| 摘要 |
An interdevice communication monitoring unit 62 - 1 calculates a variable timeout time (T 2 -T) by subtracting an elapsed time T from a predetermined fixed timeout time T 2 for monitoring an intermodule communication to monitor an elapsed time of an intermodule communication. The fixed timeout time T 2 is a time shorter than a predetermined interface connection check time T 1 for monitoring an interface connection with a channel. When the elapsed time T of the intermodule communication exceeds the variable timeout time (T 2- T), the interdevice communication monitoring unit requests a channel to separate the interface connection, and then when an end response is obtained from a control module, requests the channel for an interface reconnection and then transmits an end response.
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