Midi controller mystery

Can anyone advise how to get a dial to behave like this using when midi learn?:

I need a dial in Max to respond to incoming midi data coming from an external midi controller - I just want the dial to recognise whether the incoming cc data value is increasing or decreasing (I think this is cc96 and cc97). I don't need the incremental values to 127.

I have done this myself in another program (Traktor) using a BCR2000 and Midi learn. I assign a knob to the jogwheel in Traktor, and even though the readout on the BCR says 127 or 0, I can continue rotating the knob and the software will continue responding.

The Max dial behaves as I want with the mouse OK (ie the dial behaves as an endless rotary knob) and also using Touch OSC is fine too, but when using a midi controller knob the max dial will only make one full rotaion (127). I need it to just recognise the direction the controller knob is turned so the dial will behave accordingly as an endless rotary dial.

Any help appreciated