Design and Implementation of MS/TP in Embedded System

BACnet (building automation and control networks) is a standard data communication protocol for building automation and control systems. BACnet adopts master-slave/token-passing (MS/TP) as one of its local area networking options. The MS/TP protocol is designed specifically for building automation and control systems. In this paper, it firstly explains BACnet and MS/TP protocol, and then proposes a design and implementation of MS/TP in embedded system. The performance of MS/TP protocol is evaluated using experimental model. Experimental results show the values of network parameter that influence the performance of MS/TP network and that should be selected properly when designing and operating BACnet systems according to the network configuration and message distribution in MS/TP network.