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connector and to Table 9 for the corresponding signals for each pin. Refer to Figures 24 through 29 for
information on how to wire the digital inputs and outputs on the UMI-7774/72.
Pin
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
You can wire a Digital Input to a sourcing output device, such as a PNP sensor, as shown in Figure 24,
or to a high-side switch as shown in Figure 28. You can use the isolated power (V
common (C
) signals on the control connector to power on the sensor.
iso
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Table 9. Digital I/O Connector Pin Assignment
Signal
Digital Input 0
Digital Input 2
Digital Input 4
Digital Input 6
V
(Output)
iso
V
(Output)
iso
NC
Digital Output 0
Digital Output 2
Digital Output 4
Digital Output 6
V
(Output)
iso
V
(Output)
iso
Digital Input 1
Digital Input 3
Digital Input 5
Digital Input 7
C
iso
C
iso
C
iso
Digital Output 1
Digital Output 3
Digital Output 5
Digital Output 7
C
iso
31
Optically Isolated
Yes
Yes
Yes
Yes
Yes
Yes
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
) and isolated
iso
NI UMI-7774/72 User Guide and Specifications
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