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NI USB6501的data sheet.pdf
Requirements and Compatibility Ordering Information Detailed Specifications
For user manuals and dimensional drawings, visit the product page resources tab on ni.com.
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Pinouts/Front Panel Connections
Last Revised: 2014-11-06 07:14:35.0
NI USB-6501
Low-Cost USB Digital I/O Device
Small, portable digital I/O device
24 digital I/O lines, one 32-bit counter
Overvoltage protection, 8.5 mA current drive
Full-speed USB (12 Mbit/s) bus interface
Built-in screw terminals with removable connectors for easier connectivity
OEM version available with 34-pin IDC mass termination connectivity
Overview
The NI USB-6501 is a portable digital I/O device that provides reliable data acquisition and control at a low price. With plug-and-play USB connectivity, the USB-6501 is simple
enough for home/academic applications but robust and versatile enough for laboratory/industrial applications. The board-only version is ideal for embedded OEM applications.
Requirements and Compatibility
OS Information
Linux®
Mac OS X
Windows 2000/XP
Windows 7
Windows Vista x64/x86
Driver Information
NI-DAQmx
Software Compatibility
ANSI C
LabVIEW
LabWindows/CVI
Measurement Studio
Visual Basic
Visual Studio
Visual Studio .NET
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Comparison Tables
Product
Bus
Digital I/O Lines
Counters
Current Drive
Logic Level
Industrial Feature Set
NI 6501
USB
24
1
8.5 mA
5 V TTL/CMOS
No
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Application and Technology
Hardware
The USB-6501 is a full-speed USB device that provides 24 DIO lines and a 32-bit counter. The 24 digital lines are arranged in three ports: P0.<0..7>, P1.<0..7>, and P2.<0..7>.
P2.7 can also function as a 32-bit counter. You can individually program each of the USB-6501 DIO lines as a DI or DO line and use the DIO lines to monitor or control digital
signals. All samples of the DI lines and updates of the DO lines are software-timed. The default configuration of the USB-6501 DIO ports is open-drain for 5 V operation with an
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onboard 4.7 kΩ pull-up resistor. You can add an external, user-provided, pull-up resistor to increase the source current drive up to 8.5 mA per line. Each DIO signal is protected
against overvoltage, undervoltage, and overcurrent conditions as well as ESD events. At system startup and reset, the hardware sets all DIO lines to high-impedance inputs.
The data acquisition device does not drive the signal high or low. Each line has a weak pull-up resistor connected to it. You can configure P2.7 as the source for a 32-bit counter.
In this mode, the device counts high to low transitions (falling edges) on P2.7. You can arm and disarm the counter and read or reset the counter through software. The USB-6501
supplies a nominal 5 V from two pins, one on each screw-terminal block. You can use the voltage source, which is provided by the USB host, to power external components. The
USB-6501 features current-limiting short-circuit protection for safe USB host power use.
Figure 1. Example of Connecting a Load
Software
The USB-6501 is shipped with NI-DAQmx measurement services software, a high-performance multithreaded driver for interactive configuration and data acquisition. Use it to
develop customized data acquisition applications with NI LabVIEW or C-based development environments. Examples include an interactive control panel to help you get started
with your application quickly.
Figure 2. Interactive Control Panel Example Program Shipped with the USB-6501
Recommended Accessories
The USB-6501 has built-in screw terminals for connectivity; no additional accessories are required.
Board-Only Version for OEMs
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A board-only version of the USB-6501 (part number 192317-50) is available to OEMs for use in embedded applications. The OEM version offers a 34-pin IDC ribbon cable header
for mass termination instead of screw-terminal connectivity. You can mount the OEM version using standoffs (not included in kit) with your own enclosure. For information on
special configurations and pricing, visit
ni.com/oem
.
Ordering Information
For a complete list of accessories, visit the product page on ni.com.
Products
NI USB-6501
NI USB-6501
Part Number
Recommended Accessories
Part Number
779205-01
No accessories required.
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Software Recommendations
LabVIEW Professional
Development System for
Windows
NI LabWindows™/CVI for
Windows
Advanced software tools for large project
development
Automatic code generation using DAQ
Assistant and Instrument I/O Assistant
Tight integration with a wide range of
hardware
Advanced measurement analysis and digital
signal processing
Open connectivity with DLLs, ActiveX, and
.NET objects
Capability to build DLLs, executables, and
MSI installers
Real-time advanced 2D graphs and charts
Complete hardware compatibility with IVI,
VISA, DAQ, GPIB, and serial
Analysis tools for array manipulation, signal
processing statistics, and curve fitting
Simplified cross-platform communication with
network variables
Measurement Studio .NET tools (included in
LabWindows/CVI Full only)
The mark LabWindows is used under a
license from Microsoft Corporation.
