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本文首先介绍了WIA技术和Modbus协议的基本原理和结构,然后详细介绍了互联过程中使用的两种方式:透明传输方式和协议转换方式。分析了两种方式的适用范围和改造难度,并给出了实现案例。
This article first introduces the basic principles and structure of the WIA technology and Modbus protocol, and then introduces in detail two methods used in the interconnection process: the transparent transmission method and the protocol conversion method. Analyzed the scope of the two methods and the difficulty of the transformation, and gives the realization of the case.