ProSoft Technology ILX56-MM - Manual (Page 86)

Reference ILX56-MM ♦ ControlLogix Platform
User Manual InRAx Message Manager for Industrial Communication
Page 86 of 112 ProSoft Technology, Inc.
February 6, 2012
6.1.3 Transfer Lists
A Transfer List will contain one or more message commands. Each command in
the list will specify all the information needed to complete one data transfer
transaction, in much the same way as a MSG instruction in RA ladder logic would
contain all the information for one message. Multiple Transfer Lists may be
created to help you better organize your communications tasks by allowing
related messages to be grouped together. This also allows groups of messages
to be controlled by changes of data tag values, called Triggers or trigger events.
6.1.4 Data Transfer
Data transfer messages are created and controlled in the ILX56-MM using
Transfer Lists and Triggers. Transfer Lists determine what values are to be
transferred through the Message Manager between programmable controllers on
the various networks. For the most part, this messaging happens automatically,
based on the message configurations contained in the Transfer Lists.
The Message Manager transfers data to and from ControlLogix PACs by using
their Controller Tag database. Controller Tags are individual data objects or
object arrays in the ControlLogix processor memory database. Tags must be
created in the RSLogix5000 project and downloaded to the ControlLogix PAC
before they may be used in a Message Manager Transfer List.