Access Protection - Festo CPX Series Manual

5. Parameter
5.2

Access protection

5.2.1 Password protection
Festo P.BE−CPX−CMA X−CONTROL−EN en 0908NH
The password protection prevents unauthorised controlling
or modifying of parameters, e.g. via a freely accessible MMI
in a producing plant. The password only prevents write ac
cess reading is always possible.
There are three ways to modify parameters:
via the diagnostic interface with a PC or MMI (in prep
aration),
via fieldbus through the operating PLC (I/O data in
parametrising mode),
via fieldbus through a configuration master.
You can assign a password for the diagnostic interface in the
CMAX. Modifications are always possible via fieldbus. When
starting up the device for the first time, it will not yet have a
password created.
Areas that are protected are the modification of parameters
and the controlling of inputs, start, stop, teaching and firm
ware download. Permissible is the display of parameters,
project upload, the display of actual values, setpoint values,
diagnostic data.
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