DS3800HDRA1B1B GE

261A1812P012
261A1812P012 ITS
261A1812P013 ITS
261A181P013
267A8022P001
267A8870P012
267A8870P012

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描述

将继电器电路图转换成与原有功能相同的PLC内部的梯形图。这种等效转换是一种简便快捷的编程方法,其一,原继电控制系统经过长期使用和考验,已经被证明能完成系统要求的控制功能;其二,继电器电路图与PLC的梯形图在表示方法和分析方法上有很多相似之处,因此根据继电器电路图来设计梯形图简便快捷;其三,这种设计方法一般不需要改动控制面板,保持了原有系统的外部特性,操作人员不用改变长期形式的操作习惯。

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