| 摘要 |
<p>A local communication system comprises a plurality of stations exchanging control messages via a ring network. One of which stations is designated a master station with the other stations designated as slave stations. Each of the slave stations has the capability to implement an autonomous process to find and store for future use its own unique address within a set of allowable addresses. Each slave station is arranged only to begin said autonomous process to seek its own address when individually instructed by a command from the master station to do so. In the embodiment disclosed, the master station addresses such commands using a physical address related to ring position. Slave stations are regarded as installed if they retain a unique address already from a previous start-up. Installed stations are exempt from performing said autonomous process, and merely confirm that their address is still unique.</p> |
