1 x non-isolated RS-485 interface (max. 50 m) 1 x isolated RS-485 interface (max. 1000 m) 2 x non-isolated RS-485 interface (max. 50 m) 2 x isolated RS-485 interface (max. 1000 m) 1 x isolated RS-485 interface (max. 1000 m) + 1 x non-isolated RS-232 interface (max. 15 m) 2 x non-isolated RS-232 interface (max. 15 m)

+1

2 analog inputs (0 – 10 V) + 1 analog output (0 – 10 V) 2 analog inputs + 2 analog outputs 2 analog outputs 4 analog inputs

2 inputs (24 V DC) + 2 outputs (relay) 2 inputs (24 V DC) + 2 outputs (transistor NPN) 4 inputs (24 V DC) 4 outputs (relay) 4 outputs (transistor NPN)

4 inputs (24 V DC) + 4 outputs (relays) 4 inputs (24 V DC) + 4 outputs (transistor NPN) 8 inputs (24 V DC) 8 outputs (transistor NPN)

8 inputs (24 V DC) 8 outputs (transistor NPN)

1 Pt100 input 2 Pt100 inputs