EF200F-C
Safety instructions
11
2.7.1
Protecting access via hardware write protection
Write access to the device parameters via the local display or operating tool
can be disabled via a write protection switch (DIP switch on the motherboard).
When hardware write protection is enabled, only read access to the parameters is possible.
2.7.2
Protecting access via a password
A password can be used to protect against write access to the device parameters.
This password locks write access to the device parameters via the local display or another
operating tool and, in terms of functionality, is equivalent to
hardware write protection.
User-specific access code
Write access to the device parameters via the local display or operating tool
can be protected by the modifiable, user-specific access code (→ See 10.8.1).
When the device is delivered, the device does not have an access code and is equivalent
to 0000 (open).
General notes on the use of passwords
• The access code and network key supplied with the device should be changed during
commissioning.
• Follow the general rules for generating a secure password when defining and managing
the access code or network key.
• The user is responsible for the management and careful handling of the access code and
network key.
• For information on configuring the access code or on what to do if you lose the
password, see the "Write protection via access code" section → See 10.8.1
2.7.3
Access via fieldbus
Cyclic fieldbus communication (read and write, e.g. measured value transmission) with a
higher-order system is not affected by the restrictions mentioned above.
