BUSBuilding Understanding Standard
Demo

Nothing was redrawn

Cedar Street Building A, exported by one system and rendered by another. The geometry, the symbol roles, the live points and the setpoint write — with its priority and safety reference — all travelled in the package. The receiver supplied only its own artwork.

Download the package this was rendered from Read clause 13

Cedar Street Building A — imported into Meridian Ops

Rendered by busref acting as a receiving vendor (“Meridian Ops”) directly from the exchange package. Geometry, element identity, and every binding came from the package; every color, symbol shape, and animation is the receiver’s own. Amber badges mark write-capable elements with their command priority, preserved verbatim per 13.7-1.

AHU-1 equipment graphic

AHU-1 EQUIPMENT GRAPHIC  ·  MERIDIAN OPS — RENDERED FROM A BUS-1 PACKAGE, NOT REBUILTAHU-1 CEDAR STREET AT13.2 degCSAT13.0 degC10SAT SPFAN

Level 2 floor plan

LEVEL 2 FLOOR PLAN  ·  MERIDIAN OPS — RENDERED FROM A BUS-1 PACKAGE, NOT REBUILTVAV-2-0125.1 degC

Import report:

  • 138 entities ingested; 0 constructs unenforced by this receiver

What the package carried

Drawing geometry, layers, symbol roles, a georeferenced floor plan, eleven bindings, and one command write — a supply-air setpoint at priority 10 referencing the freeze-protection constraint. The fan command write channel is excluded for safety, declared in the manifest rather than silently absent — the exclusion clause 19.2 requires an exporter to offer.

What the receiver chose

Every pixel of the artwork, the dark palette, the type, the layout, the animation, and the quality styling. None of it was in the package. None of it needed to be.

What would degrade

A receiver missing damper.controlDamper truncates to damper and reports the substitution. A receiver with no prioritised write mechanism carries the priority and reports it unenforced. Neither silently pretends.