1768 CompactLogix Controllers User Manual

1 1768 CompactLogix Controllers1768-L43, 1768-L45 Firmware Revision 16 user 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 available from your local Rockwell Automation sales office or online at ) 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 no event will Rockwell Automation, Inc.

2 Be responsible or liable for indirect or consequential damages resulting from the use or application of this 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 patent liability is assumed by Rockwell Automation, Inc. with respect to use of information, circuits, equipment, or software described in this of the contents of this Manual , in whole or in part, without written permission of Rockwell Automation, Inc.

3 , is this Manual , when necessary, we use notes to make you aware of safety , CompactLogix , ControlFlash, ControlLogix, PowerFlex, Rockwell Automation, RSLinx, RSLogix 5000, Logix5000, ViewAnyWare, RSNetWorx for EtherNet/IP, RSNetWorx for ControlNet, PanelView, PanelView Plus, FLEX I/O, Powermonitor 3000, POINT I/O, PowerFlex 40, PowerFlex 70, Data Highway Plus, PowerFlex 700S, Compact I/O, PowerFlex 4, RSNetWorx for DeviceNet, DH+, MessageView, NetLinx, SLC 5/03, Data Highway II, PLC-2, PLC-3, PLC-5, SLC, RediSTATION, PanelConnect, Kinetix, RSLogix 5000 with PhaseManager, RSBizWare Batch, and TechConnect are trademarks of Rockwell Automation not belonging to Rockwell Automation are property of their respective 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 information that is critical for successful application and understanding of the information about practices or circumstances that can lead to: personal injury or death, property damage, or economic loss.

4 Attentions help you identify a hazard, avoid a hazard, and recognize the HAZARDL abels may be on or inside the equipment, such as a drive or motor, to alert people that dangerous voltage may be HAZARDL abels may be on or inside the equipment, such as a drive or motor, to alert people that surfaces may reach dangerous 1768-UM001C-EN-P - November 2007 Summary of ChangesIntroductionThe release of this document contains new and updated information. To find new and updated information, look for change bars, as shown next to this InformationThe document contains these changes This table represents major topics.

5 Make sure to look for the change bars throughout this Should Use This Publication 91768-L45 CompactLogix ControllerThroughout manualAbout the 1768 CompactLogix Controllers11 Complex CompactLogix System12 Additional Resources9, 13, 44, 50, 68, 83, 104, 112 Connect a controller Via the Serial Port16 Set the IP Address via a Serial Port20 Set the IP Address Using the BOOTP/DHCP Utility23 Communication I/O Modules for DeviceNet30 Modbus RTU35 Modbus Support40 Station Address43 Optimize network performance43 Token hold factor44 Producing and Consuming (interlock) Data461768 Module Placement511769 Module Placement53 Reconfigure an I/O Module65 Reconfigure a Module via a MSG Instruction66 Managing Tasks69 Defining Tasks71 Defining Programs72 System Overhead Time Slice81 Set Up Each Axis95 PhaseManager programs, Minimum System Requirements110 Preventing a Major Fault During a Load1121768 CompactLogix controller Specifications113 CompactLogix controller Status Indicators117 Publication 1768-UM001C-EN-P - November 2007 Summary of Changes 4 Notes.

6 5 Publication 1768-UM001C-EN-P - November 2007 Table of ContentsImportant user Information .. 2 Summary of ChangesIntroduction .. 3 Updated Information .. 3 PrefacePurpose of This Manual .. 9 Who Should Use This Publication .. 9 Additional Resources .. 9 Chapter 11768 CompactLogix OverviewIntroduction .. 11 About the 1768 CompactLogix Controllers .. 11 Designing a System .. 13 Additional Resources .. 13 Chapter 2 Directly Connect to a controller Via the Serial PortIntroduction .. 15 Connect a controller Via the Serial Port.. 16 Configure the Serial Driver .. 17 Select the controller Path.

7 19 Set the IP Address via a Serial Port .. 20 Chapter 3 Communicate over NetworksIntroduction .. 21 EtherNet/IP Network Communication .. 22 Set the IP Address Using the BOOTP/DHCP Utility .. 231768-ENBT EtherNet/IP Communication Module .. 241768-EWEB Web Server Module .. 26 Connections Over an EtherNet/IP Network .. 27 ControlNet Network Communication .. 271768-CNB and 1768-CNBR ControlNet Modules .. 28 Connections Over a ControlNet Network .. 29 DeviceNet Network Communication .. 30 Communication I/O Modules for DeviceNet .. 30 Serial Network Communication.

8 34 Master and Slave Communication .. 35 Communicate with DF1 Devices .. 35 Communicate with ASCII Devices.. 37 Modbus Support .. 40DH-485 Network Communication .. 40 Additional Resources .. 44 Publication 1768-UM001C-EN-P - November 20076 Table of ContentsChapter 4 Manage controller CommunicationIntroduction .. 45 Connection Overview .. 45 Producing and Consuming (interlock) Data .. 46 Sending and Receiving Messages.. 47 Determining Whether to Cache Message Connections .. 47 Calculating Connection Use.. 48 Connections Example .. 49 Additional Resources.

9 50 Chapter 5 Place 1768 and 1769 ModulesIntroduction .. 511768 Module Placement.. 511769 Module Placement.. 53 Chapter 6 Configure and Monitor I/OIntroduction .. 55 Selecting I/O Modules.. 55 Local I/O Performance.. 56 Configuring I/O.. 56I/O Connections .. 58 Configure Distributed I/O on an EtherNet/IP Network .. 59 Configuring Distributed I/O on a DeviceNet Network .. 60 Address I/O Data .. 61 Determine When Data is Updated .. 62 Monitor I/O Modules .. 63 Display Fault Data .. 63 End-cap Detection and Module Faults.. 65 Reconfigure an I/O Module .. 65 Reconfigure a Module via RSLogix 5000 Programming Software.

10 65 Reconfigure a Module via a MSG Instruction .. 66 Additional Resources .. 68 Chapter 7 Develop ApplicationsIntroduction .. 69 Managing Tasks .. 69 Developing Programs .. 70 Defining Tasks .. 71 Defining Programs.. 72 Defining Routines .. 72 Sample controller Projects .. 73 Organizing Tags .. 74 Selecting a Programming Language.. 75 Add-On Instructions .. 75 Publication 1768-UM001C-EN-P - November 2007 Table of Contents 7 Monitoring controller Status.. 77 Monitoring Connections .. 77 Determining if Communication has Timed Out with Any Device .. 78 Determining if Communication has Timed Out with a Specific I/O Module.