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Modbus device ID

Discussion in 'Electronic Design' started by [email protected], Dec 12, 2007.

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    The company I work for is developing a controller that has three
    communications ports: two RS485 and one TCP. Modbus TCP and Modbus
    RTU Master/Slave will be implemented. It has been proposed that each
    port have a different Modbus device ID, rather than one global ID.

    I contend there is no benefit to this, and only adds confusion for
    integrators. Does anyone know of a precedent for this?

    Thanks in advance.
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