PLC Memory Organization

Find out how to optimize processes in PLC based on data. Learn details of data storage, how storage interacts with input and output, and how to approach memory structures.

Introduction

• Memory organization for PLCs
• What you should know before watching
• LogixPro PLC software simulation

1. Processor Memory Organization

• Allen-Bradley PLCs types
• Allen-Bradley PLCs memory structures

2. Rack-Based System

• Rack-based systems
• Program files
• Data files: Part 1
• Data files: Part 2
• LogixPro demo
• I/O address format for rack-based PLC
• Data storage 16-bit words

3. Tag-Based System

• Tag-based system
• Project file components overview
• Tags in PLC
• Tags types for ControlLogix controllers
• Global and local tags
• Addressing format for tag-based systems
• Base and Alias tags

Conclusion

• Next steps