ProSoft MVI56-PDPMV1 - Page 144

Mailbox Messaging MVI56-PDPMV1 ♦ ControlLogix Platform
User Manual PROFIBUS DPV1 Master
Page 144 of 251 ProSoft Technology, Inc.
The important section relevant to the Mailbox Messaging discussion is the
Incoming Mailbox Data section (Byte Offsets 79 to 222). Within this section of
data, the following structure exists:
Mailbox Message Structure: From MVI56 module
Word Offset
Type
Description
79
Message ID
Message ID value will match value used to
generate the outgoing mailbox message
80
Message Info
See individual commands for data values to be
entered in each of these register locations
81
Command
82
Data Size
83
Frame Count
84
Frame Number
85
Offset high
86
Offset Low
87
Extended Word 1
88
Extended Word 2
89
Extended Word 3
90
Extended Word 4
91
Extended Word 5
92
Extended Word 6
93
Extended Word 7
94
Extended Word 8
-
See individual commands
222