ProSoft Technology MVI46-PDPMV1 User Manual

Page 78

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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.

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