Absfract
When PLC (Programmable Logic Controller) and microcomputer communicate in real-time system, the technique of real-time communication between PLC and microcomputer will he used in many areas. This paper research technique and solve the real-time communication problem between PLC and microcomputer. The usage of OMRON PLC and CH program language, and use the example of real-time communication between PLC and microcomputer in control protecting system of microwave transmitter to illuminate the basic means and technique in real-time system design and communicationsoftware design, including the core technique of real-time Communication. The practical using proves the validity and the value of this technology.


摘要
當(dāng)PLC（可編程邏輯控制器）和微機通信在實時系統(tǒng)中，實時通信技術(shù)將應(yīng)用于PLC與微機的許多領(lǐng)域。本文研究方法，解決了PLC與微機之間的實時通信問題。OMRON PLC 和C + +程序語言的使用， PLC與微機控制的實時通訊的范例?？刂票Ｗo微波的發(fā)射器系統(tǒng)來實現(xiàn)基本手段和實時通信系統(tǒng)的設(shè)計和軟件設(shè)計，包括實時通信的核心技術(shù)。該實際使用證明這種技術(shù)的有效性和價值。