Recently, Sinopec Cangzhou Company 400,000 t/a reflux bed continuous catalytic reforming (CCR) unit successfully started up. This unit was transformed from semi-regenerative (SR) reforming to reflux bed CCR. The whole unit includes nearly 700 points measured in Safety Instrumented System (SIS), and nearly 100 points in Global Distribution System (GDS). SUPCON TCS-900 showed multiple advantages in investment cost saving and construction time reduction. This project represents the successful application of SUPCON TCS-900 system in refining units for high-end domestic and foreign industrial customers.