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Can the 110CPUx12xx (512/612) Modicon Micro controllers support A120 expansion I/O when the unit is used in child I/O mode?

Yes. The 110CPU612xx and 110CPU512xx controllers can both support A120 expansion I/O when the unit is used in child I/O mode; however they have to be configured to control the A120 I/O modules directly. It is not possible to configure the parent Modicon Micro controller to control the A120 expansion I/O on a child unit.

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