Performance Evaluation of BACnet MS/TP Protocol Using Experimental Model

Abstract

Digital communication networks have become a core technology in advanced building automation systems. BACnet(Building Automation and Control networks) is a standard data communication protocol designed specifically for building automation and control systems. BACnet adopts Master-Slave/Token-Passing (MS/TP) protocol as one of its field level networks. In this study, we evaluate the performance of BACnet MS/TP protocol using experimental model. The network performance is investigated and evaluated in terms of token rotation time and service delay. Experimental results show that the performance of MS/TP network is heavily affected by the network configuration parameter called N max_info_frames.