PLC Chapter 2 MIDTERM (WIP)

What is the unit for measuring the speed of serial communication?

Baud rate

DC I/O modules are always sourcing and never sinking.

False

Only one chassis size is available for modular SLC 500 series processors: a 7-slot rack.

False

The PLC's Forced mode could never cause injuries.

False

In what type of PLC are the processor (CPU), power supply, and I/O modules in a single housing?

Fixed

What is serial communication?

One bit of information is transmitted at a time

Which of the following is best described as communication in only one direction? (Only one device sends and one receives.)

Simplex

PLC ports are typically rated for _________ amperage (current

high

A parity bit check is used to find transmission errors

True

PLCs are environmentally hardened: they can withstand dust, extreme temperatures, humidity, and electromagnetic noise

True

The power supply connects to the side of the chassis and provides power to the chassis backplane

True