APPENDICES
Appendix 2 Details of Buffer Memory Areas
249
A
Latest address of error history (Un\G8000)
This area stores the buffer memory address which has the latest error code among the addresses of Error history No.
(Un\G8010 to Un\G8169).
Clear setting of error history (Un\G8002)
Set whether to clear an error history when Error clear request (YF) is turned on.
■Enabling the setting
The setting is enabled immediately after a value is set in the buffer memory area.
■Default value
The default value is Do not clear the history. (0).
Error history No. (Un\G8010 to Un\G8169)
This area stores up to 16 errors that have occurred in the module.
For details on the error history function, refer to the following.
Page 58 Error History Function
*1 Value for when an error occurred at 10:35:40 on Friday, April 24th, 2015
RUN LED status monitor (Un\G8170)
This area stores the current status of the RUN LED.
For details on the RUN LED, refer to the following.
Page 21 PART NAMES
Clear setting of error history Setting value
Do not clear the history. 0
Clear the history. 1
Item Description Storage example
*1
First two digits of the year/last two
digits of the year
Stored as a BCD code. 2015H
Month/day 0424H
Hour/minute 1035H
Second 40H
Day of the week For each day of the week, one of the following values is stored as a BCD code.
Sunday: 0H, Monday: 1H, Tuesday: 2H, Wednesday: 3H, Thursday: 4H, Friday: 5H,
Saturday: 6H
5H
RUN LED status Stored value Description
Off 0 The RUN LED turns off.
On 1 The RUN LED turns on.
Flashing 2 The RUN LED is flashing.
b15 b8 b7 b0
to
to
Error code
First two digits of the year
Last two digits of the year
Month
Day
Hour
Minute
Second
Day of the week
System area
to
Un\G8010
Un\G8014
Un\G8013
Un\G8012
Un\G8011
Un\G8015
Un\G8019
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