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Werma 816 Beacon
The Werma 816 Beacon is a single-head RGB LED status beacon, Werma part 816.480.53 — not a tiered tower like the Werma 640. Revolution drives it over USB from the host so a schedule’s state is visible from across the room, not only on a screen.
At a glance
Section titled “At a glance”| Type | RGB LED beacon head (816.480.53) |
| Revolution control | Schedule state maps to a fixed colour; the driver sets the beacon to match |
| Configuration | COM port only — the colour mapping is not configurable |
Specifications
Section titled “Specifications”Werma’s datasheet for the USB variant (816.480.53) states:
| Diameter | 75 mm |
| Height | 97 mm |
| Protection category | IP65 |
| Working temperature | −20 °C to +50 °C |
| Power | 5 V DC via USB — no separate power supply |
The beacon head is an RGB LED unit capable of a wide range of colours; Revolution drives it with three fixed colours only (below), not the full range the LED supports.
How Revolution uses it
Section titled “How Revolution uses it”The beacon is a status indicator, not a scheduled instrument: there is no operation to call from a method. Unlike the Werma 640’s tier mapping, the colour for each state is fixed in the driver and not configurable:
| State | Colour |
|---|---|
| Running | Green |
| Paused | White |
| Error | Red |
| Idle (no state active) | Off |
When more than one state is active at once, Error takes precedence over Paused, which takes precedence over Running. The driver also re-sends the current colour every half-second as a keep-alive, so the beacon recovers its state after a brief power interruption without Revolution having to notice and resend it.
Integration
Section titled “Integration”Revolution talks to the 816 over USB, presented to the host as a serial port.
Prerequisites
Section titled “Prerequisites”- The beacon must be connected and its COM port known before the device is initialised.
If you need more of this instrument driven from a schedule — for example, a configurable colour mapping — get in touch; the driver is extended on demand.