oncept project is creat ed.
Theory of IEC HSBY Operation 46 840 USE 106 00 January 2 003 How an IEC HSBY System Works IEC Theory Both the Prim ary and t he Stand by back planes contain a CHS 1 10 Hot St andby module. The module s moni tor their own co ntroll er CPU and co mmunica te with eac h other vi a fiber link.
Theory of IE C HSBY Operation 840 USE 10 6 00 Januar y 2003 47 System Scan Time Effect on Syste m Scan Time The effect on sys tem sc an ti me o f any H ot St andby s ystem depen ds on how much state RAM is goin g to be transferred from Pr imary to St andby .
Theory of IEC HSBY Operation 48 840 USE 106 00 January 2 003 Transf er diagr am The follow ing sh ows a transfer d iagram : Comm Diag IEC Logic Solve Comm Diag IEC Logic Solve IEC Logic Solve Diag 1 S.
Theory of IE C HSBY Operation 840 USE 10 6 00 Januar y 2003 49 Overall PLC Scan Tim e The ov erall scan tim e for the IEC HSB Y supp orting PLC type is outline d in the IEC Scan Time In creas e Table be low.
Theory of IEC HSBY Operation 50 840 USE 106 00 January 2 003 Example Thi s exampl e shows the eff ect of a confi guration c hange from ba seline as shown in the IEC Scan Time I ncreas e Table (Se e Overal l PLC Sca n Time, p. 49 ). A particula r applic ati on h as a sta nda lo ne s ca n tim e of 25 ms in a PLC of type C PU 434 12.
Theory of IE C HSBY Operation 840 USE 10 6 00 Januar y 2003 51 State Ram Tr ansfer and Scan Time Redu c e Scan Tim e The sta te RAM trans fer area co ntains all t he sta te RAM v alues that are pa ssed between the Primary and Sta ndby control lers. The size of the t ransfer area is as large as t he total size of your con troller’ s state RA M.
Theory of IEC HSBY Operation 52 840 USE 106 00 January 2 003 All State RAM trans ferr ed The fol lowing diagra m show s the stat e RAM transf er area. 0nnnnn 1nnnnn 3nnnnn 4nnnnn Where nnnnn is a mult.
Theory of IE C HSBY Operation 840 USE 10 6 00 Januar y 2003 53 Layout of completely transferr ed state RAM i n an I EC Hot Sta ndby system Layout of transferred RAM The diagr am belo w ill ustrat es t.
Theory of IEC HSBY Operation 54 840 USE 106 00 January 2 003.
840 USE 10 6 00 Januar y 2003 55 4 Planning a Quantum Hot Standb y System At a Glance Purpose Thi s chapter descr ibes h ow to pl an a Q uantum H ot Standby Syst em.
Planning a Quantum Hot Standby System 56 840 USE 106 00 January 2 003 Guidelines for Planni ng a Hot Standby System Primary and Standb y Controllers Bot h the pr imary and the s tandb y cont roller in you r Hot St andby sy stem mu st be ready to p erform a s a stan d-alone controll er in th e event th at its counte rpart fai ls.
Planning a Quantum Hot Standby System 840 USE 10 6 00 Januar y 2003 57 Electrica l Safety Precautions Safety Precautions WARNING To prot ect yours elf an d others agains t elec tric shoc k, obe y you r national elec trical code and all ap plica ble loca l code s and laws.
Planning a Quantum Hot Standby System 58 840 USE 106 00 January 2 003 Remote I/O Cable Topologies Cable Connections In each co nfig uratio n: The cab les c onnectin g the RI O head process ors to t he RI O netwo rk mus t be fitted wit h self- terminatin g F ada pters.
Planning a Quantum Hot Standby System 840 USE 10 6 00 Januar y 2003 59 A Single Cable Configurat ion Diag r am of a Single Cable Configuration The follow ing diagram s hows a singl e cable c onfig uration for the Quant um Hot Standby s ystem.
Planning a Quantum Hot Standby System 60 840 USE 106 00 January 2 003 A Dual Cable Configuration Diagram of a Dual Cable Configuration The f ollo wing di agram shows a dual cable confi gurat ion f o r the Qu antu m Hot Standby s ystem.
840 USE 10 6 00 Januar y 2003 61 5 Installation How to Install a Hot Standby System Procedure This s ectio n discus ses the proced ure for i nstal ling a new Hot Sta ndby syste m.
Installation 62 840 USE 106 00 January 2 003 The follow ing diagram i llust rates i nstall ation of a Hot St andby System. Setting Designatio n Slide Switche s The desi gnation s lide sw itch on one Ho t Standby mod ule is s et to A an d the other is set to B.
Installation 840 USE 10 6 00 Januar y 2003 63 Network Connections The followi ng dia gram illu strates th e network conn ections. Installing Coa xial Cable Link Connect the fib er lin k betwee n the H.
Installation 64 840 USE 106 00 January 2 003 Attaching th e Fiber Cable Clasp to the Cable The key t o inst alling the c able i s to alig n the b arrel, th e lock ing ring and the connecto r, as s hown in the di agram below. Aligning the Key and Lock ing Ring The table below shows ho w to align the key a nd loc king ring .
Installation 840 USE 10 6 00 Januar y 2003 65 Diagram of Aligning Key and Loc k ing R ing The d iagram below illu st rates t he ali gnmen t of the key an d locki ng ring . Attaching the Cable Turn the cable to the rig ht, so that the tab locks secure ly.
Installation 66 840 USE 106 00 January 2 003 Adding Hot Standb y Capability to an Existing Sy stem To add H ot Stand by capab ility to an e xisting Quant um syst em, yo u must install a second b ackp lane wi th module s iden tical to those in the o rigina l bac kplan e.
840 USE 10 6 00 Januar y 2003 67 6 Using a Quantum 984 HSBY System At a Glance Purpose Thi s chapter reviews th e proce dures for o peratin g a Quan tum 984 HSBY S ystem. What’ s in this Chapter? This cha pter co ntains the follo wing se ction s: Section T opic Page 6.
Using a Quantum 984 HS BY System 68 840 USE 106 00 January 2 003.
