Determines whether a configuration data refnum is valid.
This node considers a configuration data refnum to be invalid if you do not open the reference with the Open Config Data node, the file referenced does not exist, or the reference is already closed when passed to this node.
Reference to the configuration data.
Where This Node Can Run:
Desktop OS: Windows
FPGA: This product does not support FPGA devices
Web Server: Not supported in VIs that run in a web application