the last water drinker

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About the last water drinker

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  • Country Germany
  1. Siemens Simatic S7-1200 component selection

    Hi,  I am designing measurement devices and i intend to use Simatic S7-1200 as PLC for my new device. The problem is, my background is nothing close the electric and I am having quite a lot troubles when it comes to select components, I do not know how can I select components that are compatible with the PLC i am going to use.  Pressure sensor, humidity sensor shall be selected and which parameters I should be careful about? I read somewhere 24VDC supply voltage is needed. Is it needed even the device has digital output or is it for analog output only? How do I make sure about the communication interface? For some devices it says I2C, is that compatible with S7-1200? or do i need a special communication module for each component? Then it will be super expensive.  I would appreciate any answer.