Using a Quantum 984 HSBY System 840 USE 10 6 00 Januar y 2003 69 6.1 Config uration Introduct ion Purpose Thi s sectio n desc ribes H ot Stand by confi guratio n.
Using a Quantum 984 HS BY System 70 840 USE 106 00 January 2 003 Configuri ng 984 HSBY CHS software To configure a 984 HSBY system, you must load the CHS software in to the controlle rs. The so ftware is i ncl ud ed o n a disk ett e in the H ot Stan dby k it.
Using a Quantum 984 HSBY System 840 USE 10 6 00 Januar y 2003 71 Controlling the Hot Stand by System by CHS instruction If you are upgr ading fro m a 984 Hot Standby syste m to a Quantu m system , you may port your ladd er lo gic prog ram by first de let ing the HSBY blo ck , the n rel ocatin g the program, an d then inserting a CHS i nstructio n.
Using a Quantum 984 HS BY System 72 840 USE 106 00 January 2 003 Configurat ion Extension Controlling the Hot Standby System by Configuration Extension With th e Hot Stan dby conf igur ation ext ensio.
Using a Quantum 984 HSBY System 840 USE 10 6 00 Januar y 2003 73 CHS Instruction Using CHS Instruction Segment 1 may c ontain the ladde r logi c for di agnos tics and option al Hot St andby functions , suc h as time -of-day clock u pdates .
Using a Quantum 984 HS BY System 74 840 USE 106 00 January 2 003 6.2 Using the CHS Instruction Block Introduct ion Purpose This s ection d escribes using th e CHS In struc tion Block .
Using a Quantum 984 HSBY System 840 USE 10 6 00 Januar y 2003 75 Using CHS Inst ruction Block CHS Instruction Block The co mmand registe r is d efined in t he top node of the C HS inst ructio n bloc k. The bits in this regis ter are us ed to c onf igure and con trol vari ous para me ters of the Hot Standby s ystem.
Using a Quantum 984 HS BY System 76 840 USE 106 00 January 2 003 Command Register Comma nd Register The St ate RAM Transf er Area The co mman d registe r mu st be co ntaine d within the ran ge of 4 x registe rs in the sta te RAM trans fer are a. A fixed bl ock of up to 12K words in state RAM is specifie d as the t ransfer area.
Using a Quantum 984 HSBY System 840 USE 10 6 00 Januar y 2003 77 Only 4x referen ce dat a can be p laced in the no ntrans fer area. These desig nated registers are not tra nsferred to the Standb y contro ller, thus reducing s can time.
Using a Quantum 984 HS BY System 78 840 USE 106 00 January 2 003 Elements of the Nontransfer Area Nontransfer Area The most import ant par t of the non transfe r area i s the Ho t Standby s tatus register.
Using a Quantum 984 HSBY System 840 USE 10 6 00 Januar y 2003 79 Example o f a Nontransfer Area In the exa mple, the nontransf er area b egins at regi ster 4001 0, as d efined in the middle n ode. Th e length i s 30 re gisters, a s defi ned in the bottom n ode.
Using a Quantum 984 HS BY System 80 840 USE 106 00 January 2 003 Zoom scree n of CHS Instruction Zoom Scree n When both a CHS in struc tion and the Hot Stan dby co nfiguratio n exten sion a re used, the param eters you set for the non transfer ar ea in th e con figuration exten sion scre ens m us t be id enti cal to those in the CHS bl ock.
Using a Quantum 984 HSBY System 840 USE 10 6 00 Januar y 2003 81 The Hot St andby Status Regi ster Hot Stand by Status Register The st atus regi ster i s regi ster 4001 2, the third registe r in t he nontran sfer a rea. Th e command regis ter, whic h is defi ned in the top node, has b een place d outs ide th e nontransfe r area, a s required .
Using a Quantum 984 HS BY System 82 840 USE 106 00 January 2 003 The Reverse T ransfer Regist ers Reve rse Tr ansfer You can us e the reverse tra nsfer regis ters t o transmi t diagn ostic da ta from the Standby c ontroll er to the Pri mary c ontroller.
Using a Quantum 984 HSBY System 840 USE 10 6 00 Januar y 2003 83 Reverse Transfer Logic Example A Reverse Transfer Logic Example The f ollow ing e xampl e shows I /O la dder log ic for a Prima ry cont roll er that monit ors two fault lamps a nd the reverse tra nsfer l ogic that sends status d ata from th e Standby c ontroller to the Prim ary.
Using a Quantum 984 HS BY System 84 840 USE 106 00 January 2 003 Revers e Tr ansfer Logic The lo gic in network 2 of segm ent 1 co ntains a BLKM instructi on and a STAT instructi on. The Standby e nables t he STAT. Bits 000815 a nd 000816 are contro lled by bits 15 a nd 16 in the Hot Stand by sta tus regi ster.
Using a Quantum 984 HSBY System 840 USE 10 6 00 Januar y 2003 85 6.3 U sing Configur ation Extensio n Introduct ion Purpose Thi s sectio n describ es usin g the HSBY Confi guratio n Extensi on.
Using a Quantum 984 HS BY System 86 840 USE 106 00 January 2 003 Configurat ion Extension Hot Standby Dialog The co nfig uration of the 9 84 H ot Stan dby ca n be don e w it h the H ot Sta ndb y d ial og and/or wi th the C HS instru ction of the LL98 4 ins truction l ibrary.
Using a Quantum 984 HSBY System 840 USE 10 6 00 Januar y 2003 87 Hot Standby Dialog Hot Stand by Dialog in Concep t The Hot St andby dia log is s hown be low, it c an be activate d through C onfigure Hot Standby.
Using a Quantum 984 HS BY System 88 840 USE 106 00 January 2 003 Bits i n the Hot Standby Command Register Specifying the Comma nd Register The comm and re gister is used to con trol va rious p arame ters of the Hot St andby syst em. Comma nd Register The comm and regis ter is spec ified i n the f irst entry field o f the Hot Standby dial og.
Using a Quantum 984 HSBY System 840 USE 10 6 00 Januar y 2003 89 Theref ore, the n umber you spe cify for the comman d regis ter m ust be i n the range of 4x reg isters you speci fy in the Stat e RAM area i n State RAM dialog . If you a re using th e 12K o ption, the comman d regis ter must b e one of the fi rst 9000 4 x registers .
