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9 Parameter data transfer

9.3 PROFIdrive parameter data channel (DP-V1)

Lenze · E94AYCPM communication module (PROFIBUS®) · Communication Manual · DMS 12.0 EN · 11/2012 · TD17

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9.3.3.3 Response to a read error

Response header

Parameter format

 Note!

In case of a multi-parameter request, correct and possibly faulty messages are

summarised in one telegram.

Correct message

• Format: data type of the value requested

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

controller" ( 61).

• 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)

Byte 5 Byte 6

Format Number of values

Field Data type Values

Format U8 0x44: Error

Number of values U8 0x01: Error code without additional information

0x02: Error code with additional information

1 2 ... 59 60 61 62 63 64 65 66 67 68 69 ... 124 125

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Lenze E94AYCPM Uživatelský manuál Strana 64