Does anyone know if the older A970GOT-TBA HMI is capable of a something similar to a "Transparent" operation mode to allow an attached P.C. to monitor and/or edit the attached PLC program. The HMI is fitted with a A9GT-RS4 RS-422 interface unit connected to an FX2N-64-ES/UL. I have seen that you can install a software option via GT-Works2 Version 2, for a "Ladder Monitor Function".