Parameterisation When Switching On (System Start) - Festo CPX-FB36 Electronics Description

3. Commissioning

3.2.1 Parameterisation when switching on (system start)

3-22
Parameterisation of the CPX terminal is initially dependent on
the setting of the "System start" parameter. This parameter
establishes whether the default parameters or the paramet-
ers saved by the user in the bus node are used when switch-
ing on the CPX terminal.
The parameterisation is loaded again after every interruption
of the power supply or the network connection. An exchange
of individual CPX modules is therefore possible, for example,
without the need for re-parameterisation.
Sequence of parameterisation when switching on
the CPX terminal
System start with default parameters
1. The controller transmits the parameterisation that is
saved in the controller to the bus node.
2. The bus node distributes this parameterisation to the
individual modules.
System start with saved parameters
1. The bus node distributes the parameterisation that is
saved in the bus node to the individual modules.
The parameterisation saved in the bus node can be overwrit-
ten accidentally by the controller.
Prevent this by changing the "Configuration" connection
•
parameter using the "RSLogix" programme.
Festo P.BE-CPX-FB36-EN en 1309NH English