Other Operation Procedures
Controller
Client
data
data
send( )
send( )
recv( )
The Controller connects TCP connection to the port of the designated IP address and transmits data. Network equipment serves
as the TCP Server and waits for the connection from the Controller.
The flow when the communication connection is started is shown below.
The Controller transmits data to the TCP connection. The Controller does not perform the delivery confirmation of the application
level. Therefore, a response from network equipment is not needed. The Controller transmits data every second.
Every second
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Specification of Network Communication (Sequence)
Network equipment
(Server)
socket( )
Controller
(Client)
socket( )
bind( )
bind( )
Completion of connection
Network equipment
(Server)
recv( )
connect
connect( )
accept( )
listen( )