National Instruments PCI-6035E Manual de usuario

PCI-6035E

DAQ E Series

E Series User Manual

February 2007

370503K-01

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Important Information

Warranty

The E Series devices are warranted against defects in materials and workmanship for a period of one year from the date of shipment, as

evidenced by receipts or other documentation. National Instruments will, at its option, repair or replace equipment that proves to be defective

during the warranty period. This warranty includes parts and labor.

The media on which you receive National Instruments software are warranted not to fail to execute programming instructions, due to defects in

materials and workmanship, for a period of 90 days from date of shipment, as evidenced by receipts or other documentation. National Instruments

will, at its option, repair or replace software media that do not execute programming instructions if National Instruments receives notice of such defects

during the warranty period. National Instruments does not warrant that the operation of the software shall be uninterrupted or error free.

A Return Material Authorization (RMA) number must be obtained from the factory and clearly marked on the outside of the package before any

equipment will be accepted for warranty work. National Instruments will pay the shipping costs of returning to the owner parts which are covered by

warranty.

National Instruments believes that the information in this document is accurate. The document has been carefully reviewed for technical accuracy. In

the event that technical or typographical errors exist, National Instruments reserves the right to make changes to subsequent editions of this document

without prior notice to holders of this edition. The reader should consult National Instruments if errors are suspected. In no event shall National

Instruments be liable for any damages arising out of or related to this document or the information contained in it.

EXCEPT AS SPECIFIED HEREIN, NATIONAL INSTRUMENTS MAKES NO WARRANTIES, EXPRESS OR IMPLIED, AND SPECIFICALLY DISCLAIMS ANY WARRANTY OF

MERCHANTABILITY OR FITNESS FOR APARTICULAR PURPOSE. CUSTOMER’SRIGHT TO RECOVER DAMAGES CAUSED BY FAULT OR NEGLIGENCE ON THE PART OF NATIONAL

INSTRUMENTS SHALL BE LIMITED TO THE AMOUNT THERETOFORE PAID BY THE CUSTOMER. NATIONAL INSTRUMENTS WILL NOT BE LIABLE FOR DAMAGES RESULTING

FROM LOSS OF DATA, PROFITS, USE OF PRODUCTS, OR INCIDENTAL OR CONSEQUENTIAL DAMAGES, EVEN IF ADVISED OF THE POSSIBILITY THEREOF. This limitation of

the liability of National Instruments will apply regardless of the form of action, whether in contract or tort, including negligence. Any action against

National Instruments must be brought within one year after the cause of action accrues. National Instruments shall not be liable for any delay in

performance due to causes beyond its reasonable control. The warranty provided herein does not cover damages, defects, malfunctions, or service

failures caused by owner’s failure to follow the National Instruments installation, operation, or maintenance instructions; owner’s modification of the

product; owner’s abuse, misuse, or negligent acts; and power failure or surges, fire, flood, accident, actions of third parties, or other events outside

reasonable control.

Under the copyright laws, this publication may not be reproduced or transmitted in any form, electronic or mechanical, including photocopying,

recording, storing in an information retrieval system, or translating, in whole or in part, without the prior written consent of National

Instruments Corporation.

National Instruments respects the intellectual property of others, and we ask our users to do the same. NI software is protected by copyright and other

intellectual property laws. Where NI software may be used to reproduce software or other materials belonging to others, you may use NI software only

to reproduce materials that you may reproduce in accordance with the terms of any applicable license or other legal restriction.

Trademarks

National Instruments, NI, ni.com, and LabVIEW are trademarks of National Instruments Corporation. Refer to the Terms of Use section

on ni.com/legal for more information about National Instruments trademarks.

FireWire®is the registered trademark of Apple Computer, Inc. Other product and company names mentioned herein are trademarks or trade names

of their respective companies.

Members of the National Instruments Alliance Partner Program are business entities independent from National Instruments and have no agency,

partnership, or joint-venture relationship with National Instruments.

Patents

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.

