Answer / raghav

Profibus is siemens propritary protocol, where as RS 485 is
standard multidrop serial communication (it's hardware), we
have communication for RS 485 profibus available in the
market

Answer / rajesh

profibus is best because its data rate is fast when fibre
profibus is used

SOME OF YOUR QUESTIONS ARE NOT MAKING ANY SENSE SO TRY AND PUT IN A LITTLE BIT MORE EFFORT BEFORE YOU POST A QUESTION. WE WILL ONLY HELP THOSE WHO WE CAN SEE ARE TRYING TO HELP THEMSELVES.

0 Answers  

---

What is electronics?

6 Answers   ITC Infotech,

---

while i check zero check for dp flow transmitter some fluctuating came (0 to 458 kg/h) what is the reason?

0 Answers   Petronas,

---

how can i communicate with non-national instruments device with pc via labVIEW8.2

3 Answers   Google, Mico, National Instruments,

---

what does a positioner in control valve ?

11 Answers  

---

What is the purpose of MATLAB?

3 Answers  

---

In dcs contol valve parameters showing like this Gain=1 or 2 , ti=7 sec, td=20sec. But temp,pressure,level control valves we are using in which type parameter side using ti,td clearly tell me

1 Answers  

---

Why Flow measure in Square-root?

12 Answers  

---

what is the full formof HART

7 Answers  

---

can we use a control valve without positioner

19 Answers  

---

Difference between 2-Valve Manifolds, 3-Valve Manifolds and 5-Valve Manifolds 3 with diagram

0 Answers   Acire Systems,

---

Why we use 3-15 psi air for control valve input?

2 Answers  

---