DAQ. 6711/6713/6715 User Manual. Analog Voltage Output Device for PCI/PXI/CompactPCI/PCMCIA/1394 Bus Computers

Transcription

1 DAQ 6711/6713/6715 User Manual Analog Voltage Output Device for PCI/PXI/CompactPCI/PCMCIA/1394 Bus Computers 6711/6713/6715 User Manual December 1999 Edition Part Number B-01

2 Worldwide Technical Support and Product Information National Instruments Corporate Headquarters North Mopac Expressway Austin, Texas USA Tel: Worldwide Offices Australia , Austria , Belgium , Brazil , Canada (Calgary) , Canada (Ontario) , Canada (Québec) , China , Denmark , Finland , France , Germany , Greece , Hong Kong , India , Israel , Italy , Japan , Korea , Mexico (D.F.) , Mexico (Monterrey) , Netherlands , Norway , Poland , Portugal , Singapore , Spain , Sweden , Switzerland , Taiwan , United Kingdom For further support information, see the Technical Support Resources appendix. To comment on the documentation, send to techpubs@ni.com Copyright 1998, 1999 National Instruments Corporation. All rights reserved.

3 Important Information Warranty The PCI-6711, PCI-6713, PXI-6711, PXI-6713, DAQPad-6713, and DAQCard-6715 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 A PARTICULAR PURPOSE. CUSTOMER S RIGHT 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. Copyright 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. Trademarks ComponentWorks, CVI, DAQCard, DAQPad, DAQ-STC, LabVIEW, MITE, National Instruments, ni.com, NI-DAQ, NI-PGIA, PXI, RTSI, SCXI, and VirtualBench are trademarks of National Instruments Corporation. Product and company names mentioned herein are trademarks or trade names of their respective companies. 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.

4 Contents About This Manual Conventions Used in This Manual...ix National Instruments Documentation...x Related Documentation...xi Chapter 1 Introduction About the 671X Devices Using PXI with CompactPCI What You Need to Get Started Unpacking Software Programming Choices National Instruments Application Software NI-DAQ Driver Software Register-Level Programming Optional Equipment Custom Cabling Chapter 2 Installation and Configuration Software Installation Hardware Installation Device Configuration Chapter 3 Hardware Overview Analog Output Analog Output Reference Selection Analog Output Reglitch Selection Digital I/O Timing Signal Routing Programmable Function Inputs Device and RTSI Clocks RTSI Triggers National Instruments Corporation v 6711/6713/6715 User Manual

5 Contents Chapter 4 Signal Connections I/O Connector I/O Connector Signal Descriptions Analog Output Signal Connections Digital I/O Signal Connections Power Connections Timing Connections Programmable Function Input Connections EXTSTROBE* Signal Waveform Generation Timing Connections WFTRIG Signal UPDATE* Signal UISOURCE Signal General-Purpose Timing Signal Connections GPCTR0_SOURCE Signal GPCTR0_GATE Signal GPCTR0_OUT Signal GPCTR0_UP_DOWN Signal GPCTR1_SOURCE Signal GPCTR1_GATE Signal GPCTR1_OUT Signal GPCTR1_UP_DOWN Signal FREQ_OUT Signal Field Wiring Considerations Chapter 5 Calibration Loading Calibration Constants Self-Calibration External Calibration Other Considerations Appendix A Specifications Appendix B Common Questions 6711/6713/6715 User Manual vi

6 Contents Appendix C Technical Support Resources Glossary Index Figures Figure 1-1. The Relationship Between the Programming Environment, NI-DAQ, and Your Hardware Figure /6713 Block Diagram Figure Block Diagram Figure 3-3. UPDATE* Signal Routing Figure 3-4. RTSI Bus Signal Connection Figure Pin I/O Connector Pin Assignment for the 671X Device Figure Pin I/O Connector Pin Assignment for the 671X Device When Using the SH68-50 Cable Figure 4-3. Analog Output Connections Figure 4-4. Digital I/O Connections Figure 4-5. Timing I/O Connections Figure 4-6. WFTRIG Input Signal Timing Figure 4-7. WFTRIG Output Signal Timing Figure 4-8. UPDATE* Input Signal Timing Figure 4-9. UPDATE* Output Signal Timing Figure UISOURCE Signal Timing Figure GPCTR0_SOURCE Signal Timing Figure GPCTR0_GATE Signal Timing in Edge-Detection Mode Figure GPCTR0_OUT Signal Timing Figure GPCTR1_SOURCE Signal Timing Figure GPCTR1_GATE Signal Timing in Edge-Detection Mode Figure GPCTR1_OUT Signal Timing Figure GPCTR Timing Summary Tables Table 1-1. PXI-6711/6713 J2 Pin Assignment Table 4-1. Signal Descriptions for I/O Connector Pins Table 4-2. I/O Signal Summary for the 6711/6713 Device National Instruments Corporation vii 6711/6713/6715 User Manual

