Three Changyi Petrochemical operations and maintenance department employees received training in CENTUM CS3000 hardware and software at the Yokagawa LCS Xi’an center, July 8 to 20, with all of them passing an online test and obtaining a Yokogawa DCS certificate. The training was organized by the CIO, Li Runhai, and conducted by a senior Yokogawa DCS teacher. It consisted of a CS3000 introduction, configurations, and online practical operations, covering general makeup, HIS configuration, FSC makeup, flow charts, and reports. Each trainee benefited a lot from the training in understanding CS3000 DCS. It also improved their ability to deal with malfunctions and maintenance of the DCS, which will help the steady operations of the unit.