Prosoft-technology MVI69L-MBS Manual do Utilizador descarregar pdf (Página 136)

Reference MVI69L-MBS ♦ CompactLogix Platform

User Manual Communication Module

Page 136 of 154 ProSoft Technology, Inc.

January 6, 2014

7.4.14 Pass-through Formatted Block for Functions 6 and 16 with

Float Data Block

Block 9957: Pass-through Formatted Block for Functions 6 and 16 with Float

Data Block

Block 9957: Request from Module to Processor

Offset

Description

Read Block ID: 9957

Write Block ID: 9957

Number of word registers in Modbus data set

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 block with a write block

with the following format.

Block 9957: Response from Processor to Module

Offset

Description

Write Block ID: 9957

1 to 239

Spare

This informs the module that the command has been processed and can be

cleared from the pass-through queue.

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Prosoft-technology MVI69L-MBS Manual do Utilizador Página 136