31
Isolated Digital Input
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 ECOM0. Channels 8~15 use ECOM1.) The
following figure shows how to connect an external input source to the
card's isolated inputs.
ECOM
EGND
Isolated
Circuit
Internal
Wet
contact
Dry
Contact
IDI0
IDI1
External
Figure 3-8: Isolated digital input connection