Prosoft-technology MVI69E-MBS Manual do Utilizador descarregar pdf (Página 146)

Reference MVI69E-MBS ♦ CompactLogix Platform

User Manual Communication Module

Page 146 of 162 ProSoft Technology, Inc.

January 6, 2014

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 9960: Response from Processor to Module

Offset

Description

Write Block ID: 9960

1 to n

Spare (Length in words = n - 2)

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

Read Block ID: 9961

Write Block ID: 9961

Number of word registers in Modbus data set

Starting address for Modbus data set

4 to (n+1)

Data (Length in words = n - 2)

Where n = 60, 120, or 240 depending on the Block Transfer Size parameter.

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

Write Block ID: 9961

1 to n

Spare (Length in words = n - 2)

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 MVI69E-MBS Manual do Utilizador Página 146