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Procedure
Proceed as follows to replace a communication module (Ethernet/PROFIBUS connection):
1. Ensure that the communications module is disconnected from the power supply.
If you work via a SIMATIC controller, make sure that this is disconnected from the power
supply.
2. Disconnect the cables from the communications module.
3. Remove the communications module.
4. Install the new communications module.
5. Set the PROFIBUS address on the communication module.
6. Connect the communication module to the PC or the SIMATIC controller using the
available Ethernet/PROFIBUS cable.
7. If necessary, connect the communications module to one or more readers.
8. Connect the communications module to the power supply using the connecting cable.
Wait until the communications module has started up and is ready for operation ("RUN"
LED is lit/flashing green).
9. If necessary, assign a unique IP address to the communication module.
10.Load the configuration onto the communications module.
11.Switch on user management if necessary and create new user profiles.
SIMATIC RF166C
Operating Instructions, 12/2019, C79000-G8976-C578-01
Service and maintenance
10.5 Module replacement
155
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