In what way is program control superior to wired control, Electrical Engineering

Q. Classify switching systems. In what way is stored program control superior to hard wired control?

Ans:

Classifications of switching systems are givenin block diagram below:

The SPC gains superiority over hard wired due to following points:

SPC

Hard Wired Control

Flexible

Not Flexible

Slower  

Faster

More expensive for

moderate processing

functions

 

Less expensive for

Moderate, simple and fixed

Processing functions

Easier to implement,

Complex Processing

functions

 

Difficult to implement,

Complex processing functions

Introducing new services

is easy

 

Introducing new services is

not easily possible

Easier to maintain 

Difficult to maintain

Posted Date: 8/24/2013 2:20:57 AM | Location : United States







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