National Instruments NI USB-6008 User Manual
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National Instruments NI USB-6008 User Manual

Data acquisition (daq) devices
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USER GUIDE AND SPECIFICATIONS
NI USB-6008/6009
Introduction
This manual revision updates naming conventions to reflect the conventions used in
Note
NI-DAQmx. Table 1 notes the correlation between the old and updated names.
This user guide describes how to use the National Instruments
USB-6008/6009 data acquisition (DAQ) devices and lists specifications.
The NI USB-6008/6009 provides connection to eight analog input (AI)
channels, two analog output (AO) channels, 12 digital input/output (DIO)
channels, and a 32-bit counter with a Full-Speed USB interface.
Table 1. Digital Output Driver Type Naming Conventions
Hardware Functionality
Open-drain
Push-pull
NI-DAQmx Terminology
Open collector
Active drive

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Summary of Contents for National Instruments NI USB-6008

  • Page 1 This user guide describes how to use the National Instruments USB-6008/6009 data acquisition (DAQ) devices and lists specifications. Introduction The NI USB-6008/6009 provides connection to eight analog input (AI) channels, two analog output (AO) channels, 12 digital input/output (DIO) channels, and a 32-bit counter with a Full-Speed USB interface.
  • Page 2 Table 2. Differences Between the NI USB-6008 and NI USB-6009 Feature AI Resolution Maximum AI Sample Rate, Single Channel Maximum AI Sample Rate, Multiple Channels (Aggregate) DIO Configuration System dependent. 1 USB Cable Strain Relief NI USB-6008/6009 User Guide and Specifications...

  • Page 3: Safety Guidelines

    The following section contains important safety information that you must follow when installing and using the NI USB-6008/6009. Do not operate the NI USB-6008/6009 in a manner not specified in this document. Misuse of the device can result in a hazard. You can compromise the safety protection built into the device if the device is damaged in any way.
  • Page 4 MAINS is defined as a hazardous live electrical supply system that powers equipment. Suitably rated measuring circuits may be connected to the MAINS for measuring purposes. NI USB-6008/6009 User Guide and Specifications Pollution Degree 1 means no pollution or only dry, nonconductive pollution occurs.

  • Page 5: Related Documentation

    Measurement Category IV is for measurements performed at the primary electrical supply installation (<1,000 V). Examples include electricity meters and measurements on primary overcurrent protection devices and on ripple control units. ni.com/ NI USB-6008/6009 User Guide and Specifications...

  • Page 6: Measurement Studio

    Visual C++, Visual C#, or Visual Basic .NET, you can interactively create channels and tasks by launching the DAQ Assistant from MAX or from within Visual Studio .NET. You can generate the configuration code NI USB-6008/6009 User Guide and Specifications directory and opening Getting Started»Getting Started with DAQ—Includes overview information and a tutorial to learn how to take an NI-DAQmx measurement in LabVIEW using the DAQ Assistant.

  • Page 7: Ansi C Without Ni Application Software

    Select Start»All Programs»National Instruments»NI-DAQ»NI-DAQmx Help. The NI-DAQmx C Reference Help describes the NI-DAQmx Library functions, which you can use with National Instruments data acquisition devices to develop instrumentation, acquisition, and control applications. Select Start»All Programs»National Instruments»NI-DAQ» NI-DAQmx C Reference Help.

  • Page 8: Device Documentation And Specifications

    In LabVIEW, select Help»NI-DAQmx Base VI Reference Help. The NI-DAQmx Base C Reference Help contains C reference and general information about measurement concepts. In Windows, select Start»All Programs»National Instruments»NI-DAQmx Base»Documentation» C Function Reference Help. NI USB-6008/6009 User Guide and Specifications ni.com/manuals. ni.com...

  • Page 9: Installing The Software

    NI-DAQ, for more information. The NI-DAQmx Base software ships with example programs you can use to get started programming with the NI USB-6008/6009. Refer to the NI-DAQmx Base Getting Started Guide that shipped with your device, and is also accessible from Start»All Programs»National Instruments»...
  • Page 10 Before installing the device, you must install the software you plan to use with the device. Refer to the and the documentation included with the software for more information. Figure 4 shows key functional components of the NI USB-6008/6009. Vbus NI USB-6008/6009 User Guide and Specifications...
  • Page 11 Install combicon screw terminal blocks by inserting them into the combicon jacks. Figure 5 illustrates the signal labels that ship in the NI USB-6008/6009 kit. You can apply the signal labels to the screw terminal blocks for easy signal identification.
  • Page 12 2 Combicon Jack Once you label the screw terminal blocks, you must only insert them into the Note matching combicon jack, as indicated by the overlay label on the NI USB-6008/6009 device. NI USB-6008/6009 User Guide and Specifications Figure 6. Signal Label Application Diagram Connect the wiring to the appropriate screw terminals.

  • Page 13: Led Indicator

    Connecting the NI USB-6008/6009 to a Computer Plug one end of the USB cable into the NI USB-6008/6009 and the other end into an available USB port on the computer. LED Indicator The NI USB-6008/6009 device has a green LED next to the USB connector.
  • Page 14 I/O Connector The NI USB-6008/6009 ships with one detachable screw terminal block for analog signals and one detachable screw terminal block for digital signals. These terminal blocks provide 16 connections that use 16 AWG to 28 AWG wire. Table 4 lists the analog terminal assignments, and Table 5 lists the digital terminal assignments.
  • Page 15 © National Instruments Corporation Table 5. Digital Terminal Assignments Module Terminal NI USB-6008/6009 User Guide and Specifications Signal P0.0 P0.1 P0.2 P0.3 P0.4 P0.5 P0 6 P0.7 P1.0 P1.1 P1.2 P1.3 PFI 0 +2.5 V +5 V...

