Discrete: I/O Number 16 Group Of Channels: 2 groups of 8 inputs Discrete Input Number: 16 conforming to EN/IEC 61131 type 2 Input Compatibility: With 2-wire/3-wire proximity sensors Discrete Input Voltage: 24 V DC Discrete Input Logic: Positive Discrete Input Current: 7 mA Sensor Power Supply: 19.2…30 V Degree Of Protection: IP67 Ambient Air Temperature: 0…60 °C