Allen-Bradley ControlLogix 1756-DH485 Скачать руководство пользователя страница 33 | Manualshive

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Allen-Bradley ControlLogix 1756-DH485 Скачать руководство пользователя страница 33

1

Publication 1756-UM532A-EN-P - May 2006

Chapter

3

Use Data Highway 485 Network

Introduction

This chapter describes the basics of the Data Highway 485 system and the
operation of a DH-485 network.

What Is Data Highway 485?

On the most basic level, Data Highway 485 is a wire or cable and a protocol
that connects computers and peripheral devices so that they can communicate.
The wire used for a network is called the network medium.

A DH-485 link transfers data between ControlLogix controllers, SLC
controllers, and other devices that use the DH-485 network. These devices are
called stations. You can connect a maximum of 32 stations to a single DH-485
link.

For

See

What Is Data Highway 485?

Two Methods of Communication Over a DH-485 Network

Use DH-485 Messaging

Configuration Information in DH-485 Messaging

Application Timeout

Example DH-485 Network Routing Configuration

Use the Common Industrial Protocol (CIP) Messaging

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Содержание ControlLogix 1756-DH485

Страница 1: ...ControlLogix DH 485 Communication Module 1756 DH485 User Manual...

Страница 2: ...escribed in this manual Reproduction of the contents of this manual in whole or in part without written permission of Rockwell Automation Inc is prohibited Throughout this manual when necessary we use...

Страница 3: ...1 9 Chapter 2 Overview of the DH 485 Network Introduction 2 1 DH 485 Network Description 2 1 DH 485 Network Protocol 2 2 DH 485 Token Rotation 2 2 DH 485 Network Initialization 2 2 Devices that Use t...

Страница 4: ...n 3 13 Use the Common Industrial Protocol CIP Messaging 3 14 Chapter 4 Use RSLinx Software to Create a Routing Table Introduction 4 1 Choose the Correct Software 4 1 Use RSLinx Software to Create a Ro...

Страница 5: ...ssage in RSLogix 500 6 10 Configure the Message 6 11 Chapter 7 Communicate Between a PLC 5 Controller and a Remote SLC 5 03 Controller over Multiple DH 485 Networks Introduction 7 1 Hardware Configura...

Страница 6: ...ppendix A Specifications Appendix B Troubleshoot the 1756 DH485 Module Introduction B 1 Check Power Supply and Module Status B 1 Interpret the LED Status Indicators B 2 Interpret the Alphanumeric Indi...

Страница 7: ...to send DH 485 messages between ControlLogix PLC and SLC controllers in DH 485 applications Who Should Use This Manual Use this manual if you program applications that use 1756 DH485 modules We assume...

Страница 8: ...Publication 1756 UM532A EN P May 2006 Preface ii Notes...

Страница 9: ...etworks in one module Common Industrial Protocol CIP Messaging Module Requirements The following are required for using the 1756 DH485 communication module RSLinx Software version 2 41 or later Node a...

Страница 10: ...n be removed and inserted under power without disrupting power to other modules in the chassis 4 character display Default Controller Slot feature for local messaging Serial Port Configuration No limi...

Страница 11: ...tatus Indicator Door Label ATTENTION This equipment is sensitive to electrostatic discharge which can cause internal damage and affect normal operation Follow these guidelines when you handle this equ...

Страница 12: ...When you insert or remove the module while backplane power is on an electrical arc can occur This could cause an explosion in hazardous location installations Be sure that power is removed or the area...

Страница 13: ...485 networks together for inter network communications for example messages between SLC 5 03 controllers provide connection to other NetLinx networks such as EtherNet IP to allow a single point acces...

Страница 14: ...view display Allow communications between legacy and ControlLogix systems for high integration of control systems except for fixed SLC controllers Phase SLC systems into ControlLogix architecture by u...

