Answer / er.shah rahul

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.

Answer / rathina

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

Answer / dibyendu das

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.

Answer / vikas dhiman

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.

can u briefly explain aboutan aryton shunt multirange DC ammeter?

0 Answers  

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Emergency Shutdown Systems/ Plant Shutdown System.

0 Answers   CCIE,

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what are the programming languages used in dcs

7 Answers  

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List three types Level Transmitters with their working principles

1 Answers   ABB, Bapco Bahrain Petroleum Company,

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A differential pressure transmitter is configured to measure the height of an open tank : height 10m and dia 5m. Suppose this same transmitter is shifted to another open tank : height 10m and dia 4m. What will be the %error in measurement? how?

3 Answers   McCoy Engineering,

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components of control circuit belongs to control valve

0 Answers   KOC,

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I want to use 1/2 inch SS316 tube in my high pressure & temperature (64 kg/cm2 & 500 deg C)after condensate pot in pressure tranmistter. 1) Is it possible to use 1/2" ss316 tube in high pressure and temperature line. Tube manufacturer is local vendor. 2)On sarting the plant, We need to do system fluse that time condesate is not in the condesate pot so steam is directly contact with the tube. We have no exact calculation to know our tube is ok or nor at this time. pleae,reply.

1 Answers  

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What is cavitation. what is the effect of it on control valve and how is it prevented.

1 Answers   ADMA OPCO,

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what is differences between singal acting and double action valve

1 Answers   Carlo Gavazzi, Welspun,

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Thermocouple is a transducer but rtd is not transducer why? Both taking heat as a input and giving mv

7 Answers  

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What is scan time of PLC?

2 Answers   Gujarat Borosil,

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why pneumatic control signal output is use 0.2 to 1 kg/cm2

3 Answers   Jindal,

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