Answer / hiren

Types of cables in plc
RS232 (modem), Ethernet/IP, DeviceNet (CIP), ControlNet (CIP), Modbus(RS485), Profibus(RS485), Fieldbus .
For Dcs communication cables profibus

if a tank is contaning oil and water than how can we measure the oil and water level seperately

3 Answers  

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What is impulse line size

3 Answers   IFFCO,

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how will you check torque value during Factory acceptance Test for control valve/ESD ON/OFF VALE how will you confirm this torque value is being correct, Which document will you be refer.

0 Answers  

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what is AWG?

2 Answers   NTPC,

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What is a snubber circuit?

2 Answers  

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what is Dry Leg calibration and where is it used

1 Answers   Petrofac,

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kindly sent some demo question and answer

0 Answers   HPCL,

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what is instrumentation?

8 Answers  

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What is the cascade control

0 Answers  

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hello friends, can you please send me the model paper or question paper to be prepared for hpcl examinations????????? You can mail me at rahim_here@yahoo.com waiting for your reply........... help me .. plz.....

0 Answers  

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where i can get training in INTOOLS and PDMS in Delhi-NCR OR north part of India. please reply with ur ans. at arunsamkaria@ymail.com

0 Answers  

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What is inside the PLC panel? How does instruments communicate to DCS computer via PLC? What is the type of wiring in PLC connections? Please answer... Thanks

1 Answers  

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