Static variable in Formula Node

[splee]

Hi,

How do I declare and use a static int variable in a formula node?

[danil33]

Hi splee,

               You can look at Formulat node Syntax

[splee]

Thanks but I can't find the "static" construct

[danil33]

Hi Splee,

               Control values are static if they are not wired to the connector pane, so you can write to them using a local variable

[P@Anand]

Hi Splee,

What you want to do and what do you mean by Static int variable? please explain your scenario

[splee]

Basically I am using LabVIEW as a VI for my Vision Builder Automatic Inspection. VBAI is updating the Vi with : update_count. The update can happen anytime.

In the LV vi I want to keep track of how many times the update_count has happened. So it should start with 0, then 1, 2, 3, 4,..

I want to implement this using formula node..

[splee]

.. and to make it more complicated, I want to be able to reset update_count if certain condition happens

[splee]

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@danil33 wrote:

Hi Splee,

               Control values are static if they are not wired to the connector pane, so you can write to them using a local variable

---

Don't quite understand this.. can give just a very simple snippet?

[P@Anand]

Am not sure about the VBAI you mentioned but For updating the count don't you think shift register in a while loop and a case structure is sufficient?. Try to implement that way its very simple.

[splee]

OK this is my code snippet, without using formula node.

I do not know how to:

- reset the feedback node in the first sequence to 0, if a certain event happens

- reset the feedback node in the second sequence to 0, if a certain event happens.

Thats why I thought of using formula node, and forget all the arrays and feedback node stuff... but I don't know how to use a static variable