Momentum Modbus Plus 170 PNT Series manual

31002940.0 0 170 PNT Series Modbus Plus Communication Adapters for Momentum User Guide 870 USE 10 3 00 Version 2. 0 3100 29 40 00[...]

2 870 US E 103 00 May 2 001[...]

3 Tabl e of Co nt en ts About the Book . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Chapter 1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 At a Glanc e . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7[...]

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870 USE 10 3 00 Januar y, 2001 5 About the Boo k At a Glance Document Sc ope This man ual de scribe s the functi onalit y of th e 170 PNT Series Modbu s Plus Commun ic ati on Adap ters . The fol lowing info rmatio n is a n introduc tion to this manual: Function: The Modbu s Plus Comm unicat ion Ada pters c an be conne cted to any Mome ntum I /O bas[...]

6 870 US E 103 00 May 2 001 Product Related Warnings Sch neider Elec tric a ssumes n o res ponsibi lity for an y er rors th at m ay appe ar in this documen t. If yo u have any s ugges tions for im provemen ts or a mendm ents o r have found errors in th is pub licat ion, pl ease noti fy us . No part of this documen t may be reprodu ced in any f orm [...]

870 USE 10 3 00 May 20 01 7 1 Introduction At a Glance Purpose Thi s cha pter giv es an ov ervie w of the Mome ntum M odbus Plus Co mmun ication Adapter mod els 1 70 PNT 11 0 20 an d 170 PNT 160 2 0 and d escribes their sta tus in di cat o rs, ad dres s switch es, po rts a nd cabl ing. What’ s in this Chapter? This cha pter co ntains the follo wi[...]

Introduction 8 870 US E 103 00 May 2 001 Product Overvi ew Overv iew Th is sect ion pr ovid es an overv iew o f t he fe atur es and funct ion of the Mo mentu m Mod bus Pl us C o mmun ica ti on Ad apt ers. Funct ion The Modbu s Plus C ommuni cation Adapters can be connec ted to an y Mom entum I/ O bas e to c reate a functional I /O modul e. The ad a[...]

Introduction 870 USE 10 3 00 May 2001 9 Environm ental Specif ication The adapt er con forms to th e enviro nmental sp ecific ation for th e I/O b ase upon w hich it is mou nted. For furthe r informat ion refer to the Mome ntum I/O Bases Use r Manua l, part num ber 870 USE 002 0 0 .[...]

Introduction 10 870 US E 103 00 May 2 001 Statu s Indicator s Overv iew Th is sec tion descri bes the s ta tus indica tor s for ea ch mo del, g ives a diagr am of t he indicato rs, and expla ins how to interpr et the i ndicator p atterns. Indic ators Each mod el has a front panel indic ator showin g its network communica tion statu s. The du al-cab[...]

Introduction 870 USE 10 3 00 May 2001 11 Modbus Pl us Channel Error Indica tors Model 170 PNT 1 60 20 display s the foll owing error i ndicator p atterns: Indicator (Red) Status Channel A Error Commun ications error at network port A . Channel B Error Commun ications error at network port B .[...]

Introduction 12 870 US E 103 00 May 2 001 Address Switches Overv iew This sect ion describes the addres s switche s and explains how to use the m to set the modul e addre ss. Two R ota ry Switches Each M odbus Plu s Co mmunic ation Adapter h as two ro tary sw itches on the lower left portion of the fron t panel. Thes e switc hes are u sed to set th[...]

Introduction 870 USE 10 3 00 May 2001 13 Examp le of Node Addr ess Assign ment The fig ure below shows typical addres s assi gnments for a ne twork with one control ler an d four c ommunic ation adapte rs. Mod bus Plus Communication Adapters with I/O Bases Node 1 Node 4 Node 2 Node 5 Node 3 Progr ammabl e Contr oller with Mo dbus Plus Port (Assigne[...]

Introduction 14 870 US E 103 00 May 2 001 Setting the Switches The fig ure below illu strates how to set a Modbu s Plus Node Address. Do not inst all any adapter unless yo u have set it s Modbus PLus address f or your applicati on. 1 3 0 9 2 6 4 5 8 7 1 3 0 9 2 6 4 5 8 7 1 3 0 9 2 6 4 5 8 7 1 3 0 9 2 6 4 5 8 7 See your network administator to get t[...]

Introduction 870 USE 10 3 00 May 2001 15 Ports and Cabling Over view This sec tion provide s informatio n about ports and cabling for the Momen tum Modbu s Plus C ommunic ation Adapter s. Ports Model 17 0 PNT 1 10 20 h as one Modb us Plu s port for connec tio n to a n etwork with a single trunk cable. Model 170 PN T 160 20 has two port s for connec[...]