Страница 15: ...Logix and SLC 500 controllers on DH 485 from NetLinx network by using RSLinx Classic software PanelView Standard terminals on DH 485 from NetLinx network by using RSLinx Classic Logix controllers mess...

Страница 16: ...s devices such as ControlLogix PLC and SLC controllers exchange information With the 1756 DH485 module you may exchange information between the ControlLogix PLC or SLC controllers on different network...

Страница 17: ...address 7 Channel A status 8 Channel B and the network used for channel 9 Channel B node address 10 Channel B status This sequence runs continuously during normal module operation Refer to Appendix B...

Страница 18: ...Publication 1756 UM532A EN P May 2006 1 10 1756 DH485 Module Overview Notes...

Страница 19: ...erconnection of 32 devices multi master capability token passing access control the ability to add or remove nodes without disrupting the network maximum network length of 1219 m 4000 ft 1 For See DH...

Страница 20: ...o 31 The allowable address range for all responders is 1 to 31 There must be at least one initiator on the network DH 485 Network Initialization Network initialization begins when a period of inactivi...

Страница 21: ...coupler provides a 6 position removable terminal block for connection to the DH 485 communication cable 1747 UM011 1761 NET AIC Advanced Interface Converter Standalone Provides a communication link b...

Страница 22: ...ion between the communications cable and the attached SLC 500 controller and peripheral devices 2707 L8P1 1 2707 L8P2 1 2707 L40P1 1 2707 L40P2 1 2707 V40P1 1 2707 V40P2 1 2707 V40P2N 1 2707 M232P3 1...

Страница 23: ...ances greater than 1 8 m 6 ft up to a maximum of 1219 m 4000 ft Below is an example of a remote connection between a computer running your programming software and an SLC 500 controller Remote Connect...

Страница 24: ...atch the baud rate filter of the AIC to the network baud rate This switch does not change the network baud rate and is normally left in the AUTO position In high noise environments the baud rate selec...

Страница 25: ...protocol and electrical signal is the 1747 KE module Refer to the Isolation Interface Converter AIC User Manual publication 1761 UM004 for complete information 1747 UIC USB to DH 485 Interface Conver...

Страница 26: ...Chassis SLC 500 Fixed Controller 1747 AIC ControlLogix Controller and 1756 DH485 Communications Module 1747 AIC SLC 5 01 Modular Controller DH 485 Network max length 1219 m 4 000 ft Data Table Access...

Страница 27: ...s to a DH 485 network using the 1747 CP3 cable and a 1761 NET AIC Advanced Interface Converter AIC In this case the AIC must be powered with 24V dc The 1746 P1 P2 P4 P5 and P6 power supplies provide 2...

Страница 28: ...iderations You need to decide the length of the communication cable where you will route it and how to protect it from the environment where it will be installed Before you install the communication c...

Страница 29: ...reater than 20A but only up to 100k VA and 0 30 m 1 ft from lines of 100k VA or more Running the communication cable through conduit provides extra protection from physical damage and electrical inter...

Страница 30: ...k considerations and describe ways to select parameters for optimum network performance speed Number of Nodes The number of nodes on the network directly affects the data transfer time between nodes U...

Страница 31: ...n it can be useful to leave a temporary device such as a personal computer connected if there is only one such device A solicit successor packet requires the same transmission time as the token pass b...

Страница 32: ...Publication 1756 UM532A EN P May 2006 2 14 Overview of the DH 485 Network Notes...

Страница 33: ...wire used for a network is called the network medium A DH 485 link transfers data between ControlLogix controllers SLC controllers and other devices that use the DH 485 network These devices are call...

Страница 34: ...to install a DH 485 network refer to publication 1747 UM011 SLC 500 Modular Hardware Style User Manual Two Methods of Communication Over a DH 485 Network The 1756 DH485 module acts as a bridge for tw...

Страница 35: ...e page 3 3 Remote DH 485 Messaging See page 3 5 Before you can design a control system to meet your application needs be aware of the difference between Local DH 485 Messaging and Remote DH 485 Messag...

