Which communication networks can be used to transfer data between central host computer and field based RTU?

Interview Q & A Industrial Automation
1

Communication networks used to transfer data between RTU and main computer are

1.Twisted Pair metallic cable 2.Coaxial metallic cable 3.Fiber optic cable 4.Power line carrier 5. Satellite 6.Leased telephone line 7.Very high frequency radio 8.Ultra high frequency radio 9.Microwave radio 10.

2

Hi…i am a new user here. The above suggested all methods can be used for communication.All have their own advantages and disadvantages. Fiber optic and Microwave is the fastest medium for communication but it is costly also.