National Instruments GPIB-130 Manual
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GPIB-130
User Manual
November 1993 Edition
Part Number 370897A-01
© Copyright 1991, 1994 National Instruments Corporation.
All Rights Reserved.
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:
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Spain (91) 640 0085, Sweden 08-730 49 70, Switzerland 056/20 51 51, U.K. 0635 523545
Limited Warranty
The GPIB-130 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. This warranty includes parts and labor.
A Return Material Authorization (RMA) number must be obtained from the factory and clearly marked on the
outside of the package before any equipment will be accepted for warranty work. National Instruments will pay the
shipping costs of returning to the owner parts which are covered by warranty.
National Instruments believes that the information in this manual is accurate. The document has been carefully
reviewed for technical accuracy. In the event that technical or typographical errors exist, National Instruments
reserves the right to make changes to subsequent editions of this document without prior notice to holders of this
edition. The reader should consult National Instruments if errors are suspected. In no event shall National
Instruments be liable for any damages arising out of or related to this document or the information contained in it.
EXCEPT AS SPECIFIED HEREIN, NATIONAL INSTRUMENTS MAKES NO WARRANTIES, EXPRESS OR IMPLIED,
AND SPECIFICALLY DISCLAIMS ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR
PURPOSE
OF
NATIONAL INSTRUMENTS WILL NOT BE LIABLE FOR DAMAGES RESULTING FROM LOSS OF DATA, PROFITS,
USE OF PRODUCTS, OR INCIDENTAL OR CONSEQUENTIAL DAMAGES, EVEN IF ADVISED OF THE POSSIBILITY
THEREOF
whether in contract or tort, including negligence. 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. The warranty provided herein does not cover damages, defects,
malfunctions, or service failures caused by owner’s failure to follow the National Instruments installation, operation,
or maintenance instructions; owner’s modification of the product; owner’s abuse, misuse, or negligent acts; and
power failure or surges, fire, flood, accident, actions of third parties, or other events outside reasonable control.
. CUSTOMER’S RIGHT TO RECOVER DAMAGES CAUSED BY FAULT OR NEGLIGENCE ON THE PART
NATIONAL INSTRUMENTS SHALL BE LIMITED TO THE AMOUNT THERETOFORE PAID BY THE CUSTOMER.
. This limitation of the liability of National Instruments will apply regardless of the form of action,
Copyright
Under the copyright laws, this publication may not be reproduced or transmitted in any form, electronic or
mechanical, including photocopying, recording, storing in an information retrieval system, or translating, in whole
or in part, without the prior written consent of National Instruments Corporation.
Trademarks
Product and company names listed are trademarks or trade names of their respective companies.
Warning Regarding Medical and Clinical Use
of National Instruments Products
National Instruments products are not designed with components and testing intended to ensure a level of reliability
suitable for use in treatment and diagnosis of humans. Applications of National Instruments products involving
medical or clinical treatment can create a potential for accidental injury caused by product failure, or by errors on
the part of the user or application designer. Any use or application of National Instruments products for or involving
medical or clinical treatment must be performed by properly trained and qualified medical personnel, and all
traditional medical safeguards, equipment, and procedures that are appropriate in the particular situation to prevent
serious injury or death should always continue to be used when National Instruments products are being used.
National Instruments products are NOT intended to be a substitute for any form of established process, procedure, or
equipment used to monitor or safeguard human health and safety in medical or clinical treatment.
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. This equipment has been tested
and found to comply with the following two regulatory agencies:
Federal Communications Commission
This device complies with Part 15 of the Federal Communications Commission (FCC) Rules for a Class A digital
device. Operation is subject to the following two conditions:
1. This device may not cause harmful interference in commercial environments.
2. This device must accept any interference received, including interference that may cause undesired operation.
Canadian Department of Communications
This device complies with the limits for radio noise emissions from digital apparatus set out in the Radio
Interference Regulations of the Canadian Department of Communications (DOC).
Le présent appareil numérique n’émiet pas de bruits radioélectriques dépassant les limites applicables aux appareils
numériques de classe A prescrites dans le réglement sur le brouillage radioélectrique édicté par le ministére des
communications du Canada.
