I recently started using GE products and have encountered several in my area. After making a minor logic change and verifying it, I received an error message when trying to download: "Cannot store memory. Local memory usage exceeds configured limits in _Main." The change I made involved renaming an existing "%Q09XXX" bit, rather than creating something new. I am unsure about the meaning of this error and have been unsuccessful in finding information on it. Has anyone experienced this error before and can offer any assistance? Any help is greatly appreciated!
Does the download work properly if the name is removed?
SCADA expert, Joe, suggested trying to download the file without a name. Is it possible to leave it blank or should it be renamed to a shorter name for a successful download?
When you mentioned that you changed the name, I assumed there was something significant attached to it previously. I recommend reverting the "minor logic change" as well. I'm trying to determine if your adjustment triggered the memory issue or if there is another underlying cause.
SCADA expert, Joe, noted that you mentioned "I changed the name," leading him to think there was something in it previously. He suggested undoing the "minor logic change" to troubleshoot the memory issue. He speculated whether your change triggered the problem or if there is another underlying issue at play. After consulting with someone else, it was suggested that the memory problem could be due to using a redundant PLC. It was recommended to first implement changes on the standby PLC before switching over to the live PLC. This process should then be repeated on the primary PLC. Thank you for your response and assistance!
Making simple changes in a redundant system can become more complex. General Electric (GE) has introduced various redundancy strategies over the years, so it is crucial to refer to the specific system documentation for guidance. It is important to follow the proper procedures, such as stopping the processor before downloading any changes, restarting it, and ensuring it becomes the CPU controlling the outputs. Before attempting any modifications, always consult the documentation to avoid any potential issues. If you need to make changes while the CPU is operational, you may encounter memory limitations, especially if the program block being modified is large. In such cases, GE recommends downloading the complete modified program block to available memory first, then adjusting the pointer to indicate the new starting memory location for that block.
Hi there! I encountered a similar issue once. It seems like the error you're encountering has to do with over-utilization of the controller's memory. Even though you just renamed a bit, it's the overall memory usage that counts. I'd suggest you check your Global and Retain Data, particularly looking out for large data blocks or arrays. If you indeed have these, try optimizing them. Also, cross-check for any unnecessary variable declarations left in your project. Reorganizing your code often helps in managing memory effectively. Hope this helps!
Hey, I've bumped into this error message before when using GE products. It may appear daunting, but it's basically saying that the program has used up all the available user memory. Even though you haven't added anything new - just renaming the bit, the system still needs to allocate memory to recognize the change. Try clearing some unused blocks or move to a higher memory model if your project allows. Also, check your GE documentation for guidance on memory usage and optimization. It's an intricate part of programming that we often overlook. Good luck!
Hey there! It sounds like you're running into a constraint on your PLC. This often occurs when the changes made requires additional memory that exceeds the PLC's available memory space. Pay attention to the amount of data you are trying to store - this can be easily overlooked. The renaming you're doing might be bouncing up the memory usage. In such cases, consider doing a memory cleanup or optimizing the PLC code. Before making any changes, I would recommend contacting GE support for guidance. They should be able to provide detailed steps on how to handle this issue.
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Answer: Answer: This error message indicates that the local memory usage has exceeded the configured limits specifically in the _Main section of the program.
Answer: Answer: The memory error could occur due to the logic change impacting the memory allocation within the program, especially when dealing with existing bits or variables.
Answer: Answer: To troubleshoot this error, you may need to review the memory allocation settings in the _Main section, optimize the program logic to reduce memory usage, or consult GE product documentation for specific guidelines.
Answer: Answer: Yes, others may have encountered similar memory errors when working with GE products, especially after making logic changes that impact memory allocation. Sharing experiences and solutions in relevant forums or communities can help in resolving such errors.
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