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Add schema for engineering units update #101

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024c6f0
Add schema for engineering units update
rerpha Jun 20, 2025
c3260f8
add to README
rerpha Jun 20, 2025
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9 changes: 5 additions & 4 deletions README.md
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Original file line number Diff line number Diff line change
Expand Up @@ -60,7 +60,7 @@ and work with the flat buffers union data type in your root element.
|------|----------------------------------|-----------------------------------------------------------------------------------------------|
| f140 | `f140_general.fbs ` | [OBSOLETE] Can encode an arbitrary EPICS PV |
| f141 | `f141_ntarraydouble.fbs ` | [OBSOLETE] A simple array of double, testing file writing |
| f142 | `f142_logdata.fbs ` | (DEPRECATED) For log data, for example forwarded EPICS PV update [superseded by f144] |
| f142 | `f142_logdata.fbs ` | (DEPRECATED) For log data, for example forwarded EPICS PV update [superseded by f144] |
| f143 | `f143_structure.fbs ` | [OBSOLETE] Arbitrary nested data |
| f144 | `f144_logdata.fbs ` | Controls related log data, typically from EPICS or NICOS. Note: not to be used for array data |
| ev42 | `ev42_events.fbs ` | Multi-institution neutron event data for a single pulse |
Expand All @@ -77,9 +77,9 @@ and work with the flat buffers union data type in your root element.
| ADAr | `ADAr_area_detector_array.fbs ` | (DEPRECATED) EPICS area detector array data [superseded by ad00] |
| ad00 | `ad00_area_detector_array.fbs ` | EPICS area detector array data |
| mo01 | `mo01_nmx.fbs ` | Daquiri monitor data: pre-binned histograms, raw hits and NMX tracks |
| ns10 | `ns10_cache_entry.fbs ` | (DEPRECATED) NICOS cache entry |
| ns11 | `ns11_typed_cache_entry.fbs ` | (DEPRECATED) NICOS cache entry with typed data (not used) |
| hs00 | `hs00_event_histogram.fbs ` | (DEPRECATED) Event histogram stored in n dim array |
| ns10 | `ns10_cache_entry.fbs ` | (DEPRECATED) NICOS cache entry |
| ns11 | `ns11_typed_cache_entry.fbs ` | (DEPRECATED) NICOS cache entry with typed data (not used) |
| hs00 | `hs00_event_histogram.fbs ` | (DEPRECATED) Event histogram stored in n dim array |
| hs01 | `hs01_event_histogram.fbs ` | Event histogram stored in n dim array |
| dtdb | `dtdb_adc_pulse_debug.fbs ` | Debug fields that can be added to the ev42 schema |
| ep00 | `ep00_epics_connection_info.fbs` | (DEPRECATED) Status of the EPICS connection |
Expand All @@ -95,6 +95,7 @@ and work with the flat buffers union data type in your root element.
| fc00 | `fc00_forwarder_config.fbs ` | Configuration update for Forwarder |
| al00 | `al00_alarm.fbs ` | Generic alarm schema for EPICS, NICOS, etc. |
| da00 | `da00_dataarray.fbs ` | Pseudo-scipp DataArray with time-dependent and constant Variables |
| un00 | `un00_units.fbs ` | Engineering units update |

## Useful information:

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13 changes: 13 additions & 0 deletions schemas/un00_units.fbs
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@@ -0,0 +1,13 @@
// Generic units schema

file_identifier "un00";


table Units {
source_name: string (required); // Source of the alarm state (e.g. EPICS PV, NICOS device, etc.)
timestamp: long; // Nanoseconds since UNIX epoch
units: string; // Describes the engineering units. Note this is optional
// as a PV may not have a units (.EGU) attribute.
}

root_type Units;