What is mean by Ethernet, Device net and Control net? For what application we are using these?

4 Answers  

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What is loop checking ?

10 Answers   Kharafi National, Petrofac, Samsung,

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installation process of orifice,a question asked for confusion creation in interview by BARC 1.if orifice is tightly fitted with pipe ,it will act like venturi 2.if orifice is left hanging in between liquid it will not create the pressure difference exactly,

0 Answers   BARC,

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What is hp & mp seperator .& what is its working principle ?

0 Answers  

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Explain the functions of the CPU of a PLC.

1 Answers  

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What is the potential contact / output??

1 Answers   Vasava Engineering Private Limited,

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how to know the URL and LRL for steam drum level and why the calibration range is in negative ?

1 Answers   JSW, Samsung,

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Describe all types and levels (4-20mA, 0-10V, mV, pulse, etc.)of analog and digital I/O used in process control application.

2 Answers   Jindal,

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the pump holds on run indication into the dcs and filed local control panel remote push button condition operaton wrong like when the push button pushing conditions the pump is off and the push button release condition the pump is on totally opposite condition . And control room inside give the stop command into dcs just 1secon relay engage and again normal condition. How can I slove

0 Answers  

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how can be calibrate flow indication transmitter (rosemount) it shows excess milli amps nearly about 24 ma on full scale, but its scale was set on 20ma on full scale..???how can be simiulate..???

0 Answers   Siemens,

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What is the function of solenoid valve in on/off & shutdown valve and why it is not used in control valve normally?

0 Answers  

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if change the pid in D value so what action.

2 Answers   Siemens,

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