| 摘要 |
<p>PROBLEM TO BE SOLVED: To facilitate changing of network configuration by eliminating the need for maintaining/managing a communication route control table at a connection station which is a relay station when a massage is transferred from the connecting station which is a start point station to the connecting station which is an end point station, related to a control system comprising a plurality of networks and a plurality of connecting stations connected to the plurality of networks. SOLUTION: The start point station transmits a massage 80 comprising communication route information 81-83 in which network numbers and station numbers of connecting station numbers of connecting station communication connecting devices passing from the start point station to the end point station are described in the order of passage, and a passage flag 85 which is a transit information of the communication route. A relay station receiving the massage 80 extracts the next relay station or the end point station from the communication route information 81-83 contained in the massage 80. The relay station updates a passage flag 851 in the massage 80 and, after a station number of the current relay station is taken as an addresser station number 87, transmits the massage to the next relay station or the end point station.</p> |
