National Instruments GPIB-PRL User Manual

GPIB-PRL
User Manual
MicroGPIB
®
IEEE 488 to Parallel Interface
November 1993 Edition
Part Number 320090-01
All Rights Reserved
National Instruments Corporate Headquarters
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
Branch Offices:
Australia 03 879 9422, Austria 0662 435986, Belgium 02 757 00 20, Canada (Ontario) 519 622 9310, Canada (Québec) 514 694 8521, Denmark 45 76 26 00, Finland 90 527 2321, France 1 48 65 33 70, Germany 089 714 50 93, Italy 02 48301892, Japan 03 3788 1921, Netherlands 01720 45761, Norway 03 846866, Spain 91 640 0085, Sweden 08 730 49 70, Switzerland 056 27 00 20, U.K. 0635 523545
Limited Warranty
The GPIB-PRL 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
. CUSTOMER'S RIGHT TO RECOVER DAMAGES
CAUSED BY FAULT OR NEGLIGENCE ON THE PART OF
NATIONAL
INSTRUMENTS SHALL BE LIMITED TO THE AMOUNT THERETOFORE
PAID BY THE CUSTOMER
. 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. This limitation of the
liability of National Instruments will apply regardless of the form of action, 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.
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
MicroGPIB® is a trademark of National Instruments Corporation. 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.
© National Instruments Corp. vii GPIB-PRL User Manual
Contents
About This Manual............................................................................ ix
Organization of This Manual....................................................... ix
Conventions Used in This Manual............................................... x
Related Documentation................................................................ x
Customer Communication ........................................................... x
Chapter 1 Description of the GPIB-PRL
....................................................... 1-1
Introduction.................................................................................. 1-1
What Your Kit Contains .............................................................. 1-2
Optional Equipment..................................................................... 1-3
GPIB-PRL Specifications ............................................................ 1-3
The GPIB-PRL Front Panel......................................................... 1-4
The GPIB-PRL Rear Panel .......................................................... 1-6
The Parallel Connector ................................................................ 1-7
The GPIB Connector.................................................................... 1-8
Chapter 2 Installation and Operation
............................................................. 2-1
Installation.................................................................................... 2-2
Step 1. Inspection ........................................................ 2-2
Step 2. Verify the Voltage Requirement ..................... 2-2
Step 3. Configure the Operating Parameters............... 2-3
Set Configuration Switches............................. 2-4
Default Settings............................................... 2-4
Step 4. Connect the Cables.......................................... 2-7
Step 5. Power on the Unit............................................ 2-7
Operation...................................................................................... 2-7
Chapter 3 Technical Information
...................................................................... 3-1
G Mode Operation ....................................................................... 3-1
G Mode Parallel Interface ............................................................ 3-3
P Mode Operation ........................................................................ 3-4
P Mode Parallel Interface............................................................. 3-6
Contents
GPIB-PRL User Manual viii © National Instruments Corp.
Appendix Customer Communication
.............................................................. A-1
Glossary.................................................................................................. G-1
Figures
Figure 1-1.The GPIB-PRL...................................................................... 1-1
Figure 1-2.The GPIB-PRL Front Panel.................................................. 1-4
Figure 1-3.The GPIB-PRL Rear Panel................................................... 1-6
Figure 1-4.The Parallel Connector and Signal Designations.................. 1-7
Figure 1-5.The GPIB Connector and Signal Designations.................... 1-8
Figure 2-1.Example of P Mode System Setup........................................ 2-1
Figure 2-2.Example of G Mode System Setup....................................... 2-1
Figure 2-3.Factory Default Settings ....................................................... 2-4
Figure 3-1.G Mode Parallel Interface Timing........................................ 3-4
Figure 3-2.P Mode Parallel Interface Timing......................................... 3-7
Tables
Table 1-1. Electrical Characteristics...................................................... 1-3
Table 1-2. Environmental Characteristics.............................................. 1-4
Table 1-3. Physical Characteristics........................................................ 1-4
Table 1-4. LED Descriptions.................................................................. 1-5
Table 2-1. Configuration Parameters for Switch 1................................ 2-4
Table 2-2. Configuration Parameters for Switches 2 and 3................... 2-5
Table 2-3. Configuration Parameters for Switches 4 through 8............. 2-6
© National Instruments Corp. ix GPIB-PRL User Manual
About This Manual
Introduction to the GPIB-PRL
The GPIB-PRL 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.
Organization of This Manual
This manual is organized as follows:
Chapter 1, Description of the GPIB-PRL, contains general information about the National Instruments GPIB-PRL and lists components and accessories. Environmental, electrical, and physical specifications are also provided.
Chapter 2, Installation and Operation, describes the procedures for configuring and operating the GPIB-PRL.
Chapter 3, Technical Information, contains a more detailed description of the operation of the GPIB-PRL. The timing characteristics of the parallel port are provided in this section.
The appendix, Customer Communication, contains forms you can use to request help from National Instruments or to comment on our products and manuals.
The Glossary contains an alphabetical list and a description of terms used in this manual, including abbreviations, acronyms, metric prefixes, mnemonics, and symbols.
About This Manual
GPIB-PRL 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.
Abbreviations, acronyms, metric prefixes, mnemonics, symbols, and terms are listed in the Glossary.
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 you to complete. These forms are in the appendix, Customer Communication, at the end of this manual.
© National Instruments Corp. 1-1 GPIB-PRL User Manual
Chapter 1 Description of the GPIB-PRL
This chapter contains general information about the National Instruments GPIB-PRL and lists components and accessories. Environmental, electrical, and physical specifications are also provided.
Introduction
The GPIB-PRL, shown in Figure 1-1, provides a method of connecting a device with a Centronics-type interface port to the IEEE 488 (GPIB) bus. The GPIB-PRL allows transparent conversion of data between the two ports so that control codes or special commands are not required. The GPIB-PRL also increases the efficiency of the interface system by isolating the slower device from the faster port with a 256 KB character buffer. This buffer is used to offload the host computer during printer and plotter applications.
Figure 1-1. The GPIB-PRL
Description of the GPIB-PRL Chapter 1
GPIB-PRL User Manual 1-2 © National Instruments Corp.
The GPIB-PRL is capable of providing data conversion in either direction; that is, it can be used to interface GPIB plotters and printers to a computer with a Centronics-type output port or to add a standard Centronics-type printer to a GPIB network.
Although the GPIB-PRL is designed to be used with a device which adheres to the Centronics interface standard, it can also be used with other devices which use a unidirectional parallel 8-bit bus similar in nature to the Centronics specification. Since the GPIB is also a parallel bus, to avoid confusion the Centronics-type interface port is referred to as the parallel port and the GPIB port is referred to as the GPIB or IEEE 488 throughout the manual.
What Your Kit Contains
Your kit should contain the following components:
Component Part Number
One of the following boxes:
GPIB-PRL (256K RAM - 115 VAC) 776177-02
GPIB-PRL (256K RAM - 230 VAC) 776177-32 GPIB-PRL User Manual 320090-01
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