Low power WIFI module user manual
Jinan USR IOT Technology Limited
Page 46/72
4.2.2.25. AT+ TCPLK
Function: Query if TCP link already build-up;
Format:
AT+ TCPLK<CR>
+ok=<sta><CR>< LF ><CR>< LF >
Parameters:
sta.: if module already setup TCP link;
on: TCP link setup;
off: TCP link not setup;
4.2.2.26. AT+ TCPTO
Function: Set/Query TCP timeout;
Format:
Query Operation
AT+ TCPTO<CR>
+ok=<time><CR>< LF ><CR>< LF >
Set Operation
AT+ TCPTO=<time ><CR>
+ok<CR>< LF ><CR>< LF >
Parameters:
time: TCP timeout time.
<= 600, (600s);
>=0, (0 means no timeout);
Default, 300s;
4.2.2.27. AT+TCPDIS
Function:
Open/Close TCP link
;
Format:
Query Opera
AT+TCPDIS<CR>
+ok=<sta><CR>< LF ><CR>< LF >
Set Operation
AT+ TCPDIS =<on/off><CR>
+ok<CR>< LF ><CR>< LF >
Parameters:
When query, sta.: Feedback if TCP Client can be link,
On,
TCP link close
off
,
TCP link on
When setting, “off” means close TCP link. After finish this command,
module disconnect TCP link and not connect again. “On” means open
TCP link. After finish this command, module re-connect TCP server
right away.