LS Industrial Systems XGB Series - TCP;UDP User Define Frame Server

Chapter 7 P2P Service
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7.5.2 TCP/UDP user define frame server
Client
Time
①
SYN
Time
②
SYN ACK
③
ACK
④
PUSH ACK
PUSH ACK
⑥
ACK
⑦
FIN ACK
⑧
ACK
⑨
RST
Server
Transmission port : n >1024
Destination port : user’s
assignment
Connection
Disconnection
Connection
Disconnection
User define frame
(Client)
User define frame
(Server)
Transmission port : n >1024
Destination port : usr’s
assignment
●
●
●
[Fig. 7-34] TCP user define frame server
(1) TCP user define frame server provides a function receiving the registered frame as the receiving block to the user’s
assigned port.
(2) In case of ‘ SYN① -> SYN ACK② -> ACK③ (Connection)-> the registered frame in reception block ‘s received from client’,
TCP user define frame treats the block.
(3) TCP user define frame does not receive if the port or frame type is different.
(4) In case of receiving registered frame in reception block to the block, UDP user frame server does receive.