Analog Input Triggering; Connecting Analog Input Signals - National Instruments DAQ X Series User Manual

Chapter 4 Analog Input

Analog Input Triggering

Analog input supports three different triggering actions:
•
•
•
Refer to the
AI Pause Trigger Signal
An analog or digital trigger can initiate these actions. All Simultaneous
MIO X Series devices support digital triggering, but some do not support
analog triggering. To find your device triggering options, refer to the
specifications document for your device.

Connecting Analog Input Signals

Table 4-6 summarizes the recommended input configuration for different
types of signal sources for Simultaneous MIO X Series devices.
Table 4-6. Simultaneous MIO X Series Analog Input Signal Configuration
Floating Signal Sources
(Not Connected to Earth Ground)
Examples:
• Ungrounded thermocouples
• Signal conditioning with isolated
outputs
Input • Battery devices
Differential
(DIFF)
+
V 1
–
Refer to the
of the input modes.
X Series User Manual
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Start trigger
Reference trigger
Pause trigger
AI Start Trigger Signal,
sections for information about these triggers.
AI 0 +
+
AI 0 –
–
R
R
AI GND
Analog Input Terminal Configuration
4-46
AI Reference Trigger Signal, and
Ground-Referenced Signal Sources
Example:
• Plug-in instruments with
non-isolated outputs
AI 0 +
+
V 1
AI 0 –
–
AI GND
section for descriptions
+
–
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