7 About This Manual This manual describes the electrical and mechanical aspects of the PCI/PXI-6711/6713, DAQPad-6713, and DAQCard-6715 devices and contains information concerning their operation and programming. The 6711/6713/6715 devices include: PXI-6711with four or PXI-6713 with eight analog output (AO) channels, two counters, and eight digital input/output (DIO) channels for PXI/CompactPCI PCI-6711 with four or PCI-6713 with eight AO channels, two counters, and eight DIO channels for PCI DAQPad-6713 with eight AO channels, two counters, and eight DIO channels for IEEE-1394 (Firewire) DAQCard-6715 with eight AO channels, two counters, and eight DIO channels for PCMCIA (PC Card) Your PCI/PXI-6711/6713, DAQPad-6713, and DAQCard-6715 device is a multifunction analog output, DIO, and timing input/output (I/O) device for PCI/PXI/CompactPCI, 1394, and PCMCIA (PC Card) buses. Conventions Used in This Manual The following conventions are used in this manual. <> Angle brackets enclose the name of a key on the keyboard (for example, <option>). Angle brackets containing numbers separated by an ellipsis represent a range of values associated with a bit or signal name (for example, DIO<3..0>). The indicates that the text following it applies to only to a specific PCI/PXI/CompactPCI, DAQCard, and 1394 device. This icon denotes a note, which alerts you to important information. This icon denotes a caution, which advises you of precautions to take to avoid injury, data loss, or a system crash. italic Italic text denotes emphasis, a cross reference, or an introduction to a key concept. This font also denotes text from which you supply the appropriate word or value, as in NI-DAQ 6.X. National Instruments Corporation ix 6711/6713/6715 User Manual

8 About This Manual 671X NI-DAQ PC SCXI 671X refers to the National Instruments PCI/PXI-6711/6713, DAQPad-6713, and DAQCard-6715 devices unless otherwise noted. NI-DAQ refers to the NI-DAQ driver software for PC compatible computers unless otherwise noted. Refers to all PC AT series computers with PCI bus unless otherwise noted. SCXI stands for Signal Conditioning exentsions for Instrumentation and is a National Instruments product line designed to perform front-end signal conditioning for National instruments plug-in DAQ devices. National Instruments Documentation The 671X User Manual is one piece of the documentation set for your DAQ system. You could have any of several types of documentation depending on the hardware and software in your system. Use the documentation you have as follows: Getting Started with SCXI If you are using SCXI, this is the first manual you should read. It gives an overview of the SCXI system and contains the most commonly needed information for the modules, chassis, and software. Your SCXI hardware user manuals If you are using SCXI, read these manuals next for detailed information about signal connections and module configuration. They also explain in greater detail how the module works and contain application hints. Your DAQ hardware documentation This documentation has detailed information about the DAQ hardware that plugs into or is connected to your computer. Use this documentation for hardware installation and configuration instructions, specification information about your DAQ hardware, and application hints. Software documentation You may have both application software and NI-DAQ software documentation. National Instruments application software includes ComponentWorks, LabVIEW, LabWindows/CVI, and VirtualBench. After you set up your hardware system, use either your application software documentation or the NI-DAQ documentation to help you write your application. If you have a large, complicated system, it is worthwhile to look through the software documentation before you configure your hardware. 6711/6713/6715 User Manual x

9 About This Manual Related Documentation Accessory installation guides or manuals If you are using accessory products, read the terminal block and cable assembly installation guides. They explain how to physically connect the relevant pieces of the system. Consult these guides when you are making your connections. SCXI chassis manuals If you are using SCXI, read these manuals for maintenance information on the chassis and installation instructions. The following documents contain information you may find helpful: DAQ-STC Technical Reference Manual National Instruments Application Note 025, Field Wiring and Noise Considerations for Analog Signals PCI Local Bus Specification Revision 2.0 IEEE specification National Instruments Corporation xi 6711/6713/6715 User Manual

10 Introduction 1 About the 671X Devices This chapter describes your 671X device, lists what you need to get started, describes the optional software and optional equipment, and explains how to unpack your 671X device. Thank you for buying a National Instruments 671X device. Your 671X device is a completely Plug and Play, analog output, digital, and timing I/O device for PXI/PCI/CompactPCI, 1394, or PCMCIA (PC Card) bus. The 671X device features a 12-bit digital-to-analog converter (DAC) per channel with update rates up to 1 MS/s/channel for voltage outputs, eight lines of TTL-compatible digital I/O, and two 24-bit counter/timers for timing I/O. The 6711 device features four voltage output channels, while the 6713 and 6715 devices feature eight voltage output channels. Because the 671X device has no DIP switches, jumpers, or potentiometers, it is easily software-configured and calibrated. The 6711/6713 device is a completely switchless and jumperless data acquisition (DAQ) device for the PXI/PCI/CompactPCI or 1394 bus. This feature is made possible by the National Instruments MITE bus interface chip that connects the device to the PCI I/O bus. The MITE implements the PCI Local Bus Specification so that the interrupts and base memory addresses are all software configured. The 6715 device is a completely switchless and jumperless data acquisition (DAQ) device for the PCMCIA (PC Card) bus and is Plug and Play software configurable. The 671X device uses the National Instruments DAQ-STC system timing controller for time-related functions. The DAQ-STC consists of three timing groups that control analog input, analog output, and general-purpose counter/timer functions. These groups include a total of seven 24-bit and three 16-bit counters and a maximum timing resolution of 50 ns. The analog input section of the DAQ-STC is unused by the 671X. National Instruments Corporation /6713/6715 User Manual

