can anybody tel me how a vfd or any field instrument communicates/interface with plc/scada/cs.

0 Answers   Honeywell,

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what is remote mount with MTA option? (In case of Dual Sensor Vortex Flowmeter,rosemount has written in its catalog drawings).

2 Answers  

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Exothermic reaction./ endothermic reaction

0 Answers   CCIE,

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Can anybody please let me know Orifice plate sizing calculation formula and step by step procedure

0 Answers  

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What is MLFB number for Siemens?N How they are defined?Give me Answer with example like take any Signal module....

1 Answers  

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In VVVF DRIVES VOLTAGE IS ALSO VARY WITH THE FREQUENCY. HOW? WHAT IS THE DIRECT FORMULA RELATING THESE TWO.

0 Answers   India Cements,

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What is the difference between HMI and SCADA and MMI

4 Answers  

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i am working in thermal power plant . if temperature transmitter is not showing reading in dcs then how can we rectify the problem?

8 Answers   TATA,

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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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what is different between modbus and serial link? please could anybody give right answer.

2 Answers  

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what is meaning of software redundency and hardware redundency?

2 Answers   Honeywell,

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what is cascade controller ?

6 Answers  

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