| 摘要 |
PROBLEM TO BE SOLVED: To provide an instrumentation control system which simply and reliably prevents unreliable information from being propagated continuously within a closed loop between controllers when asynchronously transferring data between the controllers connected to each other via a network. SOLUTION: A specific controller 1a of the respective controllers 1a and 1b outputs a reliable reset command for resetting unreliable information within the other controller 1b to the network 3 over a fixed period, and resets unreliable information within the controller 1a. On the other hand, the other controller 1b, when receiving the command for resets the unreliable information via the network 3, stops the external input of the unreliable information to the controller 1b over a fixed period and resets the unreliable information within the controller 1b. COPYRIGHT: (C)2009,JPO&INPIT |
