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  1. #1
    Join Date
    Aug 2008
    Location
    Gilbert Arizona
    Posts
    11

    Siemens MEC expansion modules

    I am wondering how many expansion modules I can add to an MEC controller?

    Also how far away can an expansion module be from the MEC?

    I am wanting to mount the expansion modules (one by each Airhandler) so I only have to run the communication wire daisy chained from the MEC to all the airhandlers.

  2. #2
    Join Date
    Feb 2007
    Posts
    56
    Max 8 PXMs and 200'

  3. #3
    Join Date
    Aug 2008
    Location
    Gilbert Arizona
    Posts
    11
    Thanks for the reply. Is there a booster that can be put inline to extend the distance as I need to go at least 600 feet. Thanks John

  4. #4
    Join Date
    Feb 2007
    Posts
    56
    Not that I know of. However,you could put them on a FLN buss to easily meet that distance requirement. If PXCM are only type device on FLN, then you can have 38400 baud rate. Give some thought to fault tolerance though. Also being FLN will allow up to 32 devices.

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