Exception-Value
If a numeric value different from "0" is set for this property and the Notify style is set, an exception condition for the active screen is generated when the value of the Radio-Button control is modified.
 
Example - Define a radio button with an exception value to be evaluated on an exception paragraph
screen section.
...
  03 screen-1-rb-2 Radio-Button
     exception-value 4001
     line 20.6
     column 21.7
     size 10.9 cells 
     lines 5.4 cells 
     id 5
     title "Option 2"
     .