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Thread: Multicast / Automation / Motion tab / Moving Layers / General Controllers

  1. #1

    Multicast / Automation / Motion tab / Moving Layers / General Controllers

    Hello Ladies & Gents,

    TL;DR

    Looking for help in setting up a Multicast "position" input into
    Catalyst, in order to move a layer in unison with an automation controlled
    move of (for instance) a screen. Wireshark can see data packets.
    V5 n546 & n561, no luck in either.


    I'm wondering if anyone has successfully received data into the Motion (Input)
    tab & used it to move a layer. Although the final use (& automation system)
    is not yet clear, I've been asked to investigate the potential of this to
    control Catalyst.

    As an example, the test method I'm currently using is Kinesys, who can
    provide a demo control application, along with extensive notes on how to
    program & interpret the resulting data. This has allowed me to send
    multicast data, with the position information of a truss correctly being
    seen in Wireshark on the Catalyst machine.

    The problem occurs when attempting to receive that multicast data within
    Catalyst - in the Motion tab, with 12 inputs on, the correct construct
    entered [1 & 2] and the correct axes [2 - Z motion] entered as an integers.
    Decoding the multicast data packet for one Z axis (sent as 0x66) gives me
    the correct ((Construct ID * 100) + Parameter ID) of 102 decimal.

    Two groups of constructs (a truss, with a couple of motors is a construct)
    are created, so I'm looking for two instances of Z position data, but no luck.

    The default address is 239.195.0.1 which is enabled in both the Kinesys
    software & within the Motion tab of Catalyst. I can control Catalyst
    from the other machine over ArtNet.

    From what I can tell, once I have position data I can translate those
    numbers into a scaled representation with General Controllers & use
    those to move the layer. Does that sound correct?

    I'm aware that there have been a few posts about this over the years, but
    from my research I can't seem to find anything relevant, except the
    Shanghai Expo, which was motion controlled by Catalyst, not the other
    way around.


    Questions:

    Has anyone succeeded in doing this before?

    I'm expecting to see sent values in the Position column of the Motion tab,
    is that an assumption?

    Is the multicast address within Catalyst (All Motion Channels) the receive that
    I think it is? Thus it should be ON and have the same address as the send machine?

    If I send the Motion/Multicast "Test" from Catalyst should I then see some
    sort of test packet on the other machine?

    Do I need a separate NIC - it would appear not, due to Wireshark seeing data?

    Any other help would be most welcome.

    Thanks in advance.

  2. #2
    Join Date
    Oct 2004
    Location
    UK - Milton Keynes
    Posts
    803
    Question for the developer to answer.
    Simon Pugsley

    SNP Productions Ltd. (UK)
    Lighting & Video Control Solutions
    Catalyst|Sales|Hire|Training|Support
    Catalyst Dealer UK Europe & Worldwide...

    Office: +44 (0)1908 410129
    Mobile: +44 (0)7958 390034
    simon@snp-productions.co.uk
    www.snp-productions.co.uk

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