Explain the difference between the types of input variables plc?

1 Answers  

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WE Know that different supply voltage of solenoid valve like 24,110,220 etc..how we check the solenoid supply is 24v or 220 NOTE: No specification at device.

2 Answers   OMV,

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in my plant 100% feedwater control v/v is air to close but due to instrument air fail,the valve opens but instead of drum level high its get tripped in low low drum level.the urv of level tx is 0 and lrv is -800.pls tell me the reason. for such behaviour.

1 Answers   Sirpur Paper Mill,

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Condensation within a sight glass? Would you expect there to be more problems when using a sight glass if there is condensation on the inside or the outside of the glass, and why?

1 Answers  

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if the t/c o/p is 4-20mv then how plc recognize it because we are dealing with the 4-20ma in the plc ????????????????

7 Answers  

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i/p converter always for supply pessure from 3~15 psi only !! And from where this converter bleed the air.

2 Answers  

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WHAT IS THE DIFFERENCE B/W PLC and DCS

10 Answers   Bhel,

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What are the reliability data ,like failure rate etc,for bently nevada systems & vibration probes.

1 Answers  

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How to calibrate capillary type level transmitter

0 Answers  

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can anyone tell me about the basic concepts to consider before to start a PLC panel wiring

0 Answers   ABB,

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How to calibrate an pressure gauge with yantrika test bench?

0 Answers  

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KAlman filter code for two dimension?

0 Answers   Tisco,

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