How to implement a PID temperature control.

A PID temperature controller is implemented during the advanced programming of Siemens PLCs with TIA V16.  The system consists of a CPU 1214C DC / DC / DC firmware 40, and operator panel KTP400 comfort.  A temperature control loop is created in PI mode, acquiring a PT100 and setting a setpoint.

The system must reach the setpoint and keep the temperature constant by modulating a percentage output.

Note: best performance are obtained calling PID from OB30 cycle interrupt. cyclic intervention times are extrapolated from the reaction times of the specific machine.

Download full TIA V16, project->   PIDconHMI








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