Electrical Installation      57- 
The industrial process interface provides the following inputs and outputs: 
Digital input 
(active-low = 0…0,6 V) 
Analog output 1, 2 and 3 
Alarm output 1, 2 and 3 
Relay output 1, 2 and 3 
3)
 
open/ closed (red LED on) / 0...30 V, 400 mA 
open/ closed (green LED on)/ 0...30 V, 400 mA 
1)
 depending on supply voltage; for 0-20 mA on the AO the PIF has to be powered with min. 5V < (1.5 + working resistance * 0.021) < 
24 V; Example: R
Load
 = 500 ohm → U
min
 = 1.5 + 500 * 0.021 = 12 V, R
Load
 = 100 ohm → U
min
 = 1.5 + 100 * 0.021 = 3.6 V → min. 5 V 
2)
 the AI is designed for max. 24 V, the voltage level above 10 V is not interpreted 
3)
 active if AO1, 2 or 3 is/ are programmed as alarm output 
 
The alarm output can be configured as a threshold between 0-4 mA for no alarm and between 
10-20 mA as alarm. For values outside the respective range, the relay does not switch on the 
DO.