Page 4 - Warning Regarding Medical and Clinical Use
action accrues. National Instruments shall not be liable for any delay inperformance due to causes beyond its reasonable control. The warrantyprovided herein does not cover damages, defects, malfunctions, or servicefailures caused by owner’s failure to follow the National Instrumentsinstallation, op...
Page 5 - Federal Communications Commission
FCC/DOC Radio Frequency Interference Compliance This equipment generates and uses radio frequency energy and, if notinstalled and used in strict accordance with the instructions in this manual,may cause interference to radio and television reception. This equipmenthas been tested and found to comply...
Page 7 - Contents; About This Manual
© National Instruments Corp. vii GPIB-BUF User Manual Contents About This Manual .......................................................................... ix Introduction to the GPIB-BUF ................................................... ixOrganization of This Manual .................................
Page 8 - Glossary
Contents GPIB-BUF User Manual viii © National Instruments Corp. Appendix AHardware Specifications .............................................................. A-1 Appendix BCustomer Communication .......................................................... B-1 Glossary .................................
Page 9 - Introduction to the GPIB-BUF
© National Instruments Corp. ix GPIB-BUF User Manual About This Manual Introduction to the GPIB-BUF The GPIB-BUF is one of National Instruments family of MicroGPIBproducts. These products are high-performance, low-cost IEEE 488support items, packaged in small all-metal cases, capable of being rackmo...
Page 10 - Conventions Used in This Manual; Related Documentation
About This Manual GPIB-BUF User Manual x © National Instruments Corp. Conventions Used in This Manual The following conventions are used in this manual. italic Italic text denotes emphasis, a cross reference,or an introduction to a key concept. bold italic Bold italic text denotes a note, caution, o...
Page 11 - Introduction
© National Instruments Corp. 1-1 GPIB-BUF User Manual Chapter 1Description of the GPIB-BUF This chapter contains general information about the National InstrumentsGPIB-BUF and lists components and accessories. Introduction The GPIB-BUF, shown in Figure 1-1, is an IEEE 488 (GPIB) data bufferwhich inc...
Page 12 - What Your Kit Contains; Optional Equipment; Component
Description of the GPIB-BUF Chapter 1 GPIB-BUF User Manual 1-2 © National Instruments Corp. The GPIB-BUF has two isolated GPIB ports and is placed in-line between aGPIB system and a single, slower GPIB device (usually a printer or plotter).The GPIB-BUF automatically buffers all device-dependent data...
Page 13 - The GPIB-BUF Front Panel
Chapter 1 Description of the GPIB-BUF © National Instruments, Corp. 1-3 GPIB-BUF User Manual The GPIB-BUF Front Panel The power switch and six Light Emitting Diodes (LEDs) are mounted onthe GPIB-BUF front panel. Figure 1-2 shows the front panel of theGPIB -BUF. GPIB-BUF IEEE-488 IEEE-488 BUFFER POWE...
Page 14 - The GPIB-BUF Rear Panel
Description of the GPIB-BUF Chapter 1 GPIB-BUF User Manual 1-4 © National Instruments Corp. The GPIB-BUF Rear Panel Figure 1-3 shows the power cable and the GPIB cables connected to the rearpanel of the GPIB-BUF. Figure 1-3. The GPIB-BUF Rear Panel The GPIB Connectors The GPIB-BUF has two GPIB conne...
Page 17 - Installation; Step 2. Verify the Voltage Requirement
Installation and Operation Chapter 2 GPIB-BUF User Manual 2-2 © National Instruments Corp. Installation Install the GPIB-BUF according to the following procedure. 1. Inspect the GPIB-BUF. 2. Verify the voltage requirement. 3. Configure th e operating parameters. 4. Connect the cables. 5. Power on th...
Page 18 - Step 3. Configure the Operating Parameters
Chapter 2 Installation and Operation © National Instruments Corp. 2-3 GPIB-BUF User Manual Step 3. Configure the Operating Parameters The GPIB-BUF is shipped from the factory configured to operate at a GPIBprimary address of 5 with the SRQ-on-empty function disabled and deviceclear recognition and p...
Page 19 - Set Configuration Switches; Switch
Installation and Operation Chapter 2 GPIB-BUF User Manual 2-4 © National Instruments Corp. Set Configuration Switches Use the DIP switch at location U38 on the printed circuit board to configurethe GPIB primary address and operating modes of the GPIB-BUF. The DIPswitch has eight configuration switch...
Page 20 - Switches
Chapter 2 Installation and Operation © National Instruments Corp. 2-5 GPIB-BUF User Manual Table 2-2. Configuration Parameters for Switches 4 through 8 Switches 4 5 6 7 8 Indication OFF OFF OFF OFF OFF Sets GPIB primary address 0 OFF OFF OFF OFF ON Sets GPIB primary address 1 OFF OFF OFF ON OFF Sets...
