offer some advantages for instrument communication, they do have some of the drawbacks mentioned above and there is no clear choice of which bus, if any, will gain the widespread acceptance of GPIB. As a result, instrument manufacturers have been slow to make these buses available on their products. A viable alternative to native bus communication is through bus bridge products available on the market. These bridges allow you to convert from one bus type to another (e.g., convert from USB or Ethernet to GPIB or Serial).

Bus converters offer some great advantages for instrument control. They allow you to take advantage of some of the advanced capabilities of these new buses on your computer, while maintaining your investment in your programs. Good bridges should be software transparent allowing you to use, unchanged, applications written for plug-in boards of the same bus (i.e., a USB to GPIB converter and plug-in GPIB board).
You can control and communicate with bus bridges either through the NI-VISA API or the NI-488.2 interface natively in LabVIEW, LabWindows/CVI, Visual Basic 6.0, Visual Basic .NET, Visual C# .NET, and Visual C++.

Bus I/O Software
Bus bridges help the user ease their way into using new bus technology. However, the future holds the promise of test systems that integrate mature buses, some of the newer buses discussed earlier, as well as others that may come into play in the future. The key to integrating all of these buses seamlessly into one system is through the use of good software architectures and powerful software environments.

See Also:
NI-GPIB
Instrument Control

Instrument Driver Applicability

There are several different ways to control your instruments - you can e
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