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197
APPX
A
Appendix
3 Det
a
ils of
Rem
o
te
Buf
fer Me
mory
(17)Error history data
Up to 15 errors occurred in the module are stored.
The following shows the contents stored in Error history 1 (address: 0A00H to 0A0FH).
*1
This example assumes that a second error has occurred at 13:30:50 on November 1, 2014.
*2
The clock information of the error that occurred is based on the clock information acquired from the CPU module of the
master station.
When an error has occurred before the clock information is acquired from the CPU module, the error time is not
recorded.
Error history 2 to Error history 15 (address: 0A10H to 0AEFH) are stored in the same format as that of Error
history 1 (address: 0A00H to 0A0FH).
For the error codes, refer to the following:
• Error Code List (
(a) Storage order
The latest error is stored in Error history 1 (address: 0A00H to 0A0FH).
Errors that occurred in the past are stored in Error history 2 to Error history 15 (address: 0A10H to 0AEFH) in
reverse chronological order.
If 16 or more errors occur, errors are deleted from the oldest.
Item
Contents
Storage example
Error code
The error code of the error that occurred is stored.
Order of generation
The order of error occurrence is stored. (A value in the range of 0 to
65535 is stored.)
0001H
First two digits of the year/Last
two digits of the year
The items on the left are stored in BCD code.
2014H
Month/Date
1101H
Hour/Minute
1330H
Second/00H (Fixed)
5000H
CH1 Digital value
The value of CH
Digital value (RWw2 to RWw5, RWw12 to
RWw15) when an error occurs is stored.
CH2 Digital value
CH3 Digital value
CH4 Digital value
b15
to
b8
b7
b0
to
Error code
First two digits of year
Last two digits of year
Month
Day
Hour
Minute
Second
System area
Number of chronological order
CH1 Digital value
CH2 Digital value
CH3 Digital value
00H (fixed)
CH4 Digital value
0A00H
0A01H
0A02H
0A03H
0A04H
0A05H
0A06H
0A07H
0A08H
0A09H
0A0AH
0A0FH
to
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