Rockwell Automation Allen-Bradley 856T-B24LC, User Manual, Page: 49 / 82

Rockwell Automation Publication 856T-UM001B-EN-P - April 2021 49
Chapter 7 Message Structure and Configuration Example
Read Data from the IO-Link
Module
Once the Message Instruction dialog box has been populated, trigger the rung
of the logic that contains the message instruction. The Vendor Name is read
from the 856T-B24LC module and copied into the Read_Assembly Array. When
viewed as ASCII the name Allen-Bradley is displayed.
Example Format of a Write
Message
It is possible to write a unique name to the 856T-B24LC module. This
Parameter is called Application-Specific Name.
Appendix C on page 57 shows
the Index Number for this Parameter (24) and the maximum length of the
String (32 characters). Each character is equivalent to 1 byte. This example
shows the steps necessary to write Test to the Application-Specific Name
index.
The source element Array is Write_Assembly, byte 0 is the channel followed by
the data to be written.
The Message Configuration dialog box that shows the information that is
required to Write to the Application-Specific Name Parameter in the 856T-
B24LC module.