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Reference MVI69-PDPMV1
♦
CompactLogix or MicroLogix Platform
User Manual
PROFIBUS DPV1 Master
Page 178 of 225
ProSoft Technology, Inc.
July 8, 2011
Output Mailbox
The Output Mailbox blocks request a mailbox messages be sent by the module
to slaves on the PROFIBUS network.
240 Words Block Format for Mailbox Out Message Request (Output Image)
Word Offset
Start End Name
Description
0
0
Block ID
Block number 100 to 109
1
144
Mailbox Message
Mailbox output message for module
145
240
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.
240 Words Block Format for Mailbox Out Message Response (Input Image)
Word Offset
Start End Name
Description
0 0 Block
ID
Block number 100 to 109 (Same as original
requesting block ID.)
1 1 Output
Index
Index of Output image to receive (1 to 4 for data, 0 or
-1 if no data)
2
2
Mailbox Status
Status of out mailbox request
3
241
Reserved
Reserved for future use