The WLAN module is necessary so that a wireless network connection can be established from a laptop or tablet computer to the PLC.

If a WLAN module is faulty, it must be replaced.

The WLAN module is connected to the PLC with an Ethernet network cable.

If further Ethernet network devices are used (e.g. radio data transmission module), all of these Ethernet devices are connected to an Ethernet switch as distributor.

The WLAN module is thus generally not connected to the PLC via CAN bus, but rather by Ethernet.

The WLAN module is delivered as a replacement part preconfigured.

Switch off the crane. See Switching off the crane.

Remove or disconnect connection cables from the faulty WLAN module.

Remove faulty WLAN module.

Install new WLAN module.

Plug in connection cables.

Switch the crane on.