| 摘要 |
PURPOSE:To prevent the operability from being deteriorated by always monitoring an operating state of a central processor group by a communication controller and switching automatically a utilized central processor without compelling a terminal operator's operation when a stop state is detected. CONSTITUTION:In a communication controller 200 which is connected to plural central processors 201, 202, a control means for always monitoring a state of the central processors 201, 202 is provided. Also, a control means for storing a history of a message transaction corresponding to each terminal equipment 204 and sending out automatically the stored message transaction to an alternative central processor when a fault of the central processors 201, 202 has been generated is provided. In such a way, the utilized central processors 201, 202 can be switched automatically without compelling at all a user's operation of the terminal equipment 204. |
