jtheoret-hardt (Customer) asked a question.

June 8, 2021 at 3:05 PM
Can you control the EA3-S3ML-RN HMI with plain MODBUS?

We have a computer system that can talk MODBUS Serial. Can I use it to control a EA3-S3ML-RN

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  • 2 answers
  • 343 views

  • ADC Community_02 (Automationdirect.com)

    C-micro is the master which in turn can be used to communicate Modbus Serial to your slave computer system.

     

    You can select Modicon Modbus RTU as the driver in panel manager of the C-Micro software.

     

    micro

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  • Garry (Customer)

    Hi jtheoret-hardt

    The Modbus protocol is a master/slave configuration. On a serial network, you can have only one master and several slaves. The slave will only respond to a master request.

    You will have to check to see if your computer can be a Modbus Slave.

    What software are you running on the computer?

    If Node-RED then you can have this be a Slave.

    https://discourse.nodered.org/t/modbus-tcp-server-setup/12216

    Regards,

    Garry

     

    https://accautomation.ca/

     

    Note: Modbus Serial uses a Master(Client) and Slave(Server). Modbus Ethernet uses a Client(Master) and Server(Slave).

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