11 Chapter 1 Introduction PCI/PXI/Compact PCI-6711/6713 only Often with other DAQ devices, you cannot easily synchronize several measurement functions to a common trigger or timing event. The PXI/CompactPCI-6711/6713 device has the Real-Time System Integration (RTSI) bus to solve this problem. The RTSI bus consists of our RTSI bus interface and a ribbon cable to route timing and trigger signals between several functions on as many as five DAQ devices in your computer. If you are using the PXI-6711/6713 in a PXI chassis, RTSI lines, known as the PXI trigger bus, are part of the backplane, therefore you do not need the RTSI cable for system triggering and timing on the PXI. DAQCard-6715 only Using PXI with CompactPCI The DAQCard-6715 provides access to timing and triggering signals through the I/O connector for synchronization to other DAQ devices or timing signals. Detailed specifications of the 671X device are in Appendix A, Specifications. PXI/CompactPCI-6711/6713 Only Using PXI-compatible products with standard CompactPCI products is an important feature provided by the PXI Specification, revision 1.0. If you use a PXI-compatible plug-in device in a standard CompactPCI chassis, you cannot use PXI-specific functions, but you can still use the basic plug-in device functions. For example, the PXI trigger bus on your 6711/6713 device is available in a PXI chassis but not in a CompactPCI chassis. The CompactPCI specification permits vendors to develop sub-buses that coexist with the basic PCI interface on the CompactPCI bus. Compatible operation is not guaranteed between CompactPCI devices with different sub-buses nor between CompactPCI devices with sub-buses and PXI. The standard implementation for CompactPCI does not include these sub-buses. Your 6711/6713 device will work in any standard CompactPCI chassis adhering to the PICMG CompactPCI 2.0 R2.1 document. PXI-specific features, RTSI bus trigger, RTSI Clock, and Serial Communication, are implemented on the J2 connector of the CompactPCI bus. Table 1-1 lists the J2 pins used by your PXI/CompactPCI-6711/6713, 6711/6713/6715 User Manual 1-2

12 Chapter 1 Introduction which is compatible with any CompactPCI chassis with a sub-bus that does not drive these lines. Even if the sub-bus is capable of driving these lines, the 6711/6713 is still compatible as long as those pins on the sub-bus are disabled by default and are never enabled. Damage can result if these lines are driven by the sub-bus. Table 1-1. PXI-6711/6713 J2 Pin Assignment 6711/6713 Signal PXI Pin Name PXI J2 Pin Number RTSI Trigger <0..5> PXI Trigger <0..5> B16, A16, A17, A18, B18, C18 RTSI Trigger 6 PXI Star Trigger D17 RTSI Clock PXI Trigger (7) E16 Serial Communication LBR (6, 7, 8, 9, 10, 11, 12) EI5, A3, C3, D3, E3, A2, B2 What You Need to Get Started To set up and use the 671X device, you will need the following: Either the 6711, 6713, or 6715 device 6711/6713/6715 User Manual NI-DAQ driver for PC compatibles version 6.5 or higher (6.7 or higher for DAQCard-6715) One of the following software packages and documentation: LabVIEW for Windows LabWindows/CVI for Windows ComponentWorks VirtualBench C language compiler Your computer SH68-68 EP cable (PCI/PXI/CompactPCI-6711/13 and DAQPad-6713) National Instruments Corporation /6713/6715 User Manual

13 Chapter 1 Introduction SHC68-68EP cable (DAQCard-6715) One of the following: BNC 2110 signal connector block SCB-68 shielded terminal block CB-68LP terminal block Unpacking The 671X device is shipped in an antistatic package to prevent electrostatic damage to the device. Electrostatic discharge can damage several components on the device. To avoid such damage in handling the device, take the following precautions: Ground yourself using a grounding strap or by holding a grounded object. Touch the antistatic package to a metal part of your computer chassis before removing the device from the package. Remove the device from the package and inspect the device for loose components or any other sign of damage. Notify National Instruments if the device appears damaged in any way. Do not install a damaged device into your computer. Never touch the exposed pins of connectors. Software Programming Choices You have several options to choose from when programming your National Instruments DAQ and SCXI hardware. You can use National Instruments application software, NI-DAQ, or register-level programming. National Instruments Application Software LabVIEW features interactive graphics, a state-of-the-art user interface, and a powerful graphical programming language. The LabVIEW Data Acquisition VI Library, a series of VIs for using LabVIEW with National Instruments DAQ hardware, is included with LabVIEW. The LabVIEW Data Acquisition VI Library is functionally equivalent to NI-DAQ software. 6711/6713/6715 User Manual 1-4

14 Chapter 1 Introduction NI-DAQ Driver Software LabWindows/CVI features interactive graphics, state-of-the-art user interface, and uses the ANSI standard C programming language. The LabWindows/CVI Data Acquisition Library, a series of functions for using LabWindows/CVI with National Instruments DAQ hardware, is included with the NI-DAQ software kit. The LabWindows/CVI Data Acquisition Library is functionally equivalent to the NI-DAQ software. ComponentWorks contains tools for data acquisition and instrument control built on NI-DAQ driver software. ComponentWorks provides a higher-level programming interface for building virtual instruments through standard OLE controls and DLLs. With ComponentWorks, you can use all of the configuration tools, resource management utilities, and interactive control utilities included with NI-DAQ. VirtualBench features virtual instruments that combine DAQ products, software, and your computer to create a stand-alone instrument with the added benefit of the processing, display, and storage capabilities of your computer. VirtualBench instruments load and save waveform data to disk in the same forms that used in popular spreadsheet programs and word processors. Using ComponentWorks, LabVIEW, LabWindows/CVI, or VirtualBench software will greatly reduce the development time for your data acquisition and control application. The NI-DAQ driver software is included at no charge with all National Instruments DAQ hardware. NI-DAQ is not packaged with SCXI or accessory products, except for the SCXI NI-DAQ has an extensive library of functions that you can call from your application programming environment. These functions include routines for analog input (A/D conversion), buffered data acquisition (high-speed A/D conversion), analog output (D/A conversion), waveform generation (timed D/A conversion), digital I/O, counter/timer operations, SCXI, RTSI, self-calibration, messaging, and acquiring data to extended memory. NI-DAQ has both high-level DAQ I/O functions for maximum ease of use and low-level DAQ I/O functions for maximum flexibility and performance. Examples of high-level functions are streaming data to disk or acquiring a certain number of data points. An example of a low-level function is writing directly to registers on the DAQ device. NI-DAQ does not sacrifice the performance of National Instruments DAQ devices because it lets multiple devices operate at their peak. National Instruments Corporation /6713/6715 User Manual

