Implementation of a Temperature Control Process Trainer Through PID Controller Designed with Siemens S7-1200 PLC and HMI

This paper deals with the design of a temperature control process trainer interfaced with Siemens S7-1200 PLC and KTP-700 Basic HMI. The entire set-up comprises a temperature control trainer having an on–off controller as well as a PID controller mounted onto the instrumentation panel, a voltage to current converter which converts from 0–10 V to 4–20 mA, a temperature to voltage converter based on the RTD PT-100 sensor, PLC-based PID controller and HMI (Human Machine Interface). Initially, the efficiency, robustness, speed and effectiveness of the process control system are demonstrated via experimental results which are then compared with the simulation results.