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Choosing a PLC for home automation: Moeller XN-PLC XI/ON or Siemens Simatic?

darekas 36041 63
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Which PLC should I choose for a cost-sensitive home automation system with about 99 inputs and 144 outputs: Moeller XN-PLC XI/ON or Siemens Simatic?

For your star-wired house with 99 inputs and 144 outputs, a distributed Moeller-style system looks like the better fit than a single Siemens Simatic CPU, but you should price the whole system before deciding [#6296091][#6561216] The key specs to compare are cycle time, I/O response time, maximum inputs/outputs or modules, memory, floating-point support, variable forcing, and the available serial/Ethernet ports and protocols [#6263236] Moeller/XC200 or Easy Control were praised for decentralisation, CoDeSys programming, Ethernet, and even a built-in web server on some models, which makes them easier to learn and adapt for home automation [#6191764][#6296091] Siemens S7-200/S7-300 can also work, but the software is different between the two families and the hidden cost of modules and adapters can make the total price higher than expected [#6189738][#6190195][#6285751] Several posters therefore advised getting quotes for complete configurations and also checking cheaper alternatives like Fatek, Beckhoff, or WAGO if price is the main constraint [#6252994][#6230232][#6580319]
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  • #61 6573502
    darekas
    Level 12  
    Posts: 106
    Rate: 17
    dzwilu wrote:
    A controller failure must not result in a total blackout :) Remote and local modes must be provided for (manual control in the event of a failure).



    It’s all very well saying that, but how do you actually do it?

    Added after 1 [minute]:

    andrzejek23 wrote:
    darekas wrote:
    panikaz wrote:
    Hello
    A question for everyone

    What is the cost of a CX9001?
    If you can, please let me know where I can buy one.


    I’d also like to ask about the cost of such a controller.


    CX9001-1001 (Basic CPU module CX9000, 32 MB Flash/128 MB RAM, K-bus, TwinCAT PLC runtime) 460,- EUR according to the catalogue.

    CX9001-1101 (Basic CPU module CX9000, 32 MB Flash/128 MB RAM, DVI/USB, K-bus, TwinCAT PLC runtime) 585,- EUR.

    Additional 2xRS485 card CX9000-N031 75,- EUR.

    TwinCAT PLC Building Automation - library 92,- EUR.


    It’s hardly a bargain, is it?
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  • #62 6580319
    Anonymous
    Anonymous  
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  • #63 6723801
    pjeter
    Level 12  
    Posts: 18
    Rate: 4
    Hi Daniel – everyone loves their own choice, haha.

    So I’ll boast about my choice and describe my DIY solution: Smart home managed by a PLC controller

    The whole thing runs on a Fatek controller.
    For the main unit + expansion modules + communication modules (RS-485, 232, Ethernet)
    I paid a total of 2,450 PLN (though that was at an attractive dollar exchange rate).
    60 inputs
    40 outputs

    Best regards,
    PJ
  • #64 7018768
    kk.2000
    Level 26  
    Posts: 641
    Help: 91
    Rate: 90
    "... you won't be able to create a website visualisation, for example"

    You can do anything, you just have to figure it out yourself. Sure, if someone buys an Easy controller it won’t be a walk in the park, and many things are easier in Beckhoff, but if someone wants to, they can even set up a web server on an Atmel :-)


    "... SIEMENS..." . Guys, is anyone else going to try to persuade me to go for Siemens, which I’m running away from as fast as I can? Sure – the soft starters are the best and cheap, but Siemens for a smart home???? And what exactly is so much better about this Siemens compared to other controllers, apart from the best PRICE?????????????????????????????????

    I’ll be honest – before I knew about Wago, Siemens was my go-to controller. I know the S5 with all its flaws, and the S7 was a revelation... but only for a while. Siemens is simply STUCK in the past.

    Now I do most of my work on Beckhoff and the difference is so great that I had to write this post :-)
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