Isolated Dio Architecture; Isolated D/I Architecture - ICP DAS USA PISO-1730U User Manual

PISO-1730U Card
32-ch Optically Isolated DIO Board (Sink, NPN)

2.4 Isolated DIO Architecture

The digital output and digital input (DIO) function supports external power mode. The DIO
various configurations and wiring note is illustrated in the figure below.

2.4.1 Isolated D/I Architecture

Isolated D/I Architecture with external power supply.

PC's
In
Power
Vcc
R=10k
D in
PISO-1730U
Typical Application of D/I with external power supply.

DC / DC
PC's
In
Power
Vc
c
R=10k
D in
PISO-1730U
DC / DC
(-) GND Internal
Out
(+) Internal
(-) GND Internal
Out
(+) Internal
User Manual/ Ver. 1.2/ Jan. 2015/ PMH-0025-11/ Page: 9
R=3K
R=3K
External source signal
(-) External GND
(+) External Power
D Input (External)
External Power Supply
(-) GND
(+) External Power
(+)
(-) GND