Yes the AN-X2-GENI does support Ghost Mode, however it requires a valid station address on the GE Genius bus network.The main purpose of "Ghost Mode" is to enable the programming and debugging of a new ControlLogix or CompactLogix processor while the existing legacy processor is controlling the I/O. By using this risk is reduced since it is possible to compare the outputs of the existing processor to the outputs of new processor in the Logix based controller. (The outputs of the new processor are not transmitted on the GE Genius Bus Network while the gateway is running in "Ghost Mode".)