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

Number of channels	2 + 8 configurable digital inputs/outputs
Reference potential for all inputs	Terminals 1.9…4.9 (minus pole of the process supply voltage, signal name ZP)
Electrical isolation	From the rest of the module
Indication of the input signals	1 yellow LED per channel, the LED is ON when the input signal is high (signal 1)
Input type acc. to EN 61131-2	Type 1
Input delay (0->1 or 1->0)	Typ. 8 ms, configurable from 0.1 to 32 ms
Input signal voltage	24 V DC
Signal 0	-3 V…+5 V *
Undefined signal	> +5 V…< +15 V
Signal 1	+15 V…+30 V
Ripple with signal 0	Within -3 V…+5 V *
Ripple with signal 1	Within +15 V…+30 V
Input current per channel
Input voltage +24 V	Typ. 5 mA
Input voltage +5 V	> 1 mA
Input voltage +15 V	> 5 mA
Input voltage +30 V	< 8 mA
Max. cable length
Shielded	1000 m
Unshielded	600 m

*  Due to the direct connection to the output, the demagnetizing varistor is also effective at the input (see figure) above. This is why the difference between UPx and the input signal may not exceed the clamp voltage of the varistor. The varistor limits the voltage to approx. 36 V. Following this, the input voltage must range from - 12 V to + 30 V when UPx = 24 V and from - 6 V to + 30 V when UPx = 30 V.