Problem solved.
After the updates of the RS Multis, where the ESS function was introduced, I had never set anything there.
The settings under ESS therefore remained empty.
After I selected a value there, the RS system appeared on the device list.
Problem solved.
After the updates of the RS Multis, where the ESS function was introduced, I had never set anything there.
The settings under ESS therefore remained empty.
After I selected a value there, the RS system appeared on the device list.