22 Battery
22.3 Setting for Battery
346
FX3G Series Programmable Controllers
User's Manual - Hardware Edition
22.3 Setting for Battery
The battery is not incorporated in the main unit at shipment from the factory. It is necessary to attach the
optional battery if backup is required.
In addition, the battery mode is set via a parameter.
22.3.1 Attaching the battery
The FX3G-40MT/ES is used as the main unit in this example.
1 Turn the power OFF.
2 Remove the top cover (A in the right figure).
When the expansion board, connector conversion adaptor or
memory cassette is attached, remove it.
3 Attach the battery.
Insert the battery connector (B in the right figure) of the battery.
Push the battery into the battery holder (C in the right figure).
Set the battery cable as shown in D in the right figure.
4 Attach the top cover.
When the expansion board, connector conversion adaptor or
memory cassette was removed in the step 2, attach it again.
22.3.2 Setting the battery mode (GX Developer Ver. 8.72A or later)
The following setting using a parameter is required to use the battery.
Note that the battery does not back up the data if the following setting is not provided.
→ For the backup target data, refer to Section 22.1.
- On the "PLC system[1]" tab on the "FX parameter" window, check the check box "Use Battery".
(Refer to the window below.)
2
4
A
D
B
C
Put a check mark to the
check box "Use Battery."
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