The advantage function in PLC is stepping sequence control, the efficiency method of establishment the stepping sequence control program is drawing out the function diagram.
步进顺序控制是可编程序控制器的优势功能，编制步进顺序控制程序的有效方法是画出功能表图。
In this paper, Advanced Program Control of PLC is described in distribution system for Petro-Chemical industry.
文章介绍了采用PLC(可编程控制器)技术对石化工业配电系统进行先进的程序控制。
Mitsubishi PLC control program, multiple threads of control, control for over-industry solution.
说明：三菱PLC控制程序，多线程控制，用于过业控制的解决方案。
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