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used onboard can be disconnected from the sbRIO-9687 circuitry by depopulating the 0 Ω
resistors.
The following figure shows a block diagram for the sourcing digital input circuitry.
The sourcing DI lines have the same specifications as the sourcing DI lines of the GPIC. Port 1
should be powered at the VI_P1 pin for proper operation. The digital input operates in the low
range or high range based on the VI_P1 voltage.
Note
If no device is connected to the sourcing digital input, the channel registers as
OFF. If the input is connected to ground, the channel registers as ON.
Sourcing Digital Input Connector
Sourcing digital inputs are available at breakout connector J12. Refer to the following table for
pinout information.
Table 26. J12 Sourcing Digital Input Connector Pinout
Pin
1
2
3
4
5
6
7
8
9
10
Figure 15. Sourcing Digital Input Block Diagram
DI Port 0
GPIC
DI Port 1
Configurable position
Signal
GND
DI_P0.0
DI_P0.2
DI_P0.4
DI_P0.6
DI_P0.8
DI_P0.10
DI_P0.12
+24 V
GND
Onboard
Functionality
Breakout
Connector
Pin
19
20
21
22
23
24
25
26
27
28
sbRIO-9687 User Manual | © National Instruments | 31
Signal
GND
DI_P0.1
DI_P0.3
DI_P0.5
DI_P0.7
DI_P0.9
DI_P0.11
DI_P0.13
+24 V
GND
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