what is modbus?and why use it?what benifit

2 Answers  

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i am going to attend ongc exam this coming june for Graduate Engineer Trainee post if anybody knows the question pattern or have experience plz share it with me

3 Answers   ONGC,

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where uses EXe /EXd/Exo/Exn/Exp/Exq/EXia

0 Answers  

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what is the essential difference between DIODE and SCR in term of application.

2 Answers   ADMA OPCO,

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What is derating factor in Motor?

1 Answers  

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how to caluculate flow by using transmitter?tell me plz I am eagerly waiting for your reply..

2 Answers   Agi Glaspac, Reliance Power,

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What is surge and how is it prevented, what is the purpose of bypass valve across AS valve.

0 Answers   ADMA OPCO,

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what is the function of a diaphragm?

1 Answers  

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what is meant by calibration

20 Answers   Exxon Mobil,

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Please explain for RS 485 & RS 232 communication

1 Answers   Honeywell,

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can u please tell me the different types of valve uses and wt purposes it is used ~!(controlling the flow other than that which valve should be used in what place)

2 Answers  

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different between calibration range and instrument range ?

2 Answers  

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