Siemens SIMATIC RF185C Operating Instructions Manual page 178

Service and maintenance
12.5 Module replacement
Procedure
Proceed as follows to replace a communications module (Ethernet/PROFINET 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. Connect the communications module to the PC or the SIMATIC controller using the
available Ethernet cable.
6. If necessary, connect the communications module to one or more readers.
7. 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).
8. If necessary, assign a unique IP address and a unique device name to the
communications module.
9. Load the configuration onto the communications module.
10.Switch on user management if necessary and create new user profiles.
Module replacement with automatic device name assignment
When you replace a module, you have the option of assigning the device names
automatically based on the configured PROFINET topology. This function is only possible
when replacing a device.
Requirement
● The PROFINET topology has been configured.
● The "Device replacement without exchangeable medium" option is enabled in the
PROFINET settings on the CPU.
● The new communications module is in the factory state, i.e. no device name and no IP
address have been assigned.
If the communications module is not in the factory state, the factory settings of the
module must be restored.
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SIMATIC RF185C, RF186C, RF188C, RF186CI, RF188CI
Operating Instructions, 04/2020, C79000-G8976-C512-03