Read Coils as Inputs from Modbus PLC Simulator

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  • #6387
    Avatarfindor
    Participant

    Hi,
    I am using Rapid SCADA with the Modbus PLC Simulator as shown in your tutorials and it works fine with the registers. However, I can’t find a way to read Coils. In other words, I want to set the values of coils in Modbus PLC Simulator and then Rapid Scada to take them as input.
    For example, in the demo project with the server room, I’m changing the register values and the temperature values change. I want to do the same with coils. I added a LED in the schema with input channel a “Burnout” discrete entry (108 in the demo). How can I set the values of “Burnout” entries to 0/1 by changing the coils in the Modbus PLC Simulator?

    #6396
    MikhailMikhail
    Moderator

    Hi,

    Like that

    Modbus Coils

    #6415
    Avatarfindor
    Participant

    Hi,
    thank you for your answer. That works fine.
    The reason I couldn’t do it is because I haven’t understood how the addresses (of registers/coils) in Modbus Simulator map to the values of the table in RapidScada, so I didn’t know where to add the 1 values. If you could explain the mapping of the addresses I would be obliged.
    Thank you in advance

    #6416
    MikhailMikhail
    Moderator

    Hi,

    To be honest, I did this the first time in my life in the simulator.
    Likely, addresses are displayed in the left column. The same addresses are specified in the Modbus template in the project.

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