MLis MLB-S4101, Руководство пользователя

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MLiS-S4101 Manual
5
2.4 Heart Beat
The MLB-S4101 provides a convenient way to establish reliable communications between two devices. Communication
port 5300 is reserved for the Heartbeat Protocol.
Without this feature a device that loses a connection and stops
communicating would not be able to reconnect without personally attending to the problem. A TCP data connection can
be lost when there is a power failure or temporary loss of an Ethernet connection on either the client or server.
If a loss occurs the Heart Beat feature will try to reconnect the TCP data connection every 5 seconds until
communications is established again. The Heart Beat feature is available to use with the Virtual COM Mode, Paired Mode
and Direct IP Mode. This is not available when using a UDP application.