Technical Data of the Digital Inputs

Number of channels per module 8 inputs (24 V DC)
Distribution of the channels into groups 1 (8 channels per group)
Connections of the channels I0 to I7 Terminals 2 to 9
Reference potential for the channels I0 to I7 Terminal 1 (plus or minus pole of the process supply voltage, signal name C0..7)
Indication of the input signals 1 yellow LED per channel; the LED is ON when the input signal is high (signal 1). The module is powered through the I/O-Bus.
Input type according to EN 61131-2 Type 1 source Type 1 sink
Input signal range -24 V DC +24 V DC
  Signal 0 -5 V … +3 V -3 V … +5 V
  Undefined signal -15 V … -5 V +5 V … +15 V
  Signal 1 -30 V … -15 V +15 V … +30 V
Ripple with signal 0 -5 V … +3 V -3 V … +5 V
Ripple with signal 1 -30 V … -15 V +15 V … +30 V
Input current per channel  
  Input voltage +24 V Typ. 5 mA
  Input voltage +5 V Typ. 1 mA
  Input voltage +15 V > 2.5 mA
  Input voltage +30 V < 8 mA
Max. permissible leakage current (at 2-wire proximity switches) 1 mA
Input delay (0->1 or 1->0) Typ. 8 ms
Max. cable length  
  Shielded  
  Unshielded 300 m