1785 Data Sheet

Enhanced and Ethernet PLC-5 Programmable Controllers
1785-L11B, -L20B, -L30B, -L40B, -L40L, -L60B, -L60L, -L80B, -L20E, -L40E, -L80E, -L26B, -L46B, -L86B

User Manual

Important User Information

Solid state equipment has operational characteristics differing from those of electromechanical equipment. Safety Guidelines for the Application, Installation and Maintenance of Solid StateControls (Publication SGI-1.1 available from your local Rockwell Automation sales office or online at http://www.ab.com/manuals/gi) 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 satisfythemselves 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 anyparticular 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 RockwellAutomation, Inc. is prohibited. Throughout this manual, when necessary we use notes to make you aware of safety considerations.
WARNING

Identifies 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.

IMPORTANT

Identifies information that is critical for successfulapplication and understanding of the product. Identifies 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 • recognize the consequence

ATTENTION

SHOCK HAZARD

Labels may be located on or inside the equipment (e.g., drive or motor) to alert people that dangerousvoltage may be present.

BURN HAZARD

Labels may be located on or inside the equipment (e.g., drive or motor) to alert people that surfaces may be dangerous temperatures.

Summary of Changes

Summary of Changes

Changes to this Manual

This user manual contains new and updated information. The black revision bars, as shown on the left, indicate the changes. For specific locations ofthe new information, refer to the table below.

Find the New Information
This New and Updated Information Domain Name Service User Provided Web Pages Multihop Messaging over Ethernet TCP/IP Communications Additional Ethernet Diagnostics Memory Card Diagnostics Troubleshooting and Diagnostics Is on Page 11-15 11-16 11-29 11-32 11-35 B-12 F-2

Additional Ethernet PLC-5 Controller EnhancementEthernet PLC-5 controllers support use of the 1785-RC Relay Cartridge. The relay cartridge serves as an interface from the controller to a user-supplied external device such as an Allen-Bradley 700P relay. When the controller is in run mode, it monitors online ladder program edits and I/O forcing activity. When either of these is detected, the controller opens the relay on the relay cartridge forone second.

1

Publication 1785-UM012D-EN-P - July 2005

Summary of Changes

2

Notes

Publication 1785-UM012D-EN-P - July 2005

Table of Contents

Preface

Purpose of This Manual. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Related PLC-5 Documentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Terms Used in This Manual. . . . . . ....