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Support and Services
System Assurance Programs
NI system assurance programs are designed to make it even easier for you to own an NI system. These programs include configuration and deployment services for your NI PXI,
CompactRIO, or Compact FieldPoint system. The NI Basic System Assurance Program provides a simple integration test and ensures that your system is delivered completely
assembled in one box. When you configure your system with the NI Standard System Assurance Program, you can select from available NI system driver sets and application
development environments to create customized, reorderable software configurations. Your system arrives fully assembled and tested in one box with your software preinstalled.
When you order your system with the standard program, you also receive system-specific documentation including a bill of materials, an integration test report, a recommended
maintenance plan, and frequently asked question documents. Finally, the standard program reduces the total cost of owning an NI system by providing three years of warranty
coverage and calibration service. Use the online product advisors at ni.com/advisor to find a system assurance program to meet your needs.
Calibration
NI measurement hardware is calibrated to ensure measurement accuracy and verify that the device meets its published specifications. To ensure the ongoing accuracy of your
measurement hardware, NI offers basic or detailed recalibration service that provides ongoing ISO 9001 audit compliance and confidence in your measurements. To learn more
about NI calibration services or to locate a qualified service center near you, contact your local sales office or visit ni.com/calibration.
Technical Support
Get answers to your technical questions using the following National Instruments resources.
Support - Visit ni.com/support to access the NI KnowledgeBase, example programs, and tutorials or to contact our applications engineers who are located in NI sales
offices around the world and speak the local language.
Discussion Forums - Visit forums.ni.com for a diverse set of discussion boards on topics you care about.
Online Community - Visit community.ni.com to find, contribute, or collaborate on customer-contributed technical content with users like you.
Repair
While you may never need your hardware repaired, NI understands that unexpected events may lead to necessary repairs. NI offers repair services performed by highly trained
technicians who quickly return your device with the guarantee that it will perform to factory specifications. For more information, visit ni.com/repair.
Training and Certifications
The NI training and certification program delivers the fastest, most certain route to increased proficiency and productivity using NI software and hardware. Training builds the skills
to more efficiently develop robust, maintainable applications, while certification validates your knowledge and ability.
Classroom training in cities worldwide - the most comprehensive hands-on training taught by engineers.
On-site training at your facility - an excellent option to train multiple employees at the same time.
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On-site training at your facility - an excellent option to train multiple employees at the same time.
Online instructor-led training - lower-cost, remote training if classroom or on-site courses are not possible.
Course kits - lowest-cost, self-paced training that you can use as reference guides.
Training memberships and training credits - to buy now and schedule training later.
Visit ni.com/training for more information.
Extended Warranty
NI offers options for extending the standard product warranty to meet the life-cycle requirements of your project. In addition, because NI understands that your requirements may
change, the extended warranty is flexible in length and easily renewed. For more information, visit ni.com/warranty.
OEM
NI offers design-in consulting and product integration assistance if you need NI products for OEM applications. For information about special pricing and services for OEM
customers, visit ni.com/oem.
Alliance
Our Professional Services Team is comprised of NI applications engineers, NI Consulting Services, and a worldwide National Instruments Alliance Partner program of more than
700 independent consultants and integrators. Services range from start-up assistance to turnkey system integration. Visit ni.com/alliance.
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Detailed Specifications
The following specifications are typical at 25 °C, unless otherwise noted. All voltages are relative to COM unless otherwise noted.
Digital I/O
Number of lines
P0.<0..7>
P1.<0..7>
P2.<0..7>
Direction control
Output driver type
Pull-up resistor
Absolute voltage range
Power-on state
Digital Logic Levels
Input low voltage
Input high voltage
Input leakage current
Output low voltage
Open collector (open-drain) or active drive (push-pull)
I
I
OL
OL
= 2 mA
= 8.5 mA
Output high voltage
Active drive (push-pull
1
)
I
I
OH
OH
= –2 mA
= –8.5 mA
Open collector (open-drain), I
Open collector (open-drain), I
OH
OH
= –0.4 mA, nominal
= –7.5 mA, with external pull-up resistor
Counter
Number of counters
8
8
8
Input or output, software-selectable
Active drive (push-pull) or open collector (open-drain), software selectable
4.7 kΩ VBus (nominally 5 V)
– 0.5 to 5.8 V with respect to GND
Input (high impedance)
–0.3 V min, 0.8 V max
2.0 V min, 5.8 V max
50.0 μA max
0.4 V max
0.8 V max
2.8 V min, 3.6 V max
2.0 V min, 3.5 V max
2.0 V min, 5.0 V max
2.0 V min
1 (P2.7 can be configured as a counter)
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Resolution
Counter measurements
Maximum input frequency
Minimum high pulse width
Minimum low pulse width
Bus Interface
USB specification
External Voltage
+5 V output
Voltage
Current
Power Requirements
USB
Input voltage
Active current
Suspend current
Physical Characteristics
Dimensions
Without connectors
With connectors
I/O connectors
Screw-terminal wiring
Torque for screw terminals
Weight
Safety
If you need to clean the module, wipe it with a dry towel.
