Patent ID: 7058019

Claim:
A method of transmitting data between compact control stations using the Ethernet, comprising: a network matching unit generation steps of separately generating the function of a network matching unit of each compact control station according to a data transmission function and a data reception function; a data reception step of, when the network matching unit of one of the compact control stations is generated to have the data reception function at the network matching unit generation step, receiving operation maintenance data from the network matching unit of the other compact control station through TCP/IP communication using the Ethernet; and a data transmission step, when the network matching unit of one of the compact control stations is generated to have the data transmission function at the network matching unit generation step, transmitting control data and the operation maintenance data to the network matching unit of the other compact control station through TCP/IP communication using the Ethernet, wherein data transmission in the compact control station providing the operator interface function is carried out through a transmission requesting message reception step of, when the network matching unit of the compact control station providing the operator interface function is generated according to the data transmission function at the network matching unit generation step, receiving a message requesting for transmission of maintenance data from an inner message queue of the compact control station, a connection state confirmation step of confirming if the compact control stations are connected with each other, a maintenance data transmission step of sequentially transmitting control data and the maintenance data to the network matching unit of the compact control station providing no operator interface function when it is confirmed that the two compact control stations are connected with each other, and a data deletion and informing step of deleting the maintenance data and informing an operator of disconnection state between the compact control stations when it is confirmed that the two compact control stations are not connected to each other.