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Idiomas disponibles
Isolated digital input channels
The U2600A Series USB isolated DIO modules are equipped with up to 64-bit of
opto-isolated digital input, which provides electrical isolation protection to the
inner DIO circuitry. The circuit diagram of an isolated input bit is shown in
Figure
are 24 V and –24 V, respectively; regardless of its polarity as shown below:
Figure 3-1
Figure 3-2
Keysight U2600A Series User's Guide
3-1. The maximum and minimum allowable input voltage at DI
1 24 V at DI
and –24 V at DI
in
2 24 V at DI
and –24 V at DI
COM
OUTSIDE DIO
DI
in
I
DI
COM
Isolated digital input bit through a photo coupler
Maximum allowable input votlage = +24 V
Minimum allowable input voltage = –24 V
The maximum and minimum allowable input voltage at DI
DI
COM
or
COM
.
in
INSIDE DIO
R
f
48 V
and the absolute voltage range for DIO to see a logic high
Features and Functions
Photo Coupler
absolute voltage difference:
10 V to 24 V = logic high
3
and DI
in
COM
and
in
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