The Building Automation System is an intelligent technology that is a centralized system for analyzing and managing the entire plant in one building. It controls the most important parameters that determine the environment in the building without causing discomfort to the employees in the building. Through the building automation system, parameters such as temperature, humidity, carbon dioxide, etc. are monitored. In addition to the VF parameters, parameters from low-current systems can also be monitored by linking an event to one system and then responding to another. The main direction of the system is energy saving and reduction of the maintenance costs of a building.