介绍加热炉的过程控制，以西门子S7-300PLC作为控制器，以WinCC软件为平台开发监控系统。搭建Profibus-DP网络，能够及时监控系统的运行并做出反馈。%The process control of furnace is introduced. Siemens $7-300 PLC is used as main controller. WinCC software is used as the platform to develop the monitor system. The Profibus-DP network is deployed. The operation condition of the system could be monitored and the response could be made in time.
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