jignesh patel


{ City } baroda
< Country > india
* Profession * sr.project
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Questions / { jignesh patel }
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how can you set a zero and span of transmitter?

Rockwell,

1 Instrumentation 5017



Answers / { jignesh patel }

Question { NSL, 7978 }

What is Fieldbus?


Answer

field bus is a digital communication link between field
instruments and process control system like DCS,now a days
field bus is widely used for transmitting of signals
The type of field bus is...
1.Modbus
2.Profibus
3.Foundation fieldbus
4.CAN
5.Profinet
6.Ethernet.

Is This Answer Correct ?    6 Yes 1 No

Question { 9559 }

modbus and profibus communication difference?


Answer

The philosophy for modbus and profibus is same.....the
difference is
1.modbus you can go up to 1200m only in the case of profibus
you can go up to 2-5 km.
2.In modbus the speed will be 125kbs where profibus it will
be 1.5 mbs to 12mbs.
3.In modbus you can connect maximum 32 devices for RS485
where in Profibus you can go upto 127devies without repeater.

Is This Answer Correct ?    18 Yes 4 No