Exchange data between two Modbus devices

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  • #5430

    Hi guys,

    I have two Modbus devices, and want to display the value of an input channel of the device 1, on the device 2. The displayed value (device 2) shoud be actualized by any change of the input value (device 1).

    I guess that I nedd the Automatic Control Module (I have ordered it and it will be installed).

    Which channels (input and output) should I create/connect, and how should I set the Automatic Control Module?




    You right that Automatic Control Module helps.

    1. Input channel #1 to get values from device 1.
    2. Output channel #2 to send values to device 2.
    3. In the module settings create a data change trigger and bind it to the input channel #1. A command under the trigger must be bound to the output channel #2. Tick “Copy value or data”
    4. Of course, you need to setup a driver to be able to set value on device 2 by commands.


    Also in a command parameters (of Automatic Control Module) you can use device and command numbers instead of output channel. May be this would faster. In this case you don’t need output channel.

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