Optimization Design Based on Siemens PLC Control System in a Refining Furnace (Cound.)

A control system based on Siemens is designed according to processing requirements for finery control. The design scheme,to which the Siemens S7-400 PLC hardware and its programming software are applied,is given to detail the control system including PLC composing,PLC hardware configuration and program design. Using the S7-PLCSIM simulation function of STEP7 software,programs of the control system was debugged and monitored. Utilizing HMI operating system,the control system has shortened the production process,reduced the workload of staff and enhanced the ability of fault diagnosis and maintenance greatly.