USR-W610 User Manual
Technical Support:
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3.3.4.Keep-Alive function
W610 supports Keep-Alive function of TCP connection. W610 will disconnect to network when network
connection exceptions occur and will also reconnect to server after network connection restoring.
3.3.5.Heartbeat packet function
Heartbeat packet: In transparent transmission mode, module can output heartbeat packet to serial side or
network side periodic. User can configure the heartbeat packet data(less than 40 bytes and in HEX format) and
sending interval(1~65535s).
Serial heartbeat packet can be used for polling Modbus data or other querying commands.
Network heartbeat packet can be used for showing connection status and keeping the connection (only take
effect in TCP/UDP Client mode). When connection exceptions happen, W610 can’t send heartbeat packet to
network server successfully and will reconnect to server after sending unsuccessfully over three times.
3.3.6.Websocket function
W610 supports Websocket server function which can realize real-time communication between serial side and
web page and user can use this function in W610 Web Server(Websocket function occupies W610 port 8000).
Websocket server supports at most 8 client connections simultaneously.
3.3.7.Timeout reset function
After enabling timeout reset function in transparent transmission mode, if W610 has no WIFI connection or has
WIFI connection but no data transmission and these two situations last over a setting time, W610 will reset. This
time is range from 60~65535s and default is 3600s.
