An
instance of this Function Block type provides a single-selection
set of radio buttons.
- The button labels are taken from the comma-separated list
in the
LABELS input.
- The number of buttons is the number of labels, minus any
trailing blank label fields.
- The zero-based number of the initially selected button is
given by the
IN input.
- Subsequent occurrences of
INIT+ will delete
the existing buttons, and replace them with a new set of buttons
specified by the LABELS input and a new selection
specified by the INinput.
- An
INIT- primitive will set the QO
and OUT values to false and 0,
respectively, and will delete all the buttons, which can be
restored by a subsequent INIT+.
TEST PROCEDURE:
- Enter data for the input variables,for instance:
| QI |
LABELS |
IN |
| true |
A,B,C |
1 |
- Initialize the FB by clicking on the
INIT
event input.
- You can then observe the effect of clicking on one of the
radio buttons.
- You can also observe the effect of subsequent
INIT+
and INIT- events with different input values.
|