National Instruments PCI-1200 - Manuals

Contents PCI-1200 User Manual viii © National Instruments Corporation Figure 3-16. General Purpose Timing Signals .......................................................... 3-26 Figure 3-17. Mode 1 Timing Specifications for Input Transfers............................... 3-28 Figure 3-18. Mode 1 Timi...

© National Instruments Corporation ix PCI-1200 User Manual About This Manual This manual describes the electrical and mechanical aspects of the PCI-1200 and contains information concerning its operation and programming. The PCI-1200 is a low-cost multifunction analog, digital, and timing board. The ...

About This Manual PCI-1200 User Manual x © National Instruments Corporation 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, <shift>. Angle brackets containing numbers separated by...

About This Manual © National Instruments Corporation xi PCI-1200 User Manual National Instruments Documentation The PCI-1200 User Manual is one piece of the documentation set for your DAQ system. You could have any of several types of manuals, depending on the hardware and software in your system. U...

About This Manual PCI-1200 User Manual xii © National Instruments Corporation Related Documentation The following National Instruments document contains information that you may find helpful as you read this manual: • Application Note 025, Field Wiring and Noise Considerations for Analog Signals The...

© National Instruments Corporation 1-1 PCI-1200 User Manual 1 Introduction This chapter describes the PCI-1200, lists what you need to get started, software programming choices, and optional equipment, and explains how to build custom cables and unpack the PCI-1200. About the PCI-1200 Thank you for ...

Chapter 1 Introduction PCI-1200 User Manual 1-2 © National Instruments Corporation – NI-DAQ for Macintosh – NI-DAQ for PC compatibles – VirtualBench ❑ Your computer Unpacking Your PCI-1200 is shipped in an antistatic package to prevent electrostatic damage to the board. Electrostatic discharge can d...

Chapter 1 Introduction © National Instruments Corporation 1-3 PCI-1200 User Manual LabVIEW. The LabVIEW Data Acquisition VI Library is functionally equivalent to the NI-DAQ software. LabWindows/CVI features interactive graphics, a state-of-the-art user interface, and uses the ANSI standard C program...

Chapter 1 Introduction PCI-1200 User Manual 1-4 © National Instruments Corporation minimal modifications to your code. Whether you are using conventional programming languages, LabVIEW, LabWindows/CVI, or other application software, your application uses the NI-DAQ driver software, as illustrated in...

Chapter 1 Introduction © National Instruments Corporation 1-5 PCI-1200 User Manual Optional Equipment National Instruments offers a variety of products to use with your PCI-1200 board, including cables, connector blocks, and other accessories, as follows: • Cables and cable assemblies • Connector bl...

© National Instruments Corporation 2-1 PCI-1200 User Manual 2 Installation and Configuration This chapter describes how to install and configure your PCI-1200. Software Installation If you are using NI-DAQ, or National Instruments application software, refer to the installation instructions in your ...

Chapter 2 Installation and Configuration PCI-1200 User Manual 2-2 © National Instruments Corporation Board Configuration The PCI-1200 is completely software configurable. The PCI-1200 is fully compliant with the PCI Local Bus Specification , Revision 2.0 . Therefore, all board resources are automati...

Chapter 2 Installation and Configuration © National Instruments Corporation 2-3 PCI-1200 User Manual Analog Output Polarity The PCI-1200 has two channels of analog output voltage at the I/O connector. You can configure each analog output channel for either unipolar or bipolar output. A unipolar conf...

Chapter 2 Installation and Configuration PCI-1200 User Manual 2-4 © National Instruments Corporation While reading the following paragraphs, you may find it helpful to refer to the Analog Input Signal Connections section of Chapter 3, Signal Connections , which contains diagrams showing the signal p...

Chapter 3 Signal Connections PCI-1200 User Manual 3-2 © National Instruments Corporation Figure 3-1. PCI-1200 I/O Connector Pin Assignments Signal Connection Descriptions The following table describes the connector pins on the PCI-1200 I/O connector by pin number and gives the signal name and descri...

