i want to create a counter that save and add each power value (energy meter ) vi attached

[rihhs]

hello guys as you can see in the VI i want to create a counter that save and add each power value (for an energy meter project )so anyone help please 

[Artem.SPb · Accepted solution]

use shift register

[jwscs]

also it would be good to look into producer-consumer design-pattern,

and using the Event Structure for your GUI.

[rihhs]

how it can help ??

[jwscs]

producer-consumer design pattern separates data acquisition from presenting/acting-on the data. it is like a template of good software architecture for this kind of problem.

the event structure can be used for reacting on GUI events like clicking a button, as well as acting on self created user events (this works like a queue, where the event structure can react on messages).

this helps to make it clear where and what you do in regards to user interaction.

[pincpanter]

The benefits of choosing an appropriate software architecture may not be evident when a project is in its early stages.

However, it helps a lot later, when (very usually) it's needed to add more functionalities and features.

[jwscs]

a very simple example:

NOTE: this is a snippet. if you save the .png on your computer, you can then drag+drop it onto a block diagram (directly drag+dropping from the image in the forum does not work anymore unfortunately)