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Error history data
Up to 15 errors generated in the module are recorded.
The following table and figure show the storage data for Error history data 1 (address: 0A00H to 0A0FH).
■Error history data 1 (address: 0A00H to 0A0FH)
Address
b15
b14
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
0A0FH
Error code details 10
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/Date
*2
Hour/Minute
*2
Second
Error code details 1
Error code details 2
Error code details 3
Error code details 4
Error code details 10
*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 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.
■Remote buffer memory address
Name
Error history data
Error history data 2 to Error history data 15 (address: 0A10H to 0AEFH) are stored in the same format as that of Error history
data 1 (address: 0A00H to 0A0FH).
For the error code, refer to the following.
Page 124 Error Code List
■Storage order of the error history
The latest error is stored in Error history data 1 (address: 0A00H to 0A0FH).
Errors that occurred in the past are stored in Error history data 2 to Error history data 15 (address: 0A10H to 0AEFH) in
reverse chronological order.
b13
b12
b11
b10
b9
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 160 Error code details)
0 (fixed)
b8
b7
b6
b5
b4
Last two digits of the year
Day
Minute
00H (fixed)
Address
0A00H to 0AEFH
Appendix 3 Details of Remote Buffer Memory Addresses
b3
b2
b1
b0
*1
Storage example
0001H
2012H
0901H
1330H
5000H
0
APPENDICES
159
A
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