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    node red istance to be interfaced to Mervis PLC

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    • A
      arolli last edited by

      Hi all,
      I have a stable Mervis environment with Neuron + several extension. I want use a dedicated node red instance on dedicated HW and finding a way to interface it with Mevis. There is way to read and write Mervis Global Varialbles trough Modus TCP/IP?
      Thanks
      Antonio

      Martin Kudláček 1 Reply Last reply Reply Quote 0
      • Martin Kudláček
        Martin Kudláček administrators @arolli last edited by

        Hi @arolli,
        this is theoretically possible, but the easiest solution is to spin a ModbusTCP server in the Mervis and communicate over this protocol. The BACnet/IP would be easier to interface from the Node-RED, but we don't have any Node-RED nodes tested for this. The node-red-contrib-modbus works OK.

        Best regards,
        Martin

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        • A
          arolli last edited by

          @Martin-Kudláček said in node red istance to be interfaced to Mervis PLC:

          face from the Node-RED, but we don't have any Node-RED nodes tested

          Thanks Martin,
          how to spin Modbus TCP on Mervis?
          Antonio

          Martin Kudláček 1 Reply Last reply Reply Quote 0
          • Martin Kudláček
            Martin Kudláček administrators @arolli last edited by

            Hello @arolli,
            please follow this tutorial: https://kb.unipi.technology/en:sw:01-mervis:setting-modbus-server-hidden#setting_modbustcp_server_slave

            Martin

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            • A
              arolli last edited by

              Thanks Martin
              now it's clear and working.
              Antonio

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