English to Vietnamese Tech/Engineering Electronics / Elect Eng

Context:
"We yet to receive both instrument and IO list prior to our DCS system configuration. For the IO list, please mention the method of power supply. And please use the word as powered by DCS side or powered by field, because the wet/dry contact can have different meanings for different sides."
If the transmitter is "field power" as in the typical case of a flow meter or analyzer, then power is landed on the field instrument and its 4-20mA output is sourced back to the DCS. In other words, the field instrument has separate terminals for power and its output 4-20mA signal.

In many cases, 4-20mA isolators and splitters are used to help convert sourced 4-20mA signals from field powered devices into an "output loop
powered" signal that is "DCS powered" and can be interfaced with the DCS analog input cards. Without the isolator in between for these cases, you get what's called "bucking power supplies" and things won't work.


Link: https://control.com/forums/threads/dcs-powered-vs-field-powe...