When A Battery Error Occurs - Mitsubishi Electric Q12DCCPU-V User Manual

6
PREPARATORY PROCEDURES AND SETTING
6
- 50 6.7 Specifications, Installation, and Replacement of the Battery
6.7.3 Battery replacement
(b) When a battery error occurs
1) The ERR. LED turns on indicating a battery error (error code: 1600, BATTERY
ERROR).
The error code can be checked in the <<Module information>> tab of C
Controller setting utility.
2) The date and time of the error, event No. (0xC000020E), and battery error
(error code: 1600, BATTERY ERROR) are added to the event history.
The event history can be checked in the <<Event history>> tab of C Controller
setting utility.
3) By calling the QBF_ReadStatusEx function from the user program, LED
information and battery error occurrence can be checked.
* 1 Occurrence of a battery error does not change the CPU operating status.(If it was in the RUN
status, it remains in the RUN status.)
File data in the standard RAM, standard ROM, and battery-backed-up RAM will not be lost
immediately even if an error occurred.
Note that, however, file data in the standard RAM, standard ROM, and battery-backed-up RAM
may be lost if the battery is not replaced within the guaranteed period of time indicated in (2) in this
section.
(c) Battery replacement
Replace the battery within the guaranteed period of time after battery error
occurrence. ( (2) in this section)
To create a battery error detection program, use the QBF_Y_Out_BitEx function
to turn on any given output (Y) when a battery error is detected by the
QBF_ReadStatusEx function.
*1