Instructions to Users
These regulations are designed to provide reasonable protection against harmful interference from the equipment to
radio reception in commercial areas. Operation of this equipment in a residential area is likely to cause harmful
interference, in which case the user will be required to correct the interference at his own expense.
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.
If the equipment does cause interference to radio or television reception, which can be determined by turning the
equipment on and off, one or more of the following suggestions may reduce or eliminate the problem.
• Operate the equipment and the receiver on different branches of your AC electrical system.
• Move the equipment away from the receiver with which it is interfering.
• Reorient or relocate the receiver’s antenna.
• Be sure that the equipment is plugged into a grounded outlet and that the grounding has not been defeated with
a cheater plug.
Notice to user: Changes or modifications not expressly approved by National Instruments could void the user’s
authority to operate the equipment under the FCC Rules.
If necessary, consult National Instruments or an experienced radio/television technician for additional suggestions.
The following booklet prepared by the FCC may also be helpful: How to Identify and Resolve Radio-TV
Interference Problems. This booklet is available from the U.S. Government Printing Office, Washington, DC
20402, Stock Number 004-000-00345-4.
Contents
About This Manual.............................................................................................................ix
Organization of This Manual.........................................................................................ix
Conventions Used in This Manual.................................................................................ix
Related Documentation..................................................................................................x
Customer Communication .............................................................................................x
Chapter 1
Introduction
Description of the GPIB-130 .........................................................................................1-1
What Your Kit Should Contain......................................................................................1-3
Optional Equipment.......................................................................................................1- 4
Unpacking Your GPIB-130 ...........................................................................................1- 4
Chapter 2
Connection
Connecting the GPIB-130..............................................................................................2-1
..........................................................................................................................1-1
.............................................................................................................................2-1
Connecting an External Power Supply ..............................................................2-2
Connecting to a Specially Configured GPIB Interface Board...........................2- 2
Connecting to Hewlett-Packard Controllers......................................................2-3
Chapter 3
Configuration and Operation
Operating Modes............................................................................................................3-1
Unbuffered Mode...............................................................................................3-1
Buffered Mode...................................................................................................3- 1
Setting the Operating Mode...............................................................................3-2
Parallel Poll Response (PPR) Modes.............................................................................3-2
Stored PPR Mode (Approach 1) ........................................................................3-3
Immediate PPR Mode (Approach 2)..................................................................3-3
Choosing the PPR Mode....................................................................................3-3
Setting the PPR Mode........................................................................................3-4
Operating the GPIB-130 System....................................................................................3-4
Power LED.........................................................................................................3-4
Link LED ...........................................................................................................3-5
Talk LED............................................................................................................3- 5
Listen LED.........................................................................................................3-5
.........................................................................................3-1
Chapter 4
Theory of Operation
Power-On (PON) State...................................................................................................4-1
System Controller Detection..........................................................................................4-2
Controller-In-Charge Detection.....................................................................................4- 2
Source Handshake Detection.........................................................................................4-2
Parallel Poll Detection ...................................................................................................4-2
FIFO Controller..............................................................................................................4-2
..........................................................................................................4-1
© National Instruments Corporation v GPIB-130 User Manual
Contents
Appendix A
Operation of the GPIB
Types of Messages.........................................................................................................A-1
Talkers, Listeners, and Controllers................................................................................A-1
The Controller-In-Charge and System Controller .........................................................A-2
GPIB Signals and Lines.................................................................................................A-2
Data Lines..........................................................................................................A-2
Handshake Lines................................................................................................A-2
Not Ready For Data (NRFD).................................................................A-2
Not Data Accepted (NDAC)..................................................................A-3
