Hello, I'm Sri and I have some queries regarding my Mitsubishi CPU-QO2CPU. I recently transferred a program from a previous CPU to a new one. While the high-speed counter value was retained in the old CPU, it is not holding in the new CPU. Can you please provide a solution for this issue?
To ensure accuracy, check the auto refresh settings and locate the parameter for latch count registers. This is crucial for configuring the count correctly. Keep in mind that each channel requires 2 16-bit registers within the 32-bit registers. For example, for channel 1 use D600 and for channel 2 use D602. Avoid errors by configuring the second channel as D610. If you're having trouble reading settings from the upload, refer to another post addressing the same issue.
Hi Sri, it seems like there could be a compatibility issue between your new Mitsubishi QO2CPU and the previous unit. It could also be that certain settings or configurations didn't transfer correctly or at all. Check the backup data of the old CPU, especially for special marks or parameters related to high-speed counters - these may need to be manually set in your new CPU. Also, verify if both CPUs have the same software version, as discrepancies can cause such issues too. Hope this helps!
Hi Sri, welcome to the forum! The high-speed counter value issue you're experiencing with your new Mitsubishi CPU-QO2CPU could likely be due to differences in the CPU's default settings. Try checking if the high-speed counter reset settings are identical on both CPUs. Also, ensure that your program transfer was done correctly and there's no configuration discrepancy. It's crucial to consider the software version comparability between the old and new CPUs as well. Hope this helps you solve the issue. Don't hesitate to ask if you have more questions.
Hi Sri, I believe that after you transfer a program to a new CPU, the high-speed counter value may not be carried over due to the system reinitializing. It's important to manually save these values if you want to retain them after the CPU change. If you have Mitsubishi's programming software, you could use it to read from the old PLC and write to the new one, making the transfer process smoother. It might also be beneficial to check if there's a battery backup problem as this could cause issues with retaining counter values.
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Answer: Answer: When transferring a program to a new CPU, ensure that the relevant settings and parameters for the high-speed counter are correctly configured in the new CPU. Checking the programming logic and comparing it with the previous CPU settings may help identify any discrepancies causing the retention issue.
Answer: Answer: Start by verifying the configuration settings for the high-speed counter in the new CPU. Check for any differences between the old and new CPU settings that could be impacting the retention. Additionally, reviewing the program logic and ensuring proper addressing of the high-speed counter can help in troubleshooting the issue.
Answer: Answer: When transferring a program with high-speed counters to a new CPU, double-check the configuration settings, data registers, and programming logic to ensure a smooth transition. It is crucial to validate the retention of high-speed counter values during the transfer process and adjust any settings as needed to maintain functionality.
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