Diagnostics With Profibus - Siemens SINAMICS G110M Function Manual

Reading out diagnostics data
The control requests the diagnostics data from the inverter using "Read data set", e.g. using
a read record with index 800C hex.
The following rules apply:
● 1 Message block (=ChannelDiagnosisData)
if (one or several) faults of the same message class are detected at the inverter
● n message blocks
if at the inverter, n faults of different message classes are detected
Further information is provided in the Internet: To access this link, you must be a member of
PROFIBUS and PROFINET International (PI).
PROFINET IO specification
standards/downloads/profinet-io-specification/display/)
3.1.3.2

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:
● 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.
Fieldbuses
Function Manual, 01/2016, FW V4.7 SP6, A5E34229197B AC
(http://www.profibus.com/nc/download/specifications-
- 5 bytes for configuration using GSD
- 6 bytes when configuring using the object library
Communication via PROFIBUS and PROFINET
3.1 PROFIdrive profile
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