Manuel d'utilisation / d'entretien du produit GPIB-BUF du fabricant National Instruments
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© Copyright 1989, 1994 National Instruments Corporation. All Rights Reserved. GPIB-BUF User Manual February 1994 Edition Part Number 320125-01.
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) 879 9422, Austria (0662) 435986, Belgium 02/757.
MicroGPIB Products National Instruments has developed the MicroGPIB product line to offer a series of high performance, low cost IEEE 488 support items that are packaged in small all-metal cases, capable of being rack mounted.
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, malfunc.
FCC/DOC Radio Frequency Interference Compliance This equipment generates and uses radio frequency energy and, if not installed and used in strict accordance with the instructions in this manual, may cause interference to radio and television reception.
There is no guarantee that interference will not occur in a particular installation. However, the chances of interference are much less if the equipment is installed and used according to this instruction manual.
© National Instruments Corp. v i i GPIB-BUF User Manual Contents About This Manual .......................................................................... i x Introduction to the GPIB-BUF .................................................. . i x Organization of This Manual .
Contents GPIB-BUF User Manual v i i i © National Instruments Corp. Appendix A Hardware Specifications .............................................................. A -1 Appendix B Customer Communication ..............................................
© National Instruments Corp. i x GPIB-BUF User Manual About This Manual Introduction to the GPIB-BUF The GPIB-BUF is one of National Instruments family of MicroGPIB products. These products are high-performance, low-cost IEEE 488 support items, packaged in small all-metal cases, capable of being rack mounted.
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, or warning.
© National Instruments Corp. 1 -1 GPIB-BUF User Manual Chapter 1 Description of the GPIB-BUF This chapter contains general information about the National Instruments GPIB-BUF and lists components and accessories.
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 a GPIB system and a single, slower GPIB device (usually a printer or plotter). The GPIB-BUF automatically buffers all device-dependent data sent to the slower device.
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 on the GPIB-BUF front panel. Figure 1-2 shows the front panel of the GPIB -BUF.
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 rear panel of the GPIB-BUF. Figure 1-3. The GPIB-BUF Rear Panel The GPIB Connectors The GPIB-BUF has two GPIB connectors labeled GPIB IN and GPIB OUT.
Chapter 1 Description of the GPIB-BUF © National Instruments, Corp. 1 -5 GPIB-BUF User Manual The port labeled GPIB IN is intended to be connected to a GPIB system that includes one or more GPIB devices which send data to the GPIB target device.
© National Instruments Corp. 2 -1 GPIB-BUF User Manual Chapter 2 Installation and Operation This chapter describes the procedures for installing and operating the GPIB -BUF.
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.
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 GPIB primary address of 5 with the SRQ-on-empty function disabled and device clear recognition and pass through enabled.
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 configure the GPIB primary address and operating modes of the GPIB-BUF.
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 4567 8 Indication OF F OF F OF F OF F.
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 4567 8 Indication O N O F.
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 the front panel rocker switch. The POWER LED should light immediately and the READY indicator should blink while the unit executes its power-on self-test.
© National Instruments Corp. 3 -1 GPIB-BUF User Manual Chapter 3 Technical Information This chapter contains a more detailed description of the operation of the GPIB-BUF. The timing characteristics of the parallel port are provided in this chapter. The GPIB-BUF is actually a powerful 8-bit microcomputer tailored for use as an IEEE 488 data buffer.
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 Service Request (SRQ*) signal on the GPIB IN port. The SRQ condition can be used to signal the GPIB Controller that the GPIB-BUF is powered on and ready to accept data.
Chapter 3 Technical Information © National Instruments Corp. 3 -3 GPIB-BUF User Manual DMA Controller transfers the data directly to the internal data buffer without processor intervention. Thus, GPIB transfer rates as high as 900 kbytes/s are possible.
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-BUF buffers the state of the EOI* signal line along with the data byte it corresponds to using an additional on-board RAM module.
Chapter 3 Technical Information © National Instruments Corp. 3 -5 GPIB-BUF User Manual Polling the GPIB-BUF The GPIB-BUF can return status information to the GPIB Controller through the serial poll response byte as shown in Figure 3-1.
