Cannot assign located variable to the Unity Momentum IO

Goals and Symptoms
Cannot assign located variable to the Unity Momentum IO

Facts and Change
Unity Momentum 171CBU*****

Causes and Fixes
Located variables cannot be assigned to the Momentum IO as in Concept. 

Typically, the hardware configuration information is stored in %KW words for the Unity PLC's.  Due to the hardware
limitation, the use of %KW words is not allowed for the Momentum PLC.  As a result, Unity is forced to use reserved
%MW words for the module configuration information.  The %MW words used for the configuartion are intentionally
locked out to prevent the user from changing the values.  This also locks out the  the use of a %MW assignment for the IO.