Страница 36: ...sage cannot identify where to send the message The 1756 DH485 module uses the Controller Slot configuration parameter in RSLinx software to send the message to the local controller Local DH 485 messag...

Страница 37: ...network Remote DH 485 Messaging Devices use remote DH 485 messaging to communicate between devices on physically separate networks A device that uses remote DH 485 messaging must be able to generate...

Страница 38: ...node 030 Remote DH 485 Messaging Between SLC 5 03 Controller A and SLC 5 03 Controller B Link IDs To use remote DH 485 messaging each network that is an originating network or target network must hav...

Страница 39: ...odes located on separate networks By using the routing table the 1756 DH485 module lets existing devices such as an SLC controller to use DH 485 Remote Addressing for messaging You must use RSLinx sof...

Страница 40: ...ontrolLogix chassis backplane may also be assigned link IDs assign DH 485 node numbers use RSLinx software to load routing tables into each 1756 DH485 module When using remote DH 485 messaging you mus...

Страница 41: ...g Respond to Local DH 485 Initiate Local DH 485 Respond to Remote DH 485 Initiate Remote DH 485 MicroLogix 1000 Yes Yes Yes No MicroLogix 1100 Yes Yes Yes Yes MicroLogix 1200 Yes Yes Yes Yes MicroLogi...

Страница 42: ...connections when it receives DH 485 message traffic The 1756 DH485 module recovers connections if they are not being used Because of the various paths involved the 1756 DH485 module responds to out o...

Страница 43: ...the module This information must be applied to the module s configuration separately from other information Use RSLinx to apply the routing table For more information about routing tables see the sect...

Страница 44: ...three things happen The SLC 5 03 controller refuses the message because the buffers are full The originator detects an application timeout when no reply is received The originator increments its error...

Страница 45: ...IMPORTANT Some devices in this figure have the same node number because they are on different networks Devices on the same network must have unique node numbers You must assign the node numbers DH485...

Страница 46: ...thod to route messages than DH 485 messaging CIP uses a relative path concept for routing messaging Because the message itself or the connection the message is sent on contains all the information req...

Страница 47: ...hat products you are using with the 1756 DH485 module The table below explains what software is needed for your application For See Choose the Correct Software 4 1 Use RSLinx Software to Create a Rout...

Страница 48: ...d node addresses The routing table translates link IDs and node address information into path or routing information Thus the routing table specifies a map to other links in the system Routing tables...

Страница 49: ...for your application follow these steps 1 Start RSLinx 2 Browse the network 3 Right click on the 1756 DH485 module 4 Use the left side navigation bar to see your DH 485 application as shown in the ex...

Страница 50: ...a Routing Table 5 Select the DH 485 Routing Table tab You must build the routing table based on the 1756 DH485 modules in the ControlLogix chassis Each link ID for example chassis backplane channels...

Страница 51: ...le 4 5 6 You must assign link IDs as shown below A Right click on the 1756 DH485 module B Click Edit Module C Assign Link IDs and click OK IMPORTANT Keep track of your Link ID assignments You need the...

Страница 52: ...Publication 1756 UM532A EN P May 2006 4 6 Use RSLinx Software to Create a Routing Table The 1756 DH485 routing table displays with the link IDs defined...

Страница 53: ...ting Table 4 7 7 Assign a Link ID for the chassis backplane 8 Click OK The software prompts you to download routing table changes 9 Click Yes This completes the routing table creation process A Right...

Страница 54: ...ogix controller with this feature No routing table is required The controller slot is the physical location of a ControlLogix controller in a DH 485 application The default setting is slot 0 If necess...

Страница 55: ...module to a 1756 Lx controller For See Hardware Configuration 5 2 Use the Controller Slot to Route the Local Message 5 3 Create a Local Message in RSLogix 500 5 4 Configure the Message 5 5 Create a Lo...

