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继电器采用等电位释放并引出两个控制端,对继电器实行双端控制。用这种方法建立的顺控器,称之为“双端控制”有触点顺序控制器。这种顺控器,其继电器的两个控制端上,分别接受并联形式的输入信号;借助于二极管——矩阵,完成“或”、“与”、“非”基本逻辑运算。而且仍然保留继电器具有的独立记忆能力。采用“双端控制”方法,用N个继电器就能够建立具有N个程序的顺控器,而且结构简单,使用灵活。程序的转换方式(步进或条件式)可随意使用;子程序的划分亦无任何限制;任一程序均可使其保持记忆到需要解除之时。多个顺控器可串联使用,而且其中任一程序均可和其它顺控器发生联系。
Equipotential release relay and leads to the two control terminals, the implementation of double-ended relay control. The sequencer built in this way is called a “double-ended control” with a contact sequence controller. This kind of sequencer, the relay’s two control terminals, respectively, to accept the parallel form of the input signal; by means of diode - matrix, to complete the “or”, “and”, “non” basic logic operations. And still retain the relay has the independent memory. Using the “double-ended control” method, N relays can be used to establish a sequencer with N programs, and the structure is simple and flexible to use. Program conversion (step or conditional) are free to use; there is no limitation on the division of subroutines; either program can keep them in memory until they need to be released. Multiple sequencers can be used in series, and any program can be linked to other sequencers.