Joseph Wu, Thank you for your response. My intention was to generate the loop power directly from my board so that an external loop power supply would not be required. I was concerned that using the main power supply (EXT_24V), which is also used for other circuits on the board, as both the loop power and the power supply for the DAC might cause issues with loop operation. For this reason, I wanted to isolate the power used for the loop and the DAC from the main power supply. However, I don’t fully understand the details regarding the connection of the LOOP node. I assumed that the terminal connected to the external resistor would ultimately be -VOUT of the ME124S-24E and the output of the DAC. Is there something I am missing? I would appreciate your help.
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