Art-Net Glossary

  • ArtPoll: An Art-Net packet used to discover the existence of Art-Net nodes.
  • ArtPollReply: An Art-Net packet sent by a Node in response to receipt of an ArtPoll.
  • ArtDmx: The Art-Net packet used to transfer zero start code DMX512 packets over the network.
  • Controller: A generic term describing an Art-Net device with the primary task of generating control data. For example, a lighting console.
  • Discovery: The process by which a controller discovers which nodes want to receive which universes of DMX512 data.
  • Download: Art-Net specifies the direction of file transfer to be from a node to a controller during a download. That is, a controller would download a copy of a node’s configuration file in order to retrieve a local copy.
  • Kiloverse: A group of 1024 Universes.
  • Media Server: A generic term describing an Art-Net device capable of generating control data based on the ‘mx’ Media Extensions to Art-Net.
  • Net: A group of 16 consecutive Sub-Nets or 256 consecutive Universes is referred to as a net. There are 128 Nets in total.
  • Node: A device that is primarily designed to convert DMX512 to or from Art-Net. A Node supports up to 4 Input-Ports and 4 Output-Ports.
  • OpCode: The 16-bit number which defines the packet type in Art-Net
  • Port-Address: one of the 32,768 possible addresses to which a DMX frame can be directed. The Port-Address is a 15-bit number composed of Net+Sub-Net+Universe.
  • Sub-Net: A group of 16 consecutive universes is referred to as a sub-net (not to be confused with the subnet mask).
  • Subscription: The term used to describe a Node that is consuming a particular universe of DMX512 data
  • Universe: A single DMX512 frame of 512 channels.
  • Upload: Art-Net specifies the direction of file transfer to be from a controller to a node during an upload. That is, a controller would upload new firmware to a node.