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Question
What is the DIfferences between SMART transmitters and
PROFIBUS DP/PA Transmitters?
 Question Submitted By :: Instrumentation
I also faced this Question!!     Answer Posted By  
 
Answer
# 1
Basically,smart transmitters are used for sensing the
analog signal then,smart transmitter digitalized it & give
it range& adjustment.it corrects it by many factor.it is
used only in non hazardous area.this is continuous sensing.

apart from that,PROFIBUS DP is decentralised periphery
used in non-hazardous area & PROFIBUS PA is process
automation used in hazardous area.They is joined through
coupler.PLC Periodically receives data as a packet.
 
Is This Answer Correct ?    5 Yes 0 No
Er.shah Rahul
 
Answer
# 2
Basically trouble shooting point of view, multimeter if
enough to trouble shoot the SMART Transmitter. but Profibus
we need some kind of PLC loaded PC's
 
Is This Answer Correct ?    1 Yes 0 No
Rathina
 
 
 
Answer
# 3
PLC DCS
 Fast logic scan (approx. 10ms) is required to perform
motor or motion control.
 Control loops require deterministic scan execution.
perform motor or motion control at a speed of 100 to 500 ms
 Redundancy may not be cost justified.
 System redundancy is often required.
 System can be taken offline to make configuration.
 Online configuration changes often required changes.
 Analog Control: Simple PID only.
 Analog Control: Simple to advanced PID control up to
Advanced Process Control.
 Diagnostics to tell you when something is broken.
 Asset Management alerts you to what might break before
it does.
 
Is This Answer Correct ?    1 Yes 0 No
Dibyendu Das
 
Answer
# 4
SMART Stands for Self-Monitoring, Analysis and Reporting Technology which is basically a technology and whereas Profibus DP/PA are transmission protocols. Like HART, Foundation Fieldbus etc. 
Is This Answer Correct ?    1 Yes 0 No
Vikas Dhiman
 

 
 
 
Other Instrumentation Interview Questions
 
  Question Asked @ Answers
 
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WHAT IS THE DIFFERENCE BETWEEN A TRANSMITTER & A SMART TRANSMITTER.   8
If an Instrument has 550 ohm internal resistance and the cable used for that instrument is 0.5 ohm per meter resistance. If the voltage is 12volt.How much length cable can be used? Please tell me its Calculation formula. MOL 5
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why we use condesiate parts before tranmitters?   3
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hi all plz tell me difrence between analog or digital load cell.   2
if we open the inlet of an air regulator ,how it will affect the out put of regulator? (out put of regulator is using to operate an on-off valve.it is an air to open valve,and valve is in open position.my doubt is air regulator will hold the valve in open or not,if there is no consumption or leak in regulator out put side ,we only loose the input pressure.) Asian-Paints 4
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