tcp链接时间测试.txt

PIC18F6520+SIM300做的透明传输的DTU

at  
OK  
at+cipstart="tcp","61.50.243.232","2020"                                        
OK  

CONNECT OK
at+cipsend
at
OK
at+cipsend
> 1
SEND OK
at+cipstatus
STATE: CONNECT OK
at+cclk?
+CCLK: "01/01/01,12:25:17+00"
OK
at+cipstatus
STATE: CONNECT OK
at+cipstatus
STATE: CONNECT OK
at+cclk?
+CCLK: "01/01/01,12:50:31+00"
OK
at+cipsend
> 12
SEND OK				//50分钟之后链接还保持着