15 Chapter 1 Introduction NI-DAQ also internally addresses many of the complex issues between the computer and the DAQ hardware such as programming interrupts and DMA controllers. NI-DAQ maintains a consistent software interface among its different versions so that you can change platforms with minimal modifications to your code. Whether you are using conventional programming languages or National Instruments application software, your application uses the NI-DAQ driver software, as illustrated in Figure 1-1. Conventional Programming Environment ComponentWorks, LabVIEW, LabWindows/CVI, or VirtualBench NI-DAQ Driver Software DAQ or SCXI Hardware Personal Computer or Workstation Register-Level Programming Figure 1-1. The Relationship Between the Programming Environment, NI-DAQ, and Your Hardware The final option for programming any National Instruments DAQ hardware is to write register-level software. Writing register-level programming software can be very time-consuming and inefficient, and is not recommended for most users. Even if you are an experienced register-level programmer, using NI-DAQ or application software to program your National Instruments DAQ hardware is easier than, and as flexible as, register-level programming, and can save weeks of development time. 6711/6713/6715 User Manual 1-6

16 Chapter 1 Introduction Optional Equipment Custom Cabling National Instruments offers a variety of products to use with the 671X device, including cables, connector blocks, and other accessories, as follows: Cables and cable assemblies Connector blocks, shielded and unshielded 50- and 68-pin screw terminals RTSI bus cables Low channel-count digital signal conditioning modules, devices, and accessories For more specific information about these products, refer to your National Instruments catalogue or call the office nearest you. National Instruments offers cables and accessories for you to prototype your application or to use if you frequently change device interconnections. If you want to develop your own cable, however, the following guidelines can be useful: Route the analog lines separately from the digital lines. When using a cable shield, use separate shields for the analog and digital halves of the cable. Failure to do so results in noise coupling into the analog signals from transient digital signals. Mating connectors and a backshell kit for making custom 68-pin cables are available from National Instruments. The following list gives recommended connectors that mate to the I/O connector on the 6711/6713 device: Honda 68-position, solder cup, female connector Honda backshell The following list gives recommended connectors that mate to the I/O connector on the 6715 device: Amp 68-position, VHDCI Amp backshell National Instruments Corporation /6713/6715 User Manual

17 Installation and Configuration 2 Software Installation Hardware Installation This chapter explains how to install and configure your 671X device. Install your software before you install the 671X device. Refer to the appropriate release notes indicated below for specific instructions on the software installation sequence. 1. Install your application software If you are using LabVIEW, LabWindows/CVI, or other National Instruments application software packages, refer to the appropriate release notes. 2. Install the NI-DAQ driver software Refer to your NI-DAQ release notes and follow the instructions given there for your operating system and application software package. You can now install your hardware. You can install the PCI/PXI-6711/6713 device in any available PXI/PCI expansion slot in your computer. You can connect the DAQPad-6713 to any available 1394 port on your PC or another 1394 device. You can install the DAQCard-6715 in any available 5 V PC Card slot in your computer. However, to achieve best noise performance, leave as much room as possible between the 671X device and other devices and hardware. The following are general installation instructions, but consult your computer user manual or technical reference manual for specific instructions and warnings. PXI-6711/6713 You can install the PXI-6711/6713 in any available PXI slot in your PXI or CompactPCI chassis. National Instruments Corporation /6713/6715 User Manual

18 Chapter 2 Installation and Configuration Note The PXI-6711/6713 has connections to several reserved lines on the CompactPCI J2 connector. Before installing the PXI-6711/6713 in a CompactPCI system that uses J2 connector lines for a purpose other than PXI, see Using PXI with CompactPCI in Chapter 1, Introduction. 1. Turn off and unplug your PXI or CompactPCI chassis. 2. Choose an unused PXI or CompactPCI peripheral slot. For maximum performance, install the PXI-6711/6713 in a slot that supports bus arbitration or bus-master cards. The PXI-6711/6713 contains onboard bus-master DMA logic that can operate only in such a slot. If you choose a slot that does not support bus masters, you will have to disable the onboard DMA controller using your software. PXI-compliant chassis must have bus arbitration for all slots. 3. Remove the filter panel for the peripheral slot that you have chosen. 4. Touch a metal part on the chassis to discharge any static electricity that might be on your clothes or body. 5. Insert the PXI-6711/6713 device in the 5 V slot. Use the injector/ejector handle to fully inject the device into place. 6. Screw the front panel of the PXI-6711/6713 to the front panel mounting rails of the PXI or CompactPCI chassis. 7. Visually verify the installation. 8. Plug in and turn on the PXI or CompactPCI chassis. The PXI-6711/6713 is now installed. PCI-6711/ Turn off and unplug your computer. 2. Remove the top cover or access port to the I/O channel. 3. Remove the expansion slot cover on the back panel of the computer. 4. Insert the 6711/6713 device into a 5 V PCI slot. Gently rock the device to ease it into place. It can be a tight fit, but do not force the device into place. 5. If required, screw the mounting bracket of the 6711/6713 device to the back panel rail of the computer. 6. Replace the cover. 7. Plug in and turn on your computer. 6711/6713/6715 User Manual 2-2

