Product Function Description; Working Mode; Transparent Transmission Mode - Waveshare RS232/485 TO WIFI POE ETH (B) User Manual

RS232/485 TO WIFI POE ETH (B) User Manual
RS232/485 TO WIFI POE ETH (B) serial server to communicate with other devices, it requires a static
LAN IP address to be configured, such as the example address 192.168.1.10.
Figure Wired and Wireless Networking Application (Bridging):
6.

PRODUCT FUNCTION DESCRIPTION

6.1 WORKING MODE

RS232/485 TO WIFI POE ETH (B) has five working modes:

(1) Transparent transmission mode

(2) Serial Command Mode
(3) HTTPDClient mode
(4) ModbusTCP<=>ModbusRTU mode.
(5) AT Command Mode
Upon power-up, the serial server enters a pre-configure mode. By default, it enters transparent
transmission mode. Switching between modes (1) to (4) can be configured using the serial server's
built-in web page or the AT command AT+TMODE.
In modes (1), (2), (3), and (4), the serial port sends "+++" followed by "a". Once the serial server
receives these sequences, it sequentially responds with acknowledgment codes "a" and "+ok". This
indicates the transition into mode (5), the AT command mode. To return from AT command mode to
the original operational mode, the command AT+ENTM (with a carriage return) can be used.
Specific timing requirements for entering the AT command mode can be found in the "RS232/485 TO
WIFI POE ETH (B) AT Command Set" documentation.
6.1.1 TRANSPARENT TRANSMISSION MODE
RS232/485 TO WIFI POE ETH (B) supports the serial port transparent transmission mode. In this
mode, all the data that need to be sent and received are transparently transmitted between the serial
port and WIFI/ Ethernet, without any parsing, so as to realize the data transmission between universal
serial port devices and network devices.
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