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Web embedded field devices

By the end of 2002, it is estimated that there will be more than 42 million devices connected to the Internet. Better and simpler software development tools along with cheaper electronics make it possible to embed web interfaces into small and inexpensive microprocessor based field devices. Embedding a web server in a field instrument or sensor, allows users to access these devices from anywhere in the world utilizing a standard Internet Browser. This eliminates the need for proprietary or dedicated control software. In addition, such interfaces allow manufacturers access to their products after they are shipped; simplifying maintenance, diagnostics, and in-place firmware upgrades. This paper describes some of the issues related to web embedded field devices and the development of such devices.