thanks MJ and Fokko,

I try to summarize my now extended (but most likely not 100% correct) knowledge about data transfer to a Lanbox with UDP:

INSIDE THE LANBOX:
in the "global settings..." UDP tab:
- "from sender": anyone:4777
there's no need to change this setting.
- "copy light channels" and "to light channels" are quite self explaining.
But still one QUESTION: What happens if I don't enter anything into this fields and transmit UDP to the box? Nothing, I guess.

All correct.

- "of mixer": the UDP-in will control the channels in the mixer, which is located below all layers. So I have to delete all layers or turn off the desired channels in all layers for actually made UDP change the desired DMX channel.

- "of layer": if this is selected, the UDP-in is routed to the specified layer. You need to turn on those channels in that layer for enabling the control via UDP.

Whatever UDP is receiving, ONLY channels 1,3,5-15 will be set via UDP.

INSIDE MAX (OS X):
about the "lcudp-pack" object:
- input 1: it likes bangs, ints and lists. a list can look like "0 0 0 255" for setting the first three DMX channels to 0 and channel 4 to 255. such a list can contain as many entries as the box is able to handle.

- input 2: here you define an offset for the first channel. "255" to input 1 and an offset of "10" would set channel 10 to 255.
- input 3: set it to 1-63 if you wanna write to a corresponding layer (1=A,2=B,...). set it to 254, if you wanna write direct to the lanbox mixer, which has lower priority than the layers.

- input 4: here you can define the message type as described in the Lanbox Reference manual on page 83.
"1" results in a buffer write. "2" will result in a buffer broadcast.

I believe it's message type, I'll ask the designer of the protocol :-)

- output: obviously this needs to be connected to an otudp input.

So I guess if I send a buffer broadcast out of MAX, the Lanbox will receive it and will pass it to a layer or the mixer as specified in the global settings UDP tab. In this configuration input 3 of the MAX object lcudp-pack will be ignored.
Second possibility: I send the UDP packet as buffer write (feed a 1 into input 4 of lcudp-pack). in this case input 3 won't be ignored. but I guess the UDP settings in the Lanbox. Right? Wrong?
Yes Fokko, you told me that it's not possible to write to a layer, but why is this input 3 there?

I have to ask the creator of the external, we come back with answers later.

Fokko van Duin,                     Creators of the LanBox-LC
CDS advanced technology bv,         DMX lighting controller.
http://www.cds.nl/                  http://www.lanbox.com/

• Re: [LCtalk] MAX --UDP--> Lanbox, (continued)
  • Re: [LCtalk] MAX --UDP--> Lanbox, Fokko van Duin
    • Re: [LCtalk] MAX --UDP--> Lanbox, Samuel Gaehwiler
      • (- current message -), Fokko van Duin
      • Re: [LCtalk] MAX --UDP--> Lanbox, Samuel Gaehwiler
      • Re: [LCtalk] MAX --UDP--> Lanbox, Matthijs van Duin