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

Parameter	Value
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 24 V 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.