Mailbox Messaging
MVI46-PDPMV1 ♦ SLC Platform
User Manual
PROFIBUS DPV1 Master
Page 78 of 160
ProSoft Technology, Inc.
March 25, 2011
Command and Response Layout: Acyclic Read
Command
Response
Message ID
(ID)
(ID)
Message information
4002h
0002h
Command
0020h
0020h
Acyclic Read
Data size
0000h
(Size of data)
Number of data bytes (n)
Frame count
0001h
0001h
Frame number
0001h
0001h
Offset high
0000h
0000h
Offset low
0000h
0000h
Extended word 1 Slave Addr. Slot Number
Slave Addr. Slot Number
Extended word 2
Index
Length
Index
Length
Extended word 3
-
-
Extended word 4
-
-
Extended word 5
-
Error
Decode
Extended word 6
-
Error Code 1 Error Code 2
Extended word 7
-
Extended Fault information
Extended word 8
-
Fault Information
Data 1
Response Data byte 1
Data 2
Response Data byte 1
Data 3
Response Data byte 1
...
...
Data n
Response Data byte 1
Message Information
Refer to Message Information (page 90).
Slave Address
Station address of the slave responder.
Slot Number and Slot Index
Used in the slave to address the desired data block.
