Have set up my texecom with 2 entry/exit zones. 1 is front door which I have 2 pirs set on guard access as they can just see you when arming/disarming which works ok.Problem I have is when I arm the system and then enter via back door (entry exit zone 2 ) the alarm goes off when the same 2 PIR's see me even though they are on guard access.Is there something else I have to setup as well.any advice please