Mitsubishi Electric MELSEC iQ-R Series User Manual page 166

Error history
Up to 16 errors that occurred in the module are recorded.
b15
Un\G3600
First two digits of the year
Un\G3601
Un\G3602
Un\G3603
Un\G3604
Millisecond (higher-order digits)
Un\G3605
Un\G3606
Un\G3609
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
Error history
Error history (in Q compatible mode)
APPX
164
Appendix 3 Buffer Memory Areas
to
b8 b7
Error code
Month
Hour
Second
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
3600 to 3759
1810 to 1969
b0
to
Last two digits of the year
Day
Minute
Day of the week
*1
Storage example
2015H
0130H
1035H
40H
5H
06H
28H