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What is an analog input - output , digital input - output .
Any example ???? How they r known its ai-ao or di - do
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Answer Posted / barok
AI- means input of 4-20mA comes from transmitter to DCS
AO- means output of 4-20mA comes from the controller on DCS
DI- means input of 0 and 1 comes from switch to DCS
DO- means output of 24VDC come from DCS going to solenoid.
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