AT Commands Set

SIM5320 AT Command Set
Test Command
AT+UDPSEND =?
Responses
OK
ERROR
+CME ERROR:
Write Command
AT+UDPSEND=,<
IP_address>,
data for send
Responses
OK
+UDPSEND: ,
+IP ERROR:
ERROR
ERROR
Defined values
a numeric parameter which indicates the length of sending data, it must be between1 and 1024.
A string parameter that identifies the IP address of receiver.The IP address format consists of 4
octets,separated by decimal point:”AAA.BBB.CCC.DDD”.In the latest software version,it already
Supports DNS query,so it may be a string like “www.google.cn.”.
A numeric parameter that identifies the port of receiver, the range of permitted values is 0 to 65535.
a numeric parameter that requested number of data bytes to be transmitted.
a numeric parameter that confirmed number of data bytes to be transmitted.
-1 the connection is disconnected.
0 own send buffer or other side’s congestion window are full.
A string parameter that displays the cause of occurring error.
Examples
AT+UDPSEND=12,”192.168.0.1”,80
>ABCDEFGHIJKL
OK
+UDPSEND: 12, 12
16.13 AT+SERVERSTART Startup TCP server
Description
SIM5320_ATC_V1.24 328
8/14/2012