Hello everyone, I am currently working on a project aimed at securing program memory on Omron CP series PLCs. While the manual lists various methods for implementing protection, I have decided to utilize dip switch SW1 for this purpose. However, I am unsure of the current setting of SW1 and am looking for a way to check its status in the memory without making any changes. Is there a bit address that indicates SW1's status in the memory? Unfortunately, I have been unable to locate this information in the manual. Any assistance on this matter would be greatly appreciated. Thank you in advance for your help.
Perhaps this information is from the CP1L manual, but I am unsure if it applies to the CP1H as well.
I have already reviewed the addresses in question. Activating SW1 to On in A99 did not result in any changes. These addresses pertain to the read/write protection features in PLC settings.
When pushing the SW1 to On in the A99 PLC, MonsterTR noticed no changes. This was also confirmed when testing CP1H and CP1L models, with the same outcome. Further clarification was found in the CP1H manual, which detailed that setting UM write protection by password actually sets bit A99.02, and not the DIP SW1. While only able to verify the original results, it is reassuring to know that the PLC is not malfunctioning.
Thank you for your inquiry. After reviewing the user manual for the CJ series, I was unable to locate the SW1 address. If you encounter an online edit error in cx-programmer while the write protection is enabled via the dip switch setting, it indicates that there may be a memory address associated with the dip switch status. I have also reached out to MyOmron Support for assistance and am awaiting their response.
Hi there, you've certainly got your work cut out! To check the status of SW1, you need to read the area of memory that is mapped to SW1 status. However, since you're struggling to find this in the manual, it very well may be different based on the exact model in the CP series. You could try getting in touch with Omron's technical support to get specific advice for your model, they're generally pretty helpful with this kind of query. Best of luck with your project!
Hi there! As you've noted, the Omron CP series PLC's manual doesn't provide a direct bit address to check the status of dip switch SW1. However, you may consider setting up a system flag or using a special relay associated with the dip switch if the PLC supports it. This way, you can monitor the SW1 status in your program. Remember to verify the setting in offline mode first to avoid any potential issues. I'd also suggest reaching out to Omron technical support directly. They are usually responsive to these types of questions and can provide guidance tailored to your specific model. Good luck with your project!
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Answer: - Unfortunately, there is no direct bit address in the memory that indicates the status of dip switch SW1. You may need to implement an alternative method to check its status without making changes.
Answer: - The manual typically lists various methods for securing the program memory on Omron CP Series PLCs. It would be beneficial to explore these methods as alternatives to using dip switch SW1 for protection.
Answer: - Yes, it is possible to implement secure memory protection on Omron CP Series PLCs using methods other than dip switch SW1. You may want to consider exploring alternative approaches to ensure the security of the program memory.
Answer: - Verifying the current setting of dip switch SW1 is crucial for ensuring the effectiveness of memory protection on Omron CP Series PLCs. It is recommended to find a reliable method to check SW1's status to maintain the security of the program memory.
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