Problems of expression lookOut

Hello guys,.

I met a very strange situation today.  I created an expression in a file on the server which then be used for another calculation.  To be sure my expression was working fine, I dragged the expression of a Panel to see if I could get a number, and I did.  The strange thing is that expression was X out as if there was no link, but my number has been updated again.  I could see my number correctly changing from top to bottom, but the just X out.  I tried to restart the server is not available.  I guess LookOut could take the good parts and leave the bad output that resulted in the X.  However if something in my expression was wrong (such as typing errors), LookOut wouldn't even take it at all.  I tried to break this long term piece by piece, and every single one was working fine. What would be the problem here?

I tried to create an expression = Pot1.value + FieldPoint1.AI000.00.

The FieldPoint module does not exist. Then, I got an alarm on the FieldPoint1 object.

I saw the X on the expression, and when I decide to Pot1, the value of the expression changes.

So, it looks like the same behavior. Take a look at the expression, makes it read all the data object of the pilot?

Another way is to replace each part of the expression with a constant value one by one.

Tags: NI Software

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