Error History Function - Mitsubishi Electric MELSEC iQ-F FX5 User Manual

Error history function

This function records up to 16 errors and alarms that occurred in a multiple input module to store them in the buffer memory
areas.
Operation
When an error occurs, the error code and error time are stored in order, beginning with Error history No. 1 (Un\G3600 to
Un\G3609).
When an alarm occurs, the alarm code and the alarm time are stored from Alarm history No. 1 (Un\G3760 to Un\G3769) in
order.
• Detail of the error code assignment
b15
Un\G3600
Un\G3601 First two digits of the year
Un\G3602
Un\G3603
Un\G3604
Un\G3605 Millisecond (upper)
Un\G3606
Un\G3609
• Detail of the alarm code assignment
b15
Un\G3760
Un\G3761 First two digits of the year
Un\G3762
Un\G3763
Un\G3764
Un\G3765 Millisecond (upper)
Un\G3766
Un\G3769
Ex.
Example of error history and alarm history storage
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 Monday, January 30th, 2017.
The start address of error history where the latest error is stored, can be found in 'Latest address of error history' (Un\G1).
The start address of alarm history where the latest alarm is stored, can be found in 'Latest address of alarm history' (Un\G3).
3 FX5-8AD
384
3.4 Functions
to b8 b7
Error code
Month
Hour
Second
System area
to b8 b7
Alarm code
Month
Hour
Second
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.
to b0
Last two digits of the year
Day
Minute
Day of the week
Millisecond (lower)
to b0
Last two digits of the year
Day
Minute
Day of the week
Millisecond (lower)
*1
Storage example
2017H
0130H
1035H
40H
1H
06H
28H