National Instruments GPIB-100A - Manuals

© National Instruments Corporation v i i GPIB-100A User Manual Contents Chapter 1Description of the GPIB-100A ....................................................................................... 1-1 Introduction.........................................................................................

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) ........................ 1-2 Figure...

© National Instruments Corporation 1-1 GPIB-100A User Manual Chapter 1Description of the GPIB-100A Introduction The high-speed GPIB-100A Bus Extender (Figure 1-1) is used in pairs with a special parallel datatransmission cable to connect two separate GPIB or IEEE-488 bus systems in a functionallytra...

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, operating, electrical,environmental, and physical characteristics of the GPIB-100A, as well as providing a...

© National Instruments Corporation 2-1 GPIB-100A User Manual Chapter 2Installation Inspection Inspect the shipping container and contents for evidence of physical damage or stress. If damageis discovered and appears to have been caused in shipment, file a claim with the carrier. If theequipment is d...

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 apower source, this cable connects the equipment chassis to the power ground. The GPIB-100A is shipped ...

© National Instruments Corporation 3-1 GPIB-100A User Manual Chapter 3Configuration and Operation Users who are unfamiliar with the GPIB should first read Appendix A, Operation of the GPIB, tobecome familiar with GPIB terminology and protocol. In the following discussions, the terms local and remote...

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 onlymode. Usually, there is just one Listener as well. In the TL mode, the System...

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 theextension, the two GPIB-100A units can be set to Unbuffered and Buffered PPR modesacco...

© National Instruments Corporation 4-1 GPIB-100A User Manual Chapter 4Theory of Operation Diagrams Figure 4-1 shows a block diagram for the GPIB-100A. Refer to Appendix B for GPIB-100Aschematic diagrams and Appendix C for the GPIB-100A parts locator diagram. Figure 4-1. GPIB-100A Block Diagram Power...

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 LocalSystem Controller (LSC) signals. When Interface Clear (IFC) is received from the local side vi...

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). • During a paralle...

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 afterthey propagate to the remote side, BUS PP is also unasserted. This causes FF U36D to be clearedas well, terminating t...

© National Instruments Corporation A-1 GPIB-100A User Manual Appendix AOperation of the GPIB History of the GPIB The GPIB is a link, bus, or interface system through which interconnected electronic devicescommunicate. Hewlett-Packard invented the GPIB, which they call the HP-IB, to connect andcontro...

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 abetter analogy is to the switching center of a city telephone system. The switching center (Controller) monitors ...

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. DIO1*DIO2*DIO3*DIO4* EOI* DAV* NRFD* NDAC* IFC* SRQ*ATN* SHIELD DIO5*DIO6*DIO7*DIO8*R E N *GND (TW PAIR W/DAV*)GND (TW PAIR W/N...

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 alldevices when receiving commands and by Listeners when receiving data messages. DAV (dat...

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 cablewith both a plug and receptacle at each end. This design allows devices...

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 betweendevices and the number of devices on the bus is limited. The following restricti...

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 Msg H e x Oct D e c ASCII Msg 00 000 0 NUL 20 040 32 S P MLA0 01 001 1 SOH GTL 21 041 33 ! MLA1 02 002 2 STX 22 042 34 " MLA2 03 003 3 E...

User Comment Form National Instruments encourages you to comment on the documentation supplied with ourproducts. 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, clar...