Страница 56: ...communications are initiated by an SLC 5 03 controller The message is sent to a 1756 DH485 module and the 1756 Lx controller is located in slot 11 Communications Between an SLC 5 03 Controller and a...

Страница 57: ...etwork 5 3 Use the Controller Slot to Route the Local Message When a local DH485 message is received the message will automatically be routed to the controller based on the configured slot number In t...

Страница 58: ...A EN P May 2006 5 4 Communicate from an SLC 5 03 Controller to a Logix Controller over a DH 485 Network Create a Local Message in RSLogix 500 This is an example of a local message being initiated by t...

Страница 59: ...Publication 1756 UM532A EN P May 2006 Communicate from an SLC 5 03 Controller to a Logix Controller over a DH 485 Network 5 5 Configure the Message This is the Setup dialog for the example message...

Страница 60: ...roller over a DH 485 Network Create a Logic Map for the Local Message in RSLogix 5000 Software You must logically map the SLC data address to the ControlLogix tag To get to the Logix Map in RSLogix 50...

Страница 61: ...Routing Table in RSLinx Software 6 3 Create a Message in RSLogix 500 6 6 Configure the Message 6 7 SLC 5 03 Controller Sends a Remote Message 6 8 Hardware Configuration 6 8 Create the Routing Table in...

Страница 62: ...3 controller The SLC 5 04 controller is on a DH network 1 The SLC 5 04 controller connects to Channel B on the 1756 DHRIO module 2 The SLC 5 03 controller connects to Channel A of the 1756 DH485 modul...

Страница 63: ...ler is node 10 octal SLC 5 04 controller connects to a 1756 DHRIO module at node 56 octal or 46 decimal connection is on Channel B of the 1756 DHRIO SLC 5 04 controller sends a remote message to the S...

Страница 64: ...ers over DH and DH485 Networks Configure the SLC 5 03 Controller Channel 1 Link ID The SLC 5 03 remote link ID needs to be programmed to match the link IDs configured into the 1756 DH485 module These...

Страница 65: ...over DH and DH485 Networks 6 5 Configure the SLC 5 04 Channel 1 Link ID The SLC 5 04 controller remote link ID needs to be programmed to match the link IDs configured into the 1756 DH485 module These...

Страница 66: ...6 UM532A EN P May 2006 6 6 Communicate Between SLC Controllers over DH and DH485 Networks Create a Message in RSLogix 500 This is the message for the example configuration Click Setup Screen to config...

Страница 67: ...ge This is the Setup dialog for the example message The SLC 5 04 controller connects to a 1756 DHRIO module at node 56 octal or 46 decimal The SLC 5 04 controller sends a remote message to the SLC 5 0...

Страница 68: ...C 5 03 controller connects to Channel A on the 1756 DH485 module 2 The SLC 5 04 controller is connected to Channel B of the 1756 DHRIO module in the same rack as the 1756 DH485 module 3 The SLC 5 04 c...

Страница 69: ...el A of the 1756 DH485 module The 1756 DH485 node address on the DH 485 network is node 0 1756 DHRIO and the 1756 DH485 modules are on the same backplane 1756 DH485 module is in slot 14 1756 DHRIO mod...

Страница 70: ...N P May 2006 6 10 Communicate Between SLC Controllers over DH and DH485 Networks Create a Remote Message in RSLogix 500 This is the example message for the hardware configuration Click on Setup Screen...

Страница 71: ...ntrollers over DH and DH485 Networks 6 11 Configure the Message This is the Setup Screen for the example message In this example the SLC 5 03 controller is connected to Channel A of the 1756 DH485 mod...

Страница 72: ...Publication 1756 UM532A EN P May 2006 6 12 Communicate Between SLC Controllers over DH and DH485 Networks Notes...

Страница 73: ...emote PLC 5 controller to send a message to a remote SLC 5 03 controller over multiple DH 485 Networks For See Hardware Configuration 7 4 Create a Message in RSLogix 5 7 4 Configure the Message 7 5 Cr...

