What is the difference between PLC and DCS?

4 Answers   Honeywell,

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We do have a problem in the company that is one PT connected to PlC which is mean 1 out of 1 in PLC system we do have the PAHH is 55 mbar and PALL 8 mbar with a timer of 15 sec for the PAHH the problem started when PAHH goes more than the set point which is 55 it reached up to 71 but due to timer doesn't trip . We force it and we checked everything nothing there . We replaced the transmitter problem still there the reading goes more than the 55 bar the range for transmitte is 0- 60 mbar . So we did loop check , aculaizing valve , wiring all are okay . What the possible causes for this ???

2 Answers   National Petrochemical Company,

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Using your own examples solve a problem involving normal table. (experimental method and analysis)

0 Answers  

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How to calibration of vibration probe

1 Answers   Mina Al Ahmadi Refinery,

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Why are the uses 24vdc in industries

0 Answers  

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plz exlain the dcs system of ABB sympony hamnony

1 Answers  

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Explain working principle of lvdt?

0 Answers  

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Square root calculation for dp flow transmitter?

0 Answers  

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Lube oil pressure transmitter local it's showing 9.8 kg/cm2 but dcs side it's showing 9.26 like that what is the reason?

3 Answers   Edac,

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What is the cascade control system and where is use in power plant give the detail with block diagram

1 Answers  

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As an industrial instrument technician what we have to know?

3 Answers  

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what is function of SCADA , and how is it work, explain with difination

0 Answers   Bapco Bahrain Petroleum Company,

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