Subscribe to Our Youtube Channel
Related Manuals for National Instruments 700
Summary of Contents for National Instruments 700
-
Page 1: User Manual
™ DAQCard -700 User Manual Multifunction I/O Board for the PCMCIA Bus January 1996 Edition Part Number 320676C-01 © Copyright 1994, 1996 National Instruments Corporation. All Rights Reserved. - Page 2 National Instruments Corporate Headquarters 6504 Bridge Point Parkway Austin, TX 78730-5039 (512) 794-0100 Technical support fax: (800) 328-2203 (512) 794-5678 Branch Offices: Australia 03 9 879 9422, Austria 0662 45 79 90 0, Belgium 02 757 00 20, Canada (Ontario) 519 622 9310, Canada (Québec) 514 694 8521, Denmark 45 76 26 00, Finland 90 527 2321, France 1 48 14 24 24,...
-
Page 3: Limited Warranty
Limited Warranty The DAQCard-700 is 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. - Page 4 Any use or application of National Instruments products for or involving medical or clinical treatment must be performed by properly trained and qualified medical personnel, and all traditional medical safeguards, equipment, and procedures that are appropriate in the particular situation to prevent serious injury or death should always continue to be used when National Instruments products are being used.
-
Page 5: Table Of Contents
Related Documentation ... xi Customer Communication ... xi Chapter 1 Introduction ... 1-1 About the DAQCard-700 ... 1-1 What You Need to Get Started ... 1-2 Software Programming Choices ... 1-2 LabVIEW and LabWindows/CVI Application Software ... 1-2 NI-DAQ Driver Software... 1-3 Register-Level Programming ... - Page 6 Data Acquisition Rates... 4-6 Digital I/O Circuitry ... 4-7 Timing I/O Circuitry ... 4-8 Appendix A Specifications ... A-1 Appendix B Differences between the PC-LPM-16 and the DAQCard-700 Appendix C PC Card Questions and Answers Appendix D Power-Management Modes Appendix E Customer Communication Glossary ...
- Page 7 Figure 1-1. The Relationship between the Programming Environment, NI-DAQ, and Your Hardware... 1-3 Figure 2-1. A Typical Configuration for the DAQCard-700 ... 2-2 Figure 3-1. DAQCard-700 I/O Connector Pin Assignments... 3-2 Figure 3-2. DAQCard-700 Instrumentation Amplifier ... 3-6 Figure 3-3.
-
Page 8: About This Manual
Chapter 3, Signal Connections, describes the signals on the DAQCard-700 I/O connector, as well as typical cable setups. • Chapter 4, Theory of Operation, includes an overview of the DAQCard-700 and explains the operation of each functional unit making up the DAQCard-700. •... -
Page 9: Conventions Used In This Manual
National Instruments Documentation The DAQCard-700 User Manual is one piece of the documentation set for your data acquisition system. You could have any of several types of manuals, depending on the hardware and software in your system. Use the manuals you have as follows: •... -
Page 10: Related Documentation
• DAQCard-700 Register-Level Programmer Manual This manual is available from National Instruments by request. If you are using NI-DAQ, LabVIEW, or LabWindows/CVI, you should not need the register-level programmer manual. Using NI-DAQ, LabVIEW, or LabWindows/CVI is quicker and easier than and as flexible as using the low-level programming described in the register-level programmer manual. -
Page 11: Chapter 1 Introduction
In addition, the low cost of a system based on the DAQCard-700 makes it ideal for laboratory work in industrial and academic environments. The multichannel analog input is useful in signal analysis and data logging. -
Page 12: What You Need To Get Started
Introduction What You Need to Get Started To set up and use your DAQCard-700, you will need the following: DAQCard-700 One of the following I/O cables (must be purchased separately): PR50-50M ribbon cable (6 in.) PR50-50F ribbon cable (0.5, 1, or 2 m) -
Page 13: Ni-Daq Driver Software
Introduction NI-DAQ Driver Software 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-1200. NI-DAQ has an extensive library of functions that you can call from your application programming environment. -
Page 14: Register-Level Programming
Unpacking The DAQCard-700 is shipped in an antistatic vinyl envelope; when you are not using the DAQCard-700, you should store it in this envelope. Because the DAQCard-700 is enclosed in a fully shielded case, no additional electrostatic precautions are necessary. -
