HF2211 Serial Server Device User Manual
http://www.iotworkshop.com - 33 -
Figure 34. Web Page Configure Encryption
3.6. Keepalive
When TCP connection between device and server became abnormal. The device will check the
obnormal status and reconnect to server ( when the device working in TCP Client Mode), When the
device working in TCP Server, It will break the TCP client and wait for next connection.
Figure 35. Web Page Config Keepalive
3.7. Timeout
The device will break the TCP connection after some time(default is 300 seconds and it can be
modified)if there is no data packet received from Destination TCP target . It will reconnect to
server(When device works in TCP Client mode). When device working in TCP Server, It will
disconnect with TCP Clien. This mechanism can effectively restore TCP abnormal connection.If set it
to “0”, this function will be close.
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