Parameter data transfer
PROFIdrive parameter data channel
PROFIdrive DP−V0
l
66
EDS82ZAFPC201 EN 4.0
Bytes 5 ... 8: Parameter value (data)
Byte 1
Byte 2
Byte 3
Byte 4
Byte 5
Byte 6
Byte 7
Byte 8
Parameter identification
(PKE)
Subcode
(IND)
Reserved
Parameter value (PWE)
Depending on the data format, the length of the parameter value is between 1 to 4 bytes.
Data are saved in the Motorola format, i.e. first the high byte/high word, then the low
byte/low word.
Byte 5
Byte 6
Byte 7
Byte 8
High byte 1
Low byte 1
High byte 2
Low byte 2
High word
Low word
Double word
ƒ
Assignment of bytes 5 ... 8 with parameter values of different lengths
Byte 5
Byte 6
Byte 7
Byte 8
Parameter value
(length 1)
00
00
00
Parameter value (length 2)
00
00
Parameter value (length 4)
ƒ
A slave provides the response until the master creates a new request.
ƒ
For responses containing parameter values, the slave always replies with the current
value (cyclic processing).
Byte 7 / 8: Error number
Byte 1
Byte 2
Byte 3
Byte 4
Byte 5
Byte 6
Byte 7
Byte 8
Parameter identification
(PKE)
Subcode
(IND)
Reserved
00
00
Error number
Error number
Meaning
0
Wrong code number
1
Parameter value can only be read
2
Value range exceeded
3
Wrong subindex
4
No array
5
Wrong data type (wrong data length)
17
Wrong operating status