Using a Quantum 984 HS BY System 90 840 USE 106 00 January 2 003 Keyswitch Overr ide and Run Mode Keyswitc h and Run You ma y choos e to overri de the k eyswitc h on the front pane l of th e CHS 1 10 modules for se curity or conve nienc e.
Using a Quantum 984 HSBY System 840 USE 10 6 00 Januar y 2003 91 A Software Control Example Using Softw are Control For exa mple: you enab led the keys witch overrid e and set the ope rating mode of con troll er B to Offli ne. No w the syste m is powere d up a nd you want t o put contro ller B in RUN mode.
Using a Quantum 984 HS BY System 92 840 USE 106 00 January 2 003 Standby on Logic Mismatches Logic Program To f unctio n prop erly, the Pri mary and the Stan dby cont roller i n a Hot S tandby sys tem must be solv ing an id enti cal log ic prog ram, wh ich is up date d on ever y scan by a stat e RAM da ta trans fer betwe en the two cont rollers.
Using a Quantum 984 HSBY System 840 USE 10 6 00 Januar y 2003 93 Swa p Addr ess at Switchover In a Hot Stand by sys tem, th e Modb us ports on the P rimary contro ller may have MEM addres ses i n the ran ge of 1 to 11 9. This allows an offset o f 128 for compar able ports on th e Standby control ler, with 247 th e maximum number o f addres ses.
Using a Quantum 984 HS BY System 94 840 USE 106 00 January 2 003 Transfer All State RAM "Transfer All State RAM " check bo x It is not poss ible t o d efine a spe cial State RAM or add itiona l State RAM range to be transferred if this check box is a ctivated.
Using a Quantum 984 HSBY System 840 USE 10 6 00 Januar y 2003 95 Hot Standby Status Register for Conf iguration Extension Status Register for Configuration extension Note: Bits 1 and 2 are u sed only in co njunctio n wi th a confi guratio n exte nsion .
Using a Quantum 984 HS BY System 96 840 USE 106 00 January 2 003 Advanced Options Advan ced Options button When pre ssing the Adva nced Opti ons button in the Hot Standby di alog, you ge t the opportunit y to al low dif ferent firmw are vers ions on the Prim ary an d Standby controlle r while r unning in full H ot Standb y mod e.
Using a Quantum 984 HSBY System 840 USE 10 6 00 Januar y 2003 97 Defining the Trans fer Area of State RAM Additional RAM With 984 Ho t Standb y, you ma y defi ne add itiona l stat e RAM (0x , 1x, 3x, and 4x register s) that are transf erred in groups over multiple logic scans.
Using a Quantum 984 HS BY System 98 840 USE 106 00 January 2 003 Hot Standby Dialog Usi ng the Ho t Standb y dialog , you have a great deal more flexib ility in determ ining how much or how little State RAM gets transferre d.
Using a Quantum 984 HSBY System 840 USE 10 6 00 Januar y 2003 99 User Defined Option The User D efined op tion le ts yo u specify the amo unt of e ach refere nce data t ype that you want to be tra nsferred on eac h scan. If the Transf er Addition al Stat e RAM check bo x is activate d, it al lows y ou to tr ansfer additi onal data.
Using a Quantum 984 HS BY System 100 840 USE 106 00 January 2 003 Transferri ng Addit ional Stat e RAM Data Additional Da ta If the Transfer Additional State RA M chec k box is activat ed, add itiona l State RAM could be transfe rred.
Using a Quantum 984 HSBY System 840 USE 10 6 00 Januar y 2003 101 Additional Da ta The diagram belo w illus trates tran sfer of additi onal St ate RAM d ata.
Using a Quantum 984 HS BY System 102 840 USE 106 00 January 2 003 Scan Transfer s Data Type A min imum of 512 eq uival ent w ords of each data ty pe spe cifi e d in th e Addi tion al State RAM a rea are s ent in a sc an, unl ess there are less th an 512 wo rds of that d a ta type left t o be transfe rred.
Using a Quantum 984 HSBY System 840 USE 10 6 00 Januar y 2003 103 6.4 Operation Introduct ion Purpose Thi s sectio n desc ribes H ot Stand by operat ion.
Using a Quantum 984 HS BY System 104 840 USE 106 00 January 2 003 Starting Your Hot Standby Sys tem Precondition s Be sure... The con troller you are s tarting first has b een fu lly progra mmed. The f unction k eyswi tch on the CHS 110 modu le is in the Run pos ition.
Using a Quantum 984 HSBY System 840 USE 10 6 00 Januar y 2003 105 LED Displ ay Indicators of a Properly Functioning Hot Standby Sys tem The follow ing graphic s hows LED displ ay ind icators o f a prop erly fu nctio ning Hot standby s yste m.
Using a Quantum 984 HS BY System 106 840 USE 106 00 January 2 003 Synchronizin g Time-of -Day Clocks Clock Synchr onization In a Hot St andby system , the Primary an d Standby cont rollers ha ve th eir own time- of-day clo cks. They are not s ynchroni zed.
Using a Quantum 984 HSBY System 840 USE 10 6 00 Januar y 2003 107 The follow ing diagram s hows s ynchroni zing t ime-of -day c locks. 40001 40101 CHS 4 40103 42221 AND 0001 0015 0 ADD 42221 42221 001.
Using a Quantum 984 HS BY System 108 840 USE 106 00 January 2 003 While Your System Is Running Constant In ternal Monitoring After your Hot Standb y sys tem has been s tarted a nd is running n ormall y, it wi ll continue to func tion a utoma tically.
840 USE 10 6 00 Januar y 2003 109 7 Usi ng a Quant um IEC Hot Standby System At a Glance Purpose Thi s chapter pres ents ope rating procedures for the IEC HSBY. What’ s in this Chapter? This cha pter co ntains the follo wing se ction s: Section T opic Page 7.
Using a Quantum IEC Hot S tandby System 110 840 USE 106 00 January 2 003.
Using a Quantum IEC Hot Standby System 840 USE 10 6 00 Januar y 2003 111 7.1 Config uration Introduct ion Purpose This se ction de scri bes Qua ntum IE C Hot St andby co nfigu ratio n.