Страница 74: ...he PLC 5 controller is connected to channel A on a 1756 DHRIO module located at node 12 2 The 1756 DHRIO is on the same backplane as the 1756 DH485 module and is located in slot 8 of the chassis 3 The...

Страница 75: ...ler and a Remote SLC 5 03 Controller over Multiple DH 485 Networks 7 3 Create the Routing Table These are the routing tables for the message in the example configuration This is the routing table for...

Страница 76: ...e SLC 5 03 Controller over Multiple DH 485 Networks Configure the PLC 5 DH Channel 1A Link ID The PLC 5 DH Channel 1A Link ID needs to be configured This is an example of the channel properties Create...

Страница 77: ...M532A EN P May 2006 Communicate Between a PLC 5 Controller and a Remote SLC 5 03 Controller over Multiple DH 485 Networks 7 5 Configure the Message This is the Setup dialog for the message in the exam...

Страница 78: ...Publication 1756 UM532A EN P May 2006 7 6 Communicate Between a PLC 5 Controller and a Remote SLC 5 03 Controller over Multiple DH 485 Networks Notes...

Страница 79: ...controller to an SLC 5 03 controller over an EtherNet IP network For See Hardware Configuration 8 2 Create a Message in RSLogix 500 8 3 Configure the Message 8 4 Review the Multihop Feature in RSLogi...

Страница 80: ...nitiates a message 1 The message is sent over an EtherNet IP network to a 1756 ENBT module 2 The message is then sent over the backplane to a 1756 DH485 module 3 The 1756 DH485 module then sends the m...

Страница 81: ...n SLC 5 05 Controller to an SLC 5 03 Controller over an EtherNet IP Network 8 3 Create a Message in RSLogix 500 This is the message for the example configuration Click on Setup Screen to configure the...

Страница 82: ...r minimum firmware revisions needed for the SLC 5 05 controller to communicate to a 1756 ENBT controller The SLC 5 05 controller needs to be at a minimum Series A 0S501 Firmware 5 In this example the...

Страница 83: ...oller to an SLC 5 03 Controller over an EtherNet IP Network 8 5 Review the Multihop Feature in RSLogix 500 The multihop feature of RSLogix 500 takes care of routing this remote message No routing tabl...

Страница 84: ...Publication 1756 UM532A EN P May 2006 8 6 Communicate from an SLC 5 05 Controller to an SLC 5 03 Controller over an EtherNet IP Network Notes...

Страница 85: ...55 controller to an SLC 5 03 controller through DH and DH485 networks For See Hardware Configuration 9 2 Create a Message in RSLogix 5000 9 3 Configure the Message 9 4 IMPORTANT The examples use the 1...

Страница 86: ...4 The SLC 5 03 controller receives the message 6 DH 485 network communicates through link couplers 5 44066 1756 DHRIO 1 DH Network AIC AIC The communication path goes from the local 1756 DHRIO module...

Страница 87: ...ation 1756 UM532A EN P May 2006 Communicate to a SLC 5 03 Controller on a DH 485 Network 9 3 Create a Message in RSLogix 5000 This is the message for the example configuration Click to configure the m...

Страница 88: ...is in the 1756 L55 controller Path Item Description dhrio_ser_B When you browse to the local 1756 DHRIO module appears if you have it configured in the I O configuration tree in RSLogix 5000 software...

Страница 89: ...munication from a Logix controller to an SLC controller over an EtherNet IP network For See Hardware Configuration 10 2 Create a Remote 1756 ENBT Message in RSLogix 5000 10 3 Configure the Message 10...

Страница 90: ...5 03 controller over EtherNet IP The 1756 ENBT module 1 to communicate to a remote 1756 ENBT module 2 over the EtherNet IP network backplane The 1756 DH485 module 3 then communicates through Channel...

