At Command Configuration; At Command Overview - Wiznet W7500S2E-R1 User Manual

6 AT command configuration

W7500S2E-R1 supports AT command configuration method. This method could only apply
when W7500S2E-R1 is in command mode. User needs to send the AT serial command
mentioned in this section, W7500S2E-R1 could be modified by requirement. User could use
serial terminal or MCU main board that connected with W7500S2E-R1 for applying these
configurations.

6.1 AT command overview

AT command is case insensitive. Except the "+++" command, all other commands are starting
with string "AT". These commands activate after received CRLF (Carriage-Return Line-Feed).
This means "\r\n" ("0x0d 0x0a" in HEX). These commands and related parameters are defined.
Sending wrong characters or sending in the inappropriate format will return an error.
AT commands have 4 types:
1. +++
Exit from data mode and changed to command mode.
2. Command without parameter
Format: AT+ <command>\r\n, No extra parameters or symbol after the command. For
example: AT+EXIT\r\n.
3. Query Command
Format: AT+<command>?\r\n, this kind of command is checking the command's
parameter value. In example: AT+ECHO?\r\n.
4. Commands with parameter
Format:
AT＋<command>=<parameter1>,<parameter2>,<parameter3>...\r\n
the command's parameter value.
Based on users AT command inputs, W7500S2E-R1 will reply related return value.
These values included correct and error message as showed on the following 6-1 table.
Return Value Type
Correct Input message
Wrong Input Message
W7500S2E-R1 user manual
Return Value
[Command] Value is: <value>\r\nook\r\n
Command Invalid\r\nERROR\r\n
<Error Info>\r\n
Password Error\r\nERROR\r\n
Table 6-1 AT command return value list
17
W7500S2E-R1 serial to Ethernet module
this will set
Meaning
Command execute correctly
Command Invalid
Invalid parameter input
Password Error