以金剛石合成機控制系統改造為例，提出了一種基于IPC 與PLC 相結合的DCS 控制系統。在系統設計中，采用了上位機與下位機獨立運行、以串行通信方式進行信息傳遞方法，并且引入了容錯技術，大大提高了系統的可靠性與穩定性。采用了面向對象技術和多線程技術，使得系統的維護和升級變得十分方便。半年多的運行表明：本控制系統大大提高了金剛石產品的控制精度和質量，減輕了操作人員的勞動強度，提高了管理的科學化水平。
關鍵詞：金剛石合成機；控制系統；IPC 與PLC 結合；串口
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Abstract: Taking the example of crystal control system, the article introduces a new DCS based on IPC and PLC. For adopting the operating computer and controlling computer independence running, the mode of information serial communication, the technique of permitting mistake is inducted to the software, the control system’s MTTF is prolonged consumedly. By using the OO technology and multithreading technology, the maintenance & upgrade is very easy and convenient. Half year’s running show: this system improves the control precision and the product of crystal, ease the employee’s work intensity, and advance the management.Key words: Machine of Crystal Synthesizing; Control System; Combination of IPC & PLC; serial communication