Troubleshooting Error Code C9322: Ladder Creation Issue in Mitsubishi PLC (FX1N-40MR)

Question:

Hello everyone, I am facing an issue with my Mitsubishi PLC (FX1N-40MR). I successfully took a backup of the PLC program, compiled it without any errors, but when I tried to download the program back into the PLC, I encountered an error message prompting me to check the program. Upon selecting 'check program' in the Tools section, I received an 'Ladder Creation Bad' error with Error Code C9322. This error appeared in multiple steps (Step numbers: 112, 5587, 5589, 5595, 5597) that were not present in the program, which only showed content up to Step 111.

Top Replies

There is a possibility that the program was initially coded in GXIEC. I have encountered this in different scenarios. Feel free to share your program and the software you used to transfer the code from the PLC, like GXDeveloper or GXWorks.

I utilized the GX Developer software for my project. Where can I find the GXIEC software for download?

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A common issue causing the program to be oversized for the RAM is the incorporation of NOP0, a known occurrence. To address this, the code has been transferred to a fresh GXworks session and saved for proper downloading to the PLC. It is assumed that the PLC type is correct, as indicated in the file sent, which specifies it is for an FX1N processor.

Upon reviewing your post once more, I noticed that the file provided is actually for GXWorks2 instead of GXDeveloper. I hope the file I uploaded can be accessed by you, depending on your software version. If you require it in GXDeveloper format, I can easily convert it for you.

It seems like there could be a file corruption issue while taking the backup or during the download. The steps mentioned in the error code are beyond your actual program steps, which is unusual. I'd recommend checking the program file size first to ensure it isn't exceeding your PLC memory size. Then, try taking another backup and cross-verify it with the first one. If the error persists, contacting Mitsubishi support might be your best bet. They are pretty good at troubleshooting such issues.

Hey there! It does sound like a tricky issue. I believe the error code C9322 usually pops up if there are some syntax errors or unwritten parts in your programming ladder. Given that you're seeing this error in steps beyond your actual programming content, there could potentially be some garbage data present in those steps. You might want to try initializing your PLC to a 'clean slate' state before downloading the program. This might help eliminate any residual or unnecessary data that could be causing these errors. Backup your current program first, though, before making changes.

Hey there! This is quite an intriguing issue you're experiencing. It sounds like your downloaded program is trying to address memory locations that don't exist on your FX1N-40MR. The error suggests that the program was initially written for a PLC with a larger capacity, and some of your rungs are referencing steps that are beyond the available range. I would suggest you to re-examine your backup or source for mismatches in PLC model. Additionally, ensure you're using the correct software version for the task. Keep us updated on your progress!

Hey, it sounds like you're facing a bit of a tricky issue! One cause could be that there might be some hidden or invisible ladder rungs in your program beyond Step 111 causing the error. Although, it's strange that they showed up in the download process and not the compile. Try checking for unseen/hidden rungs or elements in your program and delete any if they exist. If this doesn't work, it might be useful to post the specific steps where the error is occurring for us to dig deeper into it. There's always a solution!

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Frequently Asked Questions (FAQ)

FAQ: 1. What does Error Code C9322 signify in a Mitsubishi PLC (FX1N-40MR)?

Answer: Error Code C9322 in a Mitsubishi PLC (FX1N-40MR) typically indicates a 'Ladder Creation Bad' issue, which means there is a problem with the ladder logic program structure or content.

FAQ: 2. How can I troubleshoot the 'Ladder Creation Bad' error with Error Code C9322 in my Mitsubishi PLC?

Answer: To troubleshoot the 'Ladder Creation Bad' error with Error Code C9322, you can try checking the ladder program integrity, verifying the logic in the affected steps (112, 5587, 5589, 5595, 5597), and ensuring that there are no missing or incorrect instructions.

FAQ: 3. Why am I encountering the 'Ladder Creation Bad' error when trying to download the program back into my Mitsubishi PLC (FX1N-40MR)?

Answer: The 'Ladder Creation Bad' error during program download could be due to inconsistencies or errors in the ladder logic program, such as missing or incorrect instructions in the mentioned steps (112, 5587, 5589, 5595, 5597). Checking and correcting these issues may resolve the error.

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