V01.10 | 2020/11
11
Supply sensors and actuators externally
sensors and actuators which are supplied externally can also be connected to the TBIL I/O hubs.
When sensors and actuators are supplied externally, the following safety regulations have to be
observed:
Supply sensors and actuators from SELV or PELV power supplies.
Decouple external circuits that are not designed as SELV or PELV systems by opto-
couplers, relays or other measures.