Definition of programmable logic controller
Issue Time:2017-04-28

A programmable logic controller (PLC), or programmable controller is an industrial digital computer which has been ruggedised and adapted for the control of manufacturing processes, such as assembly lines, or robotic devices, or any activity that requires high reliability control and ease of programming and process fault diagnosis.

They were first developed in the automobile industry to provide flexible, ruggedised and easily programmable controllers to replace hard-wired relays and timers. Since then they have been widely adopted as high-reliability automation controllers suitable for harsh environments. A PLC is an example of a "hard" real-time system since output results must be produced in response to input conditions within a limited time, otherwise unintended operation will result.



sweep yards
subscribe
Please enter your email address for our mailing list to keep your self our lastest updated.
Contact Person
leave a message:
Contact Now
Address:
10 Building, E Area, Software Park, Fuzhou, Fujian
Google+