From the course: PLC Memory Organization
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Tag-based system - Ladder Logic Tutorial
From the course: PLC Memory Organization
Tag-based system
- [Instructor] Unlike the rack-based system that uses a fixed location and predefined data tables for each data type, the tag-based memory structure is a flexible memory structure, meaning that there are no fixed areas or predefined data tables in memory allocated for IO addresses or other types of data. So for tent-based memory structures, you can use and assign any area within the memory and associate it with the type of data you want. Now, having this flexibility allows you to arrange the memory to meet the needs of your application rather than requiring your application to fit a particular memory structure. The internal memory configuration of the controller is done by the user when creating a project for that controller with RSLogicx5000 software. A project is simply a term used to refer to a file that RSLogix5000 software uses to store the controller program data and configuration information. It is a way to organize…
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