| Number of channels per module | 
8 | 
| Distribution of the channels into groups | 
1 group of 8 channels | 
| Terminals of the channels I0 to I7 | 
1.0 to 1.7 | 
| Terminals of the channels C8 to C16 | 
2.0 to 2.7 | 
| Reference potential for all inputs | 
terminals 1.9…4.9 (Minus pole of the process supply     voltage, signal name ZP) | 
| Electrical isolation | 
from the FBP system bus | 
| Indication of the input signals | 
one 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 | 
> 2 mA | 
|   | 
input voltage +30 V | 
< 8 mA | 
| Max. cable length | 
  | 
|   | 
shielded | 
1000 m | 
|   | 
unshielded | 
600 m |