Using a Quantum IEC Hot S tandby System 112 840 USE 106 00 January 2 003 Loading the Software Loading a nd Concept 2. 5 Starting w ith Concep t 2.5, th e CHS l oadable is a p art of th e Concept i nstall. If you are u sing Co nc ept 2. 5 a nd for so me rea so n th e loa dab le is de let ed, it can b e reinst alled usi ng the followi ng proc edure.
Using a Quantum IEC Hot Standby System 840 USE 10 6 00 Januar y 2003 113 Concep t Loadables Installatio n Screen The follow ing diagram s hows a Concep t loada bles ins tallat ion sc reen. The CHS loadable is now part of the Concept env ironment and may be installed into a proje ct config uration whe never need ed.
Using a Quantum IEC Hot S tandby System 114 840 USE 106 00 January 2 003 Controlling the Hot Stan dby System by Configuration Extension Configuration Extension Use the Hot St andby Concept c onfigu ra.
Using a Quantum IEC Hot Standby System 840 USE 10 6 00 Januar y 2003 115 Using the Configuration Extensions scre en The Co nfigura tion Extensio n offe rs two ch eck boxes regardi ng Ho t Stan dby. Since you are us ing th e IEC env ironm ent, ch eck the I EC Hot St andby chec k box.
Using a Quantum IEC Hot S tandby System 116 840 USE 106 00 January 2 003 7.2 Ho t Standby Dialog Introduct ion Purpose This s ection d escribes the Qua ntum Hot Standby D ialog.
Using a Quantum IEC Hot Standby System 840 USE 10 6 00 Januar y 2003 117 Hot Standby dialog Activation o f Hot Standby Dial og The Hot St andby dia log is s hown be low, it c an be activate d through C onfigure Hot Standby.
Using a Quantum IEC Hot S tandby System 118 840 USE 106 00 January 2 003 Specifying the Command Register Bits in the Hot Standb y Comma nd Register The co mmand r egist er co ntrols variou s par ame ters of the Hot St and by syste m.
Using a Quantum IEC Hot Standby System 840 USE 10 6 00 Januar y 2003 119 Hot Standby Command Register Range You may enter any numb er in t he range 1 .
Using a Quantum IEC Hot S tandby System 120 840 USE 106 00 January 2 003 Enable Keyswitch Overri de Keyswitc h Override If both b its are set to 0, a switc hover oc curs and the former Primary b ackplane g oes offline. Th e new Pri mary b ackplan e continu es to operate.
Using a Quantum IEC Hot Standby System 840 USE 10 6 00 Januar y 2003 121 Options for Software Con trol Example Option 1 Option 2 Stage Description Comment 1 Change the setting on the Hot Standby dialog. To do this, you must shut down the system and mak e the necessary cha nge in the dialog, then power up t he system again.
Using a Quantum IEC Hot S tandby System 122 840 USE 106 00 January 2 003 Advanced Options Concept 2.5 Advan ced Options button When se lecti ng th e Adva nced Op tions butt on in the Hot St andby dia .
Using a Quantum IEC Hot Standby System 840 USE 10 6 00 Januar y 2003 123 IE C H S BY System Executive Upgr ade Procedure The follow i ng tab le show s the st eps to up gra de the co ntrolle r’s ex ec uti ve in an IEC HSBY system. Note : You must first h ave both c ontrol lers runni ng in Concept 2.
Using a Quantum IEC Hot S tandby System 124 840 USE 106 00 January 2 003 Standby on Logic Mismatch Overv iew To functio n prop erly, the Pri mary and the Standby c ontroll er in a Hot S tandby system mus t be so lv ing an identi ca l pro gram , w hic h is upd ate d on ev ery sc an by a state RAM data tran sfer be tween th e two co ntrolle rs.
Using a Quantum IEC Hot Standby System 840 USE 10 6 00 Januar y 2003 125 Updating Proje ct Section Data All DATA o f a se cti on w ill be ful ly up dat ed eve ry sc an if it i s equ al to its co unterpa r t on the Prim ary co ntrolle r. Secti on DATA w ill not b e upda ted at all if it is not equ al to its count erpart o n the Prima ry con troller.
Using a Quantum IEC Hot S tandby System 126 840 USE 106 00 January 2 003 Updating Proje ct Glob al D ata With a logic mi smat ch, pro ject glob al data will b e updat ed with every scan. Global data that d o not e xist on b oth contro llers is not updated.
Using a Quantum IEC Hot Standby System 840 USE 10 6 00 Januar y 2003 127 Swapping Addresses at Switchover Modbus Po rt Swa p Addr ess at Switchover In a Hot S tandby syst em, the M odbus ports on t he P rimary co ntrolle r may have MEM addres ses i n the ran ge of 1 to 11 9.
Using a Quantum IEC Hot S tandby System 128 840 USE 106 00 January 2 003 IP Address Swapping at Switchov er The Quan tum netw ork opti on mo dule NO E 771 (Eth ernet T CP/IP) sup ports add ress swappi ng at sw itchover when us ed in a H ot Stan dby system .
Using a Quantum IEC Hot Standby System 840 USE 10 6 00 Januar y 2003 129 7.3 State RAM Introduct ion Purpose Thi s sectio n desc ribes Q uantum IEC Hot Sta ndby St ate RA M.
Using a Quantum IEC Hot S tandby System 130 840 USE 106 00 January 2 003 Nontransfer Area of State RAM Nontransfer Area The nontra nsfer a rea con tains the Hot S tandby status regis ter, whic h is used t o monit or the stat es of b oth co ntrolle rs.
Using a Quantum IEC Hot Standby System 840 USE 10 6 00 Januar y 2003 131 The follow i ng b loc k dia gram s hows ho w the n ont rans fe r area exis ts w i th re sp ec t to the rest of the sta te RAM t ransfer area. Note: The command register must not be placed in the non transfer are a.
Using a Quantum IEC Hot S tandby System 132 840 USE 106 00 January 2 003 Hot Standby Status Register Hot Standby Status Regis ter The third reg ister in the nontra nsfer area is the H ot Standby stat us register. Use th is register to moni tor the curre nt ma chine status of the Prim ary and St andby controlle rs.
