The GMA 240 doesn't use a CAN bus interface to G3X Touch like the GMA 245 does.
It is best to never plug a GMA 240 into a rack wired with a CAN bus.
in the times when we have wanted to test a GMA 240 in a GMA 245 rack, we always remove the CAN bus wires before plugging the GMA 240 into the rack.
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