
W7500S2E serial to Ethernet module
W7500S2E user manual
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by the value.
C1_LINK_P (TCP password authentication)
Command format
Parameters
Usage
AT+C1_LINK_P?
Nil
Read
AT+C1_LINK_P=<parameter>
0: Disable (Default)
1: Enable
Set
Response
[C1_LINK_P] Value is:<value>\r\nOK\r\n
Example
Command: AT+C1_LINK_P=1\r\n
Response: [C1_LINK_P] Value is:1\r\nOK\r\n
This command is valid only in TCP server mode & “data pass-through mode”.
When TCP password authentication is enabled, the module requires password input by the first packet
from the Ethernet port. If the password is wrong, it requires re-entering password until it receives a
correct password. Module password could be configured or query by the “PASS” command.
C1_LINK_T (Connection Condition)
Command format
Parameters
Usage
AT+C1_LINK_T?
Nil
Read
AT+C1_LINK_T=<parameter>
0: Connect when power on (default)
1: Connect when receiving data from serial
Set
Response
[C1_LINK_T] Value is:<value>\r\nOK\r\n
Example
Command: AT+C1_LINK_T=1\r\n
Response: [C1_LINK_T] Value is:1\r\nOK\r\n
This command is valid only in TCP client mode & “data pass-through mode”.
This is the timing for the module connecting to the TCP server. If it is 0, it will connect when power on.
If it is 1, the module will establish the connection establishment when receiving the first package of data
from the serial interface. When connection established, the data will be sent to the TCP server and
module would be in data pass-through mode.
C1_LINK_M (Send Hello Message)
Command format
Parameters
Usage
AT+C1_LINK_M?
Nil
Read
AT+C1_LINK_M=<parameter>
0: Disable (Default)
1: Send Device ID
2: Send MAC address
3: Send IP address
Set
Response
[C1_LINK_M] Value is:<value>\r\nOK\r\n
Example
Command: AT+C1_LINK_M=1\r\n
Response: [C1_LINK_M] Value is:1\r\nOK\r\n
This command is valid only in TCP client mode for both “data pass-through mode” & “AT data transfer
mode”. It will determine the first message to be sent right after connection established.