Technical Information Chapte r 3 GPIB-BUF User Manual 3 -6 © National Instruments Corp. The GPIB-BUF SRQ-on-empty feature and serial poll status byte are useful for several reasons. • A remote Controller is able to tell when a data transfer to a plotter or printer is completely finished.
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 0 when the internal data buffer is empty of data. It is set to 1 when the internal data buffer is not empty.
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.
Chapter 3 Technical Information © National Instruments Corp. 3 -9 GPIB-BUF User Manual internal data buffer. This mode can be used to prematurely abort a lengthy plot or print. Neither Group Execute Trigger (GET), Go To Local (GTL), nor Local Lockout (LLO) have any effect on the GPIB-BUF.
Chapter 1 Description of the GPIB-232CV © National Instruments Corp. 1 -1 GPIB-232CV User Manual Appendix A Hardware Specifications This appendix lists the electrical, environmental, and physical specifications of the GPIB-BUF.
Hardware Specifications Appendix A GPIB-BUF User Manual A -2 © National Instruments Corp. Table A-3. Physical Characteristics Characteristic Specification Case Size 1.6 in. by 5.7 in. by 8.4 in. (40.6 mm by 144.8 mm by 213.4 mm) Case Material All metal enclosure Rack Mounting Single or dual kits available Weight 28 oz.
© National Instruments Corp. B -1 GPIB-BUF User Manual Appendix B Customer Communication For your convenience, this appendix contains forms to help you gather the information necessary to help us solve technical problems you might have as well as a form you can use to comment on the product documentation.
Technical Support Form Technical support is available at any time by fax. Include the information from your configuration form. Use additional pages if necessary.
The problem is List any error messages The following steps will reproduce the problem.
Hardware Configuration Form Record the settings and revisions of your hardware on the line to the right of each item. Update this form each time you revise your hardware configuration, and use this form as a reference for your current configuration.
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: GPIB-BUF User Manual Edition Date: February 1994 Part Number: 320125-01 Please comment on the completeness, clarity, and organization of the manual.
If you find errors in the manual, please record the page numbers and describe the errors. Thank you for your help. Name Title Company Address Phone ( ) Mail to: Technical Publications National Instrum.
© 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 A C alternating curren.
Un point important après l'achat de l'appareil (ou même avant l'achat) est de lire le manuel d'utilisation. Nous devons le faire pour quelques raisons simples:
Si vous n'avez pas encore acheté National Instruments GPIB-BUF c'est un bon moment pour vous familiariser avec les données de base sur le produit. Consulter d'abord les pages initiales du manuel d'utilisation, que vous trouverez ci-dessus. Vous devriez y trouver les données techniques les plus importants du National Instruments GPIB-BUF - de cette manière, vous pouvez vérifier si l'équipement répond à vos besoins. Explorant les pages suivantes du manuel d'utilisation National Instruments GPIB-BUF, vous apprendrez toutes les caractéristiques du produit et des informations sur son fonctionnement. Les informations sur le National Instruments GPIB-BUF va certainement vous aider à prendre une décision concernant l'achat.
Dans une situation où vous avez déjà le National Instruments GPIB-BUF, mais vous avez pas encore lu le manuel d'utilisation, vous devez le faire pour les raisons décrites ci-dessus,. Vous saurez alors si vous avez correctement utilisé les fonctions disponibles, et si vous avez commis des erreurs qui peuvent réduire la durée de vie du National Instruments GPIB-BUF.
Cependant, l'un des rôles les plus importants pour l'utilisateur joués par les manuels d'utilisateur est d'aider à résoudre les problèmes concernant le National Instruments GPIB-BUF. Presque toujours, vous y trouverez Troubleshooting, soit les pannes et les défaillances les plus fréquentes de l'apparei National Instruments GPIB-BUF ainsi que les instructions sur la façon de les résoudre. Même si vous ne parvenez pas à résoudre le problème, le manuel d‘utilisation va vous montrer le chemin d'une nouvelle procédure – le contact avec le centre de service à la clientèle ou le service le plus proche.
