详细阐述了该系统的硬件结构及软件组成以及PLC的具体配置，该系统的具体通信方式及下位机软件的编程思想及方框流程。
Introduces the detail hardware structure, software configuration, the concrete PLC configuration and communication mode, the PLC programming method and diagram flow of the distributing system.
BPM流程与语言编写的普通程序不同的第二个方面是，BPM流程都把方框、箭头等图形化表示作为目标。
The second aspect where BPM processes differ from plain programs in languages is that BPM processes are aimed to be represented graphically with boxes and arrows.
文中列举了各种数学模型、控制系统程序流程图和方框图。
Mathematical models, systematic program flow charts and block diagrams of control systems are listed.
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