How to set up automatic address allocation on the CS/CJ series

Benefits of using automatic address allocation

In traditional PLC programs, CIO and DM addresses had to be assigned manually for each variable. With automatic address allocation you can program using only variable names, reducing the effort of managing addresses and duplication mistakes. Maintainability improves especially in large programs.

Overview

A function that automatically allocates variables to a specified memory area without specifying addresses. The memory area for automatic allocation is set in [PLC] - [Memory Allocation] - [Automatic Address Allocation] as shown below

When setting 1000 hex from CIO5000 as the automatic allocation area

Set the memory areas that are not used

Once automatic allocation is set, specifying addresses by variable name when entering ladder allocates addresses automatically.

Automatically allocated addresses can be checked in the location below or in the variable table. However, when programming with variables, you do not need to care where they are allocated.