Mitsubishi Electric MELSEC iQ-R Series User Manual page 124

Error history data
Up to 15 errors generated in the module are recorded.
The following table shows the storage data for Error history data 1 (address: 0A00H to 0A0FH).
■Error history data 1 (address: 0A00H to 0A0FH)
Address b15
0A00H Error code
0A01H Order of generation
0A02H First two digits of the year
0A03H Month
0A04H Hour
0A05H Second
0A06H Error code details 1
0A07H Error code details 2
0A08H Error code details 3
0A09H Error code details 4
0A0AH Error code details 5
0A0BH Error code details 6
0A0CH Error code details 7
0A0DH Error code details 8
0A0EH System area
0A0FH
Ex.
The following table lists data to be stored and storage examples of each item of error history data.
Item
Error code
Order of generation
First two digits of the year/Last two digits
*2
of the year
*2
Month/Day
*2
Hour/Minute
*2
Second
Error code details 1 to Error code details
8
*1 Those values are for when the second error occurs at 13:30:50, September 1st, 2012.
*2 The clock information of the error that occurred is based on the clock information acquired from the Safety CPU of the master station.
When an error has occurred before the clock information is acquired from the Safety CPU, the error time is not recorded.
APPX
122
Appendix 4 Remote Buffer Memory
b14 b13 b12 b11
Description
The code of an error that has occurred is stored.
The order of error occurrence is stored.
(The value of 0H to FFFFH is stored.)
The items on the left are stored in BCD code.
The detailed information of some errors is stored.
The data to be stored depend on the error.
Page 98 Error code details
b10 b9 b8 b7
Last two digits of the year
Day
Minute
00H (fixed)
b6 b5 b4 b3
Storage example

0001H
2012H
0901H
1330H
5000H

b2 b1 b0
*1