ProSoft Technology MVI56E-MCM/MCMXT User Manual

Page 128

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Reference

MVI56E-MCM ♦ ControlLogix Platform

User Manual

Modbus Communication Module

Page 128 of 199

ProSoft Technology, Inc.

June 18, 2014

Master Command Data List (6000 to 6012 or 6100 to 6112)
Each port on the module can be configured as a Modbus Master device
containing its own list of 325 commands (for modules with firmware version 3.01
or higher and Add-on-Instruction version 2.8 or higher). The commands are read
from the processor using the following Write Block IDs: Modbus Port 1: 6000 to
6012, and Modbus Port 2: 6100 to 6112. The module will sequentially poll for
each block from the processor. Ladder logic must handle all of the data transfers.
The following table describes the structure of each block.

Configuration Block from Processor to Module

Word Offset

Description

Length

0

6000 to 6012 and 6100 to 6112

1

1 to 8

Command Definition

8

9 to 16

Command Definition

8

17 to 24

Command Definition

8

25 to 32

Command Definition

8

33 to 40

Command Definition

8

41 to 48

Command Definition

8

49 to 56

Command Definition

8

57 to 64

Command Definition

8

65 to 72

Command Definition

8

73 to 80

Command Definition

8

81 to 88

Command Definition

8

89 to 96

Command Definition

8

97 to 104

Command Definition

8

105 to 112

Command Definition

8

113 to 120

Command Definition

8

121 to 128

Command Definition

8

129 to 136

Command Definition

8

137 to 144

Command Definition

8

145 to 152

Command Definition

8

153 to 160

Command Definition

8

161 to 168

Command Definition

8

169 to 176

Command Definition

8

177 to 184

Command Definition

8

185 to 192

Command Definition

8

193 to 200

Command Definition

8

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