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ControlLogix DH-485 Communication Module User Manual

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ControlLogix DH-485 Communication Module1756-DH485User ManualImportant User InformationSolid state equipment has operational characteristics differing from those of electromechanical equipment. Safety Guidelines for the Application, Installation and Maintenance of Solid State Controls (publication SGI-1.1 available from your local Rockwell Automation sales office or online at http://literature.rockwellautomation.com) describes some important differences between solid state equipment and hard-wired electromechanical devices. Because of this difference, and also because of the wide variety of uses for solid state equipment, all persons responsible for applying this equipment must satisfy themselves that each intended application of this equipment is acceptable.In no event will Rockwell Automation, Inc. be responsible or liable for indirect or consequential damages resulting from the use or application of this equipment.The examples and diagrams in this manual are included solely for illustrative purposes. Because of the many variables and requirements associated with any particular installation, Rockwell Automation, Inc. cannot assume responsibility or liability for actual use based on the examples and diagrams.No patent liability is assumed by Rockwell Automation, Inc. with respect to use of information, circuits, equipment, or software described 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 notes to make you aware of safety considerations.The first line of trademarks is an example; the brand or product name changes according to publication but the rest of the line should remain the same. The second line should be used exactly as listed below in any case where it applies.Allen-Bradley, ControlLogix, and RSLinx are trademarks of Rockwell Automation, Inc.Trademarks not belonging to Rockwell Automation are property of their respective companies.WARNINGIdentifies information about practices or circumstances that can cause an explosion in a hazardous environment, which may lead to personal injury or death, property damage, or economic loss.IMPORTANTIdentifies information that is critical for successful application and understanding of the product.ATTENTIONIdentifies information about practices or circumstances that can lead to personal injury or death, property damage, or economic loss. Attentions help you identify a hazard, avoid a hazard, and recognize the consequenceSHOCK HAZARDLabels may be located on or inside the equipment, for example, a drive or motor, to alert people that dangerous voltage may be present.BURN HAZARDLabels may be located on or inside the equipment, for example, a drive or motor, to alert people that surfaces may be dangerous temperatures.iPublication 1756-UM532A-EN-P - May 2006Table of ContentsImportant User Information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2PrefacePurpose of This Manual. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Preface-iWho Should Use This Manual. . . . . . . . . . . . . . . . . . . . . . . . . . Preface-iOther Resources. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Preface-iChapter 11756-DH485 Module OverviewIntroduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1What the Module Does . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1Module Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1Module Features. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2Prevent Electrostatic Discharge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3Removal and Insertion Under Power . . . . . . . . . . . . . . . . . . . . . . . . . 1-4Typical Applications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5Remote Messaging. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7Remote Upload and Download . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7Routing Limitations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8DH-485 and CIP Messaging. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8Alphanumeric Indicators. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9Chapter 2Overview of the DH-485 NetworkIntroduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1DH-485 Network Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1DH-485 Network Protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2DH-485 Token Rotation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2DH-485 Network Initialization. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2Devices that Use the DH-485 Network . . . . . . . . . . . . . . . . . . . . . . . 2-31747-AIC Isolated Link Coupler for DH-485 . . . . . . . . . . . . . . . . . . 2-41761-NET-AIC Advanced Interface Converter Product Overview. 2-6Operating Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6Device Compatibility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6Node Address Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7Misconception about the 1761-NET-AIC Converter . . . . . . . . . . . . 2-71747-UIC USB to DH-485 Interface Converter . . . . . . . . . . . . . . . . 2-7Example System Configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8Configure the SLC 5/03, SLC 5/04, and SLC 5/05 Controller Channel 0 for DH-485. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9Important Planning Considerations . . . . . . . . . . . . . . . . . . . . . . . . . 2-10Hardware Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-10Software Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-12Additional Resources. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-13Publication 1756-UM532A-EN-P - May 2006Table of Contents iiChapter 3Use Data Highway 485 NetworkIntroduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1What Is Data Highway 485? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1Link Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2Two Methods of Communication Over a DH-485 Network . . . . . . 3-2Use DH-485 Messaging. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3Local DH-485 Messaging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3Limitations of Local DH-485 Messaging. . . . . . . . . . . . . . . . . . . 3-5Remote DH-485 Messaging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5Configuration Information in DH-485 Messaging. . . . . . . . . . . . . . 3-11Application Timeout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-12Example DH-485 Network Routing Configuration. . . . . . . . . . . . . 3-13Use the Common Industrial Protocol (CIP) Messaging. . . . . . . . . . 3-14Chapter 4Use RSLinx Software to Create a Routing TableIntroduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1Choose the Correct Software. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1Use RSLinx Software to Create a Routing Table . . . . . . . . . . . . . . . . 4-2What Is a Routing Table? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2ControlLogix Routing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2Create the Routing Table. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3Set the Controller Slot. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-8Chapter 5Communicate from an SLC 5/03 Controller to a Logix Controller over a DH-485 NetworkIntroduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1Hardware Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2Use the Controller Slot to Route the Local Message . . . . . . . . . . . . . 5-3Create a Local Message in RSLogix 500 . . . . . . . . . . . . . . . . . . . . . . . 5-4Configure the Message. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-5Create a Logic Map for the Local Message in RSLogix 5000 Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-6Publication 1756-UM532A-EN-P - May 2006Table of Contents iiiChapter 6Communicate Between SLC Controllers over DH+ and DH485 NetworksIntroduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1SLC 5/04 Controller Sends a Remote Message . . . . . . . . . . . . . . . . . 6-2Hardware Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2Create the Routing Table in RSLinx Software. . . . . . . . . . . . . . . 6-3Configure the SLC 5/03 Controller Channel 1 Link ID. . . . . . . 6-4Configure the SLC 5/04 Channel 1 Link ID . . . . . . . . . . . . . . . . 6-5Create a Message in RSLogix 500. . . . . . . . . . . . . . . . . . . . . . . . . 6-6Configure the Message . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-7SLC 5/03 Controller Sends a Remote Message . . . . . . . . . . . . . . . . . 6-8Hardware Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-8Create the Routing Table in RSLinx Software. . . . . . . . . . . . . . . 6-9Create a Remote Message in RSLogix 500. . . . . . . . . . . . . . . . . 6-10Configure the Message . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-11Chapter 7Communicate Between a PLC-5 Controller and a Remote SLC 5/03 Controller over Multiple DH-485 NetworksIntroduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1Hardware Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2Create the Routing Table. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-3Configure the PLC-5 DH+ Channel 1A Link ID . . . . . . . . . . . . 7-4Create a Message in RSLogix 5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-4Configure the Message. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-5Chapter 8Communicate from an SLC 5/05 Controller to an SLC 5/03 Controller over an EtherNet/IP NetworkIntroduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-1Hardware Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-2Create a Message in RSLogix 500 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-3Configure the Message. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-4Review the Multihop Feature in RSLogix 500 . . . . . . . . . . . . . . . . . . 8-5Chapter 9Communicate to a SLC 5/03 Controller on a DH-485 NetworkIntroduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-1Hardware Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-2Create a Message in RSLogix 5000 . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-3Configure the Message. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-4

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文档介绍: ControlLogix DH-485 Communication Module User Manual

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