Operating Instructions

Communication via PROFIBUS and PROFINET
3.3 PROFIdrive profile - Diagnostic channels
Fieldbuses
50 Function Manual, 04/2018, FW V4.7 SP10, A5E34229197B AE
3.3.2
Diagnostics with PROFIBUS
The following objects belonging to a diagnostics message in PROFIBUS
●
Standard diagnostics
– Sequence: always at the first position of the message
– Length is always 6 bytes
●
Identifier-related diagnostics
– Sequence: at the second, third or fourth position
– Identification using the header,
– For SINAMICS G120, the length is always 2 bytes
●
Status messages/module status
– Sequence: at the second, third or fourth position
– Identification using the header,
– Length for SINAMICS G120:
- 5 bytes for configuration using GSD
- 6 bytes when configuring using the object library
●
Channel-related diagnostics
– Sequence: at the second, third or fourth position
– Identification using the header,
– Length is always 3 bytes
●
Diagnostics alarm with DS0 / DS1
– Sequence: always at the last position of the message
– Slot-specific the actual state of the slot responsible for the message is transferred.
Note
Precondition for diagnostics via PROFIBUS
The master must operate in the DPV1 mode for diagnostics via Profibus.