【摘要】 基于可编程控制器的组成原理和工作原理 ,研究了可编程控制器的三种实现方式 :外挂式、虚拟式和嵌入式。结合各自实际应用情况 ,分析了每种方式的特点及发展更多还原

【Abstract】 Based on the constituting principle and working principle of Programming Logical Controller, this paper mainly studies three kinds of realization modes of PLC: external mode, virtual mode, embedded mode. The characteristics and developments of each mode are analyzed, combined with actual applications respectively.更多还原