Answer / venkadesh777

it is the field bus &communication protocol.developed by
modicon

Answer / nilesh

1.Modbus is a serial communication protocol developed by
Modicon published by Modicon® in 1979 for use with its
programmable logic controllers (PLCs).
2.It is used for serial communication between to electronic
devices like PLC and DCS.
3.Open architecture so there is no propritery roylti for
implementation so not costly

Why is a dead weight tester so called by that name?

1 Answers   SGS,

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difference between DCS @ SCADA system? and how can use in field

5 Answers   Marafiq,

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On LPG sphere tank we used LIT for level indication.High side port is connected to the bottom of the tank while low side port connected to the top. I would like to know how to fill the glycerin on its low side with two condensing pot installed,one from top and the other one for its drain line.Please I need your expertise...thanks

1 Answers  

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I am manjunath having exp in maintenance of chemical plants,know i want to do a design course INTOOLS,after doing design course can we get jobs in design field.sinve i dont have design exp..

0 Answers  

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Generally in which location ( JB or IO card or DCS) the thermocouple compensation is done.Also where they measure the atmosphere temp ( for compensation) in JB OR DCS panel? How they compensating that atmosphere temp? is any circuit for that ( like in rtd wheatstone bridge)?

3 Answers  

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what is preventive maintenance , explain with difination

1 Answers   Bapco Bahrain Petroleum Company,

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regarding level tx i would like to know how to select the range of the level transmitter in a closed drum(steam drum or deaerator)?

1 Answers  

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What is meant by calibration

5 Answers  

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what is the function of boiler in plant?

2 Answers   Maden,

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What is surge in compressors? How to detect and control it?

1 Answers   DEWA,

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Functions of electropneumatic valve positioner:

4 Answers  

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How process line mpm calculation is done?

0 Answers  

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