الفهرس | Only 14 pages are availabe for public view |
Abstract A study on controlling a process by digital computer which is widely used for many applications nowadays the reasons behind this are the appearance of small general purpose digital computers the increasing numbers of controlled variables and their interdependencies in a modern complex Plant the improvements in technology of semi conductor integrated circuits and the ways of data transmission have made control by computers feasible and reliable it is conclude that it is accepted that good operator console depends greatly on the controlled process the operator console could be built using hard wiring of medium and large scale integrated chips with the resulting increase in reliability as compared to the use of discrete elements standard interfacting methods like camac could be evaluated for operator console machine interfacing. |