rodneyk Posted May 16, 2015 Report Share Posted May 16, 2015 I need to show a voltage on a remote LCD display that has a 0-10v input. I am sending the value via the V200 analog output, set up as 0-10v. With the LCD disconnected, I get the 0-10 volts from AO0, but when I connect the LCD to the AO0 port, the LCD displays approx. 500 mv. and the output of AO0 drops from 10v to about 3.2v. The LCD datasheet says the the IN1 input is not isolated from the V+ ground. I am guessing that this is because I have not connected the Analog Output COM line, and the voltage from AO0 has no return path; The question is, if it is OK to connect the COM line to the 0V common? This type of connection is not shown in the V200 documentation. Thanks for any help in this matter. Quote Link to comment Share on other sites More sharing options...
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