Lenze E84DGFCP Bedienungsanleitung PDF herunterladen (Seite 57)

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EDS84DMOTPBUS EN 3.0 - 11/2011 L 57

Communication manual 8400 motec PROFIBUS

Parameter data transfer

PROFIdrive parameter data channel (DP-V1)

Parameter value

9.3.3.3 Response to a read error

Response header

Byte 7 Byte 8 Byte 9 Byte 10

Value

Field Data type Values

Value String Any (length > 4 bytes possible)

U8 0x00 .... 0xFF

U16 0x0000 .... 0xFFFF

U32 0x0000 0000 .... 0xFFFF FFFF

 Note!

In the case of a multi-parameter request, correct and possible faulty messages

are summarised in one telegram. They have the following data contents:

• Correct message:

– Format: data type of the value requested

– Number of values: as described in chapter "Reading parameter data from

the controller" ( 55).

– Parameter value: value requested

• Faulty message

– Format: 0x44

– Number of values: 0x01 or 0x02

– Error code without additional information (for number of values = 0x01) or

– Error code with additional information (for number of values = 0x02)

A faulty access to a parameter "n" is indicated at the nth position in the response

telegram of a multi-parameter request.

Byte 1 Byte 2 Byte 3 Byte 4

Request reference

(mirrored)

Response identification Axis

(mirrored)

Number of indices

Field Data type Values

Request reference U8 Mirrored value of the parameter request

Response identification U8 0x81: Parameter has not been read

• The data in the bytes 7 + 8 must be interpreted as an

error code.

Axis U8 0x00 or 0x01

Number of indices U8 0x"n" (n = number of parameters requested)

1 2 ... 52 53 54 55 56 57 58 59 60 61 62 ... 99 100

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