Chapter 3 Signal Connections © National Instruments Corporation 3-3 PCI-1200 User Manual Table 3-1. Signal Descriptions for PCI-1200 I/O Connector Pins Pin Signal Name Direction Reference Description 1-8 ACH<7..0> AI AGND Analog Channel 7 through 0—Analog input channels 0 through 7. 9 AISENSE/...

Chapter 3 Signal Connections © National Instruments Corporation 3-5 PCI-1200 User Manual Analog Input Signal Connections Pins 1 through 8 are analog input signal pins for the 12-bit ADC. Pin 9, AISENSE/AIGND, is an analog common signal. You can use this pin for a general analog power ground tie to t...

Chapter 3 Signal Connections © National Instruments Corporation 3-7 PCI-1200 User Manual grounded source, you must use a nonreferenced input connection at the PCI-1200. Types of Signal Sources When configuring the input mode of the PCI-1200 and making signal connections, first determine whether the ...

Chapter 3 Signal Connections © National Instruments Corporation 3-9 PCI-1200 User Manual Differential Connection Considerations (DIFF Configuration) Differential connections are those in which each PCI-1200 analog input signal has its own reference signal or signal return path. These connections are...

Chapter 3 Signal Connections PCI-1200 User Manual 3-10 © National Instruments Corporation Differential Connections for Grounded Signal Sources Figure 3-3 shows how to connect a ground-referenced signal source to a PCI-1200 board configured for DIFF input. Configuration instructions are in the Analog...

Chapter 3 Signal Connections © National Instruments Corporation 3-11 PCI-1200 User Manual Differential Connections for Floating Signal Sources Figure 3-4 shows how to connect a floating signal source to a PCI-1200 board configured for DIFF input. Configuration instructions are in the Analog I/O Conf...

Chapter 3 Signal Connections PCI-1200 User Manual 3-12 © National Instruments Corporation resulting in uncontrollable drift and possible saturation in the amplifier. Typically, values from 10 k Ω to 100 k Ω are used. A resistor from each input to ground, as shown in Figure 3-4, provides bias current...

Chapter 3 Signal Connections PCI-1200 User Manual 3-14 © National Instruments Corporation RSE configuration, this difference in ground potentials appears as an error in the measured voltage. Figure 3-6 shows how to connect a grounded signal source to a PCI-1200 board configured in the NRSE configura...

Chapter 3 Signal Connections © National Instruments Corporation 3-15 PCI-1200 User Manual The common-mode input range for the PCI-1200 depends on the size of the differential input signal (V diff = V + in – V – in ) and the gain setting of the instrumentation amplifier. In unipolar mode, the differe...

Chapter 3 Signal Connections PCI-1200 User Manual 3-16 © National Instruments Corporation Figure 3-7 shows how to make analog output signal connections. Figure 3-7. Analog Output Signal Connections Digital I/O Signal Connections Pins 13 through 37 of the I/O connector are digital I/O signal pins. Di...

Chapter 3 Signal Connections © National Instruments Corporation 3-17 PCI-1200 User Manual Logical Inputs and Outputs • Absolute max voltage rating –0.5 to +5.5 V with respect to DGND • Digital I/O lines: – Input logic low voltage –0.3 V min 0.8 V max – Input logic high voltage 2.2 V min 5.3 V max – ...

Chapter 3 Signal Connections PCI-1200 User Manual 3-18 © National Instruments Corporation Figure 3-8. Digital output applications include sending TTL signals and driving external devices such as the LED shown in Figure 3-8. Port C Pin Connections The signals assigned to port C depend on the mode in ...

Chapter 3 Signal Connections © National Instruments Corporation 3-19 PCI-1200 User Manual timing, and the other, 82C53(B), is available for general use. Use pins 38 through 40 and pin 43 to carry external signals for DAQ timing. These signals are explained in the next section, DAQ Timing Connections...

Chapter 3 Signal Connections © National Instruments Corporation 3-23 PCI-1200 User Manual Figure 3-13. EXTUPDATE* Signal Timing for Updating DAC Output The absolute max voltage input rating for the EXTCONV*, EXTTRIG, OUTB1, and EXTUPDATE* signals is –0.5 to 5.5 V with respect to DGND. For more infor...

