Feature request -- expression based left rail instruction

[Controls Guy]

I'd like to request adding an expression-based box for contact area use, similar to MATH but power-flow oriented rather than assignment-oriented.    The box would allow power flow on some condition of evaluation.   Allow only expressions that can evaluate true/false, or any non zero answer is true, etc.   For the second option, might have to allow a Window of Truth for float comparisons.

[BobO]

I'd like to request adding an expression-based box for contact area use, similar to MATH but power-flow oriented rather than assignment-oriented.    The box would allow power flow on some condition of evaluation.   Allow only expressions that can evaluate true/false, or any non zero answer is true, etc.   For the second option, might have to allow a Window of Truth for float comparisons.

Expression contact is already done and will be in the next release. Probably not everything you are asking for, but should help.

[Controls Guy]

Sweet!  Whatever it is, I want it!   

[PLCwannabe]

What is an expression contact?

[franji1]

What is an expression contact?

Think a relational contact on steroids.  Each side of the relational contact is a full math expression.  If you want an optional result to be stored for each side, you can do that too.

Oh, and like MATH, you can have full expressions for array indexes, so
R[D0 * D1 + V1] * PI() >= Profile[V0 * 5 / 2].Radius
is a valid relational contact

[Garyhlucas]

A coworker has left our company to work for a company that uses AB.  It will be interesting to see how she views AB after using the BRX.  I worked with AB for 12 years.  I do NOT miss it!

[Controls Guy]

Some stuff they get so right and some stuff equally far to the opposite extreme.