16-13
16 Other Functions
CP1E CPU Unit Software User’s Manual(W480)
16-4 Security Functions
16
16-4-1 Ladder Program Read Protection
Protection Release Procedure
Auxiliary Area Bits Related to Password Protection
1
Go online and select Protection -
Release Password from the PLC
menu.
The Release Read Protection Dia-
log Box will be displayed.
2
Enter the registered password.
If the password is incorrect, the
message shown on the right will be
displayed, and protection will not be
released.
Name
Bit
address
Description
Status after
mode
change
Startup
hold
settings
UM Read Protection
Status
A99.00 Indicates whether or not the whole ladder pro-
grams are read-protected.
OFF: UM read protection is not set.
ON: UM read protection is set.
Hold Hold
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