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- Alarm Scan Rate
- -1 Polling for Alarms is disabled
- 0 If Alarms are not needed is the best to set the 'Alarm Scan Rate' to -1. If it is set to 0 and the 'Alarm Source' is set to the 'PERIODIC_HISTORY_RECORDS', alarms will be obtained from Periodic History records.
- Event Scan rate
- -1 Polling for Events is disabled
- 0 Events are enabled, but only on notification from the 'Record Info' poller. And since the 'Record Info Scan Rate' is set to -1, there will be no polling for events.
- Periodic History Scan Rate
- Needs to be set to a positive number
- Daily History Scan Rate
- Needs to be set to a positive number
- Record Info Scan Rate
- -1 1 Polling Totalflow registers that contain information on for any changes of Alarms, Events, and History (i.e. respective Last Sequence Number) and notification to scan for Alarms, Events, and History if respective array has new entry arrays and notification respective pollers is disabled.
The second way to do it is to configure scan rates as shown below:
- Alarm Scan Rate
- -1 Polling for Alarms is disabled
- Event Scan rate
- -1 Polling for Events is disabled
- Periodic History Scan Rate
- 0 Scan on notification form the 'Record Info' poller.
- Daily History Scan Rate
- 0 Scan on notification form the 'Record Info' poller.
- Record Info Scan Rate
- Needs to be set to a positive number to poll registers that contain information on Totalflow Records Array (i.e. Totalflow registers for any changes of Alarms, Events, and History ), arrays and notify History Pollers that there is a are new entry entries in Array 250 (LOG_PERIOD_RECORD) and/or Array 251 (DAILY_RECORD).
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