Chapter 3 Signal Connections © National Instruments Corporation 3-27 PCI-1200 User Manual Timing Specifications Use the handshaking lines STB* and IBF to synchronize input transfers. Use the handshaking lines OBF* and ACK* to synchronize output transfers. The following signals are used in the mode t...

Chapter 3 Signal Connections PCI-1200 User Manual 3-28 © National Instruments Corporation Mode 1 Input Timing The timing specifications for an input transfer in mode 1 are as follows: Figure 3-17. Mode 1 Timing Specifications for Input Transfers Name Description Minimum Maximum T1 STB* pulse width 5...

Chapter 3 Signal Connections © National Instruments Corporation 3-29 PCI-1200 User Manual Mode 1 Output Timing The timing specifications for an output transfer in mode 1 are as follows: Figure 3-18. Mode 1 Timing Specifications for Output Transfers Name Description Minimum Maximum T1 WRT* = 0 to INT...

Chapter 3 Signal Connections PCI-1200 User Manual 3-30 © National Instruments Corporation Mode 2 Bidirectional Timing The timing specifications for bidirectional transfers in mode 2 are as follows: Figure 3-19. Mode 2 Timing Specifications for Bidirectional Transfers Name Description Minimum Maximum...

© National Instruments Corporation 4-1 PCI-1200 User Manual 4 Theory of Operation This chapter explains the operation of each functional unit of the PCI-1200. Functional Overview The block diagram in Figure 4-1 shows a functional overview of the PCI-1200 board. Figure 4-1. PCI-1200 Block Diagram The...

Chapter 4 Theory of Operation © National Instruments Corporation 4-3 PCI-1200 User Manual The PCI-1200 generates an interrupt in the following five cases (each of these interrupts is individually enabled and cleared): • When a single A/D conversion can be read from the A/D FIFO memory. • When the A/...

Chapter 4 Theory of Operation © National Instruments Corporation 4-7 PCI-1200 User Manual Stanley P. Lipshitz, Journal of the Audio Engineering Society , Vol. 35, No. 12, Dec. 1987. The PCI-1200 uses a 12-bit successive-approximation ADC. The converter’s 12-bit resolution allows it to resolve its in...

Chapter 4 Theory of Operation PCI-1200 User Manual 4-8 © National Instruments Corporation counts the total number of samples taken during a controlled operation, or through software control in a freerun operation. Controlled Acquisition Mode The PCI-1200 uses two counters, counter A0 and counter A1,...

Chapter 4 Theory of Operation © National Instruments Corporation 4-9 PCI-1200 User Manual repeat this process every 65 ms, then you should define the operation as follows: • Start channel: ch1 (which gives a scan sequence of “ch1, ch0”) • Sample interval: 12 µ s • Scan interval: 65 ms The first chan...

Chapter 4 Theory of Operation PCI-1200 User Manual 4-10 © National Instruments Corporation DAQ Rates Maximum DAQ rates (number of samples per second) are determined by the conversion period of the ADC plus the sample-and-hold acquisition time. During multichannel scanning, the DAQ rates are further ...

Chapter 4 Theory of Operation © National Instruments Corporation 4-11 PCI-1200 User Manual The recommended DAQ rates in Table 4-2 assume that voltage levels on all the channels included in the scan sequence are within range for the given gain and are driven by low-impedance sources. Analog Output Th...

Chapter 4 Theory of Operation PCI-1200 User Manual 4-12 © National Instruments Corporation voltage increment corresponding to an LSB change in the digital code word. For both outputs: DAC Timing There are two modes in which you can update the DAC voltages. In immediate update mode , the DAC output v...

© National Instruments Corporation 5-1 PCI-1200 User Manual 5 Calibration This chapter discusses the calibration procedures for the PCI-1200 analog I/O circuitry. However, the PCI-1200 is factory calibrated, and National Instruments can recalibrate your unit if needed. To maintain the 12-bit accurac...

Chapter 5 Calibration PCI-1200 User Manual 5-2 © National Instruments Corporation If you use the PCI-1200 with NI-DAQ, LabVIEW, LabWindows/CVI, or other application software, the factory calibration constants are automatically loaded into the calibration DAC the first time a function pertaining to t...

