ProSoft Technology ControlLogix inRAx MVI56E-MNETR User Manual page 117

MVI56E-MNETR ♦ ControlLogix Platform
Modbus TCP/IP Interface Module with Reduced Data Block
The block number in word 20 of the block determines the data set of up to 40
output words to transfer from the processor. Ladder logic in the processor must
recognize these blocks and place the correct information in the output image to
be returned to the module. The following table describes the structure of the
response block.
Offset
0
1 to 40
41
Special Function Blocks
Special function blocks are optional blocks used to request special tasks from the
module.
Note: Event Commands and Command Control are not needed for normal Modbus command list
polling operations and are needed only occasionally for special circumstances.
Important: Each command defined in the command list is controlled by the ladder logic. The Write
Command Bits parameter must be set in ladder logic to allow the command to be sent out on the
Modbus TCP/IP network.
ProSoft Technology, Inc.
June 14, 2011
Description
1000 to 1124
Output Data to preset in module.
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