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870 USE 10 3 00 May 2001 17 2 Assembling a Communications Adapter and I/O Base At a Glance Purpose Thi s chapter explains how a Comm unicati on Adapter con nects w ith an I/O base, how to ass emble a m odule, and how to labe l the ass embled m odule. It also i nclud es a proce dure for disa ssembling a module . What’ s in this Chapter? This cha p[...]

Assembling Adapter and I/O Base 18 870 US E 103 00 May 2 001 Connections Bet ween the Adapter a nd I/O Base Overv iew This se ction expl ains the conn ections be tween a Com municat ion Adapter a nd an I/ O base. Physi cal Connections A C ommuni cation Adapter ca n be snapped directly onto a Momentu m I/O base, maki ng con nections at three poin ts[...]

Assembling Adapter and I/O Base 870 USE 10 3 00 May 2001 19 Assembling the I/O Base and the Adapter Over view This se ction conta ins sa fety prec aution s for hand ling co mp onents and a pro cedure for assem bling an I/O base and an adapte r. Procedure: Assemblin g an I/O Base and an Adapter Follow t he steps in the table belo w to assembl e an I[...]

Assembling Adapter and I/O Base 20 870 US E 103 00 May 2 001 3 Align the two plastic snap extensions on the Adapter with the slots on the sides of the I/O base. The ATI connectors will automatically line up when the uni ts are in this position. The two devices should be oriented su ch that their communication ports are facing out on the back side o[...]

Assembling Adapter and I/O Base 870 USE 10 3 00 May 2001 21 Labeli ng the Assembled Mod ule Over view A front p ane l l abe l is supplied with each I/O b as e. The us er should fill out the labe l and aff ix it t o the front p anel of the a dapter. Wha t Goes on the La bel? The user s hould fill o ut the labe l to identify the fi eld wiri ng connec[...]

Assembling Adapter and I/O Base 22 870 US E 103 00 May 2 001 Disassembling an Adapter from an I/ O Base Overv iew Th is se ct ion conta ins safet y prec aut ions a nd a p roce dure f or di sass embli ng an ad apter f rom an I/O base. Tools Required A flat-he ad sc rew driv er may be ne eded to disa ssemble the unit. Disas sembling an Adapter fro m [...]

Assembling Adapter and I/O Base 870 USE 10 3 00 May 2001 23 3 Use a screwdriver to push the c lips on both sides of the adapter inward, as shown in the ill ustration below. 4 Lift off the adapter. Step Ac tion[...]

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870 USE 10 3 00 May 2001 25 3 Using M odbus Plus for D istributed I/O Servic ing At a Glance Purpose Thi s cha pter explains how best to c onfigure a network for effi cient servi cing o f distrib uted I/ O. What’ s in this Chapter? This cha pter co ntains the follo wing topics: Topic Page Strategies for Distributed I/O Serv ici ng 26 Network Conf[...]

Modbus Plus for DIO Servicing 26 870 US E 103 00 May 2 001 Strategi es for Distributed I/O Servicing Overv iew Modbus Plus network s can b e used to se rvice multi -purpose c ontrol appli cations, or they can be organ ized for the most ef ficient serv icin g of d istribu ted I/O devices. This secti on co mpares the two approaches. Network Funct ion[...]

Modbus Plus for DIO Servicing 870 USE 10 3 00 May 2001 27 Network Configurat ion Over view This sec tion contain s guideline s f or configu ring a Mo dbus Pl us netw ork for distrib uted I/ O serv icing. Limit Types of Device s on Network To ensure determinist ic timing, the network shou ld consist of jus t one pro grammabl e control ler node a nd [...]

Modbus Plus for DIO Servicing 28 870 US E 103 00 May 2 001 Modbus Plus Network Layouts Overv iew This sec tion p rovide s two ex amples of Mod bus Plus net work layouts using com muni cati on ad apte rs in a dist r ibu t ed I /O cont rol a pplic ati on. Note that on ly one programm able contro ller and the req uired I/O nodes a re present in this k[...]

Modbus Plus for DIO Servicing 870 USE 10 3 00 May 2001 29 Dual Cable Examp le The exam ple below ill ustrates a du al cable co nfiguration. Networ k T r unk Cab le A Networ k T r unk Cab le B Programmable Controller with Modbus Plu s Redun dant Network Option Ad apt er Node 1 Node 2 Node 3 170 PNT 160 20 with I/O b ases[...]

