DESIGN OF PLC BASED TEMPERATURE CONTROL SYSTEM FOR FOOD STABILITY TEST CHAMBER

A stability test chamber simulates specific environmental conditions and tests a product or material in the manufacturing stage. The tested is then analyzed about its shelf-life estimation related to state durability of for certain period. main parameter that must control accurately temperature. Programmable Logic Controller (PLC) as an industrial computer system has been widely used. In this paper, temperature was designed based on PLC supervisory data acquisition (SCADA). SCADA would indirectly heater. feeded from sensor real-time inside chamber. Received value, compared set point. validation verification controlled were also investigated. miniaturized using commercial SCADA, Stepper motor, slide regulator, heater, PT100. point performed at 35 °C, 45 55 °C. result showed PT100 successfully had excellent response correction value high 0.6 °C with deviation 1 %.