You can designate which inputs and outputs are required, recommended, and optional to prevent users from forgetting to wire subVI connections. For terminal inputs, required means that the block diagram on which the subVI is dropped will be broken if the required inputs are not wired. Required is not available for terminal outputs. For terminal inputs and outputs, recommended means that the block diagram on which the subVI is dropped can be run if the input is not wired but the warnings dialog box will generate a warning that the input has not been wired. Optional means that the block diagram on which the subVI is dropped can be run and will not generate any warnings if the terminal input or output is not wired.
Complete the following steps to set a terminal to required, recommended, or optional.
![]() | Note You can connect only one control or indicator to a terminal. |