test 1 prep automation Flashcards
1
Q
what are the 4 essential functions
A
- measuring(see where your process is)
- comparing(compare where it is to where its supoosed to be)
- computing(decide how to get the process to where it should be)
- correcting(adjust the process to get it where it should be)
2
Q
what is a programmable logic controller(plc)
A
a device that collects process system data and controls the process
3
Q
what are things plc’s control
A
- traffic lights
- hvac systems
- conveyors
- lifts
- presses
- saws
- welders
- light shows
4
Q
what is a microcontroller
A
they are small computers on a single integrated circuit chip.this will contain a cpu and programmable inputs and outputs
5
Q
what is a digital signal
A
its a signal that is either on or not
6
Q
uses for a microcontroller
what they are mainly used in
A
- kitchen gadgets
- vehicle monitoring systems
- toys
- power tools
- office equipment
7
Q
what is a analog signal
A
a continuos signal and is used for inputs that require constant monitoring of variations
8
Q
what does automation refer to
A
reducing or removing the need for human input to equipment
9
Q
which is better analog or digital
A
neither
