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

How a conductivity sensor & analyzer work at boiler, whats the principle & science is beyond this,How conductivity sensor sence & convert signal & move toward analyzer & analyzer show reading in percent? also what is temperature compensate option in conductivity analyzer

2315


What are primary elements of measuring pressure?

765


Can please tell mi about SIOS, PRM, SERVER, and what is the diference between PIN LAN, PCS LAN,APC Server, and please send the Doc if possible for referance,mail id patil_amit17@yahoo.com

1453


When doing a liquid seal on a differential flow transmitter , most of the time the sealing liquid will be heavier then the process fluid. For wich application will the sealing liquid be lighter than the process fluid if transmitter is mounted below the process line.

1403


In Safe Guarding test what means by "Failed to Danger" ?

1657






A valve in series with an orifice plate (DP transmitter), is aligned for constant pressure in the pipeline, if there is an error dx, How to align it in process.

875


What is eddy current? Describe the operating principle of proximity probe.

1760


What is heating effect?

1884


what is the PC interface and software for connection to ABB logic module “ LM011-CE18RAC “ ( for Programming ) ??

3438


hello sir/madam, I,Subramanian need 5yrs placement papers of officer trainee of Instrumentation technology.pls send to this mail id mani_nxtgen@yahoo.co.in please do the needful. with regards, subramanian.v

1770


what is the reset offset and control system in instrumentation

3121


why micro controller 8051/52's clock frequency is internally divide by 12 ?? and why it is further divide by 32 in UART serial communication ??

6864


what is metal of piston ring

1500


What denotes the 5/8mm in the 3300XL 5/8mm proximitor probe?

989


Can u tell me the principle of the tc,rtd,level switch,pressure switch ,transmitter(pr flow level temp.),vibration...plz

1518