what is the difference between RS 232,RS 485,RS 422, how
they different from each other
Answer Posted / vinay singh
They are different in speed, Rs 232 consist of chain
structure,RS 485 and 422 are almost similar
| Is This Answer Correct ? | 0 Yes | 1 No |
Post New Answer View All Answers
I need control valve ISA hand book. Is there any site to download that big book containing all the pages. Written by Paul Friedmann
Why not come out analog output in ABB EL3020 when display show correct value
Why does a pressure gauge installed on reactor, doesn't have any vent line below to release the pressure? Is it any kind of designing mistake or it actually does not require any vent line? And if it does not require any vent line below it then how we are gonna release the pressure built inside the pressure gauge?
what will the sending unit in the fuel gauge utilizes?
what is zero and span ?
Which tank weighing system is better to install (Accuracy point of view) 1) Tank weighing system with 3 load cell or 2) Tank weighing system with 4 Load cell
What is the use of control cable?
How to Calibrate Level Troll in field
What is 1:1 redundancy ?
How a conductivity sensor & analyzer work at boiler, whats the principle & science is beyond this,How conductivity sensor sence & convert signal & move toward analyzer & analyzer show reading in percent? also what is temperature compensate option in conductivity analyzer
what is IEC code in cables & how to selecting cables?
What is rang ability?
Explain the key components of control loop?
What should be the main consideration while starting the Rotating compressor when we dont know the cut in and the cut off pressure setting of the pressure switch
Q- What are the application in which PNP transistor is preferred over NPN ?