Instruction/ maintenance manual of the product GPIB-100A National Instruments
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© Copyright 1985, 1991 National Instruments Corporation. All Rights Reserved. GPIB-100A User Manual March 1990 Edition Part Number 320063-01.
National Instruments Corporation 6504 Bridge Point Parkway Austin, TX 78730-5039 (512) 794-0100 (800) IEEE-488 (toll-free U.S. and Canada) Technical support fax: (512) 794-5678.
Limited Warranty The GPIB-100A is warranted against defects in materials and workmanship for a period of two years 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.
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.
© National Instruments Corporation v GPIB-100A User Manual Preface Organization of the Manual This manual is divided into the following chapters: Chapter 1, Description of the GPIB-100A , contains a brief description of the GPIB-100A Bus Extender and how it is used.
Preface GPIB-100A User Manual v i © National Instruments Corporation Abbreviations Used in the Manual The following abbreviations are used in the text of this manual.
© National Instruments Corporation v i i GPIB-100A User Manual Contents Chapter 1 Description of the GPIB-100A ....................................................................................... 1-1 Introduction...................................
Contents GPIB-100A User Manual viii © National Instruments Corporation Appendix A Operation of the GPIB ....................................................................................................... A-1 History of the GPIB...................
Contents © National Instruments Corporation ix GPIB-100A User Manual Figures Figure 1-1. The Model GPIB-100A Bus Extender .................................................................. 1-1 Figure 1-2. Typical GPIB-100A Extension System (Physical Configuration) .
© National Instruments Corporation 1- 1 GPIB-100A User Manual Chapter 1 Description of the GPIB-100A Introduction The high-speed GPIB-100A Bus Extender (Figure 1-1) is used in pairs with a special parallel data transmission cable to connect two separate GPIB or IEEE-488 bus systems in a functionally transparent manner.
Description of the GPIB-100A Chapter 1 GPIB-100A User Manual 1 - 2 © National Instruments Corporation extension. And because the GPIB-100A is a functionally transparent extender, the same GPIB communications and control programs that work with an unextended system will work unmodified with an extended system.
Chapter 1 Description of the GPIB-100A © National Instruments Corporation 1- 3 GPIB-100A User Manual GPIB-100A Specifications The following tables show the system configuration; the performance, oper.
Description of the GPIB-100A Chapter 1 GPIB-100A User Manual 1 - 4 © National Instruments Corporation Table 1-2. Performance Characteristics Characteristic Specification speed 250 to 135 kbytes/sec (approximately 4 µ sec per byte degraded at 10.
Chapter 1 Description of the GPIB-100A © National Instruments Corporation 1- 5 GPIB-100A User Manual Table 1-4. Electrical Characteristics Characteristic Specification GPIB interface circuit duplex t.
Description of the GPIB-100A Chapter 1 GPIB-100A User Manual 1 - 6 © National Instruments Corporation Table 1-6. Physical Characteristics Characteristic Specification case style C S 2 size 3.
© National Instruments Corporation 2- 1 GPIB-100A User Manual Chapter 2 Installation Inspection Inspect the shipping container and contents for evidence of physical damage or stress. If damage is discovered and appears to have been caused in shipment, file a claim with the carrier.
Installation Chapter 2 GPIB-100A User Manual 2 - 2 © National Instruments Corporation Grounding Configuration A U.S. standard three-wire power cable is provided with the GPIB-100A. When connected to a power source, this cable connects the equipment chassis to the power ground.
© National Instruments Corporation 3- 1 GPIB-100A User Manual Chapter 3 Configuration and Operation Users who are unfamiliar with the GPIB should first read Appendix A, Operation of the GPIB , to become familiar with GPIB terminology and protocol.
Configuration and Operation Chapter 3 GPIB-100A User Manual 3 - 2 © National Instruments Corporation Talker/Listener (TL) Mode There is no Controller and only one Talker in the TL mode of operation, sometimes called talk only mode. Usually, there is just one Listener as well.
Chapter 3 Configuration and Operation © National Instruments Corporation 3- 3 GPIB-100A User Manual Buffered PPR Mode (Approach 1) Most Controllers pulse the IDY signal for a period of time exceeding 2 µ sec and expect a response within that time.
Configuration and Operation Chapter 3 GPIB-100A User Manual 3 - 4 © National Instruments Corporation Mixed Mode Operation If there are multiple Controllers and all of the same type are located on the same side of the extension, the two GPIB-100A units can be set to Unbuffered and Buffered PPR modes accordingly.
© National Instruments Corporation 4- 1 GPIB-100A User Manual Chapter 4 Theory of Operation Diagrams Figure 4-1 shows a block diagram for the GPIB-100A. Refer to Appendix B for GPIB-100A schematic diagrams and Appendix C for the GPIB-100A parts locator diagram.
