ProSoft Technology MVI69L-MBS - Manual (Page 139)

MVI69L-MBS ♦ CompactLogix Platform Reference
Communication Module User Manual
ProSoft Technology, Inc. Page 139 of 154
January 6, 2014
Block 9960: Response from Processor to Module
Offset Description
0 Write Block ID: 9960
1 to 239 Spare
This informs the module that the command has been processed and can be
cleared from the pass-through queue.
7.4.18 Pass-through Formatted Block for Function 23
Block 9961: Pass-through Formatted Block for Function 23
Block 9961: Request from Module to Processor
Offset Description
0 Read Block ID: 9961
1 Write Block ID: 9961
2 Number of word registers in Modbus data set
3 Starting address for Modbus data set
4 to 239 Data
The ladder logic is responsible for parsing and copying the received message
and performing the proper control operation as expected by the Master device.
The processor must then respond to the pass-through control block with an
output image write block with the following format.
Block 9961: Response from Processor to Module
Offset Description
0 Write Block ID: 9961
1 to 239 Spare
This informs the module that the command has been processed and can be
cleared from the pass-through queue.