From 050f5c4b60454373831c4614e94ed3926c3c587c Mon Sep 17 00:00:00 2001 From: Joseph Doherty Date: Tue, 16 Jun 2026 05:55:18 -0400 Subject: [PATCH] docs(historian): Total aggregate is server-side OPC UA only, not the bundled CLI (integration review) --- docs/Historian.md | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) diff --git a/docs/Historian.md b/docs/Historian.md index 148bf0f5..6ed1b8be 100644 --- a/docs/Historian.md +++ b/docs/Historian.md @@ -242,11 +242,12 @@ otopcua-cli historyread \ -U reader -P password ``` -Supported `--aggregate` values: `Average`, `Minimum`, `Maximum`, `Total`, `Count`, `Start`, `End`, -`StandardDeviation` (aliases: `avg`, `min`, `max`, `total`, `stddev`/`stdev`, `first`, `last`). +Supported `--aggregate` values: `Average`, `Minimum`, `Maximum`, `Count`, `Start`, `End`, +`StandardDeviation` (aliases: `avg`, `min`, `max`, `stddev`/`stdev`, `first`, `last`). `--interval` is the processing interval in milliseconds (default 3600000 = 1 hour). -`Total` is derived client-side as time-weighted Average × interval-seconds (see "Total aggregate -derivation" above). +The `Total` aggregate is served by the server's OPC UA HistoryRead endpoint for any conformant +client (derived as time-weighted Average × interval-seconds — see "Total aggregate derivation" +above), but is not exposed by this bundled CLI. ---