ALLEN BRADLEY 1747-L551 PLC Processor

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Selecting Your Hardware Components
What Your SLC 500
Controller Can Do for You
The SLC 500 programmable controller has features that previously
could only be found in large programmable controllers. It has the
flexibility and power of a large controller with the size and simplicity
of a small controller. The SLC 500 controller offers you more
control options than any other programmable controller in its class.
These programmable controllers make up a technologically advanced
control system having inherent flexibility and advantages
characteristic of other programmable controllers, but with one
important difference — simplicity!
Overview of Your Modular
Control System
The basic modular controller consists of a chassis, power supply,
processor (CPU), Input/Output (I/O modules), and an operator
interface device for programming and monitoring. The figure below
shows typical hardware components for a modular controller.
Modular Hardware Components
Modular Controller
Power Supply
Processor
Module
Input Module
Output Module
Combination
I/O Module
OR
Programming Terminal
Programming PC
Chassis
Publication 1747-6.2