Real user programmable DDC controller. Full function for HVAC and BAS control. Very easy to learn and use. Opened protocols. GUIDE1.1 AW-PDDC2013 is a Direct Digital Control for HVAC(Heating,Ventilating,and Air Conditioning) and BAS(Building Autocontrol System),Factory Power Monitor.1.2 Industry local bus for network..1.3 Two way configure, keyboard or COMPUTER download, secondary program ...