Using a Quantum IEC Hot Standby System 840 USE 10 6 00 Januar y 2003 133 Memory Partit ion IE C H S BY Registers The num ber of IEC HSBY Registers (size o f transfer buffe r) is set to the max imum wheneve r the IEC Hot Standb y configura tion exten sion is act ivated the fir st time for a particul ar proje ct.
Using a Quantum IEC Hot S tandby System 134 840 USE 106 00 January 2 003 State RAM Si ze State RAM Size Once the num ber of IEC HSBY Registers ha s been set, you may deact ivate the IEC Hot Stand by confi guratio n extensi on and activat e it ag ain later, t he num ber of IEC HSBY registers rem ains the same .
Using a Quantum IEC Hot Standby System 840 USE 10 6 00 Januar y 2003 135 7.4 Section Transfer Control Section Tr ansfer Control Section Tr ansfer Control Description A new fun ction has been added with Conc ept 2.
Using a Quantum IEC Hot S tandby System 136 840 USE 106 00 January 2 003 The sec tion data that w ill not be tra nsferred w hen its Updat e (Hot Standby) contro l is set to no Upda te are: inter nal s.
Using a Quantum IEC Hot Standby System 840 USE 10 6 00 Januar y 2003 137 Transfer Status Byte The Sec tion Hot St andby Transfe r Status Byte ca n be rea d by an operat or panel or by Data Ac quisi tion Syst em.
Using a Quantum IEC Hot S tandby System 138 840 USE 106 00 January 2 003 7.5 Operation Starting Your Hot Standby Sys tem Precondition s Be sure the con troller you are st arting f irst has b een fully.
Using a Quantum IEC Hot Standby System 840 USE 10 6 00 Januar y 2003 139 Start Standby The fol lowi ng table s hows th e step s to s tarting Standby. Step Ac ti on 1 Start the Standby controller.
Using a Quantum IEC Hot S tandby System 140 840 USE 106 00 January 2 003 7.6 No rmal O perat ion Introduct ion Purpose This s ection d escribes Quantum IEC Hot Sta ndby n ormal ope ration .
Using a Quantum IEC Hot Standby System 840 USE 10 6 00 Januar y 2003 141 Memory/Scantime opt imization IEC State RAM Map An illustratio n of the IEC St ate RAM M ap.
Using a Quantum IEC Hot S tandby System 142 840 USE 106 00 January 2 003 IEC app lication data To maintain co nsist ency of th e IE C applic ation ’s data b etwee n the Prima ry and Standby c ontroll ers the IEC h eap is transf erred throug h a res erved area in the 3x- register ra nge , th e s o c alled IEC HSBY Re gis te r s.
Using a Quantum IEC Hot Standby System 840 USE 10 6 00 Januar y 2003 143 A screens hot of t he Memory Pre dictio n dialog is sh own bel ow. IEC Memory Available: Free: Used: System: Section Code: Sect.
Using a Quantum IEC Hot S tandby System 144 840 USE 106 00 January 2 003 Memory Statist ics Memory Stati stics HSBY (onli ne) us ed for downs izing the nu mber of 3x -Registers for IEC Hot St andby da ta.
Using a Quantum IEC Hot Standby System 840 USE 10 6 00 Januar y 2003 145 Synchronizing Ti me of Day Clocks Primary and Secondar y controller tim e- of-day clo cks In a Ho t Standby system , al though th e Prim ary an d Second ary cont rollers have t heir own time-o f-day clocks, t hey are not implic itly synchroniz ed.
Using a Quantum IEC Hot S tandby System 146 840 USE 106 00 January 2 003 While Your System Is Running Constant In ternal Monitoring After your Hot Standb y sys tem has been s tarted a nd is running n ormall y, it continue s to fu nction autom atically .
840 USE 10 6 00 Januar y 2003 147 8 Additional Guid elines for IEC Hot Standby At a Glance Purpose Thi s Chapte r disc usses o ptimi zing a n IEC app licat ion to run bett er in an IEC Hot Standby en vironm ent, a nd speci fical ly, how to sav e data me mory.
Additional Guidelines for IEC Hot Standby 148 840 USE 106 00 January 2 003.
Additional Guidelines for IEC Hot Standby 840 USE 10 6 00 Januar y 2003 149 8.1 General Application Requirements Introduct ion Purpose Thi s sectio n describ es genera l appl ication re quiremen ts for a n IEC Hot Sta ndby syste m.
Additional Guidelines for IEC Hot Standby 150 840 USE 106 00 January 2 003 Memory Savings Memory Savin gs The reasons that me mory savings are im portant to IEC Hot S tand by are: The fu ll amou nt of dat a memory i s restri cted t o what th e IEC HS BY Regist er can be set t o, which can n ever exceed 64K word s (128K).
Additional Guidelines for IEC Hot Standby 840 USE 10 6 00 Januar y 2003 151 Memory Statistic s Memory Statistics The followi ng sc reen show s memo ry sta tistic s.
Additional Guidelines for IEC Hot Standby 152 840 USE 106 00 January 2 003 Data Memory, Continued Thi s val ue alo ne is not en ough to verify whe ther or not the appli cation fits, since we need to k now how many IEC HSBY Re gisters (3x) ca n be reserved to carry the data from the Pri mary t o the Standb y con troller .
Additional Guidelines for IEC Hot Standby 840 USE 10 6 00 Januar y 2003 153 Memory Partit ion Memory Partition The followi ng screen shows a PLC M emory Partitio n.
Additional Guidelines for IEC Hot Standby 154 840 USE 106 00 January 2 003 IEC Applicatio ns Optimizatio n, Continued 1. There are 64K wor ds of state RAM as a ma ximum for I EC HSBY Re gisters i n an IEC Hot Sta ndby applicati on.
Additional Guidelines for IEC Hot Standby 840 USE 10 6 00 Januar y 2003 155 8.2 State RAM Efficie nt Use of State RAM Configured Stat e RAM Registers Since in I EC Hot St andby, al l the c onfigur ed .
