I have no chance to check this, but the LED on solenoid will not ON.
you can force the "OUTPUT" meaning the physical device located in the field either ON or OFF ... that will NOT (I repeat, NOT) change the status of the output bit/box located in the processor's tags ...
I've been bit by that in that a contact (XIC or XIO) of an outputs does not follow the forced state. It keeps the state determined by the logic (bit box).