Cause : Units changeover: Reference parameter value invalid - comes when changing over the units to the referred representation type, it is not permissible for any of the required reference parameters to be equal to 0.0

Set the value of the reference parameter to a number different than 0.0.

See also: p0304, p0305, p0310, p0596, p2000, p2001, p2002, p2003, r2004