The NI USB-6009 is a USB based data acquisition (DAQ) and control device with analog input and
output and digital input and output. The price is 2100 NOK. The NI USB-6008 is a similar, but
somewhat simpler (and cheaper) device.
The main features of NI USB-6009 are as follows (the USB-6008 features which differs, are also
given):
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Analog input (AI)
: 8 inputs with referenced single ended signal coupling or 4 inputs with
differential signal coupling. Software-configurable voltage ranges: ±20V, ±10V, ±5V, ±4V,
±2.5V, ±2V, ±1.25V, ±1V. Max sampling rate is 48kS/s (48000 samples per second). 14 bits AD
converter (USB-6008: 12 bits).
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Analog output (AO)
: 2 outputs. Voltage range is 0 - 5V (fixed). Output rate is 150Hz
(samples/second). 12 bits DA converter.
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Digital input (DI) and digital output (DO)
: 12 channels which can be used as either DI or DO
(configured individually). These 12 channels are organized in ports, with Port 0 having lines 0, ..,
7, and Port 1 having lines 0, .., 3. Input low is between -0.3V and +0.8V. Input high is between
2.0V and +5.8V. Output low is below 0.8V. Output high is above 2V (with open-drain and push-
pull as options). (USB-6008 has only open-drain output.)
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Counter:
32 bits. Counting on falling edge.
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On-board voltage sources
(available at individual terminals): 2.5V and 5.0V
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Power
: USB-6009 is powered via the USB cable.
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Configuring and testing
: USB-6009 can be configured and tested using MAX (Measurement
and Automation Explorer) 4.0, which is installed with NI-DAQ 8.0. The latter is available on the
CD shipped with the device, and can alternatively be downloaded for free from
http://ni.com
(the
NI-DAQ 8.0 file is approximately 0,5GB).
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Application software
: LabVIEW, C, or Visual Studio. Platforms: Windows, Mac, Linux. The
present document gives an example of how to use USB-6009 in LabVIEW.
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Documentation
: The following relevant documents can be found at
http://ni.com
:
¡
USB-6009 product home page
¡
USB-6009 Data Sheet
(which is available from the product home page)
¡
Getting Started Guide: NI-DAQmx for USB Devices
(which is available from the product
home page). This document explains how to test the device in Measurement and
Automation Explorer (MAX).
¡
USB-6008/6009 User Guide and Specifications
(which is available from the product home
page). This document shows in detail how USB-6008 must be connected to external signals
for measurement or control.
[
Table of contents
]
2 Labeling the I/O terminals
Before you start using the USB-6009, you should attach labels to the analog and digital terminals.
Figure 2 below shows the
analog
I/O terminals with labels assuming differential signal coupling. (In
general, differential signal coupling is preferrable to single ended coupling due to better DC noise
suppression).
Page 2 of 21
TechTeach: A quick guide to National Instruments USB-6009 and USB-6008 multifuncti ...
2/14/2009
http://techteach.no/tekdok/usb6009/
