I'm trying to make a rudder trim indicator. I have found the offset 2EC0 and can see the raw value changing in the FS2PHIDGETS edit page, I can scale the value to be in the range of -200 to 200 and can save it.

When I go to assign it to an LCD display or servo it shows only on or off when the rudder trim is moved from the center position rather then showing a changing scale.

Does anyone know what I'm doing wrong? Any help would be great.