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介绍了以S7 2 0 0系列PLC为核心来控制电石炉温度的控制方案 ,并着重给出了S7 2 0 0与PC的通讯、PLC中曲线的存储、多模式切换以及变周期控制的实现方法 ,为矿热炉生产过程控制提供了一条有效途径
The control scheme of controlling the temperature of calcium carbide furnace with S720 series PLC as the core is introduced, and the communication between S720 and PC, the storage of curve in PLC, multi-mode switching and the realization of variable cycle control , Which provides an effective way for the control of the production process in the submerged arc furnace