Lenze PROFIBUS E84AYCPM - Response to a Read Error

Lenze · E84AYCPM communication module (PROFIBUS®) · Communication Manual · DMS 5.0 EN · 11/2012 · TD17 68
9 Parameter data transfer
9.3 PROFIdrive parameter data channel (DP-V1)
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9.3.3.3 Response to a read error
Response header
Parameter format
 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 the chapter "Reading parameter data from the
inverter" ( 65).
• 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