WARNING REGARDING USE OF NATIONAL INSTRUMENTS PRODUCTS

(1) NATIONAL INSTRUMENTS PRODUCTS ARE NOT DESIGNED WITH COMPONENTS AND TESTING FOR A LEVEL OF

RELIABILITY SUITABLE FOR USE IN OR IN CONNECTION WITH SURGICAL IMPLANTS OR AS CRITICAL COMPONENTS IN

ANY LIFE SUPPORT SYSTEMS WHOSE FAILURE TO PERFORM CAN REASONABLY BE EXPECTED TO CAUSE SIGNIFICANT

INJURY TO A HUMAN.

(2) IN ANY APPLICATION, INCLUDING THE ABOVE, RELIABILITY OF OPERATION OF THE SOFTWARE PRODUCTS CAN BE

IMPAIRED BY ADVERSE FACTORS, INCLUDING BUT NOT LIMITED TO FLUCTUATIONS IN ELECTRICAL POWER SUPPLY,

COMPUTER HARDWARE MALFUNCTIONS, COMPUTER OPERATING SYSTEM SOFTWARE FITNESS, FITNESS OF COMPILERS

AND DEVELOPMENT SOFTWARE USED TO DEVELOP AN APPLICATION, INSTALLATION ERRORS, SOFTWARE AND HARDWARE

COMPATIBILITY PROBLEMS, MALFUNCTIONS OR FAILURES OF ELECTRONIC MONITORING OR CONTROL DEVICES,

TRANSIENT FAILURES OF ELECTRONIC SYSTEMS (HARDWARE AND/OR SOFTWARE), UNANTICIPATED USES OR MISUSES, OR

ERRORS ON THE PART OF THE USER OR APPLICATIONS DESIGNER (ADVERSE FACTORS SUCH AS THESE ARE HEREAFTER

COLLECTIVELY TERMED “SYSTEM FAILURES”). ANY APPLICATION WHERE A SYSTEM FAILURE WOULD CREATE A RISK OF

HARM TO PROPERTY OR PERSONS (INCLUDING THE RISK OF BODILY INJURY AND DEATH) SHOULD NOT BE RELIANT SOLELY

UPON ONE FORM OF ELECTRONIC SYSTEM DUE TO THE RISK OF SYSTEM FAILURE. TO AVOID DAMAGE, INJURY, OR DEATH,

THE USER OR APPLICATION DESIGNER MUST TAKE REASONABLY PRUDENT STEPS TO PROTECT AGAINST SYSTEM FAILURES,

INCLUDING BUT NOT LIMITED TO BACK-UP OR SHUT DOWN MECHANISMS. BECAUSE EACH END-USER SYSTEM IS

CUSTOMIZED AND DIFFERS FROM NATIONAL INSTRUMENTS' TESTING PLATFORMS AND BECAUSE A USER OR APPLICATION

DESIGNER MAY USE NATIONAL INSTRUMENTS PRODUCTS IN COMBINATION WITH OTHER PRODUCTS IN A MANNER NOT

EVALUATED OR CONTEMPLATED BY NATIONAL INSTRUMENTS, THE USER OR APPLICATION DESIGNER IS ULTIMATELY

RESPONSIBLE FOR VERIFYING AND VALIDATING THE SUITABILITY OF NATIONAL INSTRUMENTS PRODUCTS WHENEVER

NATIONAL INSTRUMENTS PRODUCTS ARE INCORPORATED IN A SYSTEM OR APPLICATION, INCLUDING, WITHOUT

LIMITATION, THE APPROPRIATE DESIGN, PROCESS AND SAFETY LEVEL OF SUCH SYSTEM OR APPLICATION.

Compliance

Compliance with FCC/Canada Radio Frequency Interference

Regulations

Determining FCC Class

The Federal Communications Commission (FCC) has rules to protect wireless communications from interference. The FCC

places digital electronics into two classes. These classes are known as Class A (for use in industrial commercial locations only)

or Class B (for use in residential or commercial locations). All National Instruments (NI) products are FCC Class A products.

