Siemens SINAMICS G120P - Page 53

Communication via PROFIBUS and PROFINET
3.3 PROFIdrive profile - Diagnostic channels
Fieldbuses
Function Manual, 04/2018, FW V4.7 SP10, A5E34229197B AE
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Default diagnostics
The following values are decisive for the diagnostics:
•
Ext_Diag
: Group signal for diagnostics in the slave:
- 0: No fault is active
- 1: At least one alarm or fault is active
•
Ext_Diag_Overflow:
Display for the diagnostics overflow in the slave (for more than 240 bytes)
Identifier-related diagnostics
The identifier-related diagnostics provides a bit (KB_n) for each slot allocated when configuring the
device. If a diagnostics message is active at a slot, then it's KB_n = 1.
For G120 only one slot is allocated:
• KB_0 when configuring with the GSD
• KB_3 when configuring with the object manager