Multiplexing Flashcards
(2 cards)
1
Q
Explain thumbwheel switch
A
Consist of complicated switching mechanism that gives a BCD output on four output lines corresponding to the decimal number selected
2
Q
How to display a decimal number
A
To view data from PLC in decimal to ease on people.
Using 7 segment decoder for 7 segment display devices, can be LED or LCD type
