A protocol converter can solve the problem of communication between heterogeneous and distributed com-puter networks. This paper proposes a novel approach to construct a converter for these protocols. This approach in-cludes following steps:getting reduced protocol model by merging states and shielding insignificant message; con-structing protocol converter by reduced protocols; dividing merged states and getting a protocol converter. This ap-proach can improve computational complexity.
分析PLC在解决复杂控制问题时的难题,介绍信号解释Petri网(Signal Interpreter Petri Net,SIPN),用SIPN对一个PLC控制系统进行建模,并用SIPN工具(SIPN Editor)对这个模型进行可视化分析。最后根据这个模型,采用模块化方法,提出自动生成PLC的IL程序的方法。
