This instruction will close a socket session you have opened with SOCKET_open() function.
Examples
SOCKET_open(1,"10.0.0.1",23);// The session #1 is openedSOCKET_open(2,"10.0.0.2",23);// The session #2 is opened// Now we can communicate with devices...SOCKET_query(2,"help")SOCKET_query(1,"IP?")// TO close every WinSocket session...SOCKET_close(2);SOCKET_close(1);