Depending on where it is operated, this Class A product could be subject to restrictions in the FCC rules. (In Canada, the

Department of Communications (DOC), of Industry Canada, regulates wireless interference in much the same way.) Digital

electronics emit weak signals during normal operation that can affect radio, television, or other wireless products.

All Class A products display a simple warning statement of one paragraph in length regarding interference and undesired

operation. The FCC rules have restrictions regarding the locations where FCC Class A products can be operated.

Consult the FCC Web site at www.fcc.gov for more information.

FCC/DOC Warnings

This equipment generates and uses radio frequency energy and, if not installed and used in strict accordance with the instructions

in this manual and the CE marking Declaration of Conformity*, may cause interference to radio and television reception.

Classification requirements are the same for the Federal Communications Commission (FCC) and the Canadian Department

of Communications (DOC).

Changes or modifications not expressly approved by NI could void the user’s authority to operate the equipment under the

FCC Rules.

Class A

Federal Communications Commission

This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to part 15 of the FCC

Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated

in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and

used in accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this

equipment in a residential area is likely to cause harmful interference in which case the user is required to correct the interference

at their own expense.

Canadian Department of Communications

This Class A digital apparatus meets all requirements of the Canadian InterferenceCausing Equipment Regulations.

Cet appareil numérique de la classe A respecte toutes les exigences du Règlement sur le matériel brouilleur du Canada.

Compliance with EU Directives

Users in the European Union (EU) should refer to the Declaration of Conformity (DoC) for information* pertaining to the

CE marking. Refer to the Declaration of Conformity (DoC) for this product for any additional regulatory compliance

information. To obtain the DoC for this product, visit ni.com/certification, search by model number or product line,

and click the appropriate link in the Certification column.

* The CE marking Declaration of Conformity contains important supplementary information and instructions for the user or

installer.

©National Instruments Corporation vii E Series User Manual

Contents

About This Manual

Conventions ...................................................................................................................xv

Related Documentation..................................................................................................xvi

NI-DAQ for Windows.....................................................................................xvi

NI-DAQmx for Linux......................................................................................xvi

NI-DAQmx Base .............................................................................................xvii

LabVIEW ........................................................................................................xvii

LabWindows/CVI............................................................................................xviii

Measurement Studio........................................................................................xviii

ANSI C without NI Application Software ......................................................xix

.NET Languages without NI Application Software ........................................xix

Device Documentation and Specifications......................................................xx

Training Courses .............................................................................................xx

Technical Support on the Web ........................................................................xx

Chapter 1

DAQ System Overview

DAQ Hardware ..............................................................................................................1-2

DAQ-STC........................................................................................................1-3

Calibration Circuitry........................................................................................1-3

Internal or Self-Calibration ...............................................................1-4

External Calibration ..........................................................................1-4

Signal Conditioning .......................................................................................................1-4

Sensors and Transducers .................................................................................1-4

Signal Conditioning Options ...........................................................................1-5

SCXI..................................................................................................1-5

SCC ...................................................................................................1-6

5B Series ...........................................................................................1-6

Cables and Accessories..................................................................................................1-6

Using Accessories with Devices .....................................................................1-7

Custom Cabling ...............................................................................................1-9

Programming Devices in Software ................................................................................1-10

I/O Connector Signal Descriptions ................................................................................1-11

Terminal Name Equivalents ..........................................................................................1-14

+5 V Power Source ........................................................................................................1-16

Contents

E Series User Manual viii ni.com

Chapter 2

Analog Input

Analog Input Circuitry .................................................................................................. 2-1

Mux ................................................................................................................. 2-1

Instrumentation Amplifier (NI-PGIA) ............................................................ 2-2

A/D Converter................................................................................................. 2-2

AI FIFO........................................................................................................... 2-2

Analog Trigger................................................................................................ 2-2

AI Timing Signals........................................................................................... 2-2

Input Polarity and Range ............................................................................................... 2-2

Analog Input Terminal Configuration........................................................................... 2-5

Dither............................................................................................................................. 2-8