Data Valid (DAV)..................................................................................A-3
Interface Management Lines..............................................................................A-3
Attention (ATN).....................................................................................A-3
Interface Clear (IFC)..............................................................................A-3
Remote Enable (REN) ...........................................................................A-3
Service Request (SRQ) ..........................................................................A-3
End Or Identify (EOI)............................................................................A-3
Physical and Electrical Characteristics..........................................................................A-4
Configuration Requirements..........................................................................................A-7
Related Document..........................................................................................................A-7
......................................................................................................A-1
Appendix B
Specifications
System Configuration ....................................................................................................B- 1
Performance Characteristics ..........................................................................................B-1
Operating Characteristics...............................................................................................B-2
Electrical Characteristics................................................................................................B-2
Environmental Characteristics.......................................................................................B-2
Physical Characteristics .................................................................................................B- 2
........................................................................................................................B-1
Appendix C
Cable Assembly Wire List
...............................................................................................C-1
Appendix D
Multiline Interface Messages
..........................................................................................D-1
Appendix E
Customer Communication
...............................................................................................E-1
Glossary......................................................................................................................Glossary-1
GPIB-130 User Manual vi © National Instruments Corporation
Contents
Figures
Figure 1-1. The Model GPIB-130 Bus Extender.................................................................1-1
Figure 1-2. Typical GPIB-130 Extension System (Physical Configuration)......................1-2
Figure 1-3. Typical GPIB-130 Extension System (Logical Configuration)........................1-2
Figure 2-1. GPIB-130 Side View........................................................................................2-1
Figure 3-1. Switch Setting for Operating Mode..................................................................3-2
Figure 3-2. Switch Setting for Parallel Poll Response (PPR) Mode...................................3- 4
Figure 4-1. GPIB-130 Block Diagram ................................................................................4-1
Figure A-1. GPIB Connector and the Signal Assignment....................................................A-4
Figure A-2. Linear Configuration ........................................................................................A-5
Figure A-3. Star Configuration ............................................................................................A-6
Table
Table C-1. Cable Assembly Wire List................................................................................C-1
© National Instruments Corporation vii GPIB-130 User Manual
About This Manual
This manual describes how to use the National Instruments GPIB-130 bus extender.
Organization of This Manual
This manual is organized as follows:
• Chapter 1, Introduction, contains a description of the GPIB-130, lists the contents of your
GPIB-130 kit, lists optional equipment, and explains how to unpack the GPIB-130.
• Chapter 2, Connection, contains information for connecting your GPIB-130.
• Chapter 3, Configuration and Operation, describes how to configure and operate a GPIB-130
system.
• Chapter 4, Theory of Operation, describes how the GPIB-130 circuitry operates.
• Appendix A, Operation of the GPIB, describes GPIB terminology and protocol for users
unfamiliar with the GPIB.
• Appendix B, Specifications, lists the specifications of the GPIB-130.
• Appendix C, Cable Assembly Wire List, contains the listing of wire connections for the
GPIB-130 transmission cable.
• Appendix D, Multiline Interface Messages, contains an ASCII chart with a list of the
corresponding GPIB messages and hex values.
• Appendix E, Customer Communication, contains forms for you to complete to facilitate
communication with National Instruments concerning our products.
• The Glossary contains an alphabetical list and description of terms used in this manual,
including abbreviations, acronyms, metric prefixes, mnemonics, and symbols.
Conventions Used in This Manual
Throughout this manual, the following convention is used to distinguish elements of text:
italic Italic text denotes emphasis, a cross reference, or an introduction to a key
concept.
© National Instruments Corporation ix GPIB-130 User Manual
About This Manual
Related Documentation
The following document contains information that you may find helpful as you read this manual:
• ANSI/IEEE Standard 488.1-1987, IEEE Standard Digital Interface for Programmable
Instrumentation
Customer Communication
National Instruments wants to receive your comments on our products and manuals. We are
interested in the applications you develop with our products and we want to help if you have
problems with them. To make it easy for you to contact us, this manual contains comment and
configuration forms for to you complete. These forms are located in Appendix E, Customer
Communication, at the end of this manual.
GPIB-130 User Manual x © National Instruments Corporation
Chapter 1
Introduction
This chapter contains a description of the GPIB-130, lists the contents of your GPIB-130 kit, lists
optional equipment, and explains how to unpack the GPIB-130.
The GPIB-130 is a high-speed bus extender with the following features:
• It extends the maximum GPIB cable length to 300 m.
• It expands the GPIB to interface up to 28 devices.
• It performs high-speed parallel transmissions, with rates up to 900 kbytes/sec.
• It has a switch to select buffered transfers for high performance or normal GPIB transfers
with interlocked handshaking.
