What is the difference between PLC-HMI and DCS as each function of DCS based system is possible in PLC ?

2 Answers   Lucky Cement,

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What materials are used in thermo wells?

0 Answers  

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Why flow/pressure transmitter before control valve?

0 Answers   UPL,

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For what Wake Frequency Calculation is used?

3 Answers   Reliance,

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How to calculate P,I&D value in PID controller ?

0 Answers   Jindal Steel and Power, SAL Steel Power,

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Why Ma signal is using for control system?

1 Answers   Petrofac,

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how to callibrate a new i/p converter

7 Answers   TATA,

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What is Span Error

0 Answers  

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For an Instrumentation Engineer, is there any effect on Instruments of safety zones like zone0, zone1, zone2. As an instrumentation Engineer, what we have to consider or remember while working in these areas.( zones 0,1,2).

1 Answers  

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how to calibrate mass flow meter (Coriolis)? Example calibration range: 0 to 2500 kg/hr line size 3" fluid: Etheline glycol (MEG)

0 Answers   Honeywell,

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what is the difference between plant earth and instrument earth? and what type of cable( cable size ) used for both? and why ?

0 Answers  

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which one is best profibus or RS485 for communication?

2 Answers   Honeywell,

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