Lenze E84Dxxxx - Manual (Page 41)

Communication manual 8400 protec PROFIBUS
Parameter data transfer
DP-V0 parameter data channel (DRIVECOM profile)
41
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EDS84DPBUS EN 2.0 - 09/2010
8.2.5 Bytes 5 ... 8: Parameter value / error information
The status bit 7 in the service byte determines the meaning of this data field:
8.2.5.1 Parameter value (data)
Depending on the data format, the length of the parameter value is between 1 and 4 bytes.
 Data is saved in the Motorola format, i.e. first the high byte (high word), then the low
byte (low word):
 Principle for the assignment of bytes 5 ... 8 with parameter values of different lengths:
Byte 1 Byte 2 Byte 3 Byte 4 Byte 5 Byte 6 Byte 7 Byte 8
Service Subindex Index
High byte
Index
Low byte
Data 4 /
Error 4
Data 3 /
Error 3
Data 2 /
Error 2
Data 1 /
Error 1
Status bit Meaning of bytes 5 ... 8
0 Bytes 5 ... 8 contain the parameter value (data 1 ... 4 ).
 Parameter value (data) ( 41)
1 Bytes 5 ... 8 contain an error message (error 1 ... 4) due to an invalid access.
 Error codes ( 42)

Note!
Strings or data blocks cannot be transmitted.
Byte 5 Byte 6 Byte 7 Byte 8
High byte Low byte High byte Low byte
High word Low word
Double word
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)