National Instruments 6008 User Manual

USER GUIDE AND SPECIFICATIONS

NI USB-6008/6009

This 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.

Note This manual revision updates naming conventions to reflect the conventions used in

NI-DAQmx. Table 1 notes the correlation between the old and updated names.

Table 1. Digital Output Driver Type Naming Conventions

Hardware Functionality NI-DAQmx Terminology

Open-drain Open collector

Push-pull Active drive

Table 2. Differences Between the NI USB-6008 and NI USB-6009

Feature NI USB-6008 NI USB-6009

AI Resolution 12 bits differential,

11 bits single-ended

Maximum AI Sample Rate, Single Channel

Maximum AI Sample Rate, Multiple Channels (Aggregate)

10 kS/s 48 kS/s

14 bits differential,

13 bits single-ended

DIO Configuration Open collector Open collector or active drive

System dependent.

1 Analog 16

NI USB-6009

8 Inputs, 14-bit, Multifunction I/O

32 Digital 17

1 USB Cable Strain Relief

Figure 1. NI USB-6008/6009

Figure 2. NI USB-6008/6009 Back View

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Safety Guidelines

Caution Operate the hardware only as described in these operating instructions.

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. If the device is damaged, contact National Instruments for repair.

Do not substitute parts or modify the device except as described in this document. Use the device only with the chassis, modules, accessories, and cables specified in the installation instructions. You must have all covers and filler panels installed during operation of the device.

Do not operate the device in an explosive atmosphere or where there may be flammable gases or fumes. If you must operate the device in such an environment, it must be in a suitably rated enclosure.

If you need to clean the device, use a dry cloth. Make sure that the device is completely dry and free from contaminants before returning it to service.

Operate the device only at or below Pollution Degree 2. Pollution is foreign matter in a solid, liquid, or gaseous state that can reduce dielectric strength or surface resistivity. The following is a description of pollution degrees:

• Pollution Degree 1 means no pollution or only dry, nonconductive pollution occurs. The pollution has no influence.

• Pollution Degree 2 means that only nonconductive pollution occurs in most cases. Occasionally, however, a temporary conductivity caused by condensation must be expected.

• Pollution Degree 3 means that conductive pollution occurs, or dry, nonconductive pollution occurs that becomes conductive due to condensation.

You must insulate signal connections for the maximum voltage for which the device is rated. Do not exceed the maximum ratings for the device. Do not install wiring while the device is live with electrical signals. Do not remove or add connector blocks when power is connected to the system. Avoid contact between your body and the connector block signal when hot swapping modules. Remove power from signal lines before connecting them to or disconnecting them from the device.

Operate the device at or below the Measurement Category I1. Measurement

circuits are subjected to working voltages

and transient stresses (overvoltage) from the circuit to which they are connected during measurement or test. Measurement categories establish standard impulse withstand voltage levels that commonly occur in electrical distribution systems. The following is a description of measurement categories:

• Measurement Category I is for measurements performed on circuits

not directly connected to the electrical distribution system referred to

as MAINS

voltage. This category is for measurements of voltages from specially protected secondary circuits. Such voltage measurements include signal levels, special equipment, limited-energy parts of equipment, circuits powered by regulated low-voltage sources, and electronics.

• Measurement Category II is for measurements performed on circuits directly connected to the electrical distribution system. This category refers to local-level electrical distribution, such as that provided by a standard wall outlet (for example, 115 V for U.S. or 230 V for Europe). Examples of Measurement Category II are measurements performed on household appliances, portable tools, and similar E Series devices.

• Measurement Category III is for measurements performed in the building installation at the distribution level. This category refers to measurements on hard-wired equipment such as equipment in fixed installations, distribution boards, and circuit breakers. Other examples are wiring, including cables, bus-bars, junction boxes, switches, socket-outlets in the fixed installation, and stationary motors with permanent connections to fixed installations.

• 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.

Measurement Category as defined in electrical safety standard IEC 61010-1. Measurement Category is also referred to as Installation Category.

Working Voltage is the highest rms value of an AC or DC voltage that can occur across any particular insulation.

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 4 ni.com

Software

Software support for the NI USB-6008/6009 for Windows 2000/XP/Vista is provided by NI-DAQmx.

The NI-DAQmx CD contains example programs that you can use to get started programming with the NI USB-6008/6009. Refer to the NI-DAQmx for USB Devices Getting Started Guide, that shipped with your device and is also accessible from Start»All Programs»National Instruments» NI-DAQ for more information.

Note For information about non-Windows operating system support, refer to

ni.com/info and enter rddqld.

LabVIEW SignalExpress for DAQ

The NI-DAQmx CD includes LabVIEW SignalExpress for DAQ which is an interactive, measurement software tool for quickly acquiring, analyzing, and presenting data with no programming required. The application is available at Start»All Programs»National Instruments»

LabVIEW SignalExpress.

NI DAQ»

Hardware

The following block diagram shows key functional components of the NI USB-6008/6009.

Full-Speed USB Interface

Vbus

USB

External

Powe r

Supply

USB Microcontroller

SPI

8 Channel

12/14b ADC

12b DAC

+5 V/200 mA

PFI 0

P1.<0..3>

P0.<0..7>

+2.5 V/CAL

AI <0..7>

AO 0

AO 1

Digital I/O Terminal Block

Analog I/O Terminal Block

Figure 3. Device Block Diagram

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Setting Up Hardware

Complete the following steps to set up the hardware:

1. Install combicon screw terminal blocks by inserting them into the combicon jacks.

2. Figure 4 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.

1 Terminal Number Labels (Use Both Together) 2 Digital I/O Label

ANALOG DIGITAL

3. Refer to Table 3 and Figures 4 and 5 for signal label orientation and affix the provided signal labels to the screw terminal blocks. Until the signal labels are applied, you can insert the screw terminal blocks into either of the combicon jacks.

3 Single-Ended Label (Use Either) 4 Differential Label (Use Either)

Figure 4. NI USB-6008/6009 Signal Labels

latigiD

9006-BSU IN

I noi

cnufitluM

golanA

1 Overlay Label with Pin Orientation Guides 2 Combicon Jack

,tib-41 ,stupnI 8

3 Signal Labels 4 USB Cable

Figure 5. Signal Label Application Diagram

Note

Once you label the screw terminal blocks, you must only insert them into the matching combicon jack, as indicated by the overlay label on the NI USB-6008/6009 device.

4. Connect the wiring to the appropriate screw terminals.

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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 3 lists the analog terminal assignments, and Table 4 lists the digital terminal assignments.

Table 3. Analog Terminal Assignments

Module Ter mi na l

1 GND GND

2 AI 0 AI 0+

3 AI 4 AI 0–

4 GND GND

12345678910111213141516

5 AI 1 AI 1+

6 AI 5 AI 1–

7 GND GND

8 AI 2 AI 2+

9 AI 6 AI 2–

10 GND GND

11 AI 3 AI 3+

12 AI 7 AI 3–

Signal,

Single-Ended Mode

Signal,

Differential Mode

13 GND GND

14 AO 0 AO 0

15 AO 1 AO 1

16 GND GND

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