Additional Guidelines for IEC Hot Standby 156 840 USE 106 00 January 2 003 Configured Sta te RAM Registers, Continued With Con cept 2 .2 the mirror b uffer do es not exist an ymore , but it ’s sti ll worth not having s ignifi cantly m ore st ate RA M refere nces co nfigure d than actually used .
Additional Guidelines for IEC Hot Standby 840 USE 10 6 00 Januar y 2003 157 8.3 Efficiency Ti ps Introduct ion Purpose Thi s sectio n describ es effic iency tip s for th e IEC Hot St andby .
Additional Guidelines for IEC Hot Standby 158 840 USE 106 00 January 2 003 Use Constants Instead of Equal Lite rals Equal Literals In th e diag ram be l ow, wh en mul ti ple E FB inst ances use th e same fix ed val ue as inpu t, th ey are using equal liter a ls.
Additional Guidelines for IEC Hot Standby 840 USE 10 6 00 Januar y 2003 159 Use Constants Instead of Open Inputs Programm ed Logic The num ber of unuse d pins s hould be redu ced to the ab solute mi nimu m, so as to not wast e any memo ry for hidd en all ocated memory that is used nowhere .
Additional Guidelines for IEC Hot Standby 160 840 USE 106 00 January 2 003 Programm ed Logic, Conti nued The only prob lem w ith logi c prog rammed l ike th at is, for every o pen pi n there is as much m em ory al loc at ed as it s data ty pe requir es.
Additional Guidelines for IEC Hot Standby 840 USE 10 6 00 Januar y 2003 161 Programmed Logic Reduce DFB Instan ces Every DFB insta nce cons umes a c ertain amount o f overhead data m emory, whi ch grows wit h the number of input and output pins.
Additional Guidelines for IEC Hot Standby 162 840 USE 106 00 January 2 003 Reduce the Use Of Complex Data Str uctures Reduce Use of Complex Data Structures Usuall y, when comp lex data s tructu res are used, the probab ility that ea ch of i ts members ar e actual ly used is f airly lo w.
840 USE 10 6 00 Januar y 2003 163 9 Ethernet Hot Standby Solution At a Glance Purpose Thi s chapter describ es configuri ng and then usi ng the Hot Stan dby solution with the NOE 771xx product l ine whic h suppo rts Ether net com munica tion.
Ethernet Hot Standby Solution 164 840 USE 106 00 January 2 003 Overview of Hot Standby Soluti on for NOEs Please N ote The Quantum Hot Standby system s upports up to four NOE 771 Ethernet connecti ons.
Ethernet Hot Standby Solution 840 USE 10 6 00 Januar y 2003 165 All clien t/serve r service s (I/O Sca nner, Glo bal Dat a, Messa ging, FTP, SNM P, and HTTP) continu e to run af ter the sw itchover from the old to the n ew Primary NOE. Hot Standby and NOE Module Functional ity The NOE 771 family p rovid es dif ferent Ethern et servic es.
Ethernet Hot Standby Solution 166 840 USE 106 00 January 2 003 Hot Standby Topology Hot Standby Interconne ction The fol lowing diagra m sho ws a Hot St andby syst em the rel ations hip be tween th e two redu nda nt sy ste ms.Two C H S 1 10 mo dules ar e conn ec ted v ia a fibe r op tic l ink .
Ethernet Hot Standby Solution 840 USE 10 6 00 Januar y 2003 167 NOE Configuration and Hot Standby TCP/IP Configuration Whe n an NOE go es in to servic e the first time , the NOE at tempts to get it s IP Add ress from a BOOTP server. If no BOOTP serv er is available , the NOE deriv es its IP Add ress f rom it s M AC ad dres s.
Ethernet Hot Standby Solution 168 840 USE 106 00 January 2 003 IP Address Assignment Configuring th e NOE The N OE ca n be co nfig ured to work i n con junct ion wi th th e Hot S tand by cont rolle r. Since the Primary an d Secon dary con trollers must ha ve an identica l configu ration, the confi gured IP Addresses will be th e same.
Ethernet Hot Standby Solution 840 USE 10 6 00 Januar y 2003 169 NOE Operating Modes and Hot Standby The NOE Modes The NOE mo des are Primary Mode The Ho t Standb y stat e is prim ary, an d all s ervices are ac tive. Secondary M ode The Hot Standby state is standby, a nd all server services are e xcept DHCP.
Ethernet Hot Standby Solution 170 840 USE 106 00 January 2 003 Power-Up and IP Address Assign ment The proce ss of powe ring up affect s the NO E’s IP Addre ss assi gnmen t. To clari fy what hap pens during a pow er-up, th e foll owin g two se ction s des cribe t he power -up effect s on IP Addre ss as signme nt and E thernet servic es.
Ethernet Hot Standby Solution 840 USE 10 6 00 Januar y 2003 171 Power-Up an d Ethernet Services The proces s of pow ering up affects the statu s of cli ent/se rver servi ces. To c larify what hap pens d uring a po wer-up , the fo llowin g section desc ribes the powe r-up effects on the Eth ernet serv ices.
Ethernet Hot Standby Solution 172 840 USE 106 00 January 2 003 Additional Switchover Information The follow ing list prov ides a dditio nal inform ation about the NOE’ s IP ad dressing process resulting from a Hot Stand by swit chover. Some MST R/IEC Func tion bl ocks wil l not com plete thei r trans action as a resu lt of th e IP Add ress s wap.
Ethernet Hot Standby Solution 840 USE 10 6 00 Januar y 2003 173 Address Swap Times Description The followi ng tabl e detai ls what the "ti me for a n Addres s swap " compri ses, s uch as the time t o close c onnecti ons, ti me to swap IP addre sses, o r time t o establi sh conne ctions.
Ethernet Hot Standby Solution 174 840 USE 106 00 January 2 003 Network Eff ects of Hot Standby Solution Overv iew The Hot Stan dby solut ion is a powerful fe ature of NOEs, a fea ture that increases the reliabili ty of y our in stalla tion.
Ethernet Hot Standby Solution 840 USE 10 6 00 Januar y 2003 175 I/O Scanning Service The I/O Scanning provides the re petitive e xchange of data with rem ote TCP/I P nodes I/O device s.
Ethernet Hot Standby Solution 176 840 USE 106 00 January 2 003.
