IOT-WORKSHOP
DTU-H10X
Wi-Fi/Ethernet to RS485/RS232 Server User Manual
http://www.iotworkshop.com
39
For this remote management application, The device works as STA mode and connects to
Internet through wireless AP. Device configured as TCP Client and communicates with remote
TCP server at Internet. Device
‟s serial port connects to user device.
So, user device‟s data or sampling information can send to remote TCP server for storage or
processing. Also remote TCP server can send command to control and manage the user device
through the wireless network.
4.3.3.
Transparent Serial Port Application
For this transparent serial port application, two device connect as below figures to build up a
transparent serial port connection.
PLC Device
RS232/RS485
AP IP: 10.10.100.254
STA IP: 10.10.101.100
AP IP: 10.10.101.254
AP
STA
PLC Device
RS232/RS485
Figure 34.
Transparent Serial Port Application
For up side device, configured as AP mode and use default SSID and
IP address changed to
10.10.101.254
, network protocol configured as TCP/Server mode, and protocol port ID: 8899.
For down side device, configured as STA mode and setting the same SSID with up side device,
enable DHCP network and network protocol configured as TCP/Client mode, protocol port ID:
8899. Target IP address part setting the same IP address with up side device
(“10.10.101.254"
for this example).
When down side device boot up, it will find wireless AP and open TCP/Client network protocol to
connect with up side device
‟s TCP/Server. All these operation will be automatic and after finished,
the two user devices connected to device through serial port can communicate each other and
think the connection between them is fully transparent.
4.3.4.
Wireless Data Acquisition Card Application
For this wireless data acquisition card application, one PC works as data server and every data
acquisition card connects with a device to support wireless connection function.
