Omron CP1H-CPU - 05-2006 Operation Manual page 389

Battery-free Operation
Saving DM Initial
Values (Only when
Required)
1,2,3...
Note
PLC Setup
1,2,3...
358
• When battery-free operation is used, the Output OFF Flag (A500.15) in
the Auxiliary Area becomes unstable. When the Output OFF Flag turns
ON, all outputs turn OFF, so include the following program for clearing the
Output OFF Flag at the start of operation.
First Cycle Flag
A200.11
• Do not reference the clock function, (the clock data in words A351 to A354
of the Auxiliary Area, or the various kinds of time data).
Use the following procedure to save to the built-in flash memory the DM initial
values that are to be set at startup.
1. First set in the DM Area the data that is to be set as initial values at startup.
2. Execute a backup to flash memory from the CX-Programmer's Memory
Cassette Transfer/Data Memory Backup Dialog Box.
The procedure is as follows:
a. Select PLC - PLC data - Memory Cassette/DM.
The following Memory Cassette Transfer/DM Backup Dialog Box will
be displayed.
b. Select the Data Memory Option in the Backup to Flash Memory Area
and click the Backup Button.
The DM data will be written to the built-in flash memory.
The DM data that is saved and written at startup is the entire DM Area (D0 to
D32767).
1. Set Do not detect Low Battery (run without battery) to Do not detect.
Section 6-4
RSET
A500.15