Compact controller

They are also known as panel mounted, discrete, dedicated, or universal process controllers.

For example, the program controller function is often used in the food industry, or in hardening to define specific temperature profiles.

The inputs for the actual value are often universal and can be configured for different types of sensors and signals.

Various binary switching elements are available as outputs, such as relay, semiconductor relay, logic and MosFET outputs, and are used either for controlling binary actuators or for control signals.

The connection between PC and controller can be established via USB, TCP / IP or serial interfaces.

Panel mounted controllers with integral hard displays. The process value (PV), and setvalue (SV) or setpoint are on the same scale for easy comparison. The controller output CO is shown as MV (Manipulated variable) range 0-100%
A control loop using a discrete controller. Field signals are process variable (PV) from the sensor, and control output to the valve (the Final Control Equipment - FCE). A valve positioner ensures correct valve operation.