Using the Siemens TIA Portal and function block diagram programming, I created an atmosphere control system that simulated an apple storage system. The program was integrated with a development board by Kaftan. The program checks for 4 input switches and sets a status flag to start the atmosphere control. The program then reads the temperature (external temperature sensor) and simulated o2/co2 levels (potentiometers). If faults are detected, for example the temperature rises, an alarm is triggered, activating the on-board buzzer and PWM controlled Motor.

This project involved;

• PLC Programming (FBD)
• PLC Hardware
• Sensors
• PWM Motor Control