| 摘要 |
PURPOSE: A control method for stabilizing the connection-release is provided to prevent the performance degradation of the main controller due to the rebooting command of the main controller or the error operation of the sub controllers in case that the exchange data and control signals using TCP/IP is performed between a plurality of sub controllers and the main controller. CONSTITUTION: First, data exchange is performed by connecting a main controller and sub controllers through client/server, a reset command is transmitted from a client to a server. Then, an operating system of the client requests the connection release from the operating system of the server, which then responds to the connection release request. Next, the applied program of the server calls a connection termination command to transmit a connection termination signal to the operating system of the client, which responds to the connection termination signal.
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