Trigger valve when count reaches 30

[solomoneli]

I'm trying to setup a function where an output will turn on when an input is trigger 30 times.  

so the basis is: A valve will open up once a switch is triggered 30 times.  

Thanks for the help. 

[Flex727]

Use the input to increment a counter with a preset of 30. Use the counter to trigger the output. Search on Counters in the Help file to understand how to use them.

Alternatively, use the input to increment an MI. When the MI = 30, trigger the output.

[Joe Tauser]

It's always good to try your hand at writing logic and then post your code with questions.  Often we can make some tweaks to make it work.

 

Joe T.

[solomoneli]

 

Here's what I have so far.  It didn't work so I don't think I'm doing this correctly. That's a compare function.   I didn't notice a counter going up.  

[Flex727]

You need an increment function in addition to the compare function - something like this:

You will also need some logic to turn off O3 at some point.

[solomoneli]

I don't think the U90 ladder has an increment function, at least not one I can locate.  Is there an alternative method?  Also I am going to put it on a timer once it's on.  I do know how to do that.

Thanks for you help. 

[Flex727]

Sorry, I lost track of which forum I was in. I don't think U90 has the Reset Numeric function either.

Increment just means "add 1".

[solomoneli]

thank you!  worked perfectly.