BE_ZERO_BE (Customer) asked a question.
Question about CLICK 4-20 mA output not working
I have a CLICK C0-02DR-D (PLC with analog I/O).
For verification testing, I connected a 500 Ohm resistor in series with an Ammeter between ACOM (analog common) and DA1 I.
I read no current while poking values into the analog output register (DF1 in this case).
Does the 4-20 mA output require an external loop power supply?
I could not find any wiring diagram in the hardware manual.
Thank you for your assistance.
https://cdn.automationdirect.com/static/specs/c002drd.pdf
According to the wiring schematic shown at the above (pp. 1 and 2), you need to supply an external 18-30VDC for the current output to work.