Ebyte E840-DTU User Manual

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

Ebyte E840-DTU Specifications

General

Brand	Ebyte
Model	E840-DTU
Category	Modem
Language	English