Page 15: Chapter 2 Installation And Configuration
Be very careful not to put strain on the I/O cable when inserting it into and removing it from the DAQCard-700. 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-700. -
Page 16: Configuration
I/O Signals Figure 2-1. A Typical Configuration for the DAQCard-700 The DAQCard-700 is now installed. You are ready to make the appropriate connections to the I/O connector cable as described in Chapter 3, Signal Connections, and to install and configure your software. -
Page 17: Analog I/O Configuration
At startup, the DAQCard-700 defaults to the following configuration: • Referenced single-ended input mode • 10 V analog input range Table 2-1 lists the available analog I/O configurations for the DAQCard-700 and shows the default settings. Parameter Analog Input Polarity Analog Input Mode The analog input circuitry is software configurable. -
Page 18: Rse Input
RSE input means that all input signals are referenced to a common ground point that is also tied to the DAQCard-700 analog input ground. The RSE configuration is useful for measuring floating signal sources. See the Types of Signal Sources section of Chapter 3 for more information. -
Page 19: Digital I/O Configuration
Chapter 2 Installation and Configuration Digital I/O Configuration The DAQCard-700 always uses one 8-bit digital output port and one 8-bit digital input port. Counter Configuration You can use the MSM82C54 counter/timers for general-purpose applications, such as pulse and square wave generation, event counting, and pulse-width, time-lapse, and frequency measurement. -
Page 20: Chapter 3 Signal Connections
Chapter 3 Signal Connections This chapter describes the signals on the DAQCard-700 I/O connector, as well as typical cable setups. I/O Connector Figure 3-1 shows the pin assignments for the DAQCard-700 I/O connector. This connector is attached to the ribbon cable that extends from the PCMCIA slot when the card is installed and the cable is connected. -
Page 21: Figure 3-1. Daqcard-700 I/O Connector Pin Assignments
Signal Connections Figure 3-1. DAQCard-700 I/O Connector Pin Assignments DAQCard-700 User Manual AIGND AIGND ACH0 ACH8 ACH1 ACH9 ACH2 ACH10 ACH3 ACH11 ACH4 ACH12 ACH5 13 14 ACH13 ACH6 15 16 ACH14 ACH7 17 18 ACH15 DGND 19 20 21 22... -
Page 22: Signal Connection Descriptions
CLK1 OUT2 GATE2 CLK2 +5 V DGND Indicates that the signal is active low. © National Instruments Corporation Direction Description — Analog Input Ground—These pins are connected to the analog input ground signal. Input Analog Input Channels 0 through 15—These channels are in single-ended mode. -
Page 23: Analog Input Signal Connections
You can use these pins for a general analog power ground tie to the DAQCard-700. Pins 3 through 18 are the ACH<15..0> signal pins. These pins are tied to the analog input channels of the DAQCard-700 through 4.7 k series resistors. These resistors limit the input current to the multiplexer. -
Page 24: Types Of Measurement Systems
Input Configurations To measure the different types of input signals, you can configure the DAQCard-700 for one of two input modes–DIFF or RSE. These two modes, differential and referenced single-ended, can be implemented by changing the configuration of the instrumentation amplifier onboard the DAQCard-700. -
Page 25: Single-Ended Mode
The amplifier output voltage is referenced to the DAQCard-700 ground. The DAQCard-700 ADC measures this output voltage when it performs A/D conversions. -
Page 26: Recommended Input Configurations
In addition, if the computer using the DAQCard-700 is not ground referenced, you can use this mode for ground-referenced signal sources. Figure 3-3 shows how to connect a signal source to a DAQCard-700 in single-ended mode. When you connect grounded signal sources to a DAQCard-700 in a ground-referenced computer, carefully observe the polarity to avoid shorting the signal source output. -
Page 27: Differential Connection Considerations (Diff Configuration)
When the DAQCard-700 is configured for DIFF input, each signal uses two of the multiplexer inputs–one for the signal and one for its reference signal. Therefore, only eight analog input channels are available when using the DIFF configuration. -
