5 posts in this topic

I am having a hard time on my first PLC project.  I cannot get any of the logic to count when I push buttons.  Any assistance will help.  M91-2- t1, I am sure that it is wired in correctly, as all of the other outputs work.

M90.U90

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I don't have an M90 handy to test your logic, but before anything else, break up your logic so that you only have 1 single network in each ladder rung.

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Hi,

First of all use positive transition when using the keys operands in order to get a single press. 

Can you specify what exactly is not working?

I noticed in the logic for example for key#1 that you are activating outputs according to the screen which is loaded. (I didn't see any counters)

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11 hours ago, barkergc1978 said:

So i need different blocks for the same output?

Absolutely not. You have two networks in each of ladder rungs 1, 2, 3, 8, & 9, and you have three in ladder rung 7.

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