ProSoft Technology MVI56-PDPMV1 User Manual

Page 149

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MVI56-PDPMV1 ♦ ControlLogix Platform

Mailbox Messaging

PROFIBUS DPV1 Master

User Manual

ProSoft Technology, Inc.

Page 149 of 255

March 22, 2011

Mailbox Message Structure: To MVI56 Module

Word Offset

Type

Description

0

Message ID

Processor logic or user-set. The Message ID field is used
by the MVI56 module to detect a new message in the

PROFIBUS output data image.
When a non-zero value is detected, the message is

processed immediately. The sample ladder logic assigns

specific message IDs to different mailbox messages.

1

Message Info

See individual commands for data values to be entered in

each of these register locations

2

Command

3

Data Size

4

Frame Count

5

Frame Number

6

Offset high

7

Offset Low

8

Extended Word 1

9

Extended Word 2

10

Extended Word 3

11

Extended Word 4

12

Extended Word 5

13

Extended Word 6

14

Extended Word 7

15

Extended Word 8

-

See individual

commands

149

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