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National Instruments GPIB Series Getting Started

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GPIB
Getting Started with
Your GPIB-232/485CT-A
™
and the NI-488.2
Software for Windows
GPIB-232/485CT-A for Windows
November 1999 Edition
Part Number 370899A-01

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Summary of Contents for National Instruments GPIB Series

  • Page 1 GPIB Getting Started with Your GPIB-232/485CT-A ™ and the NI-488.2 Software for Windows GPIB-232/485CT-A for Windows November 1999 Edition Part Number 370899A-01...
  • Page 2 Switzerland 056 200 51 51, Taiwan 02 2377 1200, United Kingdom 01635 523545 For further support information, see the Technical Support Resources appendix. To comment on the documentation, send e-mail to techpubs@ni.com © Copyright 1992, 1999 National Instruments Corporation. All rights reserved.
  • Page 3 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.
  • Page 4 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 National Instruments could void the user’s authority to operate the equipment under the FCC Rules.
  • Page 5 interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: • Reorient or relocate the receiving antenna. •...

  • Page 6: Table Of Contents

    Install and Configure the Software Install the NI-488.2 Software..................3-1 Configure the NI-488.2 Software (Optional)..............3-1 Chapter 4 Verify Your Installation Chapter 5 Begin to Use the NI-488.2 Software Using the Win16 Interactive Control Utility ..............5-1 Programming Considerations ..................5-1 © National Instruments Corporation GPIB-232/485CT-A for Windows...
  • Page 7 S Mode Switch Settings for Baud Rate..........2-2 Table 2-2. S Mode Switch Settings for Data Format ..........2-3 Table 2-3. National Instruments S and RS1 Null-Modem Serial Cables ....2-4 Table 2-4. National Instruments RS2 Null-Modem Serial Cables ......2-5 GPIB-232/485CT-A for Windows viii www.ni.com...

  • Page 8: About This Manual

    About This Manual This manual contains instructions to help you install and configure the National Instruments GPIB-232CT-A RS-232-to-GPIB controller or GPIB-485CT-A RS-485-to-GPIB controller and the NI-488.2 software for Windows. The NI-488.2 software is intended for use with Windows 3.x. This manual assumes that you are already familiar with Windows 3.x.

  • Page 9: Related Documentation

    About This Manual Text in this font denotes text or characters that you should enter from the monospace keyboard, sections of code, programming examples, and syntax examples. This font is also used for the proper names of disk drives, paths, directories, programs, subprograms, subroutines, device names, functions, operations, variables, filenames and extensions, and code excerpts.

  • Page 10: Introduction

    If you have an AC version, one of the following power cords, which is included in your kit: – U.S. standard power cord – Swiss power cord – Australian power cord – Universal European power cord – North American power cord – U.K. power cord © National Instruments Corporation GPIB-232/485CT-A for Windows...

  • Page 11: Gpib-232Ct-A Hardware Overview

    – Desktop power supply (220–240 VAC, 9 V, 1 A) One of the following shielded cables, compatible with IBM PC, which you can purchase from National Instruments: – RS-232 DTE-to-DTE cable (1, 2, or 4 m) for the GPIB-232CT-A –...

  • Page 12: Ni-488.2 Software Overview

    LabVIEW. LabVIEW also comes with hundreds of instrument drivers, which dramatically reduce software development time, because you do not have to spend time programming the low-level control of each instrument. © National Instruments Corporation GPIB-232/485CT-A for Windows...
  • Page 13 LabWindows/CVI is similar to LabVIEW, except that it combines an interactive, easy-to-use development approach with the programming power and flexibility of compiled ANSI C code. For ordering information, or to request free demonstration software, contact National Instruments. GPIB-232/485CT-A for Windows www.ni.com...

  • Page 14: Configure And Install Your Hardware

    G mode. Figure 2-1 shows the factory default setting of the DIP switch. Although the numbers in the figure do not appear on the GPIB-232/485CT-A itself, they appear here as a point of reference. © National Instruments Corporation GPIB-232/485CT-A for Windows...

  • Page 15: Figure 2-1. Default Setting (S Mode) For Dip Switch

    The factory default settings are in bold. Table 2-1. S Mode Switch Settings for Baud Rate Switches Indication 300 baud 600 baud 1200 baud 2400 baud 4800 baud 9600 baud 19200 baud 38400 baud © National Instruments Corporation GPIB-232/485CT-A for Windows...

  • Page 16: Install The Hardware

    Chapter 2 Configure and Install Your Hardware Table 2-2. S Mode Switch Settings for Data Format Switch Position Indication odd parity even parity parity generation/checking disabled parity generation/checking enabled 1 stop bit/character 2 stop bits/character 7 bits/character 8 bits/character Install the Hardware Complete the following steps to install your GPIB-232/485CT-A.

  • Page 17: Step 3. Verify That You Have The Correct Serial Cable

    182238-04 9-pin to 9-pin, 4 m 181074-10 9-pin to 25-pin, 1 m Figure 2-2 shows the pinout of the 9-pin to 9-pin National Instruments S null-modem cables. 9 Pin DTE 9 Pin DTE Figure 2-2. 9-Pin to 9-Pin Null-Modem Cable Pinout ©...

