Mitsubishi Electric MELSEC iQ-R Series User Manual page 167

Alarm history
Up to 16 alarms that occurred in the module are recorded.
to
b15
Un\G3760
First two digits of the year
Un\G3761
Month
Un\G3762
Hour
Un\G3763
Second
Un\G3764
Millisecond (higher-order digits)
Un\G3765
Un\G3766
Un\G3769
Item
First two digits of the year/Last two digits of the
year
Month/Day
Hour/Minute
Second
Day of the week
Millisecond (upper)
Millisecond (lower)
*1 These values assume that an error occurs at 10:35 and 40.628 seconds on Friday, January 30th, 2015.
■Buffer memory address
The following shows the buffer memory address of this area.
Buffer memory name
Alarm history
Alarm history (in Q compatible mode)
CH1 Factory default setting
This area restores the offset/gain setting value in user range setting. For details, refer to the following.
Page 166 CH1 User range setting
b8 b7
to
Alarm code
Last two digits of the year
Day
Minute
Day of the week
Millisecond (lower-order digits)
System area
Storage contents
Stored in BCD code.
One of the following values is stored in BCD code.
Sunday: 0, Monday: 1, Tuesday: 2, Wednesday: 3
Thursday: 4, Friday: 5, Saturday: 6
Stored in BCD code.
No.1 to No.16
3760 to 3919
3760 to 3919
b0
Appendix 3 Buffer Memory Areas
*1
Storage example
2015H
0130H
1035H
40H
5H
06H
28H
A
APPX
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