Explain about SOURCING & SINKING concepts in PLC to field
sensor wiring ?

Answer Posted / nani babu

sinking means 0 volts to relay common
sorcing means 24 volts to relay common

Is This Answer Correct ?    3 Yes 4 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

We Have Two Field bus Pressure Transmitters of Different Sensor Range (I.E One is of Lower range and Another is of Higher Range).Is same Process Line. My Question is Can i provide Saturation Limit to my field Bus Transmitter as We can provide Saturation current limit to HART Instruments. As During Low Pressure Both Working OK ,But During High Pressure, transmitter with Lower sensor range Goes to Fault mode as Beyond its Sensor Limit it can Measure, So may I provide Saturation point Some where to Suppress This Fault during High Pressure.

1233


How does temperature bath work? How does coil gets heated only by applying some current?

1437


Can any one send me IOCL instrumentation question papers.. i dont know the pattern of the questions and what to prepare can any one help me on this .. my email id is anwarnishil@gmail.com

1807


Q- What are the application in which PNP transistor is preferred over NPN ?

2942


what is the calibration procedure for transweigh make weigh feeder?

3573






Why even multiple power supplu r used in instrumentation system?

4314


How we can check the 2 wire proxy switch? & how it is connected to DI MODULE OF PLC?

2128


please send me some question papers of HPCL aptitude test ?? please send it to bipinb.28@gmail.com ...

1621


i am from instrument branch i want paper patern of mahagenco . any pevious years paper regarding my branch send me please . please.....

1730


can any one tell me when ongc placement test and its forms is available????/ pls tell me if u know

1730


I m appointed as an automation trainee engineer in small firm in that I am only the one , my company give me a project on s7-200 as i m beginner I don't know how to program so please send me the helpful site so that I complete my project before deadline....please help me out in this critical situation.

1655


How r the calculation of process line mpm.

4409


why using negative supply for bentley nevada vibration system ?

1795


What is the main difference between Cavitation and Flashing?

13585


What are de-saturators?

842