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Momentum Sales & Marketing 170 PNT Series manual

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Table of contents for the manual

  • Page 1

    31002940.00 170 PNT Series Modbus Plus Communication Adapters for Momentum User Guide 870 USE 10 3 00 Version 2. 0 310029 40 00[...]

  • Page 2

    2 870 USE 1 03 00 May 2 001[...]

  • Page 3

    3 Tabl e of C ont e nts About the Book . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Chapter 1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 At a Glance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 [...]

  • Page 4

    4 870 USE 1 03 00 May 2 001[...]

  • Page 5

    870 USE 10 3 00 Januar y, 2001 5 About the Boo k At a Glance Document Sc ope This man ual de scribes the fun ctiona lity o f the 170 PN T Seri es Modbu s Plus Commun ic ati on Adap ters . The followi ng info rmation i s an i ntroductio n to this manua l: Function: The Modbu s Plus C ommuni cation Adapte rs can be conne cted to any Mome ntum I/ O ba[...]

  • Page 6

    6 870 USE 1 03 00 May 2 001 Product Related Warnings Sch neider Electric assum es no respo nsibilit y for any er rors th at may appe ar in th is documen t. If yo u have any sug gestio ns for improvem ents or amendm ents o r have found errors in th is public ation , please notify us. No p art of this docu ment may be reprodu ced in an y form or by a[...]

  • Page 7

    870 USE 10 3 00 May 2001 7 1 Introduction At a Glance Purpose Thi s chapter gives an overv iew of the Mo mentum Modbus Plus Co mmun ication Adapter mod els 170 PNT 110 20 and 1 70 PNT 16 0 20 and d escribes their s tatus indi cato rs, addr ess swi tches , port s and cabl ing. What’ s in this Chapter? This cha pter contai ns the following topic s:[...]

  • Page 8

    Introduction 8 870 USE 1 03 00 May 2 001 Product Overview Overv iew This secti on provi des an overv iew of t he fe at ures and func tion of the Mo mentu m Mod b us Pl us Comm unic atio n Adapt ers. Funct ion The Modbu s Plus Com muni cation Adapters can be connected to an y Momentu m I/ O base t o cr eate a functi onal I /O mo dule. The adapte rs [...]

  • Page 9

    Introduction 870 USE 10 3 00 May 2001 9 Environment al Specif ication The ad apter conform s to the env ironm ental sp ecific ation for th e I/O b ase u pon wh ich it is mou nted. For f urther in formation refer to the Mome ntum I /O Bases User Manual, p art numbe r 870 U SE 002 00.[...]

  • Page 10

    Introduction 10 870 USE 1 03 00 May 2 001 Status I ndicator s Overv iew This sect ion de scribes the s tatus i n dicat ors fo r each model , gives a diagr am of the indicato rs, and ex plain s how to in terpret th e indica tor patt erns. Indicators Eac h mod el has a f ront panel ind icato r showin g its network comm unicatio n statu s. The dual-c [...]

  • Page 11

    Introduction 870 USE 10 3 00 May 2001 11 Modbus Pl us Channel Error Indicators Model 17 0 PNT 160 20 dis plays th e follow ing error i ndica tor patte rns: Indicator (Red) Status Channel A Er ror Communications error at network port A. Channel B Er ror Communications error at network port B.[...]

  • Page 12

    Introduction 12 870 USE 1 03 00 May 2 001 Address Switches Overv iew This sect ion des cribes the ad dress switche s and explai ns how to us e them to set the module a ddress . Two R o tar y Switches Each Mod bus Plu s Commun icatio n Adapter h as two ro tary sw itches on the lo wer left portion of the fron t panel. T hese s witche s are use d to s[...]

  • Page 13

    Introduction 870 USE 10 3 00 May 2001 13 Example of No de Addr ess Assign ment The figure below s hows ty pical ad dress as signmen ts for a network with one controlle r and fo ur com municati on ada pters. Modbus Plus Communication Adapters with I/O Bases Node 1 Node 4 Node 2 Node 5 Node 3 Progr ammable C ontrolle r with Mo dbus Plus Port (Assigne[...]

  • Page 14

    Introduction 14 870 USE 1 03 00 May 2 001 Setting the Switches The fig ure below illustr ates ho w to se t a Modbu s Plus N ode Addr ess. Do not in stal l any adap ter unless you h ave set it s Modbus PLus address for your app lication. 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 [...]

