Appendix A
HMI Function Reference
©
National Instruments Corporation
A-39
Engine Launch
Use the Engine Launch VI to launch the BridgeVIEW Engine programmatically. Normally
the BridgeVIEW Engine is launched automatically when you execute any of the VIs that
access the Real-Time Database. Use this VI if you want to control when the Engine is
launched explicitly.
If configuration file to use is unwired, BridgeVIEW automatically uses the last
configuration file you viewed or edited. Use launch engine to control whether the Engine is
launched.
The outputs indicate whether the Engine is running already and which configuration file is
being used. These outputs are valid only if launch engine is TRUE.
configuration file to use specifies exactly which Tag Configuration file
the BridgeVIEW Engine should use. You must provide the complete path
to the configuration file. If unwired, the last configuration you viewed or
edited is used.
launch engine determines whether to launch the BridgeVIEW Engine,
provided that it is not already running. If FALSE, the VI does nothing. If
unwired, this input is TRUE by default. You can wire this input if you do
or do not want to launch the Engine based on logic in your program.
configuration file in use indicates which BridgeVIEW configuration file
is currently in use.
already launched indicates whether the BridgeVIEW Engine was
launched already when this VI was called. If so, the BridgeVIEW Engine
is left undisturbed and this VI returns which configuration file is being
used.
shutdown indicates that the BridgeVIEW Engine is shutting down. In this
case, calling this VI does nothing.
