Programmable logic controller: Difference between revisions

Revision as of 22:30, 27 November 2003

Revision as of 19:25, 21 January 2004

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PLCs may need to interact with people for the purpose of configuration, alarm reporting or everyday control. A variety of methods are employed.

A simple system may use buttons and lights to interact with the user. Text displays are available as well as graphical touch screens. Some PLCs may only communicate over a network to some other system, such as a computer running a web browser. I crapped my pants