Net3 protocol specification?

Hi folks,

I'm trying to write a piece of software which sends sACN, but crucially, with per-sACN-address priority - in the same way that the Net3 protocol seems to allow an sACN source (i.e. Paradigm systems) to take control / priority over specific addresses within a universe. (Is this only offered by the Net3 protocol?)

From what I can tell, the E1.31 sACN protocol as it is seems to provide this support, by being able to specify the Property Value Count, First Property Address, and length of the DMP layer.

Although, I fear I could be misreading the E1.31 standard.

Essentially, I'm writing code in Python 3, and am basing it off of this project: https://github.com/Hundemeier/sacn

Would anyone happen to have a breakdown of the Net3 protocol, in a similar format to this:

https://tsp.esta.org/tsp/documents/docs/E1-31-2016.pdf (this document is actually superseded by the 2018 revision)

The application of this code is to control parts of a light's pan/tilt through another system, but still allowing the LD to control colour, zoom etc.

Any thoughts are appreciated!

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  • Net3 is a collection of different protocols, some standards and some proprietary. To do per-address priority you don't need to know Net3. Wireshark will tell you everything there is to know when you look at sACN output of e.g. ETCnomad. The priority message is sent once a second, looks like a regular sACN message but has a start code of DD. It is actually quite easy to find.

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  • Net3 is a collection of different protocols, some standards and some proprietary. To do per-address priority you don't need to know Net3. Wireshark will tell you everything there is to know when you look at sACN output of e.g. ETCnomad. The priority message is sent once a second, looks like a regular sACN message but has a start code of DD. It is actually quite easy to find.

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