Each complete horizontal line of a ladder logic program is generally referred to as a rung10/25/2023 For this purpose some of the conventions are adopted, when a programmer drawing a ladder diagram and these conventions are as follows To understand the ladder logic diagram we needs to know the about how does it works and perform operation. the rungs of the ladder, between these two verticals lines i.e. The complete circuits in ladder logic are connected with horizontal lines, i.e. The left most vertical line representing the power rails named as hot rail while the right most vertical line representing the neutral rail. The ladder diagram consists of two vertical lines these are as left most vertical line and right most vertical line. In Ladder programming language writing a program is equivalent to drawing a switching circuit in electronic. Ladder logic Diagram (LAD programming) is very commonly used method for the PLC Programming.
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