Omron KM50 Communications Manual page 83

Section 3 CompoWay/F Communications Data
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E2: Alarm History
The history of alarms that occurred in the past can be read.
Up to 10 alarms that occurred in the past can be read out. The smaller the address is, the newer
the information is. If more than 10 alarms occur, the oldest alarms in the history will be deleted.
Data is not saved when power is interrupted. Only the alarms that occur while power supply is ON
can be read out from the history.
The 13 types of alarms that are listed in the following table can be read out. (This includes "No
alarm.")
Table: List of Alarm Types
Read out value
0000 0000 hex
0000 0001 hex
0000 0002 hex
0000 0003 hex
0000 0004 hex
0000 0005 hex
0000 0006 hex
0000 0007 hex
0000 0008 hex
0000 0009 hex
0000 000A hex
0000 000B hex
0000 000C hex
Variable Address
type
E2 0000
E2 0001
E2 0002
E2 0003
E2 0004
E2 0005
E2 0006
E2 0007
E2 0008
E2 0009
E2 000A
E2 000B
E2 000C
E2 000D
E2 000E
E2 000F
E2 0010
E2 0011
E2 0012
E2 0013
E2 0014
3-42
No alarm
Instantaneous active power upper limit alarm
Instantaneous active power lower limit alarm
Instantaneous regenerative power upper limit alarm
Instantaneous regenerative power lower limit alarm
Current upper limit alarm
Current lower limit alarm
Voltage upper limit alarm
Voltage lower limit alarm
Power factor upper limit alarm
Power factor lower limit alarm
Instantaneous active power lower limit alarm
Instantaneous reactive power lower limit alarm
Parameter
Alarm Type Refer to Table: List of Alarm Types.
Date and Time MMDD hhmm hex*
Alarm
of Occurrence
Record 1
Date and Time MMDD hhmm hex*
Cleared
Alarm Type Refer to Table: List of Alarm Types.
Date and Time MMDD hhmm hex*
Alarm
of Occurrence
Record 2
Date and Time MMDD hhmm hex*
Cleared
Refer to Table: List of Alarm Types.
Alarm Type
Date and Time MMDD hhmm hex*
Alarm
of Occurrence
Record 3
Date and Time MMDD hhmm hex*
Cleared
Alarm Type Refer to Table: List of Alarm Types.
Date and Time MMDD hhmm hex*
Alarm
of Occurrence
Record 4
Date and Time MMDD hhmm hex*
Cleared
Alarm Type Refer to Table: List of Alarm Types.
Date and Time MMDD hhmm hex*
Alarm
of Occurrence
Record 5
Date and Time MMDD hhmm hex*
Cleared
Alarm Type Refer to Table: List of Alarm Types.
Date and Time MMDD hhmm hex*
Alarm
of Occurrence
Record 6
Date and Time MMDD hhmm hex*
Cleared
Alarm Type Refer to Table: List of Alarm Types.
Date and Time MMDD hhmm hex*
Alarm
of Occurrence
Record 7
Date and Time MMDD hhmm hex*
Cleared
Alarm type
Set value (monitor value)