Reference MVI69E-MBTCP ♦ CompactLogix Platform
User Manual Modbus TCP/IP Enhanced Communication Module
Page 142 of 150 ProSoft Technology, Inc.
June 28, 2017
The ladder logic is responsible for parsing and copying the received message
and performing the proper control operation as expected by the client device.
The processor must then respond to the Pass-Through control block with an
output image write block with the following format. This informs the module that
the command has been processed and can be cleared from the Pass-Through
queue.
Block 9970: Response from Processor to Module
Spare (Length in words = n - 2)
7.4.18 Set Module Time Using Received Time Block (9972)
This block uses the time information of the processor to set the module time.
Block 9972: Request from Processor to Module
Where n = 60, 120, or 240 depending on the Block Transfer Size parameter.
Block 9972: Response from Module to Processor
Return code:
0=OK
-1=error
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