Page 28: Differential Connections For Grounded Signal Sources
With these connections, input signals can float within the common-mode limits of the input instrumentation amplifier. Differential Connections for Grounded Signal Sources Figure 3-4 shows how to connect a ground-referenced signal source to a DAQCard-700 card configured for DIFF input. Ground-... -
Page 29: Differential Connections For Floating Signal Sources
Signal Connections Differential Connections for Floating Signal Sources Figure 3-5 shows how to connect a floating signal source to an DAQCard-700 card configured for DIFF input. Configuration instructions are included in the Input Configurations section earlier in this chapter. 100 k... -
Page 30: Common-Mode Signal Rejection Considerations
If the input signal common-mode range exceeds the maximum computed above with respect to the DAQCard-700 ground, you need to limit the amount of floating that occurs between the signal ground and the DAQCard-700 ground. -
Page 31: Digital I/O Signal Connections
TTL signals and sensing external device states such as the switch in Figure 3-6. Digital output applications include sending TTL signals and driving external devices such as the LED shown in Figure 3-6. DAQCard-700 User Manual +5.5 V with respect to DGND -0.5 V with respect to DGND... -
Page 32: Power Connections
Warning: Do exceed any of the maximum ratings of input or output signal connections on the DAQCard-700. Doing so can damage the DAQCard-700 and the computer. Exceeding the maximum connections includes connecting any power signals to ground and vice versa. National Instruments is resulting from any such signal connections. -
Page 33: Timing Connections
In addition to counter 0, you can use pin 40, EXTCONV*, to externally time conversions. If you need to program this chip directly, refer to the optional DAQCard-700 Register-Level Programmer Manual for the programming sequence needed to enable this input. -
Page 34: Figure 3-8. Event-Counting Applications With External Switch Gating
The MSM82C54 counter/timer is described briefly in Chapter 4, Theory of Operation. For more detailed programming information, consult the MSM82C54 Data Sheet in the optional DAQCard-700 Register-Level Programmer Manual. To perform pulse and square wave generation, program a counter to generate a timing signal at its OUT output pin. -
Page 35: Figure 3-9. Frequency Measurement Application
GATE and CLK pins are pulled up to +5 V through a 100 k resistor. Figure 3-10 shows the timing requirements for the GATE and CLK input signals and the timing specifications for the OUT output signals of the MSM82C54. DAQCard-700 User Manual 3-16 © National Instruments Corporation... -
Page 36: Figure 3-10. General-Purpose Timing Signals
Figure 3-10. General-Purpose Timing Signals The GATE and OUT signals in Figure 3-10 are referenced to the rising edge of the CLK signal. © National Instruments Corporation -0.5 to 5.0 V with respect to DGND 2.2 V minimum 0.8 V maximum... -
Page 37: Cabling
PR-50-50F and the PR-50-50M. National Instruments also offers a cable termination accessory, the CB-50, for use with the DAQCard-700. This kit includes a terminated, 50-conductor, flat ribbon cable and a connector block. You can attach signal input and output wires to screw terminals on the connector block and therefore, to the DAQCard-700 I/O connector. -
Page 38: Chapter 4 Theory Of Operation
Chapter 4 Theory of Operation This chapter includes an overview of the DAQCard-700 and explains the operation of each functional unit making up the DAQCard-700. Functional Overview The block diagram in Figure 4-1 shows a functional overview of the DAQCard-700. -
Page 39: Pcmcia I/O Channel Interface Circuitry
PCMCIA I/O Channel Interface Circuitry The PCMCIA I/O channel interface circuitry consists of an address bus, a data bus, interrupt lines, and several control and support signals. The components making up the DAQCard-700 PCMCIA I/O channel interface circuitry are shown in Figure 4-2. -
Page 40: Analog Input And Data Acquisition Circuitry
