Technical Data of the Digital \ OutputsΒΆ

Parameter Value
Number of channels per module 32 outputs (with transistors)
Distribution of the channels into groups 1 group of 32 channels
Connection of the channels  
  O0 to O7 Terminals 1.0 to 1.7
  O8 to O15 Terminals 2.0 to 2.7
  O16 to O23 Terminals 3.0 to 3.7
  O24 to O31 Terminals 4.0 to 4.7
Indication of the output signals 1 yellow LED per channel, the LED is ON if the output signal is high (signal 1)
Reference potential for all outputs Terminals 1.9, 2.9, 3.9 and 4.9 (negative pole of the process supply voltage, signal name ZP)
Common power supply voltage For all outputs: terminals 1.8, 2.8, 3.8 and 4.8 (positive pole of the process supply voltage, signal name UP)
Output voltage for signal 1 UP (-0.8 V)
Output delay (0 -> 1 or 1 -> 0) On request
Output data length 4 bytes
Output current  
  Rated value, per channel 500 mA at UP = 24 V
  Maximum value (channels O0 to O15) 4 A
  Maximum value (channels O16 to O31) 4 A
  Maximum value (all channels together) 8 A
Max. leakage current with signal 0 < 0.5 mA
Rated protection fuse on UP 10 A fast
Demagnetization when inductive loads are switched off With varistors integrated in the module (see figure below)
Switching frequency  
  With resistive load On request
  With inductive loads Max. 0.5 Hz
  With lamp loads Max. 11 Hz with max. 5 W
Short-circuit proof / overload proof Yes
Overload message (I > 0.7 A) Yes, after ca. 100 ms
Output current limitation Yes, automatic reactivation after short-circuit/overload
Resistance to feedback against 24 V signals Yes
Max. cable length  
  Shielded 1000 m
  Unshielded 600 m

The following drawing shows the circuitry of a digital output with the varistors for demagnetization when inductive loads are switched off.

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