Chapter 1 DAQ System Overview
© National Instruments Corporation 1-11 E Series User Manual
– NI-DAQ\Examples\VBasic directory contains the examples not
associated with Measurement Studio
• NI-DAQmx examples for ANSI C are in the
NI-DAQ\Examples\
DAQmx ANSI C Dev directory
• Traditional NI-DAQ (Legacy) examples for ANSI C are in the
NI-DAQ\Examples\VisualC directory
For additional examples, refer to
zone.ni.com.
I/O Connector Signal Descriptions
Table 1-4 describes the signals found on the I/O connectors. For a summary
of the I/O signals by device family, refer to the specifications document for
your device. Refer to Appendix A,
Device-Specific Information, for the I/O
pinout for your device.
Table 1-4. I/O Connector Signal Descriptions
Signal Name Reference Direction Description
AI GND — — AI Ground—These pins are the reference point for
single-ended AI measurements in RSE mode and the bias
current return point for DIFF measurements. All three
ground references—AI GND, AO GND, and D GND—are
connected on the device.
AI <0..15> AI GND Input AI Channels 0 through 15—You can configure each
channel pair, AI < i, i+8> (i = 0..7), as either one differential
input or two single-ended inputs.
AI <16..63> AI GND Input AI Channels 16 through 63
(NI PCI-6031E/6033E/6071E only)—Each channel pair,
AI <i, i +8> (i = 16..23, 32..39, 48..55), can be configured
as either one differential input or two single-ended inputs.
AI SENSE — Input AI Sense—This pin is the reference node for AI <0..15> in
NRSE mode.
AI SENSE 2 — Input AI Sense 2—This pin is the reference node for
AI <16..63> in NRSE mode.
AO 0 AO GND Output Analog Channel 0 Output—This pin supplies the voltage
output of AO channel 0.
AO 1 AO GND Output Analog Channel 1 Output—This pin supplies the voltage
output of AO channel 1.
AO GND — — AO Ground—The AO voltages are referenced to these
pins. All three ground references—AI GND, AO GND,
and D GND—are connected on the device.
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