National Instruments GPIB-COM - page 3

Limited Warranty

The GPIB-COM is warranted against defects in materials and workmanship for a period of two

years from date of shipment. National Instruments will repair or replace equipment which proves

to be defective during the warranty period. This warranty includes parts and labor. A Return

Material Authorization (RMA) number must be obtained from National Instruments before any

equipment is returned for repair. Faults caused by misuse are not covered under the warranty.

During the warranty period, the owner may return failed parts to National Instruments for repair.

National Instruments will pay the shipping costs of returning the part to the owner. All items

returned to National Instruments for repair must be clearly marked on the outside of the package

with an RMA number.

No other warranty is expressed or implied. National Instruments shall not be liable for

consequential damages. Contact National Instruments for more information.

Important Notice

The material in this manual is subject to change without notice. National Instruments assumes no

responsibility for errors which may appear in this manual. National Instruments makes no

commitment to update, nor to keep current, the information contained in this document.

Copyright

Under the copyright laws, this manual may not be copied, photocopied, reproduced, translated, in

whole or in part, without the prior written consent of National Instruments Corporation.

Trademark

IBM is a registered trademark of International Business Machines Corporation.

Contents

Main Page Page FCC/DOC Radio Frequency Interference Compliance Preface Introduction to the GPIB-COM Organization of This Manual Related Documents Abbreviations Used in This Manual Contents Page Figures Tables Section One Introduction GPIB-COM Characteristics What Your Kit Should Contain Optional Equipment Page Page Switch and Jumper Settings Base I/O Address and Interrupt Selection Talk/Listen Modes Talk/Listen Address and Special Function Selection Page Installation Special Considerations When Using the GPIB-COM filename Page Function Description Section Three GPIB-COM User Manual 3-2 National Instruments Corporation Figure 3-1 shows a block diagram of the GPIB-COM. GPIB Figure 3-1. Block Diagram of GPIB-COM GPIB-COM Components Page Section Four Running Diagnostic Tests The GPIB-COM Test Commands -1 printer test -2 plotter test -c change COM configuration -q quit Section Five Programming the GPIB-COM The GPIB-COM Registers Transmitter Holding Register Receive Buffer Register Divisor Latch Least Significant Byte (LSB) Register Divisor Latch Most Significant Byte (MSB) Register Interrupt Enable Register Page Interrupt Identification Register Line Control Register Page Modem Control Register Page Line Status Register Page Modem Status Register Page Programming the Serial Adapter Polling Method Interrupt-Driven Method The GPIB-COM Controller Function Appendix A Specifications Page Multiline Interface Messages Hex Oct Dec ASCII Msg Hex Oct Dec ASCII Msg Message Definitions Multiline Interface Messages Hex Oct Dec ASCII Msg Hex Oct Dec ASCII Msg Appendix C Operation of the GPIB History of the GPIB Types of Messages Talkers, Listeners, and Controllers System Controller and Active Controller GPIB Signals Appendix C Operation of the GPIB National Instruments Corporation C-3 GPIB-COM User Manual Figure C-1 shows the arrangement of these signals on the GPIB cable connector. Data Lines Handshake Lines NRFD (not ready for data) NDAC (not data accepted) Page Page Page Configuration Restrictions User Comment Form