Reads the oldest element in an RT FIFO.
If no new data exists in the RT FIFO or if the RT FIFO is empty, this node waits for the amount of time specified in timeout in ms for new data. If the value of timeout in ms expires, the node returns the value wired to element in the element out output and returns True in the empty? output.
References an existing RT FIFO.
Sets the default return value of an empty RT FIFO. This data type changes to match the type of the default return value you wire.
Time, in milliseconds, that the node waits to receive a new value if the RT FIFO is empty. Wire a -1 to the timeout in ms input to wait indefinitely.
Default: 0
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
A reference to the RT FIFO defined in rt fifo.
The data read from the RT FIFO. If the node does not read new data, the node returns the default element.
Error information.
The node produces this output 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.
Number of elements remaining in the RT FIFO after the read or write operation.
Where This Node Can Run:
Desktop OS: Windows
FPGA: Not supported
Web Server: Not supported in VIs that run in a web application