Dequeue a teststand queue with labview

[Oriol.Bofill]

Hello,

I'm trying to dequeue elements since a VI that is running in a Thread independent of the mainsequence (Teststand).

I :

1.- Create a Queue.

2.- Launch the VI in a new trhead (Is a states machine controlated by the queue ).

3.- Now in TESTStand mainsequence i will like enqueue elements to give orders at VI. Any idea how to do this?

egards,

Oriol

[Rodéric]

In TestStand you call a VI that is a wrapper for Enqueue FIFO element. (FGV so you have the FIFO reference in a shift register)

[Oriol.Bofill]

Using queues only with labview The "Dequeue" function is in standby waiting 2 possible events:

1.- Element to dequeue in the queue --> Return the queue element.

2.- The queue is closed --> Return Error.

Using a "Reference Object" I don't find how to do this.

[Oriol.Bofill]

Thxs roderic,

The problem is in the labview part.... I don't find a easy way to do the dequeue.

Regards

Oriol

[Rodéric]

Hi,

First, the best way is to enqueue a close message so you know it has to close.

Second, it returns an error when the queue ref is destroyed =>you just need to handle the error! Maybe the easiest way would be to add a failure post step action to your step (in TestStand) and do whatever exit code you need to perform!

BR,