Set Coil Issue

[vpotanka]

Hi,

I have an issue with Unilogics Set Coil. It won't stay high even when I have no other instances of the tag in the program. I thought it was just the display being glitchy so I added a counter to verify. It deenergizes then reenergizes with every cycle. I've attached a very simple program for you to see the issue.

This is pretty serious. How am I supposed to write a basic program?

Thanks.

[Flex727]

Moved to the UniLogic Software forum.

3 hours ago, vpotanka said:

It deenergizes then reenergizes with every cycle.

What do you mean by this?

[Fernando Castro]

1 hour ago, vpotanka said:

Hi,

I have an issue with Unilogics Set Coil. It won't stay high even when I have no other instances of the tag in the program. I thought it was just the display being glitchy so I added a counter to verify. It deenergizes then reenergizes with every cycle. I've attached a very simple program for you to see the issue.

This is pretty serious. How am I supposed to write a basic program?

Thanks.

just to clarify, on this screenshot rung 2 its continuously counting...

I believe that you intended to count only if FirstScanBit changes from false to true. In that case the correct logic is to use a positive transition contact:

 

------|p|--------[Add]-----

[Gabriel Franco]

Maybe the funtion where you have this code, is not being called anywhere.

[Joe Tauser]

I assure you the Set Bit works.  If you want to upload your program we can have a closer look.

On an unrelated and irrelevant personal note, I totally love the name of your company - 

 

Your logo matches the radio I have on my desk:

 

Is there an antique radio fan in your organization?

 

Joe T.

 

 

[Flex727]

By the way, @vpotanka, there is a first scan bit built into UniLogic. It's called "Ladder Initial Cycle" and can be found in the system "General" struct.