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docs: Galaxy alias tags + relay converter (Uns.md, CLAUDE.md)

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Joseph Doherty
2026-06-11 21:39:12 -04:00
parent 4af27ea173
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CLAUDE.md
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@@ -45,6 +45,15 @@ Galaxy objects have two names:
Example: browsing `TestMachine_001/DelmiaReceiver/DownloadPath` translates to MXAccess reference `DelmiaReceiver_001.DownloadPath`.
**Alias tags** (`GalaxyMxGateway`-backed equipment `Tag`s) are a lighter
alternative to relay virtual tags: they store the Galaxy reference as
`TagConfig.FullName` (`tag_name.AttributeName`) and surface it under a UNS name
via a direct driver subscription, delivering native MX quality/timestamp with no
Roslyn script. They are authored on the equipment page's **Tags** tab via the
"Add alias (browse Galaxy)" button. A relay→alias converter runs per-equipment
(Tags-tab toolbar) or fleet-wide at `/uns/convert-relays` (FleetAdmin-gated),
with a dry-run preview before applying.
### Data Type Mapping
Galaxy `mx_data_type` values map to OPC UA types (Boolean, Int32, Float, Double, String, DateTime, etc.). Array attributes use ValueRank=1 with ArrayDimensions from the Galaxy attribute definition. The driver-side mapping lives in `src/Drivers/ZB.MOM.WW.OtOpcUa.Driver.Galaxy/Browse/DataTypeMap.cs`.