Scanned Analog Input
The sbRIO-9683 or sbRIO-9684 GPIC controller has eight scanned analog inputs with an
input range of 0 V to 5 V. These inputs have limited bandwidth, and each input is read at a
slightly different time as it is scanned. These inputs should be used for slow analog signals as
temperature or DC voltages.
The sbRIO-9687 interface board connects slow analog inputs from inverter and breakout
connectors to the GPIC scanned AI. The signals are conditioned. The input range on the
sbRIO-9687 is 0 V to 10 V or -5 V to 5 V.
Figure 11. Scanned AI Block Diagram
Differential/
Single-Ended
Amplifier
Breakout
Connector
Temperature
External AI
UDC Input
scAI
GPIC
Configurable position
CM
Filter
CM
Filter
CM
Filter
Inverter
Connectors
Scanned Analog Input Connectors
The sbRIO-9687 interface board has seven external scanned analog inputs that are available at
breakout connector J14. The following table provides pinout information for the breakout
connector.
Table 19. J14 Pin Assignments
Pin
Signal
Pin
Signal
1
GND
14
GND
2
AO0
15
AO1
3
AO2
16
AO3
4
GND
17
GND
5
AO4
18
AO5
6
AO6
19
AO7
7
scAI0
20
scAI0 GND
24
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sbRIO-9687 User Manual