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

Error history function

Records up to 16 errors and alarms that occurred in an analog input module to store them in the buffer memory areas.
Operation
When an error occurs, the error code and the error time are stored from Error history No. 1 (Un\G3600 to Un\G3609) in order.
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 to
Un\G3600
Un\G3601 First two digits of the year
Un\G3602 Month
Un\G3603 Hour
Un\G3604 Second
Millisecond (upper)
Un\G3605
Un\G3606
Un\G3609
• Detail of the alarm code assignment
b15 to
Un\G3760
Un\G3761 First two digits of the year
Un\G3762 Month
Un\G3763 Hour
Un\G3764 Second
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).
b8 b7 to
Error code
Last two digits of the year
Day
Minute
Day of the week
Millisecond (lower)
System area
b8 b7 to
Alarm code
Last two digits of the year
Day
Minute
Day of the week
Millisecond (lower)
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.
b0
b0
1
*1
Storage example
2017H
0130H
1035H
40H
1H
06H
28H
1 FX5-4AD
79
1.4 Functions