Hello Sam, there is no limitation of max. connections on PC side. This means you can connect your 3 axis in parallel when they are reachable at same time. (try i.e. to ping all axes) Because you are using MPx20 firmware version, it is also possible do the communication via single connection to the CCD master device. Therefore use the structure ealConnection.Motion.Axes[1] for slave 1. Regards, Christoph
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