Internet Switch (EZI-10) Ver. 1.1
Sollae Systems Co., Ltd.
- 4 -
http://www.sollae.co.kr
2.1.2
Setting TCP/IP Parameters
To communicate on Modbus/TCP, a master and a slave should be connected on TCP. The
one which tries to make connection sending [SYN] segments is called TCP client and the
one which waiting connection request segments from clients is called TCP server. Usually, a
master is set to a TCP client. (Modbus / Active)
Figure 2-2 TCP/IP configuration of the master
① Set the TCP/IP parameters. (Set parameters referring to the below table)
Table 2-2 TCP/IP parameters
Parameter
Description
Value
Comm. Mode
TCP Active or Passive connection
Modbus / Active
Peer IP Address
Slave’s IP Address
10.1.0.2
Peer Port
Port number for communication
502
Master / Slave
Mode selection
Master
Poll Interval
Interval for sending queries
100 (1sec)
Unit ID
ID of a pairs of a master and a slave
1
Input Port Base Addr.
Input Port Base Address
0
Output Port Base Addr.
Output Port Base Address
8
② Click the [Write] button.
It is okay to set the master to TCP server (Modbus / Passive) if you need it.
