ProSoft MVI56-PDPMV1 - Page 146

Mailbox Messaging MVI56-PDPMV1 ♦ ControlLogix Platform
User Manual PROFIBUS DPV1 Master
Page 146 of 251 ProSoft Technology, Inc.
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