RT FIFO Read (G Dataflow)

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.

error in does not contain an error	error in contains an error
If no error occurred before the node runs, the node begins execution normally. If no error occurs while the node runs, it returns no error. If an error does occur while the node runs, it returns that error information as error out.	If an error occurred before the node runs, the node does not execute. Instead, it returns the error in value as error out.

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.

A Boolean that indicates whether the RT FIFO is empty when you read it.

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.

error in does not contain an error	error in contains an error
If no error occurred before the node runs, the node begins execution normally. If no error occurs while the node runs, it returns no error. If an error does occur while the node runs, it returns that error information as error out.	If an error occurred before the node runs, the node does not execute. Instead, it returns the error in value as error out.

Number of elements remaining in the RT FIFO after the read or write operation.