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APPX
Appendix 4 Buffer Memory Areas
Alarm history
Up to 16 alarms that occurred in the module are recorded.
*1 These values assume that an error occurs at 10:35 and 40.628 seconds on Monday, January 30th, 2017.
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Buffer memory address
The following shows the buffer memory address of this area.
Item
Storage contents
Storage example
First two digits of the year/Last two digits of the
year
Stored in BCD code.
2017H
Month/Day
0130H
Hour/Minute
1035H
Second
40H
Day of the week
One of the following values is stored in BCD code.
Sunday: 0, Monday: 1, Tuesday: 2, Wednesday: 3, Thursday: 4,
Friday: 5, Saturday: 6
1H
Millisecond (upper)
Stored in BCD code.
06H
Millisecond (lower)
28H
Buffer memory name
No.1 to No.16
Alarm history
3760 to 3919
Alarm history (in FX2N allocation mode function)
8760 to 8919
b15
b8 b7
b0
…
Alarm code
First two digits of the year
Last two digits of the year
Month
Day
Hour
Minute
Second
Day of the week
Millisecond (higher-order digits)
Millisecond (lower-order digits)
Un\G3760
Un\G3764
Un\G3763
Un\G3762
Un\G3761
Un\G3765
Un\G3766
Un\G3769
to
to
System area
Summary of Contents for MELSEC iQ-F
Page 1: ...MELSEC iQ F FX5 User s Manual Analog Control Intelligent function module ...
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Page 9: ...7 MEMO ...
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