In this study, we have consulted the information of Pet Bottle Machine manufacturers and end users; Located in a limited number of Pet Bottle Blowing Machines in Turkey has been conducted on ovens. After the preform moves around its axis since it enters the machine and reaches the required heat by passing through the oven sections, bottles are obtained by giving 40 bar high pressure in the blowing unit. The quality of the obtained bottles is very important. The reason for this is that the labeling, filling and palletizing machines are also included in the continuation of Pet Bottle Blowing Machines. If the bottles are of poor quality, the entire line stops. The most important way to ensure that the bottles are produced in a robust manner is the efficient heating of the preforms, the raw material of the bottle. This study provided more efficient application of heat treatments of prefoms. In the heat treatment of the preform, to optimize the oven zone; PLC, HMI, temperature controls, thermal heat meter, thermocupl and thermal camera are used. The instantaneous temperature values obtained from the thermal heat meter, thermocupl and temperature controls are processed to the PLC as a reference and necessary adjustments are made available to the user via HMI. The reference values imported to PLC were developed using ST language in Codesys based software. In this study, instant values are shown on the panel. By using these data, heat optimization of infrared lamps in Pet Bottle Blow Molding Machines despite variable weather conditions is provided. The heat taken from the oven, the preform which is the raw material of the bottle, which has been optimized by the software, is observed with the thermal camera; The results were compared with the standard oven. In the context of the data obtained, it was observed that the software positively affected the preform and caused the production of bottles of better quality and cost-effective which are not affected by the changing climate conditions.