Chapter 4 When you first insert the card, the system examines information stored in the DAQCard-700 Card Information Structure. This data is used to configure the card appropriately for the system in which it is used. When the system has assigned the card to a section of memory, it updates the PCMCIA control registers and initializes the card. -
Page 41: Analog Input Circuitry
(channels 0 and 8, 1 and 9, and so on). With the input multiplexer stage, input overvoltage protection of 30 V is available, powered on or off. The DAQCard-700 uses a 12-bit successive-approximation ADC. Software-selectable gains of 1, 0.5, and 0.25 for the input signal combined with the ADC fixed input range of 10 V yield three useful analog input signal ranges. -
Page 42: Data Acquisition Timing Circuitry
Data acquisition timing consists of signals that initiate a data acquisition operation and generate scanning clocks. Sources for these signals are supplied mainly by timers on the DAQCard-700 card. One of the three counters of the onboard MSM82C54 is reserved for this purpose. -
Page 43: Data Acquisition Rates
Signal levels outside the ranges on the channels included in the scan sequence adversely affect the input settling time. Similarly, greater settling time may be required for channels driven by high-impedance signal sources. DAQCard-700 User Manual © National Instruments Corporation... -
Page 44: Digital I/O Circuitry
Chapter 4 Digital I/O Circuitry The DAQCard-700 has 16 digital I/O lines that are TTL-compatible. Pins DIN<0..7> of the I/O connector are digital input lines, and pins DOUT<0..7> are digital output lines. These lines are monitored or driven by the Digital Input Register or the Digital Output Register, respectively. -
Page 45: Timing I/O Circuitry
Theory of Operation Timing I/O Circuitry The DAQCard-700 uses an MSM82C54 counter/timer integrated circuit for data acquisition timing and for general-purpose timing I/O functions. Three counters of the MSM82C54 are available for general use, but one of them can be used internally for data acquisition timing. -
Page 46: Figure 4-6. Counter Block Diagram
Each counter has a clock input pin, a gate input pin, and an output pin labeled CLK, GATE, and OUT, respectively. The MSM82C54 counters are numbered zero through two, and their GATE, CLK, and OUT pins are labeled GATE N, CLK N, and OUT N, where N is the counter number. © National Instruments Corporation Counter GATE Figure 4-6. -
Page 47: Appendix A Specifications
Appendix A Specifications This appendix lists the specifications of the DAQCard-700. These specifications are typical at 25 C unless otherwise noted. The operating temperature range is 0 to 70 C. Analog Input Input Characteristics Number of channels ... 16 single-ended or 8 differential software selectable Type of ADC ... -
Page 48: Bus Interface
Min source pulse duration ... 50 ns Min gate pulse duration... 50 ns Data transfers ... Programmed I/O Bus Interface Type ... slave DAQCard-700 User Manual 10 s at 2.5 V (RSE) Level Input low voltage Input high voltage Input low current... -
Page 49: Power Requirement
PC Card type ... Type II I/O connector... 50-pin male Environment Operating temperature... 0 to 70 C Storage temperature ... -55 to 150 C Relative humidity ... 5% to 90% noncondensing © National Instruments Corporation 70 mA in power-down mode DAQCard-700 User Manual Specifications... -
Page 50: Differences Between The Pc-Lpm-16 And The Daqcard-700
DAQCard-700 This appendix contains a summary of differences between the PC-LPM-16 and the DAQCard-700 that may be relevant to you if you are a current PC-LPM-16 user. For a summary of programming differences, refer to the DAQCard-700 Register-Level Programmer Manual. -
Page 51: Pc Card Questions And Answers
When a call uses the interrupt, the interrupt never occurs, and the computer locks up waiting for a response. For information about how to locate an interrupt that is free to be used, refer to question 4 in the Resources section. © National Instruments Corporation DAQCard-700 User Manual... - Page 52 Yes. If you are using NI-DAQ for PC compatibles version 4.8.0 or later, a DOS utility called DAQPOWER_EXE will switch all National Instruments PC Cards between normal mode and power-down mode. Power-up and power-down icons are also installed for Windows users to access either of these two power-management modes.
