FLEXBOOL PB 4PT100 is a Power Bus Extender with 4 PT100 inputs. It communicates with the PLC by means of a 2-Wire bus (Power + Data) with a total length up to 500 meters. Up to 32 extenders can be connected in a daisy chain. Each of the PT100 sensors can be connected in 2 or 3-Wire connection. The extender is compatible with all FLEXBOOL PLC models that support Power Bus communication (PB models).