Beckhoff EP31 Series

Mounting and cabling
EP31xx46 Version: 2.4
3.8 EP3174-00x2 - Signal connection and Status LEDs
3.8.1 M12 analog voltage inputs, one differential input per socket
Analog inputs, -10 V to +10 V differential
Fig.27: M12 analog voltage inputs, one differential input per socket
GND connections
If several sensors are connected to a box whose GND connections are not electrically isolated,
GND must be connected to GNDp.
3.8.2 M12 analog current inputs, one differential input per socket
Analog inputs, 0 mA to 20 mA or 4 mA to 20 mA differential
Fig.28: M12 analog current inputs, one differential input per socket
GND connections
If several sensors are connected to a box whose GND connections are not electrically isolated,
GND must be connected to GNDp.