PLC Analog

Question 1

What function does an Analog Input Module perform?

Answer 1

It converts analog signals into digital data

Question 2

Analog signals can be converted into digital information using a PLC analog module, true or false?

Answer 2

True

Question 3

What function does an analog sensor or transmitter perform?

Answer 3

• It measures a process variable and sends a signal to the PLC

Question 4

What are analog sensors and transmitters used to measure?

Answer 4

Physical parameters of a process or environment

Question 5

What can Electrostatic Fields cause in a PLC system?

Answer 5

Measurement Signal Error

Question 6

What are the available analog signals?

Answer 6

0-10V_DC

4-20mA

Question 7

What function does an Analog Output module perform?

Answer 7

Converts digital data into an analog signal

Question 8

A 4-20mA level sensor is capable of measuring the level in a tank between full (10 meters) and empty (0 meters). What is the level in the tank when the sensor is transmitting a 12mA signal back to the PLC?

Answer 8

5 Meters

Question 9

What are the two most common methods of transmitting analog signals to and from a PLC?

Answer 9

1. Voltage = 0-10V_DC
2. Current = 4-20mA

Question 10

Analog modules must be either input or output modules, not a combination of both. True or false?

Answer 10

False