Rockwell Automation 1747-L40 SLC 500 Fixed Hardware Style - Manual (Page 21)

Chapter 1
Selecting Your Hardware Components
1–2
The basic fixed controller consists of a processor with 1,024 (1K) instruction
capacity, a power supply, and a fixed number of I/O contained in a single
package. The figure below shows typical hardware components for a fixed
controller.
Input Module Output Module
Operator Interface
Fixed Controller with 2-slot Expansion Chassis Fixed Hardware Components
2-Slot Expansion Chassis
for I/O Modules
Fixed Hardware Controller
Overview of Your Fixed
Control System