19 Chapter 2 Installation and Configuration The PCI-6711/6713 device is installed. You are now ready to configure your software. Refer to your software documentation for configuration instructions. DAQPad Connect the 1394 cable from the computer or any other 1394 device to the port on your DAQPad device. 2. Connect the power cord to the wall outlet and the DAQPad device. 3. Flip the rocker switch to turn on the power for the DAQPad Your computer should detect your DAQPad device immediately and when the computer recognizes your DAQPad device, the COM LED on the front panel will blink once. The power LED should be on. 4. Configure your DAQPad device and any accessories with the Measurement & Automation Explorer. DAQCard Insert the DAQCard and attach the I/O cable. The DAQCard has two connectors a 68-pin PCMCIA bus connector on one end and a 68-pin I/O connector on the other end. Insert the PCMCIA bus connector into any available Type II PCMCIA slot until the connector is seated firmly. The DAQCard and I/O cable are both keyed so that you can attach the cable only one way. Note Be careful not to put strain on the I/O cable when inserting it into and removing it from the DAQCard. Always grasp the cable by the connector you are plugging or unplugging. Never pull directly on the I/O cable to unplug it from the DAQCard. You can connect your DAQCard to 68- and 50-pin accessories. You can use either a 68-pin female cable to plug into the PSHR68-68M with your DAQCard, or a 50-pin male cable and the PSHR68-68M and SH6850 with your DAQCard. 2. Tighten the jackscrews to secure the cable to the DAQCard. 3. Configure your DAQPad device and any accessories with Measurement & Automation Explorer. National Instruments Corporation /6713/6715 User Manual

20 Chapter 2 Installation and Configuration Device Configuration Due to the National Instruments standard architecture for data acquisition, the PCI bus specification, the IEEE specification, the PCMCIA (PC Card) specification, and the 671X device is completely software configurable. There are two types of configuration on the 671X device bus-related and data acquisition-related configuration. The PCI/PXI-6711/6713 device is fully compatible with the industry-standard PCI Local Bus Specification Revision 2.0. This specification allows the PCI system to automatically perform all bus-related configurations and requires no user interaction. Bus-related configuration includes setting the device base memory address and interrupt channel. Data acquisition-related configuration includes such settings as analog output range, reference selection, and others. You can modify these settings using NI-DAQ C language API, or application level software, such as ComponentWorks, LabVIEW, LabWindows/CVI, and VirtualBench. 6711/6713/6715 User Manual 2-4

21 Hardware Overview 3 This chapter presents an overview of the hardware functions on your PCI/PXI-6711/6713 and DAQPad-6713 device. Figure 3-1 shows a block diagram of the 6711/6713 device. Figure 3-2 shows a block diagram of the 6715 device. National Instruments Corporation /6713/6715 User Manual

22 Chapter 3 Hardware Overview CH0 Amp CH0 12-Bit DAC 12 CH0 Latch DAQPad-6713 only I/O Connector 8 CH1 Amp CH2 Amp CH3 Amp CH4 Amp CH5 Amp CH6 Amp CH7 Amp Calibration Mux CH1 12-Bit DAC CH2 12-Bit DAC CH3 12-Bit DAC CH4 12-Bit DAC CH5 12-Bit DAC CH6 12-Bit DAC CH7 12-Bit DAC 24 Calibration DACs Calibration ADC PFI / Trigger CH1 Latch CH2 Latch CH3 Latch CH4 Latch CH5 Latch CH6 Latch CH7 Latch Data Data AO Control DAC FIFO Data Trigger EEPROM EEPROM Control AO Control Calibration Control Address Register Decode FPGA 400 Mbps 1394 PHY NI Firephli Generic Bus PCI Interface MITE Data Data DMA/ IRQ DAQ-STC Bus Interface Analog Output Timing/Control Control PCI Bus Interface Bus Interface Control Address/Data Control Address/Data IRQ DMA PCI/PXI IEEE 1394 Timing Counter/ Timing I/O DAQ - STC DMA/IRQ Digital I/O (8) Digital I/O Analog Input Timing/Control RTSI Bus Interface +5 V Note: CH4 through CH7 on 6713 only 1A RTSI Bus Figure /6713 Block Diagram 6711/6713/6715 User Manual 3-2

