Battery Life-Prolonging Function - Mitsubishi Electric Q01UCPU User Manual

3.26

Battery Life-prolonging Function

This function extends the life of battery installed in the CPU module by restricting data to be held by the battery to clock
data only. This function initializes all data other than the clock data when the CPU module is powered off or is reset.
Data held by a battery
Error history
Latch device (L)
Device in the latch range
Standard RAM
File register assigned to
the standard RAM
(1) Setting
Set the function in the I/O Assignment tab of the PLC parameter dialog
1.
Configure the I/O assignment setting.
2.
Click the
3.
Enter 0001
value to a slot in another station, the value is ignored.)
(2) Battery life
For the life of battery installed in the CPU module when the battery life-prolonging function is used, refer to the
following.
QCPU User's Manual (Hardware Design, Maintenance and Inspection)
Note 3.17
Universal
The High-speed Universal model QCPU does not support this function.
Set "Use the same file name as the program."
Set "Use the following file".
button
.
to the switch 3 of the slot where the CPU module is mounted. (When entering the
H
Note 3.17
Description
The number of error history data is initialized to zero.
Cleared to zero.
Cleared to zero.
Formatted (cleared to zero).
A file is deleted.
A file is deleted (A file is recreated at power-on or reset.
(Data is cleared to zero.))
box.Note 3.17
CHAPTER 3 FUNCTIONS
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