• It has a switch to select immediate parallel poll mode, for cable lengths of 60 m or less, or
stored parallel poll mode, for longer distances.
Description of the GPIB-130
The high-speed GPIB-130 bus extender (shown in Figure 1-1) is used in pairs with a special
parallel data transmission cable to connect two separate GPIB (IEEE 488) bus systems in a
functionally transparent manner.
Figure 1-1. The Model GPIB-130 Bus Extender
© National Instruments Corporation 1-1 GPIB-130 User Manual
Introduction Chapter 1
While the two bus systems are physically separate, as shown in Figure 1-2, devices logically
appear to be located on the same bus as shown in Figure 1-3.
RS-422 Compatible
Transmission
Lines
Computer
(System Controller,
Talker, and Listener)
GPIB-130 GPIB-130
Printer
(Listener)
Multimeter
(Talker and Listener)
GPIB #2GPIB #1
Unit Under Test
Figure 1-2. Typical GPIB-130 Extension System (Physical Configuration)
GPIB
Signal Generator
(Listener)
Computer
(System Controller,
Talker, and Listener)
Figure 1-3. Typical GPIB-130 Extension System (Logical Configuration)
GPIB-130 User Manual 1-2 © National Instruments Corporation
Printer
(Listener)
Multimeter
(Talker and Listener)
Unit Under Test
Signal Generator
(Listener)
Chapter 1 Introduction
With the GPIB-130, it is possible to overcome the following two configuration restrictions
imposed by ANSI/IEEE Standard 488.1-1987:
• A cable length limit of 20 m total per contiguous bus or 2 m times the number of devices on
the bus, whichever is smaller
• An electrical loading limit of 15 devices per contiguous bus
Each GPIB-130 system extends the distance limit by 300 m and the loading limit to 30 devices
(including the extenders), without sacrificing speed or performance. These point-to-point
extender systems can be connected in series for longer distances or in star patterns for additional
loading.
The maximum data transfer rate over the extension is 900 kbytes/sec. Furthermore, there is no
speed degradation at all for transfers between devices on the same side of the extension.
Because the GPIB-130 is a functionally transparent extender, the same GPIB communications
and control programs that work with an unextended system can work unmodified with an
extended system. There is one minor exception to this transparency in conducting parallel polls,
as explained in Chapter 3 in the section Parallel Poll Response (PPR) Modes.
What Your Kit Should Contain
Your GPIB-130 kit should contain the following components:
Kit Component Part Number
GPIB-130 Bus Extender 181460-01
One of the following power supplies:
• 100-120 VAC (5V-regulated, 700mA)
or
• 220-240 VAC (5V-regulated, 1A)
GPIB-130 User Manual 320391-01
181626-01
181626-31
© National Instruments Corporation 1-3 GPIB-130 User Manual
Introduction Chapter 1
Optional Equipment
Equipment Part Number
Transmission Cables:
(xxx
= length in meters)
• Type T5 (NEC CL2 rated) – up to 50 m
• Type T2 (NEC CL2 rated) – 0 m to 300 m
• Type T6 (NEC CL2P-Plenum rated) – 0 m to 300 m
Type X1 GPIB Cable (Single-Shielded)*:
•1 m
•2 m
•4 m
Type X2 GPIB Cable (Double-Shielded)*:
•1 m
•2 m
•4 m
* To meet FCC emission limits for this Class A device, you must use a shielded (Type X1
or X2) GPIB cable. Operating this equipment with a non-shielded cable may cause
interference to radio and television reception in commercial areas.
181563-xxx
178056-xxx
181564-xxx
763001-01
763001-02
763001-03
763061-01
763061-02
763061-03
Unpacking Your GPIB-130
Follow these steps when unpacking your GPIB-130.
1. Verify that the pieces contained in the package you received match the kit parts list given
earlier in this section.
2. Inspect the shipping container and contents for damage. If the container is damaged and the
damage appears to have been caused in shipment, file a claim with the carrier. If the
equipment is damaged, do not attempt to operate it. Contact National Instruments for
instructions. Retain the shipping material for possible inspection by carrier or reshipment of
the equipment.
GPIB-130 User Manual 1-4 © National Instruments Corporation
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