6.3 Main Commands
6-13
6.3.7 Clear Alarm or Warning (ALM_CLR: 06H)
* Alarm occurrence history is saved on E
2
PROM, and will not be lost if power goes OFF.
• Details of ALM_CLR_MOD
Byte ALM_CLR Description
Command Response
1 06H 06H Processing
classifications
Control com-
mand group
Synchronization
classifications
Asynchronous
2 ALARM Processing time Refer to
• Details of
ALM_CLR_MOD
Subcommand Cannot be used
3STATUS• Clears the following alarm or warning status.
- Current alarm/warning status
- Alarm status history * (warning history is not preserved.)
• The ALM_CLR_MOD specifications are shown in the following table.
• A warning will occur and the command will be ignored in the following cases.
- During phases other than phases 2 and 3: Command warning1 (A.95A)
- If a Digital Operator is connected: Command warning1 (A.95A)
- If ALM_CLR_MOD is not within range: Data setting warning2 (A.94B)
4
5 ALM_CLR_
MOD
ALM_CLR_
MOD
6
7
8
9
10
11
12
13
14
15
16 WDT RWDT
ALM_CLR_MODE Description Processing Time
0
Clear current alarm/warning status Within 200 ms
1
Clear alarm status history Within 2 s
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