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RS485/Modbus RTU Transducers

Home Forums Environmental Sensors RS485/Modbus RTU Transducers

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    • #1826
      neilh20
      Participant
        Discussion on transducers that use “Modbus RTU” serial interfaces, typically half-duplex multi-slave RS485, but sometimes also full d
      • #1827
        neilh20
        Participant
          Well my first post on this is to talk about the powering – not as sexy as the protocol, but a base requirement.
          Since this is wired, each transducer is going to require power.
          Getting powering r
        • #1845
          neilh20
          Participant
            I received my dual relay board,
            * AtomicMarket.com: 5V Two 2 Channel Relay Module With optocoupler
            * SunFounder: 2 Channel DC 5V Relay Module with Optocoupler Low Level Trigger Expansion Board
          • #1846
            neilh20
            Participant
              So to query any piece of equipment over a protocol, there are two parts – the physical layer and the data link layer protocol.
              https://en.wikipedia.org/wiki/OSI_model
              For the nanolevel it specif
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