Answer / raghav

Profibus is siemens propritary protocol, where as RS 485 is
standard multidrop serial communication (it's hardware), we
have communication for RS 485 profibus available in the
market

Answer / rajesh

profibus is best because its data rate is fast when fibre
profibus is used

in i/o panel for digital ouput(do) how much power(in volts) we must give?

2 Answers  

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hi i want sov loop cheak from consol to field the operater given status to sov still no change, but MR room to sov ok so whats a problem and alreasy cheak all conection ok ?

2 Answers  

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What is intrinsic safety mean.

0 Answers   CCIE,

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State bernoulli’s application.

0 Answers  

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

7 Answers   HCL,

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if differential pressure created by orifice falls below vapour pressure of liquid flowing through it what will happen

1 Answers   BARC,

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What is Burnout feature in a recorder?

1 Answers   CCIE,

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what is difference b/w the solinoid volve and autodrain?

3 Answers  

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what is the calibration standard for pressure and differential pressure transmitters?

1 Answers   Thermax,

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-200mmwc to 500mmwc range transmitter have there 4mA is -200 and 20mA is 500.what is the range in 12mA?

5 Answers   NCC,

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Draw symbols of the following :

0 Answers   CCIE,

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Boiler flame scanner working principle?

1 Answers   Bhel,

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