Panasonic FP0 User Manual page 246

Checking and changing the set value of system register
If you are going to use a value which is already set(the value which appears when read),
there is no need write it again.
Using programming tool software
Produce:
1. Set the control unit in the PROG mode.
2.Option ->PLC Configuration
3.When the function for which setting are to be entered is selected in the PLC Configuration
dialog box,the value and setting status for the selected system register are displayed.
To change the value and setting status,write in the new value and /or select the setting status.
4.To register these settings,choose OK
Precautions for system register setting
-System register settings are effective from the time they are set.
However, input settings,tool port,COM port,and modem connection settings become effective when the
mode is changed from PROG. to RUN. With regard to the modem connection setting, when the power
is turned off and on or when the mode is changed from PROG. to RUN, the controller sends a
command to the modem which enables it for reception.
-When the initialized operation is performed, all set system register values (parameters) will be initialized.
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