Chapter 5 Calibration © National Instruments Corporation 5-3 PCI-1200 User Manual Using the Calibration Function The Calibrate_1200 function and the 1200 Calibrate VI can either load the calibration DACs with the factory constants or the user-defined constants stored in the EEPROM, or you can perfor...

© National Instruments Corporation A-1 PCI-1200 User Manual A Specifications This appendix lists the PCI-1200 specifications. These specifications are typical at 25 ° C unless otherwise stated. Analog Input Input Characteristics Number of channels ............................... Eight single-ended, ...

Appendix A Specifications PCI-1200 User Manual A-2 © National Instruments Corporation Max working voltage ..............................In DIFF or NRSE(signal + common mode) ........................mode, the negative input/AISENSE should remain within ±5 V of AGND (bipolar), or –5 to 2 V (unipolar)....

Appendix A Specifications © National Instruments Corporation A-3 PCI-1200 User Manual Powered off ..................................... 4.7 k Ω min Overload.......................................... 4.7 k Ω min Input bias current ................................... ±100 pA Input offset current ........

Appendix A Specifications PCI-1200 User Manual A-4 © National Instruments Corporation Offset temperature coefficient Pregain .............................................±15 µV/ ° C Postgain ...........................................±100 µV/ ° C Gain temperature coefficient ..................±40 pp...

Appendix A Specifications © National Instruments Corporation A-5 PCI-1200 User Manual System noise is the amount of noise seen by the ADC when there is no signal present at the input of the board. The amount of noise that is reported directly (without any analysis) by the ADC is not necessarily the ...

Appendix A Specifications PCI-1200 User Manual A-6 © National Instruments Corporation gain amplifier. After the input multiplexers are switched, the amplifier must be allowed to settle to the new input signal value to within 12-bit accuracy. The settling time is a function of the gain selected. Anal...

Appendix A Specifications © National Instruments Corporation A-7 PCI-1200 User Manual Power-on state ........................................ 0 V Dynamic Characteristics Settling time to full-scale range (FSR) .. 5 µs Stability Offset temperature coefficient ............... ±50 µV/ ° C Gain temperat...

Appendix A Specifications © National Instruments Corporation A-9 PCI-1200 User Manual Protection ............................................... –0.5 to 5.5 V powered on, ±0.5 V powered off Data transfer ........................................... Interrupts, programmed I/O Digital Trigger Compatibi...

© National Instruments Corporation B-1 PCI-1200 User Manual B Customer Communication For your convenience, this appendix contains forms to help you gather the information necessary to help us solve your technical problems and a form you can use to comment on the product documentation. When you conta...

PCI-1200 User Manual B-2 © National Instruments Corporation Fax-on-Demand Support Fax-on-Demand is a 24-hour information retrieval system containing a library of documents on a wide range of technical information. You can access Fax-on-Demand from a touch-tone telephone at 512 418 1111. E-Mail Suppo...

Technical Support Form Photocopy this form and update it each time you make changes to your software or hardware, and use the completed copy of this form as a reference for your current configuration. Completing this form accurately before contacting National Instruments for technical support helps ...

PCI-1200 Hardware and Software Configuration Form Record the settings and revisions of your hardware and software on the line to the right of each item. Complete a new copy of this form each time you revise your software or hardware configuration, and use this form as a reference for your current co...

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: PCI-1200 User Manual Edition Date: July 1998 Part Number: 320942C-01 Please comment on the complete...

© National Instruments Corporation G-1 PCI-1200 User Manual Glossary Prefix Meanings Value p- pico 10 – 12 n- nano- 10 – 9 µ- micro- 10 – 6 m- milli- 10 – 3 k- kilo- 10 3 M- mega- 10 6 G- giga- 10 9 Numbers/Symbols ° degrees > greater than ≥ greater than or equal to < less than – negative of, ...

© National Instruments Corporation I-1 PCI-1200 User Manual Index A ACH<7..0> signal definition (table), 3-3input ranges (table) bipolar analog input, 3-5unipolar analog input, 3-5 to 3-6 ACK* signal (table), 3-27A/D FIFO, 4-7AGND signal (table), 3-3AISENSE/AIGND signal analog common signal, 3...