Siemens Sinamics S110 Function Manual page 111

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 5-13
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.
Properties of the alarm buffer/alarm history:
● The arrangement in the alarm buffer is made after the time that they occurred from 7 to 0.
● If 8 alarms have been entered into the alarm buffer, and a new alarm is received, then the
Function Manual
Function Manual, 01/2011, 6SL3097-4AB10-0BP3
Structure of alarm buffer
In the alarm history, this is from 8 to 63.
alarms that have been resolved are transferred into the alarm history.
Diagnostics
5.3 Fault and alarm messages
109