ProSoft Technology MVI56-PDPMV1 - Manual (Page 164)

Mailbox Messaging MVI56-PDPMV1 ♦ ControlLogix Platform
User Manual PROFIBUS DPV1 Master
Page 164 of 255 ProSoft Technology, Inc.
March 22, 2011
3.5.7 Mailbox Message: Acyclic Data Write: Class 1
This command initiates a DPV1 Class 1 acyclic write request. Refer to EN50170
(DPV1) for more information.
Parameter Description
Command Initiator Application
Command Name MSAC1 WRITE
Command Number 2100h
Fragmented No
Extended Header Data Fault information may be returned in the header of the response.
Command and Response Layout: Acyclic Write
Command Response
Message ID (ID) (ID)
Acyclic Message Status
Word
4002h 0002h
Command 0021h 0021h Acyclic Write
Data size (Size of data) (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
Message Data byte 1 Data 1 Data 1
Message Data byte 2 Data 2 Data 2
Message Data byte 3 Data 3 Data 3
... ... ...
Message Data byte n Data n Data n
Acyclic Message Status Word
Refer to Acyclic Message Status Word (page 173).