ProSoft Technology MVI69-PDPMV1 - Manual (Page 182)

Reference MVI69-PDPMV1 ♦ CompactLogix or MicroLogix Platform
User Manual PROFIBUS DPV1 Master
Page 182 of 225 ProSoft Technology, Inc.
July 8, 2011
120 Words Block Format for Mailbox In Message (Input Image)
When the Block Transfer Size = 120, it takes two Output blocks to form one
complete mailbox message request. Each Output block will be responded to with
a corresponding Input block with the same ID number.
Note: Since the same two Output Block IDs are always used for 120-word block format requests,
the Input Block IDs will always be the same two numbers, as well, 100 and 101.
Word Offset
Start End Name Description
0 0 Block ID Block number 100
1 1 Output Index Index of Output image to receive (1 to 8 for data, 0 or
-1 if no data)
2 121 Mailbox Message Mailbox input message from module (first 120 words
of mailbox message)
Word Offset
Start End Name Description
0 0 Block ID Block number 101
1 1 Output Index Index of Output image to receive (1 to 8 for data, 0 or
-1 if no data)
2 25 Mailbox Message Mailbox input message from module (last 24 words of
mailbox message)
26 121 Reserved Reserved for future use