Digital inputs modules

Is the principle of digital signal operation based on 0 and 1?

• Yes

• No

Does the value of the analog signal change over time?

• No

• Yes

What is the name of the component that protects and creates optical isolation?

• Transistor

• Diode

• Inverters

• Opto-isolation

A switch that does not conduct current in its normal state is:

• NC

• NO

A switch that normally conducts current is:

• NC

• NO

The sensor can have two types: NPN and PNP, is this correct?

• NO

• YES