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A programmable controller is a control device that controls and regulates certain processes. Usually these are electronic devices from the communication and computer technology. Controllers are used in devices and systems with automatic control in various machines and devices from electronic technology, electrical engineering, the automotive industry, medical technology, instrument making, office equipment, remote controls, etc. They collect information from gauges and sensors, perform the specified processing on these input signals, then issue commands to actuators, relays, valves, actuators, etc. Inputs can include pushbutton switches, relays, displacement sensors, thermocouples, and RTDs. Outputs can include indicators, relays, servo motors, pulse motors and inverters. The programmable controller has the task of providing the operator with the ability to monitor and parameterize the machine’s actions – it provides data that a person can monitor on the so-called operator panels.
Indicators display, evaluate and calculate analog measured values. Universal inputs allow connection of current, voltage, RTDs and thermocouples. Circuit powered indicators require no power supply and can be used universally in current measurement circuits.
