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

1.12

Error History Function

This function records up to 16 errors and alarms that occurred in a temperature input module to store them in the buffer
memory areas.
Operation of the error history function
When an error occurs, the error code and the error time are stored from Error history 1 (Un\G3600 to Un\G3605) in order.
When an alarm occurs, the alarm code and the alarm time are stored from Alarm history 1 (Un\G3760 to Un\G3765) in order.
The error time and alarm time are stored as shown below.
Ex.
The following figures are examples of Error history 1 and Alarm history 1.
• Error history detail
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
• Alarm history detail
b15
Un\G3760
First two digits of the year
Un\G3761
Un\G3762
Un\G3763
Un\G3764
Millisecond (higher-order digits)
Un\G3765
Un\G3766
Un\G3769
Item
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)
*1 These values assume that an error or alarm occur at 10:35 and 40.628 seconds on Friday, January 30th, 2015.
1 FUNCTIONS
62
1.12 Error History Function
to
b8 b7
Error code
Month
Hour
Second
Millisecond (lower-order digits)
System area
to
b8 b7
Alarm code
Month
Hour
Second
Millisecond (lower-order digits)
System area
b0
to
Last two digits of the year
Day
Minute
Day of the week
b0
to
Last two digits of the year
Day
Minute
Day of the week
Storage contents
Stored in BCD code.
One of the following values is stored in BCD code.
• Sunday: 00H
• Monday: 01H
• Tuesday: 02H
• Wednesday: 03H
• Thursday: 04H
• Friday: 05H
• Saturday: 06H
Stored in BCD code.
*1
Storage example
2015H
0130H
1035H
40H
05H
0628H