IOT DTU-H10X, Руководство пользователя

Страница: 42 / 79

IOT-WORKSHOP
DTU-H10X Wi-Fi/Ethernet to RS485/RS232 Server User Manual
http://www.iotworkshop.com
- 42 -
1. When user input “+++" (No “Enter" key required), the UART port will display feedback information
“a", and not display input information"+++" as above UART display.
2. Any other input or wrong step to UART port will cause the device still works as original mode
(transparent transmission).
5.2. AT+ Instruction Set Overview
User can input AT+ Instruction through hyper terminal or other serial debug terminal, also can program
the AT+ Instruction to script.
User can also input “AT+H" to list all AT+ Instruction and description to
start.
Figure 38. "AT+H" Instruction for Help
5.2.1. Instruction Syntax Format
AT+Instruction protocol is based on the instruction of ASCII command style, the description of syntax
format as follow.

Format Description

< > : Means the parts must be included

[ ] : Means the optional part

Command Message
AT+<CMD>[op][para-1,para-2,para-3,para-4
…]<CR>

AT+: Prefix of command message;

CMD: Command string;

[op]: Symbol of command operator,
 “=" : The command requires parameters input;