what is modbus,profibus,fieldbus

2 Answers  

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What is the difference between PLC-HMI and DCS as each function of DCS based system is possible in PLC ?

2 Answers   Lucky Cement,

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calibration of instruments.

11 Answers   ONGC,

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When a field input to plc is coming from 400 to 600 meters and the input is in 24 V DC? So signal cable of which cross section i should select for proper signal to plc?

5 Answers   Exxon Mobil,

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what is working principle of presure and temperature guage?

4 Answers  

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tion 0,50,100% equql to voltage formula?

1 Answers  

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Can we place a Control Panel in Hazardous area Group IIC ? If 'yes' then is there any approval required? If 'yes' then there is any specific IP rating or any standard required? If 'Yes' What is MOC of control panel?

2 Answers  

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what is the principle of ultrasonic flowmwter and radar type flowmeter?

4 Answers  

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Can anyone explain about ELectropneumatics principle?

1 Answers   Forbes Marshall, Step,

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Explain pH, Conductivity.

0 Answers   CCIE,

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how to calculate static pressure in a pipe line,when we know the DP(differential pressure) in the line, area of the pipe? please any one tell me the relation between them..?

2 Answers  

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hi everybody. right now i am working with thermal power plant. our company plant is tripped because of program corrupt. i would like to know is it possible when the plant is running. we are using FREELANCE ABB800F CONTROLLER.

2 Answers  

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