原创 有关GPIB

The GPIB interface is IEEE 488.1 and IEEE 488.2 compliant.

Introduction
The GPIB bus was invented by Hewlett Packard at the end of the 1960's. The intention was to create a reliable bus system especially designed for connecting computers and instruments.
This networked system has all features that are required to create a measurement system. Remote control of instruments is one aspect of these features, but there are other more important features like data handshake for reliable operation and real-time response capability, only to name a few.

History
The original bus system, designed by Hewlett Packard (today the Test & measurement's division's name is Agilent Technologies), was called HPIB, a short form for Hewlett Packard Interface Bus.
Because of its success and proven reliability, in 1973 the HPIB bus became an american standard, introduced by the IEEE. Since then, the name has been GPIB, for General Purpose Interface Bus. The standard's number is IEEE488.1 .

In parallel, the International Electronic Commission (IEC), responsible for the international standardization outside the U.S., approved the standard and called it IEC625.1. Due to introduction of a new naming scheme for all standards, it was renamed to IEC60625.1 later.

There was a slight difference between the IEEE488.1 and IEC625.1: The IEC625.1 standard used a 25 pole DSUB connector for the bus, the IEEE488.1 standard favored a Centronics-like 24 pole connector. Today, the 24 pole connector is always used, but there are also adaptors available in case older instruments are equipped with a 25 pole DSUB connector.