Chapter 8, How to configure an explicit message, Programming controllogix® explicit message – Rockwell Automation 284E ArmorStart with EtherNet/IP - User Manual User Manual
Page 203: Explicit messaging with controllogix, Setting up the msg instruction, Formatting an explicit message
Rockwell Automation Publication 280E-UM001B-EN-P - July 2012
203
Chapter
8
How to Configure an Explicit Message
Programming ControlLogix®
Explicit Message
Explicit Messaging with ControlLogix
In the ControlLogix platform, explicit messaging can be done easily from within
a logic program. The request and response is configured within the MSG
function. The MSG function can be found in the Input/Output tab of
RSLogix 5000.
Setting Up the MSG Instruction
A tag name must be given to the MSG function before the rest of the information
can be defined. In this example a tag was created with the name explicit_mess.
After the instruction has been named, click on the gray box
to define the rest
of the instruction.
Figure 75 - MSG Function Found in the Input/Output Tab
Formatting an Explicit
Message
ControlLogix scanners and bridges accommodate both downloading Explicit
Message Requests and uploading Explicit Message Responses. The message
format is shown in Figure 76.