what is the difference between dcs & plc

2 Answers  

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If any control valve create hunting problem, what is the possible reason and solution?

6 Answers  

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i want to know for good instrument engineer or success how many software knowledage required & from which university

0 Answers  

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In RTU Panel we are having several Analogue & Digital Inputs /Outputs. We are recently facing some problems over Analog inputs , which are not updating properly (But Digital Input are updating normally) Can any one tell me from where the problem is creating , we have checked PLC CPU card, Analog Input card & we reconfigured ,But still the issue is there. Issue : 1. Sometimes Analog values are updating & sometimes not. 2. Analog values are not updating normally , showing some wrong Values 3. Total dead (0 value) Analog values are Level & flow measurement from the field instruments. (But in field the instruments are working normally & Displaying the values normally in local display unit) This problem we are facing in our Water Plant. If any one experienced this same problem or having any ideas related to our issue PLS send your valuable Answers/Replies...

6 Answers   L&T,

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the whole paper was based on Transducers..questions like define repeatability, error,accuracy,precision..den there were many q. on the conversion of Pa to mmHg and other units.. also..der wer few Q. on some level sensors(with diagram)

0 Answers   GNFC,

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if change the pid in D value so what action.

2 Answers   Siemens,

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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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what is the hydra step level sensor output value( measuring level of steam drum)

3 Answers   Adani, ITPS,

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What is the main difference between the terms instrumentation and Automation?

5 Answers  

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how do calibrate the valves.. with clear manual

0 Answers   Essar,

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What is difference of fanuc alpha series 16i and 18i controller.also what is differnce betn TC and MC controller

0 Answers  

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What are the different type of instrument used in cement industry with uses

2 Answers   Lafarge,

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