從以上討論可以得出，由于PLC采用"串行"工作方式，所以即使是同一元件，在梯形圖中所處的位置不同，其工作狀態(tài)也會有所不同，901B-2555-A庫存現(xiàn)貨

901B-2555-A庫存現(xiàn)貨

因此在利用梯形圖進行控制程序編制時，應對控制任務進行充分分析，合理安排各編程元件的位置，才能夠更為準確地實現(xiàn)控制。

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