Latching the Output in LogixPro Simulator

 

This post is next step of the PLC programming for LogixPro Simulator  in which we are discussing Latching function which is vary useful.

By using latching function we can hold ON any load by just one click. as you can see under examples. 

Latching function by Boolean Algebra:

As we know 

A + B = Y -----I

Here A and B are inputs but Y is output and this is the function of OR logic.

let make a feed back loop on 2nd input B = Y 

Now the Equation will be 

A + Y = Y -----II

Initially Y = 0

Then we make high logic on A = 1 by any push button

Then resultant Y = 1 for ever as we discussed in previous post of Latching the Load by Boolean Algebra.

Latching function of LogixPro:

Its very simple just use one NO push button and use latching function as follows then its work like above Boolean latching function.

 Latching function Ladder logic

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Download LogixPro Ladder logic file:

Latching the Load