Power supply
EtherCAT Box modules are supplied with two electrically isolated supply voltages:
Control voltage US
Power is supplied to the fieldbus, the processor logic, the inputs and the sensors from the control voltage US. The control voltage is electrically isolated from the fieldbus circuitry.
Peripheral voltage UP
The peripheral voltage UP supplies the digital outputs; it can be brought in separately. Hence, if the peripheral voltage is switched off, the fieldbus function as well as the supply and function of the inputs are retained.
Further Information