Festo CTEU-DN, Description, Functions And Maintenance

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2. Installation and interfaces
2-17
Festo P.BE-CTEU-DN-OP+MAINT-EN en 1206NH
2.3 Device replacement
To avoid connection and start-up errors, observe the follow-
ing instructions for replacing the bus node, the electrical con-
nection box CAPC... and the connected I-port device.
2.3.1 Replacing the bus node
The configuration and parameterisation of the bus node and
the I-port device are
not automatically restored when the bus
node is replaced, e.g. for a service event. Observe the follow-
ing instruction.
1. Check before replacement whether the PLC or the higher-
order system has saved the settings and the settings have
been downloaded.
2. If not, verify which settings are required before replace-
ment, and restore these settings after replacement.
3. Switch off the power supply to the bus node.
4. Dismounting / mounting the bus node Section 2.1.
5. Connect all devices prior to switching on the CTEU bus
node, otherwise there will be no process data ( see also
Section 3.1.2 regarding the requirements for start-up).
6. Switch the power supply to the bus node back on.
7. Download the settings or restore the required settings.