Answer / amit

LCN: Local Control Network is the Network Were number of UCN
(Universal Control Network)are Connected

UCN: Universal Control Network Were the Single DCS,PLC,FSC
etc..are Connected

These number of UCN's with DCS,PLC,FSC etc.are then
Connected to LCN and through LCN to all Server.

Explain PID, ON/OFF, Controls

0 Answers   CCIE, Gulf Engineering,

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If a control valve is hunting means means if we are giving 50% to the cv, the cv will open at 51% then slowly slwoly it will reaches 49% , so what to do for solve this problem. The cv is double acting and mounted for anti surge operation, it having 4 nos. volume booster, one sov, one positioner, etc..?

0 Answers   QAFCO,

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How many interlocks at turbine? Plz explain briefly

0 Answers   MRPL Mangalore Refinery and Petrochemicals Limited,

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Why we are using 4-20 mA as Analog signal transmission other than 3 to 19 or 2 to 18 or 6 to 22 like wise ? What is the reason behind using 4 & 20 mA? Can anyone give proper technical reply ?

5 Answers   Air Liquide,

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why 8bit microprocessor referred as 2^16?

2 Answers  

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What is the difference between HMI,SCADA and MMI,not abbrevation?

7 Answers   HCL,

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EXPLAIN PROPOTIONAL INTEGRAL DERIVATIVE CONTROL ACTION?

1 Answers  

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what effects a surging can produce in the compressor

0 Answers   Nemat,

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WHAT IS ANNUBAR?

7 Answers  

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What is expansion of SMART Instruments? And What is it?

35 Answers   Atesco,

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please tell me five types of fault of control valve and positioners?please

1 Answers  

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How to calculate the flow rate in Vortex flow meter?What is K factor?Can you give me an example calculation to understand the same as better?

1 Answers   npcc, Zadco,

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