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RS-485 data logger

gabby

Hi. I need a device to record parameters from a MODBUS RS-485 capable sensor which has no inbuilt storage. It has to be standalone and allow me to download a file with every couple of weeks.

This sort of device does not seem common and I've found only one which is essentially a recording panel meter. Looking for something easy to configure to read the sensor parameters, and not too expensive. Are there any devices out there? Thanks

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  • 0

    When you say stand alone, do you mean battery operated or simply not connected to a network ?

     

    If it is simply not connected to a network then an Arduino, Raspberry PI or something like that would work with a RS485 module. If your using the PI then you can use node red and make it a little more user friendly and even have a local WIFI for access.

     

    If you need to have it industrial strength then an Industrial Shields unit or a Siemens IOT2020 would do the trick, both would require a 24V supply but either can do the job for you with relative ease. The Industrial Shields have RS485 included and are Arduino Based so easy to program (You did not say how much data needs recording)

    The IOT2020 would need an Arduino RS485 Shield but as it is running Linux it can store the data on the SD Card.

     

    Hope this helps

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  • 0

    When you say stand alone, do you mean battery operated or simply not connected to a network ?

     

    If it is simply not connected to a network then an Arduino, Raspberry PI or something like that would work with a RS485 module. If your using the PI then you can use node red and make it a little more user friendly and even have a local WIFI for access.

     

    If you need to have it industrial strength then an Industrial Shields unit or a Siemens IOT2020 would do the trick, both would require a 24V supply but either can do the job for you with relative ease. The Industrial Shields have RS485 included and are Arduino Based so easy to program (You did not say how much data needs recording)

    The IOT2020 would need an Arduino RS485 Shield but as it is running Linux it can store the data on the SD Card.

     

    Hope this helps

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