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870 USE 10 3 00 May 2001 31 4 How Com munication Adapters Handle Messages At a Glance Purpose Thi s cha pter descr ibes how messa ges are defin ed in t he app licati on and how mess ages ar e trans acted on the network . What’ s in this Chapter? This cha pter co ntains the follo wing topics: Topic Page How Message s Are Defined in the Application[...]

Communication Adapter Message Handling 32 870 US E 103 00 May 2 001 How Messages Are Defined in the Application Overv iew This sec tion d escribes where and h ow mes sages are de fined in the applicat ion. Pee r Co p T abl e The us er de fin es I /O m es sa ge t rans ac tio ns in th e Pe er Cop table of the c on t rol ler. Entries to the tabl e are[...]

Communication Adapter M essage Handling 870 USE 10 3 00 May 2001 33 How Messages are Transacted Over view This sec tion expl ains how a Commun ication Ad apter relay s informa tion betwee n its I/O base and a program mable co ntroller. The Right to Tran smi t A token frame is pas sed f rom nod e to no de in a rotati ng address s equen ce. Th e node[...]

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870 USE 10 3 00 May 2001 35 5 Communication Access Registers At a Glance Purpose Thi s cha pter descr ibes the t hree types of communic ation a ccess r egisters. What’ s in this Chapter? This cha pter co ntains the follo wing topics: Topic Page Overview of Register Types 36 Data Registers 38 Configuration Registers 39 Status Registers 41[...]

Communication Access Registers 36 870 US E 103 00 May 2 001 Overview of Register Types Purpose Each ad apte r conta ins thre e groups of intern al regis ters th at enabl e the app licat ion program to communic ate with the I/O base modul e. This sec tion d escribes the three register types , their funct ions and how they are acce ssed. Regist er Ty[...]

Communication Acces s Registers 870 USE 10 3 00 May 2001 37 Diagram of Register Typ e s The thre e group s of intern al registers are ill ustrated i n the diagram be low. MODULE ASCII HEADER (Read O nly) MODULE ST A TUS (Read O nly) MODULE OWNERSHIP (Read or Write) MODU LE TIMEO UT (Read or Write) DA T A OUTPUT (W rite On ly) DA T A INPUT (Read O n[...]

Communication Access Registers 38 870 US E 103 00 May 2 001 Data Regist ers Overv iew This sectio n describes th e use, field length and acce ss to data re gisters. Use Starting reference 40001 (hex) is used to address input d ata from field input s and output data to field outputs. Fie ld Le ngt h The da ta field le ngth is determi ned by the s pe[...]

Communication Acces s Registers 870 USE 10 3 00 May 2001 39 Configurati on Registers Over view This se ction describe s the functio n and paramete rs for module tim eout and mod ule ownersh ip register s. Module T imeout Register Functi on The modu le timeo ut regist er speci fies the amount o f time t hat ou tputs will be held in their cu rren t s[...]

Communication Access Registers 40 870 US E 103 00 May 2 001 Not e that this 60 - sec ond Wri te Pr ivile ge ti mer is sep arat e from the Out puts Holdu p timer, and applies on ly to the wri te privilege . Any node m ay read the in put dat a or status inform ation f rom the a dapter. T he 60-s econd time is a fixe d value and is not acce ssible to [...]

Communication Acces s Registers 870 USE 10 3 00 May 2001 41 Status Register s Over view This sec t io n de sc rib es the f unction and p ara meters of the m od ule status bloc k a nd the ASCII h eader block. Module Sta tus Block Func tion These regist ers provide i nformation ab out the mo dule’ s revis i on level an d current operati ng para met[...]

Communication Access Registers 42 870 US E 103 00 May 2 001 ASCII Header Block Func tion Thes e regi ste rs con tain an ASC II te xt desc riptio n of t he modu le. ASCII Header Block Parameters The bl ock leng th depends u pon the type of I/O base to which the ad apter is con nect ed. Th e maxi mum le ngth i s 64 bytes of ASC II ch arac ters , cor [...]

Communication Acces s Registers 870 USE 10 3 00 May 2001 43 Examp les of an ASCII Header Block The fig ure below shows two ex amples o f an ASCII H ead er Block. 170 ADM 350 00 (Di screte 16 -Point Inpu t, 16-Poin t Output Mod ule) MODBUS PLUS 984 DIG 0002 0101 Da ta bi ts t ra ns fe rr ed in 984 f ormat Digital modu le Input words : 1 Output words[...]

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