Ebyte E840-DTU User Manual page 23

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Parameter：
AT+SOCK
Function：
Format： inquire
transmit：AT+SOCK<CR>
return：<CR><LF>+OK=<protocol>,<ip>,< port ><CR><LF>
configure
transmit：AT+SOCK=<protocol>,<ip>,< port ><CR>
return：<CR><LF>+OK<CR><LF>
Parameter： protocol
Ip The IP address or domain name of the target server when the module is set to "CLIENT"
Port The port number of the server, in decimal, less than 65535.
AT+SOCK1
Function：
Format： inquire
transmit：AT+SOCK1<CR>
return：<CR><LF>+OK=<EN>,<protocol>,<ip>,< port ><CR><LF>
configure
transmit：AT+SOCK1=<EN>,<protocol>,<ip>,< port ><CR>
return：<CR><LF>+OK<CR><LF>
Parameter：
Ip The IP address or domain name of the target server when the module is set to "CLIENT"
Port The port number of the server, in decimal, less than 65535.
AT+SOCK2
Function：
Format： inquire
transmit：AT+SOCK2<CR>
return：<CR><LF>+OK=<EN>,<protocol>,<ip>,< port ><CR><LF>
configure
transmi：AT+SOCK2=<EN>,<protocol>,<ip>,< port ><CR>
return：<CR><LF>+OK<CR><LF>
Parameter：
Ip The IP address or domain name of the target server when the module is set to "CLIENT"
Port The port number of the server, in decimal, less than 65535.
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Sta whether establish TCP connection，Connect(TCP connection)/ Disconnect(TCP cut off)
Set/query the network protocol parameter format.
protocol type， TCPC / UDPC
TCPC corresponding TCP client
UDPC corresponding UDP client
Set/query the network protocol parameter format.
EN enable 0：turn off SOCK1
1：turn on SOCK1
protocol type， TCPC / UDPC
TCPC corresponding TCP client
UDPC corresponding UDP client
Set/query the network protocol parameter format.
EN enable 0：turn off SOCK2
1：turn on SOCK2
protocol type， TCPC / UDPC
TCPC corresponding TCP client
UDPC corresponding UDP client
E840-DTU(4G-02)User Manual
22