The system composition block diagram and program flow of charts are presented. After analyzing and processing the logical relationship of stochastic signal, the way of PLC program is put forward.
并给出了系统组成框图和程序流程图，在分析、处理随机信号逻辑关系的基础上，提出了PLC的编程方法。
The working principle of system is described in more detail through system composition, control circuit, hardware structure and software block diagram.
通过系统组成、控制电路、硬件结构及软件框图，对系统的工作原理作了较为详细地说明。
Mian components in the system are designed, block diagram of program drawn, method of program composition provided and particularly anti-interference measures taken into consideration.
设计了系统中的各主要部件，绘出了程序框图，指出了程序设计方法，考虑了抗干扰措施。
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