Siemens SINAMICS G220 - Page 748

The converter moves resolved alarms from the alarm bu󹪜er to the alarm history as follows:
1. To create space after position [8] in the alarm history, the converter shifts the alarms already
stored in the alarm history "down" by one or more positions.
If the alarm history is completely full, the converter will delete the oldest alarms.
2. The converter moves the removed alarms from the alarm bu󹪜er to the now freed up positions
of the alarm history.
Alarms that have not been resolved remain in the alarm bu󹪜er.
3. Gaps can appear in the alarm bu󹪜er as a result of resolved alarms being moved to the alarm
history. The converter closes these gaps by moving unresolved alarms up. If there are more
than 8 active alarms, active alarms not previously visible are added to the alarm bu󹪜er. The
alarm bu󹪜er is resorted.


Active alarm buffer
Incoming alarm when
active alarm buffer is
completely full
Alarm history
Removed alarm
old
new
new
old
Alarm time received
Alarm time removed
[0]
[1]
[2]
[3]
[5]
[4]
[6]
[7]
[8]
[9]
[62]
[61]
[63]
Figure15-3 Alarm history
Parameters
The following list contains the parameters of the "Alarm bu󹪜er and alarm history" function.
Number Name Unit
r2111 Alarm counter 
p2118[0...19] Change message type message number 
p2119[0...19] Change message type type 
r2122[0...63] Alarm code 
r2123[0...63] Alarm time received in milliseconds [ms]
r2124[0...63] Alarm value 
r2125[0...63] Alarm time removed in milliseconds [ms]
r2132 Actual alarm code 
r2134[0...63] Alarm value for 󹪞oat values 
r3121[0...63] Component alarm 
r3123[0...63].0...20 Diagnostic attribute alarm 
System messages
15.6Alarm bu󹪜er
SINAMICS G220 converter
746 Operating Instructions, 04/2024, FW V6.2, A5E51781573B AB