ProSoft Technology MVI69L-MBTCP - Manual (Page 141)

MVI69L-MBTCP ♦ CompactLogix Platform Reference
Communication Module User Manual
ProSoft Technology, Inc. Page 141 of 152
January 6, 2014
7.4.14 Pass-through Formatted Block for Function 5
Block 9958: Pass-through Formatted Block for Function 5
Block 9958: Request from Module to Processor
Offset Description
0 Block ID 9958
1 Block ID: 9958
2 Number of word registers in Modbus data set
3 Starting address for Modbus data set
4 to 53 Modbus Data
The ladder logic will be 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.
Block 9958: Response from Processor to Module
Offset Description
0 Block ID 9958
1 to 239 Spare
This will inform the module that the command has been processed and can be
cleared from the pass-through queue.