Theory of Operation Chapter 4 GPIB-100A User Manual 4 - 2 © National Instruments Corporation System Controller Detection PON initializes FFs U22A and U12A to clear the Remote System Controller (RSC) and Local System Controller (LSC) signals.
Chapter 4 Theory of Operation © National Instruments Corporation 4- 3 GPIB-100A User Manual • Whenever a change in the state of the local ATN signal is caused by a pulse created via U38E, U24B/C, and associated RC network. • While ATN or DAV is received from the local side (U34A/D).
Theory of Operation Chapter 4 GPIB-100A User Manual 4 - 4 © National Instruments Corporation the remote poll response into register U16. Clearing U45B unasserts XEOI and XATN, and after they propagate to the remote side, BUS PP is also unasserted.
© National Instruments Corporation A- 1 GPIB-100A User Manual Appendix A Operation of the GPIB History of the GPIB The GPIB is a link, bus, or interface system through which interconnected electronic devices communicate.
Operation of the GPIB Appendix A GPIB-100A User Manual A - 2 © National Instruments Corporation The role of the GPIB Controller can also be compared to the role of the computer's CPU, but a better analogy is to the switching center of a city telephone system.
Appendix A Operation of the GPIB © National Instruments Corporation A- 3 GPIB-100A User Manual Figure A-1 shows the arrangement of these signals on the GPIB cable connector.
Operation of the GPIB Appendix A GPIB-100A User Manual A - 4 © National Instruments Corporation NDAC (not data accepted) NDAC indicates when a device has or has not accepted a message byte. The line is driven by all devices when receiving commands and by Listeners when receiving data messages.
Appendix A Operation of the GPIB © National Instruments Corporation A- 5 GPIB-100A User Manual Physical and Electrical Characteristics Devices are usually connected with a cable assembly consisting of a shielded 24-conductor cable with both a plug and receptacle at each end.
Operation of the GPIB Appendix A GPIB-100A User Manual A - 6 © National Instruments Corporation Figure A-3. Star Configuration of GPIB Devices The standard connector is the Amphenol or Cinch Series 57 MICRORIBBON or AMP CHAMP type. An adapter cable using non-standard cable and/or connector is used for special interconnect applications.
Appendix A Operation of the GPIB © National Instruments Corporation A- 7 GPIB-100A User Manual Configuration Restrictions To achieve the high data transfer rate that the GPIB is designed for, the physical distance between devices and the number of devices on the bus is limited.
© National Instruments Corporation B- 1 GPIB-100A User Manual Appendix B Schematic Diagram This appendix contains the schematic diagram for the GPIB-100A.
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© National Instruments Corporation C-1 GPIB-100A User Manual Appendix C GPIB-100A Parts Locator Diagram This appendix contains the parts locator diagram for the GPIB-100A. The parts locator diagram shows the locations of the GPIB-100A configuration jumpers and switches.
© National Instruments Corporation D - 1 GPIB-100A User Manual Appendix D Cable Assembly Wire List This appendix contains the wire list for the GPIB-100A Transmission Cable.
Table D-1. Cable Assembly Wire List.
© National Instruments Corporation E- 1 GPIB-100A User Manual Appendix E Multiline Interface Command Messages The following tables are multiline interface messages (sent and received with ATN TRUE).
Multiline Interface Command Messages Appendix E GPIB-100A User Manual E - 2 © National Instruments Corporation Multiline Interface Messages H e x Oct D e c ASCII M s g H e x Oct D e c ASCII M s g 00 .
Appendix E Multiline Interface Command Messages © National Instruments Corporation E- 3 GPIB-100A User Manual Multiline Interface Messages H e x Oct D e c ASCII M s g H e x Oct D e c ASCII M s g 40 1.
© National Instruments Corporation F- 1 GPIB-100A User Manual Appendix F Mnemonics Key This appendix contains a mnemonics key that defines the mnemonics (abbreviations) used throughout this manual.
Mnemonics Key Appendix F GPIB-100A User Manual F- 2 © National Instruments Corporation Mnemonic Definition R E N Remote Enable R F D Ready for Data RR Remote Response R S Remote Source RS C Remote Sy.
User 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-100A User Manual Edition Date March 1990 Part Number: 320063-01 Please comment on the completeness, clarity, and organization of the manual.
An important point after buying a device National Instruments GPIB-100A (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought National Instruments GPIB-100A yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data National Instruments GPIB-100A - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, National Instruments GPIB-100A you will learn all the available features of the product, as well as information on its operation. The information that you get National Instruments GPIB-100A will certainly help you make a decision on the purchase.
If you already are a holder of National Instruments GPIB-100A, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime National Instruments GPIB-100A.
However, one of the most important roles played by the user manual is to help in solving problems with National Instruments GPIB-100A. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device National Instruments GPIB-100A along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