  • Page 15

    Introduction 870 USE 10 3 00 May 2001 15 Ports and Cabling Over view This sec tion provide s info rmation about ports and ca bling for t he Momentum Modbus Pl us Communic ation Adapter s . Ports Model 17 0 PN T 1 10 20 h as on e M odb us Plu s p ort f or c on nec tio n to a n etwo r k wi th a single trunk cable. Model 170 PN T 160 20 has two port s[...]

  • Page 16

    Introduction 16 870 USE 1 03 00 May 2001[...]

  • Page 17

    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 Co mmunication Ad apter connects with an I/O base , how to assem ble a module, and how to label the assem bled module. It als o includes a proce dure for disa ssembli ng a module. What’ s in this Chapter? This cha pter c[...]

  • Page 18

    Assembling Adapter and I/O Base 18 870 USE 1 03 00 May 2001 Connections Bet ween the Adapter and I / O Base Overv iew This se ction expl ains the connections between a C ommunication Adapter and an I/ O base. Physi cal Connections A C ommunicat ion Adapter can b e snapped direc tly onto a Mome ntum I/O base, making connections at three points: The [...]

  • Page 19

    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 secti on conta ins sa fety prec aution s for hand ling co mpone nts and a pro cedure for assembl ing an I/O base and an adapter . Procedure: Assemblin g an I/O Base and an Adapter Follow t he steps in the table b elow to assem ble an I[...]

  • Page 20

    Assembling Adapter and I/O Base 20 870 USE 1 03 00 May 2001 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 units are in this position. The two devic es should be oriented su ch that their communication ports are facing out on the back side o [...]

  • Page 21

    Assembling Adapter and I/O Base 870 USE 10 3 00 May 2001 21 Labeling the Assembled Mod ule Over view A front pane l l abel is su ppl ied with each I/O base. The us er sh oul d fill out th e l abe l and affix it to the front p anel of th e adapter. What Goes on the Label? The user s hould fill out th e label to iden tify the field w iring con nectio[...]

  • Page 22

    Assembling Adapter and I/O Base 22 870 USE 1 03 00 May 2001 Disassembling an Adapter from an I/O Base Overv iew This secti on cont ains safe ty prec autio ns and a proc edur e for di sass em bli ng an adap ter f rom an I /O base . Tools Requ ired A flat-he ad screw driv er may be needed to di sassem ble the unit. Disassem bling an Adapter from an I[...]

  • Page 23

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

  • Page 24

    Assembling Adapter and I/O Base 24 870 USE 1 03 00 May 2001[...]

  • Page 25

    870 USE 10 3 00 May 2001 25 3 Using Modbu s Plus for D istributed I/O Servic ing At a Glance Purpose Thi s cha pter explains ho w best to con figure a netw ork for efficient servicing o f distribute d I/O. What’ s in this Chapter? This cha pter contai ns the follo wing topic s : Topic Page Strategies for Distributed I/O Serv ici ng 26 Network Con[...]

  • Page 26

    Modbus Plus for DIO Servicing 26 870 USE 1 03 00 May 2001 Strategi es for Dist ributed I/O Servicing Overv iew Modbus Plus network s can be used to service multi-pur pose control application s, or they can be organiz ed for the mos t efficient s ervicin g of distribu ted I/O devic es. This section compares th e two approache s. Network Funct ion In[...]

  • Page 27

    Modbus Plus for DIO Servicing 870 USE 10 3 00 May 2001 27 Network Configurat ion Over view This sec tion contain s guidel ines for conf igurin g a Modbus Plus network for distribute d I/O servic ing. Limit Type s of Device s on Network To ensure determ inistic timing, the ne twork should consi st of just one programmabl e controlle r node and the r[...]

  • Page 28

    Modbus Plus for DIO Servicing 28 870 USE 1 03 00 May 2001 Modbus Plus Network Layouts Overv iew This sec tion provide s tw o examples of M odbus Pl us network lay outs using com munic ation adapt ers i n a dist ribu t ed I/O contr ol app licat ion. Note that only one programm able contro ller and the require d I/O nodes a re present in th is ki nd [...]

  • Page 29

    Modbus Plus for DIO Servicing 870 USE 10 3 00 May 2001 29 Dual Cable Example The example below illustrate s a dual c able config uration. Networ k T r unk Cable A Networ k T r unk Cable B Programmable Controller with Modbus Plu s Redun dant Network Option Adapt er Node 1 Node 2 Node 3 170 PNT 160 20 with I/O bases[...]

  • Page 30

    Modbus Plus for DIO Servicing 30 870 USE 1 03 00 May 2001[...]

