Asked by Justice Johnson on May 09, 2024
Verified
For the program shown, the thumbwheel switch is connected to a ____ input module. 
A) BCD
B) discrete
C) PID
D) LED
Thumbwheel Switch
"A rotating switch used to input numeric information into a controller."
Input Module
A hardware component in a control system that receives and processes external signals for use within the system.
BCD
Binary Coded Decimal, a class of binary encodings where each digit of a number is represented by a fixed number of binary bits, commonly four or eight.
- Familiarize with the elementary aspects and operations pertinent to data movement in programmable logic controllers (PLCs).
Verified Answer
ZK
Zybrea KnightMay 09, 2024
Final Answer :
A
Explanation :
The thumbwheel switch, which allows the user to input a numerical value, typically outputs a binary-coded decimal (BCD) signal. Therefore, it should be connected to a BCD input module to properly interpret and utilize the input values. The other options (discrete, PID, and LED) are not relevant for this type of input.
Learning Objectives
- Familiarize with the elementary aspects and operations pertinent to data movement in programmable logic controllers (PLCs).