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docs(#655): history is server-side only; rewrite OPC-009 and stale driver-history references

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Claude-Session: https://claude.ai/code/session_01Ef2ozxS7QPanGT8uoATbTe
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Joseph Doherty
2026-10-08 23:36:25 -04:00
parent f7f7d948cd
commit 67059e479f
21 changed files with 72 additions and 97 deletions
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docs/research/drivers/sql-poll.md
+2 -2
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@@ -30,8 +30,8 @@ IReadable, ISubscribable, IHostConnectivityProbe` living in
equipment-tag parser, and a `.Browser` project for the AdminUI address picker. It has **no native
push model** — subscriptions overlay a polling loop via the shared `PollGroupEngine`
(`src/Core/ZB.MOM.WW.OtOpcUa.Core.Abstractions/PollGroupEngine.cs`), exactly as Modbus/S7/AB-CIP do.
`IWritable` and `IAlarmSource`/`IHistoryProvider` are **out of scope for v1** (writes deferred;
alarms/history aren't expressible from a poll query).
`IWritable` and `IAlarmSource` are **out of scope for v1** (writes deferred;
alarms aren't expressible from a poll query; drivers carry no history capability).
Points are ordinary equipment `Tag`s bound to the driver via `TagConfig.FullName`; reads/subscribes
resolve `FullName` to a tag definition through the shared `EquipmentTagRefResolver<TDef>`