User manual

Technical Information
Message Mapping
5
Each nibble (4 bits) in the bytes following the interface status
byte, represents the status of the last attempt to write a parameter
with following coding (diag status byte):
1. Write success
2. Protocol error (checksum error on low speed network)
3. Invalid channel
4. Invalid data
5. Invalid channel
6. Range error
7. Format error
8. Write not allowed while HV ON
9. Write not allowed while HV OFF
10. Write allowed only in serial mode
The Profibus external diagnosis services are used to report following
unexpected situations:
Controller Fails
If the controller switches to fail mode, an external diagnostic service
is required and one byte in the diagnostic buffer signals the type of
failure.
User Parameter Mismatch
If the user sets one or more parameters out of their allowed range, a
Profibus external diagnostic service is required and some bits in the
diagnosis frame signals which parameter is wrong (i.e. over range or
under range)
TSP Profibus Gateway User Manual / 87-900-119-01 (C) 49/58