User guide

86
9 RS485 Communication
9.9.3 Error flags
Bit Meaning
7 Error, parameters are still inconsistent and cannot be saved
6 Errors occur on writing the data flash
5 No parameters changed, no data saved
4 Incorrect access key, no data saved
9.10 Write parameter
Writes a value in the parameter memory.
9.10.1 Request
RS485 Char Use Value / Comment
1 Start byte COM_CRX_PARAMETER_WR
2 Address byte Bus address
3 Parameter No.
4 Parameter No. 0...65535
5 Parameter Hi parameter to be written
6 Parameter Lo
7 Checksum
9.10.2 Answer
RS485 Char Use Value / Comment
1 Start byte COM_CTX_PARAMETER_WR
2 Address byte Bus address
3 Parameter No.
4 Parameter No. 0...65535
5 Parameter Hi written parameter
6 Parameter Lo
7 Parameter No. Hi 0, if no conflict exists
8 Parameter No. Lo If conflict exists, No. of the colliding (clashing) parameter
9 Status byte
10 Checksum