Prosoft-technology MVI46-MCM Bedienungsanleitung PDF herunterladen (Seite 68)

Reference MVI46-MCM ♦ SLC Platform

User Manual Modbus Communication Module

Page 68 of 108 ProSoft Technology, Inc.

March 29, 2011

Block Request from Processor to Module

M1 Offset Description Length

7800 3000 or 3100 1

7801 Number of Slaves in Block 1

7802 to 7927 Slave Indexes 126

The module will respond with a block with the same identification code received

and indicate the number of slaves acted on with the block.

Block Response from Module to Processor

M0 Offset Description Length

0 3000 or 3100 1

1 Number of Slaves Processed 1

Ladder logic can be written to override the value in the slave status table to

enable the slave (state value of 1) by sending a special block. Port 1 slaves are

enabled using block 3001, and Port 2 slaves are enabled using block 3101. Each

block contains the slave node addresses to enable.

Block Request from Processor to Module

M1 Offset Description Length

7800 3001 or 3101 1

7801 Number of Slaves in Block 1

7802 to 7927 Slave Indexes 126

The module will respond with a block with the same identification code received

and indicate the number of slaves acted on with the block.

Block Response from Module to Processor

M0 Offset Description Length

0 3001 or 3101 1

1 Number of Slaves Processed 1

1 2 ... 63 64 65 66 67 68 69 70 71 72 73 ... 107 108

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Prosoft-technology MVI46-MCM Bedienungsanleitung Seite 68