What is AT command and How to Use the AT Command?

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 and line feed . In Hex, is 0x0D is 0x0A.

3.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
E Query/Set AT command echo 
Z Restart the USR device
VER Query firmware version
ENTM Exit serial AT command mode and enter work mode
MAC Query MAC address
RELD Restore factory settings 
WANN  Query/Set WAN port parameters 
DNS Query/Set DNS address 
WEBU Query/Set settings web server username and password 
WEBPORT  Query/Set settings web server port number
SEARCH Query/Set search port and keyword in LAN
PLANG Query/Set default language of` web server
UART1 Query/Set serial port parameters
UARTTL1 Query/Set serial package time and length
SOCKA1 Query/Set socket A parameters
SOCKB1 Query/Set socket B parameters 
SOCKLKA1 Query socket A connection status
SOCKLKB1 Query socket B connection status
WEBSOCKPORT1 Query/Set serial port websocket port number
REGEN1 Query/Set serial port identity packet enable/disable
REGTCP1 Query/Set serial port Sending Method of identity packet
REGUSR1 Query/Set serial port User's identity packet data
REGCLOUD1 Query/Set serial port USR Cloud ID and password
HTPTP1 Query/Set serial port HTTP method
HTPURL1 Query/Set serial port URL
HTPHEAD1 Query/Set serial port HTTP header
HTPCHD1 Query/Set serial port filtering HTTP header of response data enabled/ disabled
HEARTEN1 Query/Set serial port heartbeat packet enabled/disabled
HEARTTP1 Query/Set serial port type of heartbeat packet
HEARTDT1 Query/Set serial port user’s heartbeat packet data
HEARTTM1 Query/Set serial port heartbeat packet interval time

Source: https://www.usriot.com/news/What-is-AT-command-and-How-to-Use-the-AT-Command.html

评论

发表评论

此博客中的热门博文

How to Configure Serial to WiFi and Ethernet Converter USR-W610？

图片
Question: 【What is the product model?】:Serial to WiFi and Ethernet Converter- USR-W610 【Where do you purchase the products?】: en.usr.cn 【What's the firmware version?(You can get firmware version from AT command AT+VER or settings webpage)】:7.03T.04 【How do you connect and configure the USR device?】: Via web page 【What's your application? What do you want to realize?】: I want to exchange some serial data which contain 2 protocol (modbus and custom protocol) between  1 PLC and 8 slave (plase see attachment). communication will use master-slave style just like use hardwire rs485, but this time...
阅读全文

How to Reset the Default Parameter of Industrial Router through the Webpage?

图片
How to Reset the Default Parameter of Industrial Router through the Webpage? Take USRIOT's industrial router  GW-R4513  as an example, You can restore factory parameter settings through web pages. the webpage of reset to default Click the button to restore the factory settings. This function is consistent with the Reload button function of the hardware. The use of Reload keys 1. Long press 5S above and then release, the router will restore the factory parameter settings automatically and restart automatically. 2. When the reboot takes effect, all the lights will be flashing 1 time and then destroyed. Related Products Industrial Wireless 4G LTE Router and RS485 to 4G modem GW-R4513
阅读全文

What is Industry 4.0?

图片
What is Industry 4.0? Industry 4.0 refers to the fourth industrial revolution. Industry 4.0 is a classification based on different stages of industrial development. Industry 1.0 is the era of the steam engine. Industry 2.0 is the electrification era. Industry 3.0 is the era of information, and industry 4.0 is the era of using information technology to promote industrial transformation - the era of intelligence. This concept first appeared in Germany and was officially launched at the Hanover industrial fair in 2013. The purpose of industry 4.0 is to improve the competitiveness of German industry and seize the opportunity in the new round of industrial revolution. Subsequently, the German government included it as one of the ten future projects proposed in the Germany 2020 high technology strategy. The project is funded by the federal education and research ministry and the federal ministry of economics and technology, with an estimated investment of 200 million euros. Its technica...
阅读全文