Data/File Too Large, Memory Unavailable

What does F009 mean?

This error signifies that the data or file being processed is too large to fit into the available memory on the device, or the memory itself is unavailable. This prevents operations like loading, saving, or processing large datasets.

• Attempting to load a program or data file exceeding processor's available memory.
• Insufficient free memory due to other running applications.
• Memory corruption or hardware failure making memory inaccessible.

Click steps to track your progress.

1. 1

   Verify current PLC memory utilization using the programming software (e.g., Studio 5000 Logix Designer, RSLogix 500) to check the percentage of program and data memory currently used by the controller.

2. 2

   Inspect PLC project logic and data structures for large routines, extensive data tables (e.g., large arrays, numerous UDT instances), or unnecessary tags contributing to high memory usage.

3. 3

   Check controller specifications against the current memory usage to confirm the documented maximum program and data memory limits for the specific Allen-Bradley Logix/SLC PLC model.

4. 4

   Examine recent program modifications in the project revision history to identify any changes that significantly increased the project file size or added substantial logic/data.

5. 5

   Verify available memory after a controlled controller power cycle (if safe and acceptable for operational context) to rule out transient memory fragmentation or temporary unavailability.