Technical library

Building-automation field notes

Technical notes and field evidence for building-automation discovery, protocol connectors, and semantic normalization.

BACnet discovery

Choose a BACnet discovery tool and run a complete surveyBACnet discovery tools and workflow

Compare BACnet discovery tools by job, then use a bounded workflow to find devices, enumerate objects, verify readings, and record limits.

Diagnose a BACnet scan that is slow, incomplete, or timed outHow to diagnose a BACnet scan timeout

Diagnose BACnet scan timeouts in order: interface and port, broadcast scope, directed reads, device response, object enumeration, and local load.

Recover from a BACnet segmentation-not-supported abort during a scan or readHow to diagnose a BACnet segmentation reject

Identify a BACnet segmentation-not-supported abort, separate it from silence, then reduce the response size, split RPM work, or read arrays by index.

Understand the BACnet device and point discovery sequenceHow BACnet discovery works

See the BACnet discovery sequence from Who-Is and I-Am through Object_List enumeration, property reads, completion checks, and routed-network limits.

Choose a fair YABE alternative for a specific BACnet workflowYABE alternatives by BACnet job

Compare YABE with packet analysis, protocol test tools, and API-first discovery for Windows browsing, MS/TP, field writes, portable surveys, and exports.

Semantic normalization

Convert BACnet object facts into a reviewable Project Haystack modelBACnet points to Project Haystack

Map BACnet object type, name, units, value, and controller context into Haystack point and equipment records without hiding inference or missing context.