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Thread: Zenon network - bandwidth requirements

  1. #1
    Join Date
    17.03.2016
    Posts
    62

    Frage Zenon network - bandwidth requirements

    Afternoon,

    Has there been any testing to determine the bandwidth requirements for Zenon network? I.e. what is the minimum required connection speed between 2 servers or a server and a client? Any maximum on latency?

    We are considering a network which utilises DSL connections via copper pilot cable to remote ends of a site (no fibre or cat5 connectivity). DSL devices present a network as a single LAN (so normal TCP traffic is not a problem), however, it has lower line speeds than there would be with 10base-T ethernet connecting the 2 points.

    I understand the answer might be a bit 'depends on the number of variables' etc, but am curious if CD have conducted any testing? Would there be any specfic recommendations to ensure system works better (maybe 'Permanently read varaibles' turned on etc).

    Zenon Client <-ETH-> Switch / DSL <----------------DSL-----------------> DSL / Switch <-ETH-> Zenon Server

    Example type device eg Westermo DDW-226. Would a baud rate of 1024000 = 1Mbps be quick enough?

    Thanks,

    Dave

  2. #2
    Join Date
    18.12.2017
    Posts
    23
    Best Answer

    Default Re: Zenon network - bandwidth requirements

    Hi!

    Activating "Permanently read variables" will increase the network traffic. It will force the driver to poll variables, regardless if they are used or not.

    After the client has synchronized the project files, like screens and settings, only the relevant data for the active screen will be transferred between the server and the client.
    If you check the requirements in the help file: Manual > Installation and updates > System requirements > Hardware requirements > Runtime, the minimum requirements for client/server projects are 64 kBits/s.

    Avoid trends using large amount of data by creating aggregated archives.


    Best regards

    Fredrik

  3. #3
    Join Date
    17.03.2016
    Posts
    62

    Default Re: Zenon network - bandwidth requirements

    Quote Originally Posted by FredrikV View Post
    Hi!

    Activating "Permanently read variables" will increase the network traffic. It will force the driver to poll variables, regardless if they are used or not.

    After the client has synchronized the project files, like screens and settings, only the relevant data for the active screen will be transferred between the server and the client.
    If you check the requirements in the help file: Manual > Installation and updates > System requirements > Hardware requirements > Runtime, the minimum requirements for client/server projects are 64 kBits/s.

    Avoid trends using large amount of data by creating aggregated archives.


    Best regards

    Fredrik
    Thats great, thanks Fredrik



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