A common error with Case structures is neglecting to complete the wiring in all the cases. When you wire to an object outside the structure, a bad tunnel results if you do not connect a source in all the cases. This is a variation of the no source error because at least one case does not show a data value if executed.
![]() |
Note You also can right-click the output tunnel and select Use Default If Unwired from the shortcut menu to use the default value for the tunnel data type for all unwired tunnels. |