  • Page 31

    870 USE 10 3 00 May 2001 31 4 How Com munication Adapters Handle Messages At a Glance Purpose Thi s cha pter describe s how messages are defined in the applicati on and how message s are transac ted on the ne twork. What’ s in this Chapter? This cha pter contai ns the follo wing topic s : Topic Page How Message s Are Defined in the Application 32[...]

  • Page 32

    Communication Adapter Message Handling 32 870 USE 1 03 00 May 2001 How Messages Are Defined in the Application Overv iew This sec tion describes where and how messages a re defined in the applic ation. Pee r Cop T able The user defin es I / O mes sa ge trans ac tio ns in the Peer Cop tabl e of the controller. Entries to the tabl e are made using pa[...]

  • Page 33

    Communication Adapter Message Handling 870 USE 10 3 00 May 2001 33 How Messages are Transacted Over view This sec tion expl ains how a Communic ation Adap ter relays informatio n betwee n its I/O base and a programma ble controller. The Right to Tran smit A token frame is passed from node to node in a rotating a ddres s sequen ce. The node curre nt[...]

  • Page 34

    Communication Adapter Message Handling 34 870 USE 1 03 00 May 2001[...]

  • Page 35

    870 USE 10 3 00 May 2001 35 5 Communication Access Registers At a Glance Purpose Thi s cha pter describe s the three ty pes of co mmunication a ccess regi sters. What’ s in this Chapter? This cha pter contai ns the follo wing topic s : Topic Page Overview of Register Types 36 Data Registers 38 Configuration Registers 39 Status Registers 41[...]

  • Page 36

    Communication Access Registers 36 870 USE 1 03 00 May 2001 Overview of Register Types Purpose Each ad apter conta ins three gro ups of in ternal re gist ers th at enabl e the app licat ion program to communicate with the I/O ba se module. This sect ion des c ribes the three register types, t heir functions a nd how they are access ed. Register Ty p[...]

  • Page 37

    Communication Acces s Registers 870 USE 10 3 00 May 2001 37 Diagram of Register Typ e s The three g roups of intern al registers are illustrated in th e diagram below. MODULE ASCII HEADER (Read O nly) MODULE ST A TUS (Read O nly) MODULE OWNERSHIP (Read or Write) MODULE TIMEO UT (Read or Write) DA T A OUTPUT (W rite On l y) DA T A INPUT (Read O nly)[...]

  • Page 38

    Communication Access Registers 38 870 USE 1 03 00 May 2001 Data Registers Overv iew This sectio n describes th e use, field len gth and access to data registers . Use Starting reference 40001 (hex) is used to add ress input data from field input s and output data to field out puts. Fie l d Leng th The data fi eld length is d etermined by th e speci[...]

  • Page 39

    Communication Acces s Registers 870 USE 10 3 00 May 2001 39 Configurati on Regist ers Over view This secti on describe s the functio n and paramete rs for module timeo ut and module ownersh ip registers. Module T imeout Register Function The modu le timeo ut regist er speci fies the amount o f time t hat output s will be held in their curren t sta [...]

  • Page 40

    Communication Access Registers 40 870 USE 1 03 00 May 2001 Not e that thi s 60-se cond Wr ite P rivil ege ti me r is sep a rate from the O utputs Holdu p timer, and applies on ly to t he write p rivilege. An y node may read the input dat a or status in formati on fr om the a dapter. T he 60-s econd time is a fixe d value and is not access ible to t[...]

  • Page 41

    Communication Acces s Registers 870 USE 10 3 00 May 2001 41 Status Registers Over view This sec tio n de sc rib es the functio n a nd p arameters of th e m od ule sta t us bl oc k a nd the ASCII h eader block. Module Sta tus Block Function These regi sters provid e information about the modul e’s revision level and current operating para me ters [...]

  • Page 42

    Communication Access Registers 42 870 USE 1 03 00 May 2001 ASCII Header Block Function Th ese re gi ster s cont ai n an A SCII te xt desc riptio n of t he modul e. ASCII Header Block Parameters The block length depe nds upon the ty pe of I/O bas e to which the adapter is conn ected . The maximum l engt h is 64 bytes of ASCI I cha racter s, co rresp[...]

  • Page 43

    Communication Acces s Registers 870 USE 10 3 00 May 2001 43 Examples of an ASCII Header Block The figure below shows two examples of an ASCII Header Block . 170 ADM 3 50 00 (Discrete 16-Poin t Input, 16-Point Output Module) MODBUS PLUS 984 DIG 0002 0101 Da ta b its tra ns fe rr ed in 984 f ormat Digital modul e Input words : 1 Output word s: 1 Modu[...]

  • Page 44

    Communication Access Registers 44 870 USE 1 03 00 May 2001[...]