Revision as of 19:25, 21 January 2004 edit 207.70.141.194 (talk) No edit summary ← Previous edit		Revision as of 19:25, 21 January 2004 edit undo 207.70.141.194 (talk) No edit summary Next edit →
Line 31: 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. ~~penis~~

Programmable logic controller: Difference between revisions