I m appointed as an automation trainee engineer in small firm in that I am only the one , my company give me a project on s7-200 as i m beginner I don't know how to program so please send me the helpful site so that I complete my project before deadline....please help me out in this critical situation.

0 Answers  

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If a control valve is hunting means means if we are giving 50% to the cv, the cv will open at 51% then slowly slwoly it will reaches 49% , then it will reaches again 50%, this type of action occured frequntly.. so what to do for solve this problem. The possible cause is in volume booster or positioner's relay.. positioner is double acting .. and make siemens..sipart.The cv is double acting and mounted for anti surge operation, it having 4 nos. volume booster, one sov, one positioner, etc..?

2 Answers   Gujarat Fluorochemicals Limited (GFL), Shell,

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why use on -off control valve in glove valve

1 Answers  

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in which application we use bigger size actuator

5 Answers  

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Can you explain drawbacks between P,I,D & PID controller

1 Answers   JSW, Priya Cement, TPL,

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Vibration probe working principle?

1 Answers   Tata Steel Limited,

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What is scan time of PLC?

2 Answers   Gujarat Borosil,

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What do you need to consider when installing a flowmeter

2 Answers  

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Pls.could any one Clarify the following with an example. 1.At What condition Close on Rise and Close on Fall Pressure Switch contacts are used. 2.If Pressure is abnormal as per set pressure,if connecting Terminal of pressure switch breaks,how the voltage extends to Relay base. 3.Are these contacts come under fail safe philasaphy.

1 Answers  

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what is the Difference Between Domain and Station?

3 Answers   Emerson,

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hi i'm an Instrumentation student,i have one doubt that we can call- > computer science as CS > Information science as IS > Electronics & communication as E & C In the same way what is short term for Instrumentation....?

11 Answers  

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There are many type of control cable like pair,core,tried, What are defination each one

0 Answers   Birla,

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