3 data transfer abort by the controller, 4 data transfer abort by the master, Data transfer abort by the master ( 39) – Lenze E84Dxxxx User Manual

Page 39: Communication manual 8400 protec profibus

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Communication manual 8400 protec PROFIBUS

Parameter data transfer

DP-V0 parameter data channel (DRIVECOM profile)

39

L

EDS84DPBUS EN 2.0 - 09/2010

8.2.2.3

Data transfer abort by the controller
The error telegram is used to abort the transfer.

The error telegram is marked by a set status bit in the service byte.

The telegram can either be effected as a response to an "Initiate Read/Write Service or

to a Read/Write Segment Service".

Controller response in case of an error:

8.2.2.4

Data transfer abort by the master
With this telegram, the master is able to abort a running segment transmission.

The error telegram is marked by a set status bit in the service byte.

The service byte also contains the request code "4" (100

bin

).

Bit 4 and bit 5 in the service byte (data length) are without meaning.

Additional information (subindex, index, error information) is not transmitted.

Controller response in case of faultless execution:
The controller confirms the error telegram of the master by also sending an error telegram.

The error telegram is marked by a set status bit in the service byte.

In case of faultless execution, the telegram contains the error information

"0x00000000" in bytes 5 ... 8.

Additional information (subindex, index) is not transmitted.

Byte 1

Byte 2

Byte 3

Byte 4

Byte 5

Byte 6

Byte 7

Byte 8

Service

Subindex

Index

High byte

Index

Low byte

Data 4 /

Error 4

Data 3 /

Error 3

Data 2 /

Error 2

Data 1 /

Error 1

1t110000

SIDX

IDXH

IDXL

Error Class

Error code

Additional

Code High

Additional

Code Low

Byte 1

Byte 2

Byte 3

Byte 4

Byte 5

Byte 6

Byte 7

Byte 8

Service

Reserved

Reserved

Reserved

Reserved

Reserved

Reserved

Reserved

1txx0100

0

0

0

0

0

0

0

Byte 1

Byte 2

Byte 3

Byte 4

Byte 5

Byte 6

Byte 7

Byte 8

Service

SIDX

IDXH

IDXL

Error Class

Error code

Additional

Code High

Additional

Code Low

1t110000

0

0

0

0

0

0

0

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