ProSoft Technology PTQ-PDPMV1 User Manual

Page 169

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PTQ-PDPMV1 ♦ Quantum Platform

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PROFIBUS DP Master Network Interface Module for Quantum

User Manual

ProSoft Technology, Inc.

Page 169 of 306

August 12, 2014

Command and Response Layout: Acyclic Write

Command

Response

Message ID

(ID)

(ID)

Message information

0240h

0200h

Command

2100h

2100h

Acyclic Write

Data size

(Size of data)

(Size of data)

Number of data bytes (n)

Frame count

0100h

0100h

Frame number

0100h

0100h

Offset high

0000h

0000h

Offset low

0000h

0000h

Extended word 1

Slot

Slave Addr.

Slot

Slave Addr.

Extended word 2

Length

Index

Length

Index

Extended word 3

-

-

Extended word 4

-

-

Extended word 5

-

Error

Decode-

Extended word 6

-

Error Code 2 Error Code 1

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

Message Information
Refer to Message Information (page 180).

Slave Address
Station address of the slave responder.

Slot Number and Slot Index
Used in the slave to address the desired data block.

Length
This parameter specifies the number of bytes that have to be written. If the
destination data block size is less than requested, the response will contain an
error message. If the data block length is greater than or equal to the requested
length, the response contains the number of bytes that have been written. The
slave may answer with an error response if data access is not allowed.

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