Please explain for RS 485 & RS 232 communication
- 1 Answers
- 3584 Views
- Honeywell, I also Faced
- E-Mail Answers
Answer Posted / smita
RS232 is a full duplex cable means both transmitting and receiving happens at a time due to this noise will be more so that we can't go for longer distance
RS484 a half duplex cable means in a single time either transmitting or receiving will happen so we can go for a longer distance without disturbance
| Is This Answer Correct ? | 9 Yes | 0 No |
Post New Answer View All Answers
Explain the working principle of lvdt?
Turbidity analyzer working principle ?
Tell me the field calibration procedure step by step with diagram of pressure gauge, pressure switch, pressure transmitter, temperature switch, level switch, flow switch, flow transmitter.
Calculate the maximum pressure drop that can be allowed to occur across a control valve, so that we can prevent cavitation / flashing from occurring. Use the following formula: Δ P allow = Km (P1 – PvapourA) where, Δ P allow - the maximum allowable differential pressure for sizing purposes, or terminal pressure drop; Km- the valve recovery coefficient from the manufacturer’s catalogue; P1 - absolute inlet fluid pressure; PvapourA - absolute fluid vapour pressure at the inlet temperature; Use Atmospheric pressure = 101.3 kPa, P1 = 1200 kPa(g), PvapourA = 4 kPa, KM = 0.72
What is the difference between mmwc and mmwg?
Derive capacitance to 4-20ma conversion formula / relation in capacitance type pressure sensor?
How do you identify between actual alarm and false alarm in a Temperature Transmitter in SCADA based Control System
Sir, I am working as a Instrument Engineer in Grasim Industries. Can any body provide question answer for interview purpose
For what reason would you possibly be compelled to make use of a Smith Predictor. Explain the idea behind the operation of this device.
can anyone can let me know in Eurotron Micro cal 2+ calibrator in milli amps source mode we are not able to get 20 milli amps output it only produces 1.52 milli amps out, but display shows increase in milli amps , and err6 displays, let me know how to remove the err 6.
If a control valve is hunting means means if we are giving 50% to the cv, the cv will open at 51% then slowly slwoly it will reaches 49% , so what to do for solve this problem. The cv is double acting and mounted for anti surge operation, it having 4 nos. volume booster, one sov, one positioner, etc..?
for oil & gas industries which zone is normally preferred? why? give its example?
Why boiler chimney area oxyden sensor fixing?
what would be the minimum flow rate that we can measure on rotameter..?
A flange is used for instrument connection for a system with a design temperature of 316C (600F) and a design pressure of 1000 kPa (145 psi). What is the class rating of the flange to be used for this application? Explain your answer
