Answer / anusree

i) Cyclic Execution
ii) Event driven Execution

Answer / shiva

There are two main types of PLC execution modes.
1) Cyclic execution mode.
2) Intrrupt and clock driven execution modes.

Answer / abdus sattar mollah

1.Continuos.
2.Periodic.
3.Eventual.

Answer / vijayaprakash

1) cold execution
2)hot execution

protection relay watchdog contact operation?

0 Answers   L&T,

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I have installed a RTD whose length is 2250mm(RTD stem length), but it's upper 200 -250mm is out of the reactor, and this upper 200mm stem is surrounded by atmospheric temp. And the lower portion i.e. 2000mm is in contact with the measuring fluid, then does the final measuring temp. Gonna change as the upper 200mm RTD stem is out of reactor?

1 Answers   Process Control Technologies,

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What is the electronic transmitter frequency.

1 Answers   CPCL, QAFCO,

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what are the three main programming languages in plc

12 Answers  

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How will you calibrate an Absolute Pr.Transmitter of range 400mmHg absolute ?

0 Answers   CCIE,

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What is the detail function of I/O card in DCS ? Why we dont use the I/O directly with controller?

3 Answers   Kekran Mekran, TCE,

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What is the meaning of the term "g force"?

3 Answers   Reliance, Saint Gobain, Thermax,

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how to replace the smart transmitter software

1 Answers   L&T,

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Why we use 4 - 20 ma?

6 Answers   IJT, ONGC,

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I want to know if flowrate increases in 16' pipe line what will happen to upstream pressure and why?

1 Answers  

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NSV type probe stands for

0 Answers   Qatar Petroleums,

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An engineering term STALL used in compressor operation what it means?

1 Answers  

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