Answer Posted / 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
| Is This Answer Correct ? | 5 Yes | 0 No |
Post New Answer View All Answers
how do calibrate the valves.. with clear manual
define feed forward control loop with example and drawing?
how do u calibrate the vacuum transmitter if it shows more reading
Hi i am aneesh, done btech in applied electronics & instrumentatiin. And then i took mba in finance & marketing.After that i got placement in finance co and worked there for 3.5 yrs.Now i wanted to come back to engineering job.But without engg experience, i may not able to find an opening.i have done a course related to flow meters and ite calibrations. Kindly suggest where should i try to get a job?
How d.p. Transmitter can be applied to close tank?
Why is it necessary to use compensation leg to measure the liquid level in a closed or pressurized tank?
How we calculate orifice plat size???
What are de-saturators?
What is frequency factor in massflow meter? When using frequency output?
I need control valve ISA hand book. Is there any site to download that big book containing all the pages. Written by Paul Friedmann
Draw a complete P&ID of a flow suction tank indicating all control & protection equipment. Indicate all its inlets and outlets. Explain the controls for this system
What is first echo & echo window in radar type level transmitter?
For crude application in floating roof tank, how to calibrate a DP Transmitter? How is the floating roof weight considered?
Which topics are covered in Process Control?
kindly sent some demo question and answer