Multichannel Scanning Considerations......................................................................... 2-9

Use Low Impedance Sources.......................................................................... 2-10

Use Short High-Quality Cabling..................................................................... 2-11

Carefully Choose the Channel Scanning Order .............................................. 2-11

Avoid Switching from a Large to a Small Input Range ................... 2-11

Insert Grounded Channel between Signal Channels ........................ 2-11

Minimize Voltage Step between Adjacent Channels ....................... 2-12

Avoid Scanning Faster than Necessary........................................................... 2-12

Example 1 ......................................................................................... 2-12

Example 2 ......................................................................................... 2-13

AI Data Acquisition Methods ......................................................................... 2-13

Software-Timed Acquisitions........................................................... 2-13

Hardware-Timed Acquisitions ......................................................... 2-13

Analog Input Triggering................................................................................................ 2-14

AI Start Trigger Signal.................................................................................... 2-15

Using a Digital Source...................................................................... 2-15

Using an Analog Source ................................................................... 2-15

Outputting the AI Start Trigger Signal ........................................................... 2-16

AI Reference Trigger Signal ........................................................................... 2-16

Using a Digital Source...................................................................... 2-18

Using an Analog Source ................................................................... 2-18

Outputting the AI Reference Trigger Signal .................................... 2-18

AI Pause Trigger Signal.................................................................................. 2-19

Using a Digital Source...................................................................... 2-19

Using an Analog Source ................................................................... 2-19

Connecting Analog Input Signals.................................................................................. 2-20

Types of Signal Sources.................................................................................. 2-22

Floating Signal Sources .................................................................... 2-22

Ground-Referenced Signal Sources.................................................. 2-22

Contents

©National Instruments Corporation ix E Series User Manual

Differential Connection Considerations ........................................................................2-22

Differential Connections for Ground-Referenced Signal Sources ..................2-23

Common-Mode Signal Rejection Considerations.............................2-24

Differential Connections for Non-Referenced or

Floating Signal Sources ................................................................................2-24

Single-Ended Connection Considerations .....................................................................2-26

Common-Mode Signal Rejection Considerations ...........................................2-26

Single-Ended Connections for Floating Signal Sources

(RSE Configuration).....................................................................................2-27

Single-Ended Connections for Grounded Signal Sources

(NRSE Configuration)..................................................................................2-27

Field Wiring Considerations..........................................................................................2-28

Configuring AI Modes in Software ...............................................................................2-29

Traditional NI-DAQ (Legacy).........................................................................2-29

NI-DAQmx......................................................................................................2-29

Analog Input Timing Signals.........................................................................................2-30

AI Start Trigger Signal ....................................................................................2-32

Using a Digital Source ......................................................................2-33

Using an Analog Source ...................................................................2-33

Outputting the AI Start Trigger Signal .............................................2-33

AI Reference Trigger Signal ...........................................................................2-34

Using a Digital Source ......................................................................2-35

Using an Analog Source ...................................................................2-36

Outputting the AI Reference Trigger Signal.....................................2-36

AI Pause Trigger Signal ..................................................................................2-36

Using a Digital Source ......................................................................2-36

Using an Analog Source ...................................................................2-37

AI Sample Clock Signal ..................................................................................2-37

Using an Internal Source...................................................................2-37

Using an External Source..................................................................2-37

Outputting the AI Sample Clock Signal ...........................................2-38

Other Timing Requirements..............................................................2-39

AI Sample Clock Timebase Signal..................................................................2-40

AI Convert Clock Signal .................................................................................2-41

Using an Internal Source...................................................................2-41

Using an External Source..................................................................2-42

Outputting the AI Convert Clock Signal...........................................2-42

Using a Delay from Sample Clock to Convert Clock.......................2-43

Other Timing Requirements..............................................................2-43

AI Convert Clock Timebase Signal.................................................................2-45

Master Timebase Signal ..................................................................................2-45

AI Hold Complete Event Signal......................................................................2-46

External Strobe Signal.....................................................................................2-46

