Siemens SINAMICS Series Operating Instructions Manual page 655

Alarm buffer, alarm history
The alarm buffer comprises the alarm code, the alarm value, and the alarm time (received,
resolved). The alarm history occupies the last indices ([8...63]) of the parameter.
Figure 10-100 Structure of alarm buffer
Alarms that occur are entered in the alarm buffer as follows:
A maximum of 64 alarms are displayed in the alarm buffer:
● Index 0 ... 6: The first 7 alarms are displayed.
● Index 7: The most recent alarm is displayed.
A maximum of 56 alarms are displayed in the alarm history:
● Index 8: The most recent alarm is displayed.
● Index 9 ... 63: The first 55 alarms are displayed.
SINAMICS DCM DC Converter
Operating Instructions, 12/2018, A5E34763375A
Descriptions of functions
10.34 Diagnostics
653