tlona
Member
I have an existing 1756-IF16 wired as single ended with all RTNs tied together. Channels 0-3 have 2-wire loop powered devices connected with all from the same 24vdc supply. I want to connect three (3) additional devices that are currently powered by 120v sources which provide 24vdc powered 4-20ma outputs. Do these new inputs need loop isolators being that all are powered from different 24vdc sources. Thank-you