User manual

93Publication ENET-UM001I-EN-P - January 2010 93
Chapter 7
Interlocking and Data Transfer
Between Controllers
Introduction
This chapter describes how to share data by interlocking controllers
(producing and consuming tags) and transferring messages between
controllers via an EtherNet/IP network.
Set Up the Hardware
In this example, the controller in the local chassis produces a tag that the
Logix5000 controller in the remote chassis consumes. The local controller can
also send a MSG instruction to the remote controller.
Sharing Data and Transferring Messages
Communciation Methods
If you want to And the data Then Page
Interlock operations Resides on Logix5000 controllers Produce and consume a tag 95
Transfer data Needs regular delivery at an interval that you specify Produce and consume a tag 95
Is sent when a specific condition occurs in your application Execute a message (MSG) instruction 105
Data
B
AC
Item Description
A Local chassis containing a Logix5000 Controller with EtherNet/IP
Commun
ication Module
B Switch
C Remote chassis containing a Logix5000 Controller with EtherNet/IP
Commun
ication Module