Abstract:Based on the traditional 1553B data bus protocol, a new protocol with plug and play features was designed by adding remote terminal EDS (electronic data sheet) and procedure of transferring EDS. According to this protocol, the plug and play resolution of 1553B bus controller was designed, including constructing a bus list algorithm with the remote terminals plug in,management data structure, and dynamic operation and control bus list method. The constructing bus list algorithm uses remote terminal EDS to analyze, calculate and transform an old bus list to a new one, to satisfy remote terminals′ communication requirements. A management data structure is used for analyzing and storing bus list information during initialization phase, to increase efficiency of operation control and data exchanging. Dynamic operation and control bus list method adopts main bus list with plug in messages method. The timeliness and use cases of the resolution were evaluated. The results show that its time of bus cycle and time of remote terminal plugged into the system can be accepted. The resolution can remain stable in the communication process, and provide flexibility for plug and play needs. In CCSDS-SOIS architecture, 1553B data bus is one of the subnetworks on the bottom layer. With plug and play features, it can be extended to support constructing plug and play system in higher layer.