Update ShowPix… via RDM ?

So, I have a single widget dmx, I update the showPix via a dmx cable. Perfect! But, I think to do this, Echo use the RDM protocol to communicate via the widget with the ShowPix. RDM can pass through ARTNET, isn’t it ?. Do you already test it ? Is all ARTNET nodes RDS compliant ?
I actually make a test with a luminex Node (first think I found in the warehouse), and except if a made bad manipulation, it’s not working.

Do you have a idea ? Or perhaps the communication between the widget and a ShowPix don’t work through ARTNET.

Thanks
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