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  1. VLADOAP

    Mitsubishi FX1N DI reacting on negative state

    Hello, I have some troubles with FX1N plc. The problem is that digital inputs react only when there is negative state ( 0V and not when there is +24V). I’m using Gx developer software with ladder logic. What may cause that problem? I’m new in PLC programing. Thank you!

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