CSE-H25 User
’
s Manual Ver. 1.2
Sollae Systems Co., Ltd.
- 28 -
http://www.sollae.co.kr
5
Communication Mode
5.1
Introduction
Normal communication mode is suitable for the purpose of using CSE-H25. Normal
communication mode can be classified into four modes – T2S, ATC, COD, and U2S – each
of which is described in the following table.
Table 5-1 Communication Mode
Communic
ation
Mode
Protocol Connection
Need for user
Equipment Software
Modification
Configuring
environmental
variable via serial
port
Topolo
gy
T2S
TCP
Passive
Not needed
Impossible
1:1
ATC
TCP
Active
Passive
Needed
Possible
1:1
COD
TCP
Active
Not needed
Impossible
1:1
U2S
UDP
No
Connection
Not needed
Impossible
N:M
TCP protocol requires connection process. The connection is always established as 1:1
connection. At this time, the host waiting for connection (passive connection) is called a
server and the one attempting to connect (active connection) is called a client.
On the other hand, UDP communicates by block unit without connection process. As
UDP does not require connection, numbers of hosts can communicate at the same time.
