E Series Multifunction DAQ Overview
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E Series DAQ Overview
Measurements
Self-Calibration Using an Internal Reference
The E Series analog inputs and outputs have calibration circuitry to
correct gain and offset errors. You can calibrate the device in
software to avoid analog I/O errors caused by time and temperature
drift at run time. No external circuitry is necessary; an internal
reference ensures high accuracy and stability over time and
temperature. Factory-calibration constants are permanently stored
in an onboard EEPROM and cannot be modified. A modifiable
section of the EEPROM stores user-modifiable constants. You can
return the devices to their initial factory calibration by accessing the
unmodified factory constants. Included with all E Series devices is
an NIST-traceable and ISO-9002 certified calibration certificate. Visit
ni.com/calibration for more information.
I/O Interface – MITE and DAQ-PnP
All of the PCI and PXI E Series use the MITE ASIC as a bus master
interface to the PCI bus. The E Series products for ISA use an ASIC
that fully implements the Plug and Play ISA Specification, so that the
DMA level, interrupt channels, and base I/O address are all software
configurable. All other E Series devices are inherently Plug and Play
compatible. Visit ni.com/info and enter exniev to download
a technical paper on bus mastering.
RTSI Bus Interface
All E Series devices except DAQCards, USB DAQPads, and PXI
modules are interfaced to the National Instruments RTSI bus with
an embedded cross-matrix switch in the DAQ-STC. This switch
synchronizes several DAQ devices by sending timing signals to
them on the RTSI bus. Using RTSI bus, a single master device can
control one or more slave devices for both single and multiple A/D
conversions. The PXI Trigger bus serves the same purpose for PXI
systems as RTSI bus.
E Series Multifunction DAQ Software
NI-DAQ
NI-DAQ, our driver software bundled with every E Series multifunction
DAQ device, provides access to the features of your DAQ hardware,
so that you can easily develop powerful measurement solutions.
You can use NI-DAQ to perform single-point and buffered
analog I/O, digital I/O, and counter/timer input operations. You can
perform those operations individually, or program your device to
perform multiple operations simultaneously. To facilitate integration
of signal conditioning in your system, NI-DAQ provides you with a
single interface for programming both the E Series device and signal
conditioning modules. Using NI-DAQ, you can also synchronize your
E Series multifunction DAQ device with other measurement devices,
to build measurement systems customized to your particular needs.
Measurement & Automation Explorer
NI Measurement & Automation Explorer (MAX) software, which is
bundled with every E Series multifunction DAQ device, guides you
through hardware configuration, channel scaling, and sensor set-up.
You can also test the basic operation of your E Series device and
signal connections using a test panel.
What About Signal Conditioning?
Signal conditioning is one of the most
important, and most overlooked,
components of a data acquisition system.
Many sensors require special signal
conditioning technology, and no DAQ
device has the capability to provide all
types of signal conditioning to all
sensors. Using NI signal conditioning
products, you can measure a wide variety
of signals and sensors. These modular
conditioning devices come in a range of
sizes, from rack-mountable SCXI systems
to portable SCC systems.
See page 383 for more information
on Signal Conditioning,
Figure 3. 68-Pin I/O Connector for NI 6070E,
NI 6060E, NI 6062E, NI 6052E, NI 6041E,
NI 6040E, NI 6036E, NI 6035E, NI 6034E,
NI 6032E, NI 6030E, NI 6024E, NI 6023E,
NI 6020E, NI 6012E and NI 6011E Devices
Figure 4. 100-Pin I/O Connector for
NI 6021E and NI 6025E Devices
Figure 2. 100-Pin I/O Connector for NI 6071E,
NI 6061E, NI 6031E, NI 6033E Devices
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