Chapter 4 Analog Input
X Series User Manual 4-12 ni.com
Table 4-3. MIO X Series Analog Input Configuration
AI Ground-Reference
Setting
*
Floating Signal Sources
(Not Connected to Building
Ground)
Ground-Referenced
Signal Sources
†
Examples:
•Ungrounded thermocouples
• Signal conditioning with
isolated outputs
• Battery devices
Example:
•Plug-in instruments with
non-isolated outputs
Differential
Non-Referenced
Single-Ended (NRSE)
Referenced Single-Ended
(RSE)
*
Refer to the Analog Input Ground-Reference Settings section for descriptions of the RSE, NRSE, and DIFF modes and
software considerations.
†
Refer to the Connecting Ground-Referenced Signal Sources section for more information.
+
–
+
–
AI+
AI–
AI GND
Signal Source DAQ Device
+
–
+
–
AI+
AI–
AI GND
Signal Source DAQ Device
+
–
+
–
AI
AI SENSE
AI GND
Signal Source DAQ Device
+
–
+
–
AI
AI SENSE
AI GND
Signal Source DAQ Device
+
–
+
–
AI
AI GND
Signal Source DAQ Device
Ground-loop potential (V
A
– V
B
) are added
to measured signal.
NOT RECOMMENDED
+
–
+
–
AI
AI GND
V
B
V
A
Signal Source DAQ Device
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