23 Chapter 3 Hardware Overview CH0 Amp CH0 12-Bit DAC CH1 Amp CH1 12-Bit DAC CH2 Amp CH2 12-Bit DAC CH3 Amp CH3 12-Bit DAC CONFIG EEPROM CIS EEPROM I/O Connector CH4 Amp CH5 Amp CH6 Amp CH7 Amp CH4 12-Bit DAC CH5 12-Bit DAC CH6 12-Bit DAC CH7 12-Bit DAC Control/Data Control DAC Control AO Control FIFO Data In Data DAC FIFO FPGA Data/Control Bus Interface Bus Interface DAQ-STC Calibration Interface Control Address/Control Data EEPROM Digital Thermometer PC-Card (PCMCIA) Bus 8 Calibration Mux 24 Calibration DACs Calibration ADC Analog Output Timing/Control Bus Interface Analog Input Timing/Control PFI / Trigger Trigger DAQ-STC IRQ Timing Counter/ Timing I/O Digital I/O RTSI Bus Interface Digital I/O (8) +5 V 0.75 A Figure Block Diagram National Instruments Corporation /6713/6715 User Manual

24 Chapter 3 Hardware Overview Analog Output Analog Output Reference Selection Analog Output Reglitch Selection Digital I/O The 6711 has four channels and the 6713/6715 has eight channels of voltage output at the I/O connector. The reference for the analog output circuitry is software selectable per channel. The reference can be either internal or external, whereas the range is always bipolar. This means that you can output signals up to ±10 V with internal reference selected or ± EXTREF voltage with external reference selected. You can connect each D/A converter (DAC) to the internal reference of 10 V or to the external reference signal connected to the external reference (EXTREF) pin on the I/O connector. This signal applied to EXTREF should be within ±11 V of AOGND. You can configure each channel to use either internal or external reference. The default reference value selection is internal reference. In normal operation, a DAC output will glitch whenever it is updated with a new value. The glitch energy differs from code to code and appears as distortion in the frequency spectrum. Each analog output channel contains a reglitch circuit that generates uniform glitch energy at every code rather than large glitches at the major code transitions. This uniform glitch energy appears as a multiple of the update rate in the frequency spectrum. Notice that this reglitch circuit does not eliminate the glitches; it only makes them more uniform in size. By default, reglitching is disabled for all channels, however you can use NI-DAQ to independently enable reglitching for each channel. The 671X device contains eight lines of digital I/O for general-purpose use. You can individually software-configure each line for either input or output. At system startup and reset, the digital I/O ports are all high impedance. The hardware up/down control for general-purpose counters 0 and 1 are connected onboard to DIO6 and DIO7, respectively. Thus, you can use DIO6 and DIO7 to control the general-purpose counters. The up/down control signals are input only and do not affect the operation of the DIO lines. 6711/6713/6715 User Manual 3-4

25 Chapter 3 Hardware Overview Timing Signal Routing The DAQ-STC provides a very flexible interface for connecting timing signals to other devices or external circuitry. The 6711/6713 device uses the RTSI bus to interconnect timing signals between devices (PCI/PXI/CompactPCI) and the Programmable Function Input (PFI) pins on the I/O connector to connect the device to external circuitry. These connections are designed to enable the 6711/6713 device to both control and be controlled by other devices and circuits. There are a total of 13 timing signals internal to the DAQ-STC that you can control by an external source. You can also control these timing signals control by signals generated internally to the DAQ-STC, and these selections are fully software configurable. For example, the signal routing multiplexer for controlling the UPDATE* signal is shown in Figure 3-3. RTSI Trigger <0..6> PFI<0..9> UPDATE* Update Interval Counter TC GPCTR0_OUT Figure 3-3. UPDATE* Signal Routing National Instruments Corporation /6713/6715 User Manual

26 Chapter 3 Hardware Overview Programmable Function Inputs Figure 3-3 shows that you can generate UPDATE* from a number of sources, including the external signals RTSI<0..6> and PFI<0..9> and the internal signals Sample Interval Counter TC and GPCTR0_OUT. Many of these timing signals are also available as outputs on the RTSI pins, as indicated in the RTSI Triggers section later in this chapter, and on the PFI pins, as indicated in Chapter 4, Signal Connections. 6711/6713 Device and RTSI Clocks The 10 PFIs are connected to the signal routing multiplexer for each timing signal, and software can select one of the PFIs as the external source for a given timing signal. It is important to note that you can use any of the PFIs as an input by any of the timing signals and that multiple timing signals can use the same PFI simultaneously. This flexible routing scheme reduces the need to change physical connections to the I/O connector for different applications. You can also individually enable each of the PFI pins to output a specific internal timing signal. For example, if you need the UPDATE* signal as an output on the I/O connector, software can turn on the output driver for the PFI5/UPDATE* pin. 6711/6713 Many functions performed by the 6711/6713 device require a frequency timebase to generate the necessary timing signals for controlling DAC updates or general-purpose signals at the I/O connector. The 6711/6713 device can use either its internal 20 MHz timebase or a timebase received over the RTSI bus. In addition, if you configure the device to use the internal timebase, you can also program the device to drive its internal timebase over the RTSI bus to another device that is programmed to receive this timebase signal. This clock source, whether local or from the RTSI bus, is used directly by the device as the primary frequency source. The default configuration at startup is to use the internal timebase without driving the RTSI bus timebase signal. This timebase is software selectable. 6711/6713/6715 User Manual 3-6

