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I need an opto22 style rack with 13 inputs and 3 outputs, but they must be non-inverting inputs.
ie, sourcing rather than sinking on the output side.
Why? my servo drive requires +24Vdc to turn on the inputs, so the normal negative true logic of most opto22 style modules and racks won't work. I cannot change my input meanings; I am bringing in a BCD word, and the inverse of it is not a valid command so I must have sourcing inputs.
Ideas?
ie, sourcing rather than sinking on the output side.
Why? my servo drive requires +24Vdc to turn on the inputs, so the normal negative true logic of most opto22 style modules and racks won't work. I cannot change my input meanings; I am bringing in a BCD word, and the inverse of it is not a valid command so I must have sourcing inputs.
Ideas?