Programmeeritav loogikakontroller, kõnekeeles tihti ka lihtsalt kontroller, on spetsiaalne arvuti, mida kasutatakse masinate ja protsesside juhtimiseks varem koostatud programmi järgi.
A programmable logic controller (PLC) or programmable controller is an industrial computer that has been ruggedized and adapted for the control of manufacturing processes, such as assembly lines, machines, robotic devices, or any activity that requires high reliability, ease of programming, and process fault diagnosis.
