USR IOT USR-K3 - 1 What Is the at Command; 2 How to Use the at Command; How to Enter at Command Mode; 3 AT Command Set

USR-K3 AT Command Set www.usriot.com
Jinan USR IOT Technology Limited 4 / 21 h.usriot.com
1.What is the AT command.
AT command is used for controlling module. You can use AT command to configure and query the settings.
2.How to use the AT command
For USR device is in transparent mode normally, you must enter AT command mode at first. Then you can
send AT command to configure or query the settings. After you configure the USR device, you should restart
the USR device to make the settings take effect. Every time module restart will work in work mode rather AT
command mode.
Every AT command must add character carriage return <CR> and line feed <LF>. In Hex, <CR> is 0x0D
<LF> is 0x0A.
2.1.How to enter AT command mode
Please read this FAQ about entering AT command mode.
http://www.usriot.com/enter-serial-command-mode/
3.AT command set
Command
Function
Management Command
ENTM
Exit serial AT command mode and enter work mode
Z
Reset the module
RELD
Restore default settings
E
Query/Set AT command echo function enable/disable
System Command
VER
Query firmware version
MID
Query/Set module name
MAC
Query module MAC address
USERMAC
Set user editable MAC address
PDTIME
Query production data
WANN
Query/Set module WAN interface parameters
DNS
Query/Set DNS address
SEARCH
Query/Set searching port and keyword in LAN
RSTIM
Query/Set timeout reset time
CFGTF
Saving current settings as default settings