Error History Function - Mitsubishi Electric MELSEC iQ-R Series User Manual

1.16

Error History Function

This function stores up to the latest 16 errors and alarms that occurred in the D/A converter module to the buffer memory
area.
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 code 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
to
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
Millisecond (Upper)
Un\G3765
Un\G3766
to
Un\G3769
Ex.
Storing example of error history and alarm history
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 Values stored when an error occurs at 12:34:56.789 on Monday, June 30th, 2014.
The start address of Error history where the latest error is stored can be checked in 'Latest address of error history' (Un\G1).
The start address of Alarm history where the latest alarm is stored can be checked in 'Latest address of alarm history'
(Un\G3).
1 FUNCTIONS
84
1.16 Error History Function
b8 b7
to
Error code
Last two digits of the year
Month
Hour
Second
System area
b8 b7
to
Alarm code
Last two digits of the year
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.
b0
to
Day
Minute
Day of the week
Millisecond (Lower)
b0
to
Day
Minute
Day of the week
Millisecond (Lower)
*1
Storage example
2014H
630H
1234H
56H
1H
7H
89H