The Shandong Changyi Petrochemical Co has improved its scale system and reached its automated data transmission goal by connecting the scale system, real-time database and the ERP system. The scale system is undergoing comprehensive testing and the testing for two sub-systems of the ERP has been completed, thanks to the concerted effort and cooperation of ERP, real-time database and scale system technicians. Information is automatically transmitted to the scale system via the PI Interfaces and intermediate database, from the purchase orders and delivery sheet at the SAP system, and is then be transmitted back to the SAP system. This means the data transmission, of the company’s three systems, is automated.