840 USE 10 6 00 Januar y 2003 177 10 Maintenance At a Glance Purpose Thi s chapter discuss es main tenance p rocedu res for the HSBY system . What’ s in this Chapter? This cha pter co ntains the follo wing se ction s: Section T opic Page 10.1 Health of a Hot Standby System 179 10.
Maintenance 178 840 USE 106 00 January 2 003.
Maintenance 840 USE 10 6 00 Januar y 2003 179 10.1 Health of a Hot Standby Sys tem Introduct ion Purpose Thi s sectio n desc ribes ch ecki ng the health of a Hot Standby Sy stem.
Maintenance 180 840 USE 106 00 January 2 003 Verifyi ng Health of a Hot Standby System Health Messages The Ho t Standby modules excha nge a h ealth me ssage a pproxima tely ev ery 10 ms. If the Primary has an error, the Standby is noti fied and as sume s the Prim ary role.
Maintenance 840 USE 10 6 00 Januar y 2003 181 Additional Checks Checking o n a Redundant Power Supply If you hav e a red undant power s upply, yo u may use the STAT bloc k to che ck it s operation. The red undant power supply must be I/O mappe d for its s tatus to be display ed.
Maintenance 182 840 USE 106 00 January 2 003 Safety Precautions Befo re you begin, tak e the followin g safety precautio ns: WARNING ELECTRIC SHOCK HAZARD To protec t yoursel f and o thers a gainst el ectric s hock, allow n o one to touch en ergized h igh v oltage ci rcuits (su ch as 11 5V AC).
Maintenance 840 USE 10 6 00 Januar y 2003 183 10.2 Errors Introduct ion Purpose Thi s sectio n will h elp y ou dete rmine co mpone nt fail ure and causes .
Maintenance 184 840 USE 106 00 January 2 003 Startup Errors LED Display for a Startup Error When the H ot Standb y sys tem dete cts a mismatc h betwe en the P rimary and Standby c ontroll ers, it rep orts a st artup error.
Maintenance 840 USE 10 6 00 Januar y 2003 185 Communications Errors LED s If the CHS 110 module dete cts a comm unica tions error , the LE Ds disp lay th e following p attern: LED disp lay for a c omm unicatio ns error. Trouble shooting 1. Be sure the fi ber opt ic cable s are c onnec ted pro perly and funct ioning correc tly 2.
Maintenance 186 840 USE 106 00 January 2 003 Board Level Errors PROM, RAM, UART Board le vel errors incl ude PROM che cksum, RAM data , RAM add ress a nd UAR T errors.
Maintenance 840 USE 10 6 00 Januar y 2003 187 10.3 Fa ilur es Introduct ion Purpose Thi s sectio n help s you de termine compon ent fai lure an d causes .
Maintenance 188 840 USE 106 00 January 2 003 Detecting Failures i n a Hot St andby System Main Components of the Prim ary Backplane If one of th e mai n compon ents of th e Prima ry backp lane fails , con trol shifts to the Standby. If a compo nent fa ils in the Standb y backp lane, the St andby goes offline.
Maintenance 840 USE 10 6 00 Januar y 2003 189 Detecting Failures i n the Primary Backplane Trouble shooting Components To d etermi ne which c omponen t faile d, compa re the statu s of th e control le.
Maintenance 190 840 USE 106 00 January 2 003 Detecting Failur es in the Standby Backplane Trouble sho oting Components To d etermi ne whic h compo nent faile d, compa re the s tatus of the con troller, Hot Standby m odule and RIO he ad to th e chart be low.
Maintenance 840 USE 10 6 00 Januar y 2003 191 Failure of Fiber Link from Primary Transmit to Standby Receiver Fiber Optic Cable Replac e the cabl e and restart t he control ler. The unit sho uld ret urn to Sta ndby mode. If i t does not, cyc le the power on the Stan dby unit.
Maintenance 192 840 USE 106 00 January 2 003 10.4 Replacement Introduct ion Purpose This s ectio n descri bes rep lacing a Hot S tandby module. What’ s in this Section? Thi s sect ion con tains the .
Maintenance 840 USE 10 6 00 Januar y 2003 193 Replacing a Hot Standby Module Hot Swap and the Hot Stand by System Hot swapp ing any k ey modu le in the Primary or Stand by back plane forces tha t backplan e offli ne. Wh en the modul e is in th e Prima ry bac kplane, t his c auses switch over .
Maintenance 194 840 USE 106 00 January 2 003 Changing the Program and Performing a Progra m Update Updating the Primary and Standb y The program incl udes the confi guratio n table , I/O m ap, confi gurati on exte nsion s, segment schedul er, all .EXE lo adabl es and th e entire state RAM, inclu ding use r logic.
Maintenance 840 USE 10 6 00 Januar y 2003 195 Before You Begin: To downl oa d a ne w pro gram to y our Prim ary co ntro ll er, y ou m ust s top the Stan dby con t roll er as we ll. The Standby CHS 110 modul e must be in Off Line mode. Ma ke an y cha nges t o the program.
Maintenance 196 840 USE 106 00 January 2 003 Updating Standb y Proced ure The followi ng tab le demon strates ho w to upd ate the Standby pro cedure . Step Action 1 Put the Prima ry controller in Run mode. Be sure the S tandby controller is still stopped and Off Line.
Maintenance 840 USE 10 6 00 Januar y 2003 197 4 Turn the key to the mode you want the Standby unit t o be in after the update, Run or Off Line. Result: The amber Standby indicator begins t o blink. 5 Release the update button. Result The Primary controller begins copying its full program to the Standby.
Maintenance 198 840 USE 106 00 January 2 003 Updating PLC System Executives in a 984 HSBY System Updating PLC System Executive s Bit 12 in the H ot Standby command re gister can be se t to 1 to facili.
Maintenance 840 USE 10 6 00 Januar y 2003 199 Steps to Upgrad e PLC executi ves while Hot Standby is running Zoom or RDE Step Ac ti on 1 Call up the Hot Standby command register, eit her in a Zoom screen or in the RDE. If you are using the Zoom screen, select the Without Stopping option for bit 12.