Page 21 - Step 4. Connect the Cables
Installation and Operation Chapter 2 GPIB-BUF User Manual 2-6 © National Instruments Corp. Table 2-2. Configuration Parameters for Switches 4 through 8 (Continued) Switches 4 5 6 7 8 Indication ON OFF ON OFF OFF Sets GPIB primary address 20 ON OFF ON OFF ON Sets GPIB primary address 21 ON OFF ON ON ...
Page 22 - Step 5. Power on the Unit; Operation
Chapter 2 Installation and Operation © National Instruments Corp. 2-7 GPIB-BUF User Manual Step 5. Power on the Unit Power on your target device then power on your GPIB-BUF by using thefront panel rocker switch. The POWER LED should light immediately andthe READY indicator should blink while the uni...
Page 23 - Power Up
© National Instruments Corp. 3-1 GPIB-BUF User Manual Chapter 3Technical Information This chapter contains a more detailed description of the operation of theGPIB-BUF. The timing characteristics of the parallel port are provided inthis chapter. The GPIB-BUF is actually a powerful 8-bit microcomputer...
Page 24 - Addressing
Technical Information Chapte r 3 GPIB-BUF User Manual 3-2 © National Instruments Corp. If the SRQ-on-empty feature is enabled, the GPIB-BUF asserts the ServiceRequest (SRQ*) signal on the GPIB IN port. The SRQ condition can beused to signal the GPIB Controller that the GPIB-BUF is powered on andread...
Page 25 - EOI
Chapter 3 Technical Information © National Instruments Corp. 3-3 GPIB-BUF User Manual DMA Controller transfers the data directly to the internal data bufferwithout processor intervention. Thus, GPIB transfer rates as high as 900kbytes/s are possible. The GPIB-BUF turns off the EMPTY indicator assoon...
Page 26 - IFC; REN
Technical Information Chapte r 3 GPIB-BUF User Manual 3-4 © National Instruments Corp. When receiving data while addressed as a GPIB Listener, the GPIB-BUFbuffers the state of the EOI* signal line along with the data byte itcorresponds to using an additional on-board RAM module. Therefore, theGPIB-B...
Page 29 - PPE
Chapter 3 Technical Information © National Instruments Corp. 3-7 GPIB-BUF User Manual Internally, the local Individual Status (ist) bit of the GPIB-BUF is reset to 0when the internal data buffer is empty of data. It is set to 1 when theinternal data buffer is not empty. Therefore, after the GPIB Con...
Page 30 - Special Note About Timeouts
Technical Information Chapte r 3 GPIB-BUF User Manual 3-8 © National Instruments Corp. Special Note About Timeouts If your current GPIB system relies on a timeout method to ensure a non-functioning GPIB device does not hang the bus indefinitely, then it may benecessary to adjust or disable the time ...
Page 32 - Characteristic
Chapter 1 Description of the GPIB-232CV © National Instruments Corp. 1-1 GPIB-232CV User Manual Appendix AHardware Specifications This appendix lists the electrical, environmental, and physical specifications of the GPIB-BUF. Table A-1. Electrical Characteristics Characteristic Specification Power S...
Page 34 - Branch Offices
© National Instruments Corp. B-1 GPIB-BUF User Manual Appendix BCustomer Communication For your convenience, this appendix contains forms to help you gather theinformation necessary to help us solve technical problems you might have as wellas a form you can use to comment on the product documentatio...
Page 35 - Technical Support Form
Technical Support Form Technical support is available at any time by fax. Include the informationfrom your configuration form. Use additional pages if necessary. Name Company Address Fax ( ) Phone ( ) Computer brand Model Processor Operating system Speed MHz RAM MB Display adapter Mouse yes no Other...
Page 37 - Hardware Configuration Form; National Instruments Products; Other Products
Hardware Configuration Form Record the settings and revisions of your hardware on the line to the right ofeach item. Update this form each time you revise your hardwareconfiguration, and use this form as a reference for your currentconfiguration. National Instruments Products • GPIB-BUF Revision • S...
Page 38 - Documentation Comment Form
Documentation Comment Form National Instruments encourages you to comment on the documentationsupplied with our products. This information helps us provide qualityproducts to meet your needs. Title: GPIB-BUF User Manual Edition Date: February 1994 Part Number: 320125-01 Please comment on the complet...
Page 40 - Prefix
© National Instruments Corp. G-1 GPIB-BUF User Manual Glossary Prefix Meaning Value µ - micro 10 -6 m- milli- 10 -3 k- kilo- 10 3 M- mega- 10 6 ° degrees % percent A amperes AC alternating current ANSI American National Standards Institute C Celsius EMI electromagnetic interference FCC Federal Comm ...
