User manual

PCI-1736UP User Manual 26
3.3.1 Isolated Digital Inputs
Each of the 16 isolated digital input channels accept voltages from 5 to 30
V. Every eight input channels share one external ground.
(Channels 0~7 use EI.WCOM1 (Wet Contact) and EI.DCOM1 (Dry Con-
tact). Channels 8~15 use EI.WCOM2 (Wet Contact) and EI.DCOM2
(Dry Contact).) The following figure shows how to connect an external
input source to the card's isolated inputs.
Figure 3.3: Isolated Digital Input Connection
Figure 3.4: Bi-directional Isolated Digital Input Connection