Abstract

This chapter discusses the industrial process controllers. Industrial process controllers are used in chemical, mechanical, microelectronic, material, pharmaceutical, and electrochemical processes. They receive inputs from sensors, meters and so on, provide control functions, and deliver output control signals to controlled devices in plants or workshops. There are three generic types; PID controllers, batch controllers and servo controllers. Some industrial process controllers are printed-circuit boards that can be attached to an enclosure or plugged directly into a computer backplane. Others are designed to attach to a panel or bolt onto a chassis, wall, cabinet, or enclosure. Rack-mounted industrial process controllers include hardware such as rail guides, flanges, or tabs, and may fit a standard telecommunications rack. Bench-top or floor-standing units have a full casing or cabinet and an integral interface that includes either a digital front panel or analog components such as knobs, switchers, jumpers, or meters.

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