ProSoft Technology MVI69-PDPMV1 - Manual (Page 179)

MVI69-PDPMV1 ♦ CompactLogix or MicroLogix Platform Reference
PROFIBUS DPV1 Master User Manual
ProSoft Technology, Inc. Page 179 of 225
July 8, 2011
120 Words Block Format for Mailbox Out Message Request (Output Image)
Word Offset
Start End Name Description
0 0 Block ID Block number 100
1 120 Mailbox Message Mailbox output message for module (first 120 words
of mailbox message)
Word Offset
Start End Name Description
0 0 Block ID Block number 101
1 24 Mailbox Message Mailbox output message for module (last 24 words of
mailbox message)
25 120 Reserved Reserved for future use
After the module receives the mailbox request, it immediately sends a input block
with the same Block ID as confirmation that the mailbox request block was
received.
120 Words Block Format for Mailbox Out Message Response (Input Image)
Word Offset
Start End Name Description
0 0 Block ID Block number 100 or 101 (Same as original
requesting block IDs.)
1 1 Output Index Index of Output image to receive (1 to 8 for data, 0 or
-1 if no data)
2 2 Mailbox Status Status of out mailbox request
3 121 Reserved Reserved for future use