Bacnet

Comic cutaway of an elevator shaft where glowing teal network cables link the car, landing buttons, door motor and controller, with tiny packets flowing; the ErrorZap host sits on the car top with a laptop plugged in saying THE BUTTONS ARE ON A NETWORK.

The Elevator LAN

A modern elevator is a small network: CANopen Lift in the shaft, BACnet elevator objects for the building, and door health data that fits in a few bytes.

September 26, 2026 · 5 min · 1024 words · Justin