BECKHOFF EP1xxx - Manual (Page 50)

Mounting and cabling
Fig. 51: Digital inputs M8 and M12
The sensors are supplied from the control voltage Us with a maximum current of 0.5 A.
The state of the signals is indicated by light emitting diodes.
3.6.2 Digital inputs Sub­D25
Digital inputs Sub­D25
The EP1xxx digital input modules acquire the binary control signals from the process level and transmit them
to the higher­level automation unit.
The signal connection is made through a 25­pin sub­D socket.
The sensors are supplied from the control voltage Us. The load voltage Up is not used in the input module,
but may be connected in order to be relayed downstream.
Fig. 52: Digital inputs Sub­D25, 16 channels
EP1xxx 50 Version 2.1.0