Overvoltage Protection
Connect only voltages that are within these limits.
Channel-to-COM (one channel)
Channels-to-COM (one port, all channels)
32 bits
Falling edge counting
5 MHz
100 ns
100 ns
USB 2.0 Full-Speed (12 Mb/s)
4.00 V min, 5.25 V max
230 mA max
4.50 to 5.25 VDC, in configured state
80 mA typical, 500 mA max
500 μA max, all DIO lines disconnected
6.35 cm × 8.51 cm × 2.31 cm (2.50 in. × 3.35 in. × 0.91 in.)
8.18 cm × 8.51 cm × 2.31 cm (3.22 in. × 3.35 in. × 0.91 in.)
USB series B receptacle, (2) 16 position (screw terminal) plug headers
16 to 28 AWG copper conductor wire with 10 mm (0.39 in.) of insulation
stripped from the end
0.22 – 0.25 N · m (2.0 – 2.2 lb · in.)
84 g (3 oz)
±30 V max, Measurement Category I
±8.9 V max, Measurement Category I
Measurement Category I is for measurements performed on circuits not directly connected to the electrical distribution system referred to as MAINS
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.
voltage. This category is for
2
Caution Do
not
use this module for connection to signals or for measurements within Measurement Categories II, III, or IV.
Safety Standards
This product is designed to meet the requirements of the following standards of safety for electrical equipment for measurement, control, and laboratory use:
IEC 61010-1, EN 61010-1
UL 61010-1, CSA 61010-1
Note For UL and other safety certifications, refer to the product label or the
Online Product Certification
section.
Hazardous Locations
This device is not certified for use in hazardous locations.
Environmental
The NI USB-6501 device is intended for indoor use only.
Operating temperature (IEC 60068-2-1 and IEC 60068-2-2)
Operating humidity (IEC 60068-2-56)
Maximum altitude
0 to 55 °C
5 to 95% RH, noncondensing
2,000 m (at 25 °C ambient temperature)
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Storage temperature (IEC 60068-2-1 and IEC 60068-2-2)
Storage humidity (IEC 60068-2-56)
Pollution Degree (IEC 60664)
Electromagnetic Compatibility
– 40 to 85 °C
5 to 90% RH, noncondensing
2
This product is designed to meet the requirements of the following standards of EMC for electrical equipment for measurement, control, and laboratory use:
EN 61326 EMC requirements; Minimum Immunity
EN 55011 Emissions; Group 1, Class A
CE, C-Tick, ICES, and FCC Part 15 Emissions; Class A
Note For EMC compliance, operate this device with double-shielded cables.
CE Compliance
This product meets the essential requirements of applicable European Directives, as amended for CE marking, as follows:
2006/95/EC; Low-Voltage Directive (safety)
2004/108/EC; Electromagnetic Compatibility Directive (EMC)
Note For the standards applied to assess the EMC of this product, refer to the
Online Product Certification
section.
Online Product Certification
Refer to the product Declaration of Conformity (DoC) for additional regulatory compliance information. To obtain product certifications and the DoC for this product, visit
ni.com/certification
, search by module number or product line, and click the appropriate link in the 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.
For additional environmental information, refer to the
with which NI complies, as well as other environmental information not included in this document.
NI and the Environment
Web page at
ni.com/environment
. This page contains the environmental regulations and directives
Waste Electrical and Electronic Equipment (WEEE)
EU Customers At the end of their life cycle, all products
Instruments WEEE initiatives, visit
ni.com/environment/weee.htm
.
must
be sent to a WEEE recycling center. For more information about WEEE recycling centers and National
1 The total current sourced by all DO lines simultaneously should not exceed 65 mA.
2 MAINS is defined as the (hazardous live) electrical supply system to which equipment is designed to be connected for the purpose of powering the equipment. Suitably rated
measuring circuits may be connected to the MAINS for measuring purposes.
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Pinouts/Front Panel Connections
NI USB-6501 Digital Terminal Assignments, Left
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NI USB-6501 Digital Terminal Assignments, Right
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©2010 National Instruments. All rights reserved. CompactRIO, CVI, FieldPoint, LabVIEW, Measurement Studio, National Instruments, National Instruments Alliance Partner, NI, ni.com, NI-DAQ, and SignalExpress
are trademarks of National Instruments. The mark LabWindows is used under a license from Microsoft Corporation. Windows is a registered trademark of Microsoft Corporation in the United States and other
countries. Other product and company names listed are trademarks or trade names of their respective companies. A National Instruments Alliance Partner is a business entity independent from National Instruments
and has no agency, partnership, or joint-venture relationship with National Instruments.
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