Abstract
Lately, open networking technology in building environment and energy management system have been developed. The standard protocols such as BACnet, LonTalk and IPv6 are used for these systems. It allows obtaining various operation data of apparatus than before. With the advancement of computerization, this data accumulation has not only instigated in the field of construction but also in other fields. In order to utilize these data, soft computing methods such as Neural Network, Fuzzy theory and Genetic Algorithm have been applied recently. In this research, we proposed a new method of developing a dynamic simulation model for commissioning by using a Recurrent Neural Network and data from building environment and energy management system network.