MVI46-PDPMV1 ♦ SLC Platform
Mailbox Messaging
PROFIBUS DPV1 Master
User Manual
ProSoft Technology, Inc.
Page 79 of 160
March 25, 2011
Length
This parameter specifies the number of bytes of the data block to read. If the
server data block length is less than requested, the length of the response will be
the actual length of the data block. If the server data block is greater or equal, the
response will contain the same amount of data.
The slave may answer with an error response if data access is not allowed.
Data [1 … n]
Returned data.
Fault Information and Extended Fault Information
If "Invalid Other" is returned in the Message Information word in the header of the
response, information about the fault can be found here.
"Fault Information"
"Extended Fault Information" Contents
0100h
Address out of range
-
0A00h
Failed to execute request
Refer to Return Codes (page 91).
0B00h Remote station failure
1000h
Remote station DPV1 failure
Function_Number
1100h
Length out of range (>240 bytes)
-
1200h
Slave does not support DPV1
-
1300h
Slave not active or not present in
configuration
-
FE00h
Command not possible in "Class 2-
Only" mode
-
FF00h
Module offline (not initialized or no
valid database)
-
Error Decode, Error Code 1 and Error Code 2
If "Fault Information" contains error code 1000h, more information according to
the DPV1 specification can be found here.
4.2.7 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.