27 Chapter 3 Hardware Overview RTSI Triggers The seven RTSI trigger lines on the RTSI bus provide a very flexible interconnection scheme for the 6711/6713 device sharing the RTSI bus. These bidirectional lines can drive any of five timing signals onto the RTSI bus and can receive any of these timing signals. This signal connection scheme is shown in Figure 3-4. DAQ-STC UPDATE* WFTRIG RTSI Bus Connector Trigger 7 RTSI Switch GPCTR0_SOURCE GPCTR0_GATE GPCTR0_OUT UISOURCE GPCTR1_SOURCE Clock switch GPCTR1_GATE RTSI_OSC (20 MHz) Figure 3-4. RTSI Bus Signal Connection Refer to the Timing Connections section of Chapter 4, Signal Connections, for a description of the signals. National Instruments Corporation /6713/6715 User Manual

28 Signal Connections 4 This chapter describes how to make input and output signal connections to your 671X device through the device I/O connector. PCI/PXI-6711/6713, DAQCard-6715 The I/O connector for the 6711/6713 device has 68 pins that you can connect to 68-pin accessories with the SH68-68-EP or similar 68-pin shielded cable. DAQPad-6713 The DAQPad-6713 allows connection to all analog and some digital signals through BNC connectors. You can access the remaining digital signals using the removable screw terminal block on the front panel. I/O Connector Figure 4-1 shows the pin assignments for the 68-pin I/O connector on the 671X device. Figure 4-2 shows the pin assignments for the 50-pin I/O cable connector when used with the 671X device. A signal description follows the connector pinouts. National Instruments Corporation /6713/6715 User Manual

29 Chapter 4 Signal Connections AOGND NC AOGND AOGND DAC6OUT 1 AOGND DAC5OUT 1 AOGND AOGND DAC3OUT AOGND AOGND DAC0OUT DAC1OUT EXTREF DIO4 DGND DIO1 DIO6 DGND +5 V DGND DGND PFI0 PFI1 DGND +5 V DGND PFI5/UPDATE* PFI6/WFTRIG DGND PFI9/GPCTR0_GATE GPCTR0_OUT FREQ_OUT NC AOGND AOGND DAC7OUT 1 AOGND AOGND NC AOGND DAC4OUT 1 AOGND AOGND DAC2OUT AOGND AOGND AOGND DGND DIO0 DIO5 DGND DIO2 DIO7 DIO3 NC EXTSTROBE* DGND PFI2 PFI3/GPCTR1_SOURCE PFI4/GPCTR1_GATE GPCTR1_OUT DGND PFI7 PFI8/GPCTR0_SOURCE DGND DGND 1 No Connect on PCI/PXI 6711 Figure Pin I/O Connector Pin Assignment for the 671X Device 6711/6713/6715 User Manual 4-2

30 Chapter 4 Signal Connections AOGND NC NC DAC7OUT 1 DAC6OUT 1 DAC5OUT 1 DAC4OUT 1 DAC3OUT DAC2OUT NC DAC1OUT AOGND DIO0 DIO1 DIO2 DIO3 DGND +5 V EXTSTROBE* PFI1/TRIG2 PFI3/GPCTR1_SOURCE GPCTR1_OUT PFI6/WFTRIG PFI8/GPCTR0_SOURCE GPCTR0_OUT AOGND AOGND AOGND AOGND AOGND AOGND AOGND AOGND AOGND DAC0OUT EXTREF DGND DIO4 DIO5 DIO6 DIO7 +5 V SCANCLK PFI0/TRIG1 PFI2/CONVERT* PFI4/GPCTR1_GATE PFI5/UPDATE* PFI7/STARTSCAN PFI9/GPCTR0_GATE FREQ_OUT 1 No Connect on PCI/PXI-6711 Figure Pin I/O Connector Pin Assignment for the 671X Device When Using the SH68-50 Cable National Instruments Corporation /6713/6715 User Manual

31 Chapter 4 Signal Connections Caution Connections that exceed any of the maximum ratings of input or output signals on the 671X device can damage the 671X device and the computer. Maximum input ratings for each signal are given in the Protection column of Table 4-2. National Instruments is not liable for any damages resulting from such signal connections. I/O Connector Signal Descriptions Table 4-1. Signal Descriptions for I/O Connector Pins Signal Name Reference Direction Description AOGND Analog Output Ground The analog output voltages are referenced to this node. DAC<0..7>OUT AOGND Output Analog Output Channels 0 through 7 These pins supply the voltage output of the respective channel. DGND Digital Ground This pin supplies the reference for the digital signals at the I/O connector as well as the +5 VDC supply. DIO<0..7> DGND Input or Output Digital I/O signals DIO6 and 7 can control the up/down signal of general-purpose counters 0 and 1, respectively. +5 V DGND Output +5 VDC Source These pins are fused for up to 1 A (0.75 A, DAQCard-6715) 1 of +5 V supply. The fuse is self-resetting. EXTREF AOGND Input External Reference This is the external reference input for the analog output circuitry. EXTSTROBE* DGND Output External Strobe This output is used for controlling SCXI devices. PFI0 DGND Input PFI0 As an input, this is one of the Programmable Function Inputs (PFIs). PFI signals are explained in the Timing Connections section later in this chapter. PFI0 cannot be an output. PFI1 DGND Input PFI1 As an input, this is one of the PFIs. PFI1 cannot be an output. PFI2 DGND Input PFI2 As an input, this is one of the PFIs. PFI2 cannot be an output. PFI3/GPCTR1_SOURCE DGND Input Output PFI3/Counter 1 Source As an input, this is one of the PFIs. As an output, this is the GPCTR1_SOURCE signal. This signal reflects the actual source connected to the general-purpose counter /6713/6715 User Manual 4-4