Getting Started with AI Applications in Software.........................................................2-47

Contents

E Series User Manual x ni.com

Chapter 3

Analog Output

Analog Output Circuitry................................................................................................ 3-1

DACs............................................................................................................... 3-1

DAC FIFO....................................................................................................... 3-1

AO Sample Clock ........................................................................................... 3-2

Polarity and Reference Selection .................................................................... 3-2

Reference Selection ....................................................................................................... 3-2

Polarity Selection........................................................................................................... 3-3

Reglitch Selection.......................................................................................................... 3-3

Minimizing Glitches on the Output Signal.................................................................... 3-3

AO Data Generation Methods ....................................................................................... 3-4

Software-Timed Generations .......................................................................... 3-4

Hardware-Timed Generations......................................................................... 3-4

Buffered ............................................................................................ 3-4

Non-Buffered.................................................................................... 3-5

Analog Output Triggering ............................................................................................. 3-5

AO Start Trigger Signal .................................................................................. 3-6

Using a Digital Source...................................................................... 3-6

Using an Analog Source ................................................................... 3-6

Outputting the AO Start Trigger Signal ........................................... 3-6

AO Pause Trigger Signal ................................................................................ 3-7

Using a Digital Source...................................................................... 3-7

Using an Analog Source ................................................................... 3-7

Connecting Analog Output Signals ............................................................................... 3-8

Waveform Generation Timing Signals.......................................................................... 3-9

AO Start Trigger Signal .................................................................................. 3-9

Using a Digital Source...................................................................... 3-9

Using an Analog Source ................................................................... 3-10

Outputting the AO Start Trigger Signal ........................................... 3-10

AO Pause Trigger Signal ................................................................................ 3-10

Using a Digital Source...................................................................... 3-10

Using an Analog Source ................................................................... 3-11

AO Sample Clock Signal ................................................................................ 3-11

Using an Internal Source .................................................................. 3-11

Using an External Source ................................................................. 3-11

Outputting the AO Sample Clock Signal ......................................... 3-12

Other Timing Requirements ............................................................. 3-12

AO Sample Clock Timebase Signal................................................................ 3-13

Master Timebase Signal.................................................................................. 3-14

Getting Started with AO Applications in Software....................................................... 3-15

Contents

©National Instruments Corporation xi E Series User Manual

Chapter 4

Digital I/O

Extended Digital I/O......................................................................................................4-2

Port 3 Signal Assignments...............................................................................4-2

Power-On State................................................................................................4-3

Changing DIO Power-On State to Pulled Low .................................4-3

Timing Specifications......................................................................................4-4

Mode 1 Input Timing.......................................................................................4-6

Mode 1 Output Timing....................................................................................4-7

Mode 2 Bidirectional Timing ..........................................................................4-8

Power-On States of the PFI and DIO Lines...................................................................4-9

Connecting Digital I/O Signals......................................................................................4-9

Getting Started with DIO Applications in Software......................................................4-10

Chapter 5

Counters

Counter Triggering ........................................................................................................5-1

Start Trigger.....................................................................................................5-1

Pause Trigger...................................................................................................5-2

Counter Timing Signals .................................................................................................5-2

Counter 0 Source Signal..................................................................................5-3

Counter 0 Gate Signal .....................................................................................5-4

Counter 0 Internal Output Signal ....................................................................5-5

CTR 0 OUT Pin ................................................................................5-6

Counter 0 Up/Down Signal .............................................................................5-6

Counter 1 Source Signal..................................................................................5-6

Counter 1 Gate Signal .....................................................................................5-7

Counter 1 Internal Output Signal ....................................................................5-8

Counter 1 Up/Down Signal .............................................................................5-9

Frequency Output Signal.................................................................................5-9

Master Timebase Signal ..................................................................................5-9

Getting Started with Counter Applications in Software ................................................5-10

Chapter 6

Programmable Function Interfaces (PFI)

Inputs .............................................................................................................................6-1

Outputs...........................................................................................................................6-1

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