TrendMiner continuously keeps indexed tags up-to-date to ensure reliable access to time-series data. This is done using different update cycles:
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Every 2 minutes for tags used in monitors. (monitor cycle)
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Every hour for actively used tags. (forward indexing cycle)
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Never for tags that haven’t received data for over a year which are called dormant tags (introduced in version 2025.R2.0)
in version 2025.R3.0, tags that haven’t been actively used in the past 7 days automatically switch to a daily update cycle. This is the new reduced indexing policy.
What are the advantages of the reduced indexing policy?
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Reduces unnecessary polling on inactive tags which lowers load on external data sources
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Improves TrendMiner resource efficiency
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Allows the platform to prioritize actively used tags
Administrators can monitor and manage these tags via the Index Overview menu, using filters for update policy and delayed status.
This policy is especially impactful in environments with large tag volumes, helping maintain a healthy and responsive indexing system.