  • Page 16: Signal Descriptions

    AO 0 AO 1 P1.<0..3> P0.<0..7> +2.5 V +5 V PFI 0 NI USB-6008/6009 User Guide and Specifications Table 6. Signal Descriptions Direction — Ground—The reference point for the single-ended AI measurements, bias current return point for differential mode measurements, AO voltages, digital signals at the I/O connector, +5 VDC supply, and the +2.5 VDC reference.

  • Page 17: Analog Input Circuitry

    Analog Input You can connect analog input signals to the NI USB-6008/6009 through the I/O connector. Refer to Table 6 for more information about connecting analog input signals. Analog Input Circuitry Figure 7 illustrates the analog input circuitry of the NI USB-6008/6009.

  • Page 18: Analog Input Modes

    (FIFO) buffer holds data during AI acquisitions to ensure that no data is lost. Analog Input Modes You can configure the AI channels on the NI USB-6008/6009 to take single-ended or differential measurements. Refer to Table 6 for more information about I/O connections for single-ended or differential measurements.
  • Page 19 Connecting Reference Single-Ended Voltage Signals To connect reference single-ended voltage signals (RSE) to the NI USB-6008/6009, connect the positive voltage signal to the desired AI terminal, and the ground signal to a GND terminal, as illustrated in Figure 11.

  • Page 20: Digital Trigger

    The NI USB-6008/6009 has two independent AO channels that can generate outputs from 0–5 V. All updates of AO lines are software-timed. Analog Output Circuitry Figure 12 illustrates the analog output circuitry for the NI USB-6008/6009. NI USB-6008/6009 User Guide and Specifications Voltage Source Figure 11.

  • Page 21: Minimizing Glitches On The Output Signal

    Digital-to-analog converts (DACs) convert digital codes to analog voltages. Connecting Analog Output Loads To connect loads to the NI USB-6008/6009, connect the positive lead of the load to the AO terminal, and connect the ground of the load to a GND terminal.

  • Page 22: Digital I/O Circuitry

    Instruments is not liable for any damage resulting from such signal connections. Source/Sink Information The default configuration of the NI USB-6008/6009 DIO ports is open collector, allowing 5 V operation, with an onboard 4.7 kΩ pull-up resistor. An external user-provided pull-up resistor can be added to increase the source current drive up to a 8.5 mA limit per line as shown in Figure 15.
  • Page 23 Select a static resistor value for your pull-up resistor that is greater than or equal to the ideal resistance. Re-connect the load circuit and the pull-up resistor. Port Pad NI USB-6008/6009 User Guide and Specifications...

  • Page 24: Power-On States

    Each line has a weak pull-up resistor connected to it. Static DIO Each of the NI USB-6008/6009 DIO lines can be used as a static DI or DO line. You can use static DIO lines to monitor or control digital signals. All samples of static DI lines and updates of DO lines are software-timed.

  • Page 25: External References

    ADC using a multi-state regulator, amplifier, and filter circuit. The resulting +2.5 V reference voltage can be used as a signal for self test. +5 V Power Source The NI USB-6008/6009 supplies a 5 V, 200 mA output. This source can be used to power external components. Note While the device is in USB suspend, the output is disabled.
  • Page 26 ±20 V means that |AI+ – (AI–)| <= 20 V. However, AI+ and AI– must both be within ±10 V of GND. Refer to the Differential Voltage Signals for more information. System noise measured at maximum sample rate. Input voltages may not exceed the working voltage range. NI USB-6008/6009 User Guide and Specifications Single-ended ...±10 V Differential ...±20 V Single-ended ±10 V range...5 mVrms Differential ±20 V range ...5 mVrms...
  • Page 27 © National Instruments Corporation Typical at 25 °C (mV) 2.21 1.70 1.53 P0.<0..7>... 8 lines P1.<0..3>... 4 lines NI USB-6008 ... Open collector (open-drain) NI USB-6009 ... Each channel individually Maximum over Temperature (mV) 42.5 38.9 37.5 36.4 mV maximum at full scale...

  • Page 28: External Voltage

    Resolution ...32 bits Counter measurements ...Edge counting (falling-edge) Counter direction ...Count up Pull-up resistor...4.7 kΩ to 5 V Maximum input frequency ...5 MHz Minimum high pulse width...100 ns NI USB-6008/6009 User Guide and Specifications Level Units –0.3 μA — —...

  • Page 29: Bus Interface

    Without connectors ... 54 g (1.9 oz) (2.50 in. × 3.35 in. × 0.91 in.) (3.22 in. × 3.35 in. × 0.91 in.) (2) 16 position terminal block plug headers (2.0–2.2 lb · in.) NI USB-6008/6009 User Guide and Specifications...

  • Page 30: Safety Voltages

    Note ni.com/certification appropriate link in the Certification column. Hazardous Locations The NI USB-6008/6009 are not certified for use in hazardous locations. Environmental The NI USB-6008/6009 device is intended for indoor use only. Operating temperature (IEC 60068-2-1 and IEC 60068-2-2)...0 to 55 °C Operating humidity (IEC 60068-2-56) ...5 to 95% RH, noncondensing...

  • Page 31: Electromagnetic Compatibility

    Certification column. Environmental Management National Instruments is committed to designing and manufacturing products in an environmentally responsible manner. NI recognizes that eliminating certain hazardous substances from our products is beneficial not only to the environment but also to NI customers.

  • Page 32: Waste Electrical And Electronic Equipment (Weee)

    Instruments trademarks. Other product and company names mentioned herein are trademarks or trade names of their respective companies. For patents covering National Instruments products, refer to the appropriate location: Help»Patents in your software, the patents.txt file on your CD, or ni.com/patents.

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