-
Page 53: Resource Conflicts
Even when this is the case, you should still exclude the memory addresses used by Card Services from use by any memory manager that may be installed. © National Instruments Corporation PC Card Questions and Answers DAQCard-700 User Manual... -
Page 54: Appendix D Power-Management Modes
NI-DAQ. Use DAQPOWER-D to power down and DAQPOWER-U to power up the DAQCard-700. This utility is also available in Windows and is installed whenever you install NI-DAQ. Typically, the analog supplies are not reduced to zero;... -
Page 55: Appendix E Customer Communication
Filling out a copy of the Technical Support Form before contacting National Instruments helps us help you better and faster. National Instruments provides comprehensive technical assistance around the world. In the U.S. and Canada, applications engineers are available Monday through Friday from 8:00 a.m. to 6:00 p.m. -
Page 56: Technical Support Form
National Instruments for technical support helps our applications engineers answer your questions more efficiently. If you are using any National Instruments hardware or software products related to this problem, include the configuration forms from their user manuals. Include additional pages if necessary. -
Page 57: Other Products
Completing this form accurately before contacting National Instruments for technical support helps our applications engineers answer your questions more efficiently. -
Page 58: Documentation Comment Form
Documentation Comment Form ___________________________________________________ National Instruments encourages you to comment on the documentation supplied with our products. This information helps us provide quality products to meet your needs. Title: DAQCard™-700 User Manual Edition Date: January 1996 Part Number: 320676C-01 Please comment on the completeness, clarity, and organization of the manual. -
Page 59: Glossary
Extended Industry Standard Architecture Engineering Software Package EXTCONV external control signal to trigger A/D conversions EXTINT external interrupt signal farads FIFO first-in-first-out GATE gate input signal © National Instruments Corporation Meaning pico- nano- micro- milli- kilo- mega- giga- Glossary-1 Value... - Page 60 PCMCIA bus (usually +5V) volts, direct current virtual instrument volts, input high volts, input low V in volts in volts, output high volts, output low DAQCard-700 User Manual Glossary-2 © National Instruments Corporation...
-
Page 61: Index
3-5 types of signal sources, 3-4 to 3-5 analog input specifications, A-1 to A-2 © National Instruments Corporation bus interface for DAQCard-700, A-2 cabling, 3-18 Card and Socket Services, C-1 CLK, OUT, and GATE signals for general-... - Page 62 National Instruments documentation, x to xi organization of manual, ix related documentation, xi DOUT<0..7> signal, 3-3 DAQCard-700 User Manual environment specifications, A-3 event-counting applications, 3-15 EXTCONV* signal data acquisition counter and timing connections, 3-14 definition, 3-3...
- Page 63 C-2 to C-3 multichannel (scanned) data acquisition, 4-5 © National Instruments Corporation NI-DAQ driver software, 1-3 operation of DAQCard-700. See also theory of operation. problems with, C-1 OUT, GATE, and CLK signals for general- purpose timing, 3-14 to 3-17...
- Page 64 3-15 technical support, E-1 theory of operation analog input circuitry block diagram, 4-4 description, 4-4 block diagram of DAQCard-700, 4-1 data acquisition timing circuitry block diagram, 4-4 data acquisition rates, 4-6 multichannel (scanned) data acquisition, 4-5 purpose, 4-5...
- Page 65 3-15 time-lapse measurement, 3-16 timing specifications, 3-17 timing I/O circuitry block diagram, 4-8 counter block diagram, 4-9 specifications, A-2 theory of operation, 4-8 to 4-9 unpacking the DAQCard-700, 1-4 © National Instruments Corporation Index-5 Index DAQCard-700 User Manual...
Need help?
Do you have a question about the 700 and is the answer not in the manual?
Questions and answers