Deck 4: Memory Organization

Question 1

Words can be made up of 32 bits, 16 bits, or 8 bits.

Answer 1

True

Question 2

A(n) ____________________ is a group of eight bits.

Answer 2

byte

Question 3

Describe how the processor files, which are created when a PLC program is written, are classified.

Answer 3

These files are classified into two general types: Program Files (User) and Data Files (Storage).

Question 4

MicroLogix processors have the same program files as the SLC 500 and three additional files.

Question 5

When a computer program is first developed and edited, it is done in the program mode or the on-line mode.

Question 6

____________________ refers to the initial value, setting, or configuration prior to any user changes.

Question 7

The key to the speed with which binary information can be processed is that there are only three states, each of which is distinctly different.

Question 8

____________________ memory is that portion of memory that will store information on the status of input and output devices, preset and accumulated values of timers and counters, internal relay equivalents, numerical values for arithmetic functions, and so on.

Question 9

For fixed I/O controllers, all of the I/O are in slot 1.

Question 10

What do PLC program files typically contain?

Question 11

What are the limitations of a hand-held computer?

Question 12

Describe the two states of binary signals.

Question 13

What is the section of storage memory set aside for output status referred to?

Question 14

Where is the programmed ladder logic stored?

Question 15

____________________ registers typically store information generated and used by the processor when it is solving the user program.