National Instruments GPIB-100A - Manual (Page 7)

© National Instruments Corporation vii GPIB-100A User Manual
Contents
Chapter 1
Description of the GPIB-100A
....................................................................................... 1-1
Introduction...................................................................................................................... 1-1
GPIB-100A Specifications .............................................................................................. 1-3
Chapter 2
Installation
............................................................................................................................. 2-1
Inspection......................................................................................................................... 2-1
Power Connection............................................................................................................ 2-1
Grounding Configuration................................................................................................. 2-2
Disassembly ........................................................................................................ 2-2
Mounting ......................................................................................................................... 2-2
Connecting to Hewlett-Packard Controllers..................................................................... 2-2
Chapter 3
Configuration and Operation
.......................................................................................... 3-1
Operating Modes ............................................................................................................. 3-1
Talker/Listener/Controller (TLC) Mode............................................................... 3-1
Talker/Listener (TL) Mode................................................................................... 3-2
Setting the Operating Mode ................................................................................. 3-2
Parallel Poll Response (PPR) Modes............................................................................... 3-2
Buffered PPR Mode (Approach 1)...................................................................... 3-3
Unbuffered PPR Mode (Approach 2).................................................................. 3-3
Mixed Mode Operation.................................................................................................... 3-4
Operating the GPIB-100A System.................................................................................. 3-4
Chapter 4
Theory of Operation
........................................................................................................... 4-1
Diagrams ......................................................................................................................... 4-1
Power-On ........................................................................................................................ 4-1
System Controller Detection............................................................................................ 4-2
Active Controller Detection.............................................................................................. 4-2
Source Handshake Detection ........................................................................................... 4-2
Parallel Polling..................................................................................................... 4-3
Data Direction Control......................................................................................... 4-4
EOI.................................................................................................................................. 4-4