3 response after a read error, Communication manual 8400 protec profibus – Lenze E84Dxxxx User Manual
Page 51
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Communication manual 8400 protec PROFIBUS
Parameter data transfer
DP-V1 parameter data channel (PROFIdrive profile)
51
L
EDS84DPBUS EN 2.0 - 09/2010
Parameter value
8.3.3.3
Response after a read error
Response head
Parameter format
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
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: Parameters not read
• The data in the bytes 7 + 8 must be interpreted as
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