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  1. sparky71

    analog differential or single ended inputs

    Thanks Keith, The analog current input card has internal 249ohm resisors, so the card does the conversion to 1-5 Volts. Steve
  2. sparky71

    analog differential or single ended inputs

    I am wiring four 4-20 mA inputs to a control logix 1759 AI8 module, via IFM module. All four inputs are from 4 wire transmitters, supplying their own power. I have two options, 1. Wire the card as differential analog inputs giving me no spare inputs. 2. Wire the card as single ended inputs...

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