It allows to expand the resources available on nP4 and AC3nP, providing additional inputs and outputs: Inputs: – 0/4/8 Universal analogue: Configurable 0/1 … 5 V, 0/2 … 10 V, 0/4 … 20 mA, TC (J, K, L, N, R, S, T), PT100 ( 2 wires), PT1000, NTC (103AT-2), Potentiometer, 5V Ratiometric – 8/16 digital 24 Vdc + 2 digital for fast counting Output: – 0/2/4 Analog outputs: configurable 0/1 … 5 V, 0/2 … 10 V, 0/4 … 20 mA – 8/16 digital 24 Vdc – 4 Relays/ SSR drive