- 27 -
Comm.
Mode
Protocol
Connection
Type
S/W
Modification
Parameter change
through the serial
port
Topology
T2S
TCP
Passive
Not needed
No
1:1
ATC
TCP
Active/Passive
Needed
Possible
1:1
COD
TCP
Active
Not needed
No
1:1
U2S
UDP
No connection
Not needed
No
N:M
TCP is a protocol that requires a connection process. Connection always takes place a
one-to-one basis. A host waiting for connection (passive connection) is called a server,
and one attempting to make a connection (active connection) is called a client.
On the other hand, UDP communicates by the block without the process of connection,
and thus allows multiple hosts to communicate simultaneously.
)
For detailed operation modes, refer to the next chapter.
