PI System Data Resiliency · Tag Cleanup
Teams do not hesitate to clean up tags because they are lazy. They hesitate because they cannot see what depends on a tag. A tag that looks unused might feed an AF attribute, a PI Vision display, a scheduled report, an analytics pipeline, or a compliance calculation. Tycho maps those dependencies so cleanup becomes a confident decision instead of a risky guess.
Is the tag referenced in an AF attribute, analysis, or template? Removing it silently breaks calculations across asset hierarchies.
Is the tag used directly in a display symbol or display-level calculation? Operators will see an error instead of a value.
Reports, analytics pipelines, exports, and external platforms that pull from PI may silently stop receiving data.
PI estates grow organically over decades. Tags accumulate from projects, acquisitions, temporary installations, and undocumented decisions. Tycho categorizes tags by condition so teams know exactly what they are dealing with.
Tags that have not received fresh data for days, weeks, or months. May indicate failed interfaces, decommissioned instruments, or orphaned configuration.
Tags with no references in AF, PI Vision, reports, or known consumers. Candidates for cleanup if lifecycle ownership is established.
Multiple tags measuring the same signal, often from different naming conventions or migration events, with no record of which is canonical.
Tags with no parent context in the asset hierarchy and no documented owner. Uncontextualized data that no one manages.
Tags that violate site naming conventions, creating discovery friction and making lifecycle management harder across teams and sites.
Tags with no assigned owner, making it impossible to make informed lifecycle decisions or identify who to consult before a change.
For each candidate tag, Tycho traces the full dependency chain. You see every AF attribute, analysis, PI Vision display, and known downstream consumer before making any change. This turns a risky cleanup into a structured, documented process with a known impact radius.
Tag count is not just a governance metric. In PI environments with consumption-based licensing, unused tags represent wasted spend. But tag reduction is only valuable when it is safe. Tycho ensures that every tag removal decision is grounded in a complete picture of usage, ownership, and downstream risk — so no cleanup creates a new problem.
Get a clear view of your tag population: what is stale, unused, duplicated, and orphaned — and what depends on each one before you act.
Tycho Data helps teams ensure their operational data is reliable, accessible, and actionable.