Ebyte 4G-02E, Руководство пользователя

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Chengdu Ebyte Electronic Technology Co.,Ltd
E840-DTU(4G-02E) User Manual
Copyright ©2012–2019
，
Chengdu Ebyte Electronic Technology Co.,Ltd
21
3. AT command
a) Command format
：
AT+<CMD>[op][ para1, para2, para3,…]<CR><LF>
AT+
：
command front end
CMD
：
control command
[op]
：
“=” indicates parameter configuration
“NULL”indicates parameters inquire
[para-n]
：
parameter list
<CR><LF>
：
CRLF
，
ASCII 0x0D 0x0A
b) Command error code
：
Error code Description
-1 Invalid command format
-2 Invalid command
-3 Invalid operator
-4 Invalid parameter
-5 Operation prevented
c) Commend set:
REBT restart module
VER inquire version No.
INFO inquire device info.
EXAT exit AT command mode
RESTORE restore to factory configuration
UART set/inquire UART parameter
UARTCLR set/inquire if UART buffer is cleared before module is connected
IMEI inquire IMEI
LINKSTA inquire SOCK connection status
LINKSTA1 inquire SOCK1 connection status
LINKSTA2 inquire SOCK2 connection status
LINKSTA3 inquire SOCK3 connection status
SOCK set/inquire SOCK parameter
SOCK1 set/inquire SOCK1 parameter
SOCK2 set/inquire SOCK2 parameter
SOCK3 set/inquire SOCK3 parameter
REGMOD set/inquire register packet mode
REGINFO
set/inquire self-defined registration info.
（
ASCII
）
REGINFONEW
set/inquire self-defined registration info (ASCII ,HEX
）
HEARTMOD set/inquire heartbeat packet mode
HEARTINFO
set/inquire self-defined heartbeat packet info.(ASCII
）
HEARTINFONEW
set/inquire heartbeat packet info.
（
ASCII, HEX
）
HEARTM set/inquire heartbeat packet time
SHORTM set/inquire short connection time