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6.26 Battery Life-prolonging Function
(1) Definition
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
(2) Setting
Set the function in the I/O assignment tab of the PLC parameter dialog box.
1) Configure the I/O assignment setting.
2) Click the
Switch setting
3) Enter 0001
in another station, the value is ignored).
(3) 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 Userís Manual (Hardware Design, Maintenance and Inspection)
Table6.44 Initialization details
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 value to a slot
H
Enter 0000
H
Figure 6.107 Switch setting screen
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.).)
.
CHAPTER6 FUNCTIONS
Description
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