Siemens SIMATIC PG 720 PII Manual page 90

Programming device
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Configuring the PG 720
Fixed disk boot
sector
Diskette
access
6-20
Normal
All types of hard-disk access are permitted.
protected
No operating system can be installed.
This is a way of protecting against
boot viruses.
This mode of protection is not active unless "Password on
boot " is set to [enabled].
Supervisor
Diskette access is not possible unless the
supervisor password was entered during
system boot.
User
Diskette access is not possible unless the
user password was entered during system
boot.
PG 720 PII Programming Device
C79000-G7076-C756-02

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