how send ctlout using Max4Live

Hi! I’m using this patch that receive data from the Serial, this data are measures of a 2 ultrasonic sensors, and I can control a synth parameters in Ableton Live, At this way works perfectly. But I would like to use this path in Max 4 Live and this doen’t work. I want to use my “plugin” within Ableton Live, I think the problem are the “ctlout”. Any ideas?
Thanks!!