| 摘要 |
PURPOSE:To easily detect route change by a slave station and to attain recovery processing by sending a code of route information pattern used by a master station periodically to the slave station. CONSTITUTION:A master station 0 sends a code of route information used at present periodically to slave stations 1-5. The slave station 1-5 collate the route information code received fro, the station 0 with the code used by its own station and when they are coincident, the communication is continued by using the route information. If dissidence is detected consecutively three times, it is discriminated that route information is changed and the route information code of its own station is sent to the master station 0. When the code received from the slave stations 1-5 is not coincident with the route information set by the master station 0, the route information pattern set by the station 0 is sent to the stations 1-5. The stations 1-5 change the information into the route information pattern received from the master station 0 and make communication by using new route information.
|
