The answers to your questions:
Is it possible to have 2 EC Interfaces in a single ctrlX DRIVE? (1 EC for MS2N motor, and 1 EC for the measuring encoder). --> This is foreseen in a coming hardware version for single axis drives (XCS, XMS) available around May 2023. Please address to your sales responsible to get more details. Mind: If using MS2N motors with ACUROlink encoder it is already by now possible to use this connected to XG20 and use the XG21 connection (EC interface) for the 2nd encoder.
Is it possible to use interface CtrlX Sense as a Motor encoder , and a EC interface for the measuring encoder? --> This is already possible as ctrlX SENSE of MS2S motor fits to the XG20 connection. Then as mentioned above the 2nd encoder (if measuring encoder doesn´t matter) can be connected to XG21 connection.
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