Rockwell Automation 1747-PTxx Getting Started Guide for HHT - Manual (Page 9)

Chapter 1
Setting Up Your Equipment
1–2
The SLC 500 comes in two different styles: modular and fixed. These styles
are shown below. The modular controller consists of a rack, power supply,
processor (CPU), and Input/Output (I/O) modules. The fixed controller
consists of a power supply, processor (CPU), and a fixed number of I/O
contained in a single unit. You can add an expansion rack to the fixed
controller.
SLC 500 Modular Controller
Power Supply
Processor
Input Modules
Output Module
Output Terminals
Input
Terminals
Processor (CPU)
Power
Supply
SLC 500 Fixed Controller
Slot 0 1 2
3
Slot 0
Further information on hardware is found in the Installation and Operation
Manuals, Publication 1747–800 (fixed controllers) and 1747–804 (modular
controllers).
Controller Styles