Abstract: This system adopt DCS, that is distributed control system.Compared with the other control system, it enhances operation, monitoring and comprehensive operating screens.These operation screens can be opened by only one touch.There is BASIC inside.It has the function of printing out, communication with host computer, self-diagnostics. Analog signal can be pretreated by internal instrument, including be operated, compensated, checked for alarm, ect..Digital control can be programmed by sequence sheet, in witch just filled Y or N according to requirement.The sequence control tasks are performed by executing the sequence sheet.