WIZ110SR WIZnet, WIZ110SR Datasheet - Page 12

• Manufacturer Part Number: WIZ110SR
• Description: Ethernet Modules BOARD TYPE SERIAL-ENET MOD
• Manufacturer: WIZnet

Specifications of WIZ110SR

• Rohs: yes
• Product: Serial to Ethernet Modules
• Interface Type: RS-232
• Operating Supply Voltage: 5 V
• Maximum Operating Temperature: + 70 C
• Dimensions: 75 mm x 45 mm
• Minimum Operating Temperature: 0 C

TCP Server mode can be useful when the monitoring center tries to connect to the device
(where WIZ110SR is installed) in order to check the status or provide the commands. In
normal time WIZ110SR is on the waiting status, and if there is any connection request (SYN)
from the
monitoring
center,
the
connection
is
established(ESTABLISH), and
data
communication is processed (Data Transaction). Finally connection is closed (FIN).
In order to operate this mode, Local IP, Subnet, Gateway Address and Local Port Number
should be configured first.
As illustrated in the above figure, data transmission proceeds as follows,
1. The host connects to the WIZ110SR which is configured as TCP Server mode.
2. As the connection is established, data can be transmitted in both directions – from the host
to the WIZ110SR, and from the WIZ110SR to the host
<TCP client mode>
Figure 5. TCP Client mode
If WIZ110SR is set as TCP Client, it tries to establish connection to the server.
To operate this mode, Local IP, Subnet, Gateway Address, Server IP, and Server port number
should be set. If server IP had domain name, use DNS function.
In TCP Client mode, WIZ110SR can actively establish a TCP connection to a host computer
when power is supplied.
As illustrated in the above figure, data transmission proceeds as follows:
1. As power is supplied, WIZ110SR board operating as TCP client mode actively establishes a
connection to the server.
2. If the connection is complete, data can be transmitted in both directions – from the host to
the WIZ110SR and from WIZ110SR to the host
Copyright © WIZnet All Rights Reserved
WIZ110SR | 12 page