Hi. I have another question about HART communicators and devices. The question is: should we feed 24 VDC to a HART device only through a PLC/DCS or can we do it with an external power supply?
Expert’s Answer: HART Devices and Power Supply
Hi there! I can explain, this is a pretty straightforward case of HART devices and power supply. In most cases, you can supply power to a HART device through the programmable logic controller (PLC) or a distributed control system (DCS). However, some controllers and systems can use a separate power supply to create the current loop. So, it fully depends on your structure.
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Hope it helped!
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