Input and Output (I/O) Types Flashcards
1
Q
What type of input is the opposite of a discrete input?
A
Analogue input
2
Q
How much current does a PLC input terminal typically take?
A
a few mA
3
Q
Why are Triacs more widely used than relays for PLC outputs?
A
They are good for more operations
4
Q
What type of output module can switch several different sources of supply?
A
An isolated output
5
Q
What are two situations where an interposing relay might be used?
A
Loads with high voltage or high current requirements
