Hello, this is my first time working with Allen Bradley PLC's and I am encountering major faults on an SLC 500 series CPU, specifically an SLC5/01. Upon checking the goto error, it is indicating a Major Error Halt with the message S: 1/13. The error also specifies a Major error code S:6=351h that needs to be corrected for the fault to be cleared. I have already replaced the input card 1746-IV16 but am still unable to clear the error. I am seeking guidance on how to clear this condition and would greatly appreciate any assistance. Thank you!
The error message indicates a "stuck" runtime error on I/O module 3, prompting the replacement of the input card. Thank you.
One common practice in my industry is to set a bit S:1/8 during power up to clear faults. This helps in ensuring smooth operation and avoiding unnecessary disruptions. While there may be some situations where retaining a fault is necessary, in most cases, it is best to clear faults at startup. In the absence of a key switch on the 5/01 model, users can go online with RSLogix 500 to manually clear faults using menu options if the bit is set to "0". However, if there is a different fault or if the new card is also faulty, the CPU will fault again immediately. It's important to note that sometimes a SLC may inaccurately identify the slot as the source of a fault, which has been observed multiple times in the field.
In the world of tech troubleshooting, it is not uncommon for a System-Level Change (SLC) to mistakenly pinpoint the wrong slot as the source of a malfunction. In my professional experience, this scenario has occurred multiple times. Interestingly, I have yet to witness an SLC accurately determining the problematic card.
Hey there, welcome to the world of Allen Bradley PLC's! It sounds like you've faced quite a hurdle for your first go-around. The error S: 1/13 generally points to a faulted or bad processor. However, before you decide to replace the CPU, disconnect any peripheral devices or communication links and then attempt a power cycle. Now, if the error persists, replacing the processor might be necessary. Regarding the specific fault code S:6=351h, it is often related to faults in your Analog I/O. You've mentioned replacing the input card 1746 -IV16, but ensure you properly configured the new card. Incorrect configuration might still trigger the fault. It's also worth noting that the issue might not be isolated to this specific card, so consider checking your other I/O cards as well. Best of luck!
Hello! It seems like you've already done a fair bit of troubleshooting, so well done for that. Error S:1/13 on an SLC 500 often points towards a programming error within your ladder logic. It's possible that a division by zero, or a logic addressing error is present. Check your program code for any loops that may be causing unreasonable calculations or operations. As for error code S:6=351h, this typically indicates an issue with a structure or UDT mismatch, which signifies that the PLC is processing data differently than anticipated. I'd suggest you check and verify if you've got any mismatches in your structured data types. Hope this helps!
Hi there! It sounds like you're dealing with a tricky situation. The Major Error Halt you're seeing, especially with the code S:6=351h, typically indicates a fault related to the processor's communication or configuration. Have you checked the configurations for any of the other I/O cards, or perhaps looked into any termination issues with the network? Sometimes, recycling power to the PLC after addressing hardware changes can help clear these errors as well. If the issue persists, it might be worth checking the program for any unexpected behaviors that could be causing the fault. Good luck!
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Answer: Answer: The S:1/13 Major Fault Error Halt indicates a major fault condition in the Allen Bradley SLC 500 Series CPU, specifically in this case, the SLC5/01 model.
Answer: Answer: To clear the fault related to the Major Error Code S:6=351h, troubleshooting steps need to be undertaken to identify and rectify the underlying issue causing this error.
Answer: Answer: Troubleshooting steps may involve checking connections, reviewing the program logic, inspecting hardware components, and ensuring proper configuration settings to resolve the S:1/13 Major Fault Error Halt in the Allen Bradley SLC 500 Series CPU.
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