Removes an element from the front of a queue and returns the element.
If the queue becomes invalid because the queue reference is released, then this node stops waiting and returns an error.
Transferring Data Between Loops Using Queue Nodes
A reference to a queue.
The number of milliseconds that the node waits for an element to become available in the queue if the queue is empty.
If an element becomes available in the queue during the wait, the node removes and returns the element and does not time out.
Default: -1 — The node never times out.
Error conditions that occur before this node runs.
The node responds to this input according to standard error behavior.
Standard Error Behavior
Many nodes provide an error in input and an error out output so that the node can respond to and communicate errors that occur while code is running. The value of error in specifies whether an error occurred before the node runs. Most nodes respond to values of error in in a standard, predictable way.
Default: No error
Reference to the queue.
A Boolean value that indicates whether an element became available in the queue before the node timed out or if an error occurred.
True | An element did not become available before the node timed out or this node generated an error. |
False | An element did become available before the node timed out or an error occurred before this node executed. |
The node produces this output according to standard error behavior.
This node can return the following error codes.
1122 | The reference became invalid while the node was waiting for it. |
Standard Error Behavior
Many nodes provide an error in input and an error out output so that the node can respond to and communicate errors that occur while code is running. The value of error in specifies whether an error occurred before the node runs. Most nodes respond to values of error in in a standard, predictable way.
Where This Node Can Run:
Desktop OS: Windows
FPGA: Not supported
Web Server: Supported in VIs that run in a web application