W5500S2E-S1 serial to Ethernet module
W5500S2E-S1 user manual
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6.2
Enter AT command Mode
W5500S2E-S1 has two modes, AT command mode and data mode. In AT command mode, user
could use serial terminal or through user’s MCU main board to configure the parameters of the
module. Command enter will return a value (In echo mode, it will show the serial message). In data
mode, all the commands except the “+++” would be ignored to the module. Thus, entering the “+++”
command will change the module into AT command mode.
Note: ”+++” command rules: It needs to send “+” symbol continuously in 3 times to through serial
interface to the module. This command requires 1 second gap each before and after this command
has entered to activate the correct response from W5500S2E-S1. If not, it will consider as user’s
data input. This command does not require CRLF (Carriage-Return Line-Feed)(\r\n). The factory
default setting of the module is in AT command mode.
6.3
AT command list
The following list is the AT command (case insensitive)list and related return value that supports by
WIZS2E module. The type “R” stands for read only. “R/W” means it could read and write. “< >” it
means mandatory parameter. “[ ]” it means optional parameters. AT commands are classified into
four categories: Basic commands, Control commands, device configuration commands and serial
configuration commands
6.3.1
System control command list
Features
Command
Terminal check
AT
Entering command mode
+++
Exit command mode
AT+EXIT
6.3.2
Control command list
Features
Command
Type
Max length
Parameters / Description
Echo
AT+ECHO
R/W
1
0: Close echo
1: Open echo (Default)
List of commands
AT+LIST
R
-
Queries only:
AT+LIST?
List of default / current values
AT+PRE
R
0
Queries only:
AT+PRE?
Factory reset
AT+DEFAULT
W
15
Required Password (Case sensitive)
Reset
AT+RESET
W
15
Required Password (Case sensitive)
Ethernet send counter
AT+NETSEND
R
0
Queries only:
AT+NETSEND?
Ethernet receive counter
AT+NETRCV
R
0
Queries only:
AT+NETRCV?
Device uptime
AT+RUNTIME
R
0
Queries only:
AT+RUNTIME?
Firmware version
AT+VER
R
0
Queries only:
AT+VER?
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