PCI2320 Data Acquisition V6.011
Pin definition
Signal Name
Type
Definition
DI0
～
DI7
Input
8 channel digital inputs
COM1
Input
The common port of the DI0~DI7
DI8
～
DI15
Input
8 channel digital inputs
COM2
Input
The common port of the DI8~DI15
DI16
～
DI23
Input
8 channel digital inputs
COM3
Input
The common port of the DI16~DI23
DI24
～
DI31
Input
8 channel digital inputs
COM4
Input
The common port of the DI24~DI31
DI32
～
DI39
Input
8 channel digital inputs
COM5
Input
The common port of the DI32~DI39
DI40
～
DI47
Input
8 channel digital inputs
COM6
Input
The common port of the DI40~DI47
DI48
～
DI55
Input
8 channel digital inputs
COM7
Input
The common port of the DI48~DI55
DI56
～
DI63
Input
8 channel digital inputs
COM8
Input
The common port of the DI56~DI63
NC
NC
3.2 Digital Input Connection
Isolated digital input is open-collector input, the input voltage is from 0 to 24V, input impedance is 2.4K
Ω
, the common
port of the input can be connected to the ground or power port. Take DI0 for example, isolated digital input connection
as shown below, other channels are the same as the DI0.
2.4K
DI0
COM1
(GND)
2.4K
DI0
COM1
(+VDD)
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