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AVEVA™ Plant SCADA

[Alarm]HeartbeatTimeout

  • Last UpdatedJul 19, 2023
  • 1 minute read

The HeartbeatTimeout parameter defines how long a server will wait before closing a link that has been used for receiving heartbeat poll requests from its pair server, but is currently idle. By default, the HeartbeatTimeout is set to 300 seconds, which means if there are no heartbeat request polls received via an open link within 300 seconds, the server will close the link.

The other server in the pair normally sends periodic server status polls every 10 seconds. When a server receives a poll request, it replies by sending a response that indicates its status. This allows the servers to check that they can send communications to, and receive communications from, each server in the architecture. During normal conditions, the servers in the Primary – Standby pair will:

  • Send heartbeat poll requests to the other server

  • Receive heartbeat poll requests from the other server

  • Respond to heartbeat poll requests by sending a status response.

Note: This parameter can also be applied to a specific cluster or alarm server process. For more information, see Configure Alarm Parameters for a Specific Cluster or Process.

Allowable Values:

0 to 4294967295

Default Value:

300

See Also

Alarm Parameters

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