Alarm buffer, alarm history
An alarm in 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 3-13
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.
Commissioning Manual
Commissioning Manual, (IH1), 01/2012, 6SL3097-4AF00-0BP2
Structure of alarm buffer
Diagnostics
3.5 Fault and alarm messages
241