Maintenance 200 840 USE 106 00 January 2 003 Updating PLC System Executives in an IEC HSBY System Updating PLC System Executive s In a Pre C oncept 2.5 IEC Ho t Standby Sy stem it’ s not p ossible to update the PLC system exec utives w ithout s hutting down th e proce ss.
Maintenance 840 USE 10 6 00 Januar y 2003 201 10.5 Testing Forcing a Switchover Testing a Hot Standby Switchover To test your Ho t Standb y syste m, you m ay forc e a swi tchov er manual ly or t hrough software. Forcing a Switchover Manually Take the f ollow ing step s to fo rce a s witcho ver ma nually.
Maintenance 202 840 USE 106 00 January 2 003 5 Confirm that the keyswitch on bot h Hot Standby modules has not been overridden by software. After Taking the Primary Con troller Offl ine 6 Turn the key on the Primary Hot Standby module to Off Line. Result : Standby should now be functi oning as the Primary controller.
Maintenance 840 USE 10 6 00 Januar y 2003 203 8 Return the key on the original Primary unit to the R un position. The Standby indicator should come on.
Maintenance 204 840 USE 106 00 January 2 003 Forcing a Switchover Through Software You can fo rce a s witcho ver us ing the RDE or, if you ha ve pro gramm ed a CHS instructi on in lad der lo gic, a Zo om screen.
840 USE 10 6 00 Januar y 2003 205 11 Specifications for CHS 110 Hot Standby Specifications Specif icati ons for CHS 110 Hot Standby Electrical Electrostatic Discharge (IEC 801-2) 8 kV air/ 4 kV contac.
Specifications for CHS 110 Hot Standby 206 840 USE 106 00 January 2 003.
840 USE 10 6 00 Januar y 2003 207 Appendices Appendices for Quantum Hot St andby Planning an d Install ation Guide At a Gla nce The appen dices for the Qu antum H ot Stand by Pla nning and Instal lation Guid e are included here.
Appendices 208 840 USE 106 00 January 2 003.
840 USE 10 6 00 Januar y 2003 209 A Com Act Error Patterns At a Glance Purpose Thi s Appendix d escribes erro r pattern s for the HSBY. What’ s in this Chapter? This cha pter contai ns the following.
Com Act Error Patt erns 210 840 USE 106 00 January 2 003 CHS 110 Hot Standby Module Error Patterns CHS 110 Error Patterns The fo llow ing ta ble sho ws the n umbe r of tim es the Com Ac t indi cator b links for ea ch type of err or and t he cod es poss ible for th at group (all cod es are in hex).
Com Act Error Pattern s 840 USE 10 6 00 Januar y 2003 211 CRP Remote I/O Head Processor Er ror Patterns Error Patterns The followi ng tabl e show s error patte rns.
Com Act Error Patt erns 212 840 USE 106 00 January 2 003 8 8002 flash prog / erase error 8 8003 unexpected executive return Number Blinks Code Error.
840 USE 10 6 00 Januar y 2003 213 B Fiber Optic Ca ble Guide At a Glance Purpose Thi s Appendix desc ribes sp ecifi cation s for the f iber op tic ca ble.
Fiber Optic Cable Guide 214 840 USE 106 00 January 2 003 Fiber Opti c Cable Recom men- dations Sch neider Electri c recomm ends the use of up to 1 k m of 62.5/ 125 gra ded in dex, duplex, multim ode g lass fiber for all appli catio ns. M ost 62 .5/125 cabl es are rated at 3.
Fiber Optic Cable Guide 840 USE 10 6 00 Januar y 2003 215 Other Tool s Suggested Tools inclu de: Vendor Part Number Description 3M (photodyn e) 9XT Optical Source Driver (hand-held, requires light sou.
Fiber Optic Cable Guide 216 840 USE 106 00 January 2 003 Other Tools Other Too ls S ugge sted t o ols i nc lud e Vendor Part Number Description 3M (Photody ne) 9XT Optical Source Driver (hand-held, re.
840 USE 10 6 00 Januar y 2003 217 C ProWORX Nxt Configurati on ProWORX Nxt Hot Standby Configurati on Extension Description Use the Hot St andby Configu ration Ex tension dialo g to spec ify Hot Standby configura tion pa rameters f or a Qu antum H ot Stand by Syste m.
ProWORX Nxt Configuration 218 840 USE 106 00 January 2 003 Configuration Extensions Dialog Scree n Go to the ProW ORX Configura tion Exten sions Dia log Screen .
ProWORX Nxt Configuration 840 USE 10 6 00 Januar y 2003 219 Field and functions The followi ng tabl e descri bes the fu nctions of the fi elds of the <co nfig exte nsion s> <Hot Stand by (Qua.
ProWORX Nxt Configuration 220 840 USE 106 00 January 2 003 Comma nd/ Status Regis ters dialo g screen Go to the ProWORX C omman d/Status R egisters Dialog Screen.
ProWORX Nxt Configuration 840 USE 10 6 00 Januar y 2003 221 Field and functions The followi ng tabl e descri bes the fu nctions of the fi elds of the Co mmand/Sta tus Reg ister s dial og scr een: Fiel.
ProWORX Nxt Configuration 222 840 USE 106 00 January 2 003 Executive Upgrade Switch Use to specify if the PLC has to be stopped to download new executive to PLC.
C B A 840 USE 10 6 00 Januar y 2003 223 Numerics 984 HSB Y, 27, 67 A advanc ed opt ions, 96 C cable diagram s, 59 distanc es, 5 6 topolog ies, 58 CHS 110 H ot Standby modul e, 16, 28, 32 , 46 startup,.
Index 224 840 USE 106 00 January 2 003 H health mess age, 18 0 Hot Sta ndby Theory o f Ope ration, 164 Hot Sta ndby kit , 24 Hot St andby statu s regi ster , 78, 13 2 Hot Standb y syste m cable diagr .
Index 840 USE 10 6 00 Januar y 2003 225 stat e RAM tran sfer ar ea defi ne d, 7 6 stat us regist er, 94 switch over auto ma ti c , 1 08 swapp ing ad dress es, 93 system s can time , 33, 4 7 T time -of.
Index 226 840 USE 106 00 January 2 003.
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