Страница 91: ...e from a Logix Controller to an SLC 5 03 Controller over EtherNet IP and DH 485 Networks 10 3 CreateaRemote1756 ENBT Message in RSLogix 5000 This is an example remote 1756 ENBT message Click the butto...

Страница 92: ...therNet IP and DH 485 Networks Configure the Message This dialog shows example values on the Configuration tab for the remote message Message Type SLC Typed Write Source Element interger_slc_dh485 20...

Страница 93: ...ane to slot 5 where the 1756 ENBT named Series_A is located Series A is defined as backplane 1 slot 5 2 EtherNet IP port 100 100 100 7 The remote 1756 ENBT 1 Go to the backplane of the remote 1756 cha...

Страница 94: ...Publication 1756 UM532A EN P May 2006 10 6 Communicate from a Logix Controller to an SLC 5 03 Controller over EtherNet IP and DH 485 Networks Notes...

Страница 95: ...ue Operational Temperature IEC 60068 2 1 Test Ad Operating Cold IEC 60068 2 2 Test Bd Operating Dry Heat IEC 60068 2 14 Test Nb Operating Thermal Shock 0 60 C 32 140 F Storage Temperature IEC 60068 2...

Страница 96: ...ations when product is marked 1 c UL us UL Listed for Class I Division 2 Group A B C D Hazardous Locations certified for U S and Canada See UL File E194810 CE European Union 89 336 EEC EMC Directive c...

Страница 97: ...e address Channel A status Channel B and the network used for channel B Channel B node address Channel B status This channel sequences run continuously during normal module operation Module OK status...

Страница 98: ...ly Status is Recommended Action Off Not operating Turn power ON Check power wiring connections Check fuse On Operating None normal operation Module OK Indicator Module Status Recommended Action Off No...

Страница 99: ...e second intervals This table summarizes the codes Alphanumeric Display Descriptions Message Description Recommended Action ONLY NODE Only node on DH 485 link Check the cables OFF LINE DH 485 link is...

Страница 100: ...atus of D0 hex A PLC 5 controller displays this error as D000 hex when monitoring the message instruction If you receive this error message take the following actions Check your message instruction to...

Страница 101: ...rror message take the following actions Check your message instruction to make sure a valid local node destination link ID and destination node were entered Check your routing table in each 1756 DH485...

Страница 102: ...Publication 1756 UM532A EN P May 2006 B 6 Troubleshoot the 1756 DH485 Module Notes...

Страница 103: ...85 module 1 1 3 2 3 14 configuration controller slot 4 8 Data Highway 485 DH 485 messaging 3 11 controller slot set 4 8 use to route a local message 5 3 D Data Highway 485 DH 485 3 1 definition 3 1 Da...

Страница 104: ...moval and insertion under power RIUP 1 4 routing errors in local Data Highway 485 DH 485 messaging B 4 in remote Data Highway 485 DH 485 messaging B 5 routing limitations for messages sent via the 175...

Страница 105: ...500 4 1 RSLogix 5000 4 1 Specifications 1756 DH485 module A 1 environmental conditions A 1 status indicators for use in troubleshooting B 4 system configuration example 2 8 T troubleshoot B 1 B 5 powe...

Страница 106: ...Publication 1756 UM532A EN P May 2006 iv Index Notes...

Страница 107: ...ss all necessary information is provided 1 2 3 Can we add more information to help you procedure step illustration feature example guideline other explanation definition Technical Accuracy all provide...

Страница 108: ...NECESSARY IF MAILED IN THE UNITED STATES BUSINESS REPLY MAIL FIRST CLASS MAIL PERMIT NO 18235 CLEVELAND OH POSTAGE WILL BE PAID BY THE ADDRESSEE 1 ALLEN BRADLEY DR MAYFIELD HEIGHTS OH 44124 9705 PLEA...

Страница 109: ......

Страница 110: ...mation com Installation Assistance If you experience a problem with a hardware module within the first 24 hours of installation please review the information that s contained in this manual You can al...

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