Allen-Bradley 1772-LZP Mini PLC-2/02 processor

Allen-Bradley 1772-LZP Mini PLC-2/02 processor

Description

The first section of a programmable controller is the processor. The processor might be called the “brains” of the programmable controller. It is divided into halves:

• central processing unit
• memory

Central Processing Unit：

The Central Processor Unit (CPU) makes decisions about what the processor does according to the program you write.

Memory：

• Memory serves three functions:
• stores information in the data table that the CPU may need
• stores sets of instructions called a program
• stores messages

Data Table：

The area of memory where data is controlled and used, is called the data table. The data table is divided into several smaller sections according to the type of information to be remembered. These smaller sections are called:

output image table

input image table

timer/counter storage

Technical Specifications