Patch a rig across universes, convert absolute addresses to universe/channel, and check what fits in 512 channels — free, no signup.
How many fixtures fit, and where each one lands. Enter your fixture's DMX footprint (channel count of its mode).
| # | Universe | Address | Range |
|---|
Consoles and visualisers sometimes use absolute addresses (1–66,048). Convert both ways.
Maximum fixtures of one type per DMX universe (no gaps).
LuminaPlot auto-patches your whole rig — drag fixtures onto trusses, get addresses, hookup sheets and power calcs instantly. Free for up to 3 plots.
A DMX512 universe carries 512 channels. Every fixture occupies a block of consecutive channels — its footprint — starting at its address. A fixture in 34-channel mode addressed at 1 uses channels 1–34; the next fixture starts at 35. When a fixture won't fit before channel 512, it moves to the next universe.
Most moving lights offer several DMX modes (personalities). A larger footprint gives finer control (16-bit dimming, individual pixel control) but eats universe space faster. Match the mode on the fixture, in your console patch, and on your plot — a mismatch is the most common cause of a fixture "not responding".
Ethernet protocols carry many universes over one cable: sACN and Art-Net both address fixtures the same way — universe + channel. Plan your universes first; the transport doesn't change the math.