Registers events for use with an Event Structure. The events that you can register depend on the type of the reference you wire to each event source input.
Reference to an existing event registration that a Register For Events node created.
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 a user event or device event, such as a DAQ event. The reference you wire to this input must be to a local object. You cannot wire a reference to an object on a remote computer or other hardware.
Reference to the new or modified event registration. Wire this output to another Event node that accepts event registration refnums, such as an Event Structure or Register For Events node.
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.
With dynamic events, you can design an application to make programmatic changes to elements in the VI and the VI generates events for these changes. Use the Register for Events node to perform event registration for dynamic events.
You can dynamically modify event registration by wiring the event registration refnum output of one Register for Events node to the event registration refnum input of a second Register for Events node. In this configuration, the second Register for Events node inherits the event sources from the first Register for Events node. The following caveats apply to the Register for Events node when you wire its event registration refnum input:
Where This Node Can Run:
Desktop OS: Windows
FPGA: Not supported
Web Server: Supported in VIs that run in a web application