After replacing the battery on my old SLC 5/04, I expected a 30-minute charge in the capacitor. However, upon restarting, the fault light on the card is now illuminated and I am unable to connect in RSLogix. The error message displayed is "DiagnosticStatus Failed 0x4". Despite showing up in RSLinx and indicating packets sent and received, the PLC is not functioning properly. Just the other day, I was able to connect without any issues using a DH+ to a PCMCIA card in my computer. Thank you.
After power cycling, the issue was resolved successfully. Uncertain about the possibility of deleting this post.
It's imperative to keep this valuable information. It's reassuring to see it functioning properly following the usual troubleshooting steps.
Encountering the same problem, but a power cycle did not resolve it.
Hershfam reported experiencing a similar issue that was resolved after power cycling the device. It is believed that the device may have lost its IP address. By setting the IP with BootP and re-downloading the program to the PLC, the issue was successfully resolved and the device has been running smoothly for a week.
Hershfam mentioned that the device may have lost its IP address. By using BootP to reset the IP and redownloading the program to the PLC, the device has been operating smoothly for a week. Make sure to deactivate BootP to prevent the IP address from getting lost again after the next power cycle.
It sounds like there could be several things causing this issue. However, a common problem following a battery replacement in SLC 5/04 devices is that the communication settings can get wiped. This could cause difficulties with connecting if they were not manually set again. You might want to verify your device's settings and ensure they match what you're using in RSLogix. Also, the DiagnosticStatus Failed 0x4 error can sometimes be resolved by double-checking your cables connections and ensuring they're firmly in place. Wishing you the best of luck – troubleshooting PLC issues like this can certainly be a trial and error process!
It sounds like you've run into a frustrating problem. The issue might come from a mismatch in the settings or a bad connection. Ensure that your communication settings, device driver, and the used port are correctly set in RSLogix and RSLinx. Also, carefully re-check the cabling and connections. You could also try replacing the PLC to see if the issue persists, as this could help you troubleshoot whether the problem is software or hardware related. Another approach is to clear the processor memory and download the program again. Remember, always backup your programs before doing this. If everything fails, you might be dealing with a faulty card where a replacement might be the only solution. Good luck!
It sounds like you're dealing with a tricky situation here. One common cause for the DiagnosticStatus Failed 0x4 error could be a hardware communication issue, especially considering things were functioning fine just a couple of days ago. Given that RSLinx is still sending and receiving packets, the communication path doesn't seem completely broken. The problem could also lie within RSLogix, perhaps due to software version mismatches. One suggestion I have is to double-check that your DH+ and RSLogix versions align correctly and are compatible with your PLC model. If all else fails, consider calling an Allen Bradley tech or service rep - they're usually quite helpful in diagnosing these kind of issues. Best of luck!
It sounds like you're dealing with a tricky situation! The "DiagnosticStatus Failed 0x4" error typically indicates an issue with the configuration or communication in the PLC. Since you just replaced the battery, it's possible that the settings saved in memory may have reset or been lost, so double-checking your configuration parameters might help. Also, ensure that the capacitor is fully charged and functioning properly—sometimes, if it's not holding a charge, it can cause issues. If you haven’t already, try power cycling the system once more after ensuring everything is securely connected. Good luck!
It sounds like you're facing a tricky situation! The “DiagnosticStatus Failed 0x4” can often indicate a communication issue or a failed diagnostic check on the processor. Given that you're seeing the fault light and the connection issue in RSLogix, it might be worth double-checking your wiring and connections—sometimes a simple loose connection can cause a cascade of problems. Also, if it was working fine before the battery swap, ensure that the capacitor charged fully and that any settings were not reset during the process. If you haven’t already, you might want to look into replacing the capacitor or checking the processor board for any corrosion or damage that might have been exacerbated during the battery change. Good luck, and I hope you can get it back up and running soon!
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Answer: 1. Why is the fault light illuminated on my SLC 5/04 PLC after replacing the battery? - The fault light may be illuminated due to issues related to the battery replacement process or capacitor charging.
Answer: - The error message "DiagnosticStatus Failed 0x4" indicates a specific diagnostic failure within the PLC system.
Answer: - Issues with the capacitor charge or other post-battery replacement adjustments may be affecting the ability to connect to the PLC in RSLogix.
Answer: - Troubleshooting steps may include checking the battery replacement process, verifying capacitor charging, and examining any recent changes that could have caused the issue.
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