you wont be able to link them in that way. I do what your trying to do with beams and external sensors at home. It also controls my heating modes (ie away etc) based on set status also using ifttt. I get app notifications when armed and chime when disarmed But i dont use pyronix anything. Its HKC which is a pro installer only panel. You could get similar with more available kit, ie the spc or dimension but it wont be a simple programming job