Technical data of the digital inputs/outputs if \ used as outputs

Number of channels per module Max. 8 transistor outputs
Common power supply voltage For all outputs: terminal 1.8 (plus 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) Typ. 10 µs
Output current  
Rated value, per channel 500 mA at UP = 24 V
Maximum value (all channels together) 8 A
Leakage current with signal 0 < 0.5 mA
Rated protection fuse for UP 10 A fast
De-magnitization 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 24V signals Yes
Max. cable length  
Shielded 1000 m
Unshielded 600 m

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

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Digital input/output (circuit diagram)