LPWA Module Series
BG95&BG77&BG600L Series TCP/IP Application Note
BG95&BG77&BG600L_Series_TCP/IP_Application_Note 42 / 56
3.3.3. Receive Data from Remote Server in Buffer Access Mode
3.3.4. Close a Connection
successfully. The host can query whether the data has reached the
server with
AT+QISEND=0,0
.
AT+QISEND=0,4
//Send fixed-length data and the data length is 4 bytes.
>
test
SEND OK
AT+QISEND=0,0
//Query the length of sent data, acknowledged data and
unacknowledged data.
+QISEND: 9,9,0
//A total of 9 bytes data has been sent, and the 9-byte data has
been acknowledged by the server.
OK
AT+QISENDEX=0,"3132333435"
//Send Hex string data.
SEND OK
AT+QISEND=0,0
//Query the length of sent data, acknowledged data and
unacknowledged data.
+QISEND: 14,14,0
OK
+QIURC: "recv",0
//
<connectID>
0 has received data.
AT+QIRD=0,1500
//Retrieve the data. The maximum length of data to be retrieved is 1500 bytes.
+QIRD: 5
//The length of actually retrieved data is 5 bytes.
test1
OK
AT+QIRD=0,1500
+QIRD: 0
//No data in buffer.
OK
AT+QIRD=0,0
//Query the total length of received data, including read and unread data.
+QIRD: 5,5,0
OK
AT+QICLOSE=0
//Close a connection whose
<connectID>
is 0. Depending on the
network, the maximum response time is 10 seconds.
OK