  • Page 18: Figure 2-3. 9-Pin To 25-Pin Null-Modem Cable Pinout

    Chapter 2 Configure and Install Your Hardware Figure 2-3 shows the pinout of the 9-pin to 25-pin National Instruments null-modem cables. 9 Pin DTE 25 Pin DTE Figure 2-3. 9-Pin to 25-Pin Null-Modem Cable Pinout Note Pins 1, 6, and 9 are not connected internally on the GPIB-232CT-A.

  • Page 19: Step 4. Connect The Cables

    If you have an AC version, use the front panel rocker switch to power on your GPIB-232/485CT-A. If you have a DC version, use the power switch on the rear panel to power on your GPIB-232/485CT-A. © National Instruments Corporation GPIB-232/485CT-A for Windows...
  • Page 20 Chapter 2 Configure and Install Your Hardware The POWER LED indicator should come on immediately. The READY LED indicator should come on after the GPIB-232/485CT-A has passed its power-on self test, indicating the unit is ready for operation. If the READY LED does not come on within seven seconds after the unit is powered on, recheck all connections and switch settings and retry the power-on sequence.

  • Page 21: Install And Configure The Software

    In the Main group of the Program Manager, double-click on the Control Panel icon. Double-click on the GPIB icon. The utility displays a list of all the GPIB interfaces and device names. © National Instruments Corporation GPIB-232/485CT-A for Windows...
  • Page 22 Chapter 3 Install and Configure the Software Double-click on any name to view or change it. If you have any questions, use the online help. After you install and configure the software, continue to Chapter 4, Verify Your Installation. GPIB-232/485CT-A for Windows www.ni.com...

  • Page 23: Verify Your Installation

    If the diagnostic test completes with no errors, the NI-488.2 software is installed correctly. If it returns an error message, refer to the Troubleshooting Diagnostic Test Error Messages section in Appendix A, Troubleshooting and Common Questions. ni© National Instruments Corporation GPIB-232/485CT-A for Windows...

  • Page 24: Begin To Use The Ni-488.2 Software

    For information about choosing a programming method, developing your application, or compiling and linking, refer to the NI-488.2 User Manual for Windows. For detailed information about each NI-488.2 call, refer to the NI-488.2 Function Reference Manual for DOS/Windows. © National Instruments Corporation GPIB-232/485CT-A for Windows...
  • Page 25 Windows for information about the GPIB software configuration utility. • The interface might not be properly installed. Refer to the Install the Hardware section of Chapter 2, Configure and Install Your Hardware, for information about installing the GPIB-232/485CT-A. © National Instruments Corporation GPIB-232/485CT-A for Windows...
  • Page 26 Troubleshooting Hardware Problems Warning The AC version of the GPIB-232/485CT-A contains circuitry that operates with hazardous voltages. Do not open the unit unless so instructed by National Instruments. Be sure to remove the power cord before opening the unit. •...
  • Page 27 NI-488.2 software for Windows. Can I have the DOS and Windows drivers for NI-488.2 installed at the same time? Yes, but you should not access both drivers at the same time. © National Instruments Corporation GPIB-232/485CT-A for Windows...
  • Page 28 No. The drivers are not interchangeable and cannot be loaded at the same time. What information should I have before I call National Instruments? Before you call National Instruments, make a note of the results of the tests and the output from ibdiag...
  • Page 29 Power supply unit (50–60 Hz input, 9 VDC at 1 A output) Wall-mount type ......100–120 VAC ± 10% Desktop type ........220–240 VAC ± 10% DC input..........+5 to +13, regulated Current ........... 700 mA minimum © National Instruments Corporation GPIB-232/485CT-A for Windows...
  • Page 30 Appendix B Specifications Environmental Characteristics AC Version Operating temperature ......10 to 40 °C Storage temperature ........0 to 70 °C Relative humidity ........10% to 95%, noncondensing EMI ............FCC Class A Verified DC Version Operating temperature ......10 to 40 °C Storage temperature ........0 to 70 °C Relative humidity ........10% to 95%, noncondensing EMI ............FCC Class B Certified Physical Characteristics...

  • Page 31: Technical Support Resources

    Technical Support Resources This appendix describes the comprehensive resources available to you in the Technical Support section of the National Instruments Web site and provides technical support telephone numbers for you to use if you have trouble connecting to our Web site or if you do not have internet access.
  • Page 32 If you have trouble connecting to our Web site, please contact your local National Instruments office or the source from which you purchased your National Instruments product(s) to obtain support. For telephone support in the United States, dial 512 795 8248. For...
  • Page 33 American Standard Code for Information Interchange Celsius Canadian Standards Association dual inline package dynamic link library EDVR DOS error Electronic Industries Association electromagnetic interference GPIB error Federal Communications Commission grams ground GPIB General Purpose Interface Bus hexadecimal © National Instruments Corporation GPIB-232/485CT-A for Windows...
  • Page 34 Glossary hertz International Electrotechnical Commission IEEE Institute for Electrical and Electronic Engineers inches Input/Output Interrupt Request International Standards Organization light-emitting diode meters megabytes of memory ounces personal computer random-access memory seconds Underwriters Laboratories volts volts alternating current volts direct current GPIB-232/485CT-A for Windows www.ni.com...

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