32 Chapter 4 Signal Connections Table 4-1. Signal Descriptions for I/O Connector Pins (Continued) Signal Name Reference Direction Description PFI4/GPCTR1_GATE DGND Input Output PFI4/Counter 1 Gate As an input, this is one of the PFIs. As an output, this is the GPCTR1_GATE signal. This signal reflects the actual gate signal connected to the general-purpose counter 1. GPCTR1_OUT DGND Output Counter 1 Output This output is from the general-purpose counter 1 output. PFI5/UPDATE* DGND Input Output PFI6/WFTRIG DGND Input Output PFI5/Update As an input, this is one of the PFIs. As an output, this is the UPDATE* signal. A high-to-low edge on UPDATE* indicates that the analog output waveform generation group is being updated. PFI6/Waveform Trigger As an input, this is one of the PFIs. As an output, this is the WFTRIG signal. In timed analog output sequences, a low-to-high transition indicates the initiation of the waveform generation. PFI7 DGND Input PFI7 As an input, this is one of the PFIs. PFI7 cannot be an output. PFI8/GPCTR0_SOURCE DGND Input Output PFI9/GPCTR0_GATE DGND Input Output PFI8/Counter 0 Source As an input, this is one of the PFIs. As an output, this is the GPCTR0_SOURCE signal. This signal reflects the actual source connected to the general-purpose counter 0. PFI9/Counter 0 Gate As an input, this is one of the PFIs. As an output, this is the GPCTR0_GATE signal. This signal reflects the actual gate signal connected to the general-purpose counter 0. GPCTR0_OUT DGND Output Counter 0 Output This output is from the general-purpose counter 0 output. FREQ_OUT DGND Output Frequency Output This output is from the frequency generator output. 1 The +5 V line on the connector of the DAQCard-6715 is fused at 0.75 A, however, the actual current available can be limited below this value by the host computer. National Instruments recommends limiting current from this line to 250 ma. National Instruments Corporation /6713/6715 User Manual

33 Chapter 4 Signal Connections Table 4-2 shows the I/O signal summary for the 6711/6713 devices. Table 4-2. I/O Signal Summary for the 6711/6713 Device Signal Name Signal Type and Direction Impedance Input/ Output Protection (Volts) On/Off Source (ma at V) Sink (ma at V) Rise Time (ns)/ Slew Rate Bias DAC<0..7>OUT AO 0.1 Ω Short-circuit to ground 5 at 10 (total not to exceed 20 ma total for all 8 outputs combined, DAQCard -6715) 5 at V/ µs AOGND AO DGND DIO VCC DO 0.1 Ω Short-circuit to ground 1 A (0.75 A, DAQCard -6715) 1 DIO<0..7> DIO V cc at (Vcc -0.4) 24 at kω pu EXTSTROBE* DO 3.5 at (Vcc -0.4) 5 at kω pu EXTREF AI 10 kω 25/15 PFI0 DI Vcc at (V cc -0.4) PFI1 DI Vcc at (V cc -0.4) PFI2 DI Vcc at (V cc -0.4) PFI3/GPCTR1_SOURCE DIO Vcc at (V cc -0.4) PFI4/GPCTR1_GATE DIO Vcc at (V cc -0.4) GPCTR1_OUT DO 3.5 at (V cc -0.4) 5 at kω pd 5 at kω pu 5 at kω pu 5 at kω pu 5 at kω pu 5 at kω pu 6711/6713/6715 User Manual 4-6

34 Chapter 4 Signal Connections Table 4-2. I/O Signal Summary for the 6711/6713 Device (Continued) Signal Name Signal Type and Direction Impedance Input/ Output Protection (Volts) On/Off Source (ma at V) Sink (ma at V) Rise Time (ns)/ Slew Rate Bias PFI5/UPDATE* DIO Vcc at (Vcc -0.4) PFI6/WFTRIG DIO Vcc at (Vcc -0.4) PFI7 DI Vcc at (Vcc -0.4) PFI8/GPCTR0_SOURCE DIO Vcc at (Vcc -0.4) PFI9/GPCTR0_GATE DIO Vcc at (Vcc -0.4) GPCTR0_OUT DO 3.5 at (Vcc -0.4) FREQ_OUT DO 3.5 at (Vcc-0.4) 5 at kω pu 5 at kω pu 5 at kω pu 5 at kω pu 5 at kω pu 5 at kω pu 5 at kω pu 1 The +5 V line on the connector of the DAQCard-6715 is fused at 0.75 A, however, the actual current available can be limited below this value by the host computer. National Instruments recommends limiting current from this line to 250 ma. AI = Analog Input, DIO = Digital Input/Output, pu = pull-up, AO = Analog Output, DO = Digital Output The tolerance on the 50 kω pull-up and pull-down resistors is very large. Actual value may range between 17 and 100 kω. Analog Output Signal Connections The analog output signals are DAC<0..7>OUT, AOGND, and EXTREF. DAC0OUT is the voltage output signal for analog output channel 0. EXTREF is the external reference input for all analog output channels. You can use this input to reduce the voltage swing on the DAC outputs while preserving the dynamic range. For example, with internal reference the minimum change (LSB) on a voltage output is: 20 V = 4.88 mv 4096 National Instruments Corporation /6713/6715 User Manual