I have come across similar topics regarding this issue, but I have not yet found a solution. In my WinCC discrete alarm tab (refer to the attached pictures), I am unable to locate the "trigger address" even after right-clicking on the tabs to add it. Additionally, how can I determine which trigger bit corresponds to which DBx address? All my warnings are in DB51 and alarms in DB50. I am struggling to match the trigger bit with the DBx address through counting. How does a trigger bit get assigned to a specific DBx address? Is there a way to view this information? Thank you for your assistance.
It has been quite some time since WinCC Flex, but from my observations, it appears that the trigger bit is positioned at an offset from the start of the tag. I suspect that if the trigger bits are of significant size, the tags may be organized as an array of bytes. To determine the new offset, one would need to refer to the Tags list to identify the starting address of the tag, and then calculate by dividing the trigger bit value by 8. This will give insight into the updated offset value.
Apologies for the delayed response, I just recently tested it. Your answer helped me find a Wincc that displayed the "trigger address," making everything clear now. Included below are additional photos that could be beneficial to others.
To easily add a new tab, simply right-click on any empty space within the browser window.
I attempted to access that feature in recent weeks, but unfortunately, it was not available. It seems like it may have been omitted from an older version, so I will verify this. However, after installing Wincc flexible advanced 2008 sp3 and sp5, I was able to locate the option I needed. Thank you for the assistance.
I wanted to inform you that the screenshot above is from a project I am currently revamping for a client. I am currently working on it using 2008 SP2 Upd10.
From what I understand, the assignment of trigger bits to DBx addresses is primarily a function of your PLC programming. It's not something you typically discern through the WinCC interface itself. When programming your PLC, specific bits within DB50 and DB51 are intentionally set to trigger alarm states. For correlating which specific bit triggers which alarm, you would need to refer back to your PLC programming documentation. There you should find a defined list of your alarms and corresponding bits. Also, remember that numbering in PLCs often starts from 0, not 1, which might be causing some confusion when counting. Hope this helps!
From your description, it seems like you may be having trouble setting up alarm assignments in WinCC. Notably, the assignment of a trigger bit to a DBx address is dependent on the way your PLC program is written. Each alarm, in this case, should be associated with a specific bit of your DBs (DB50 for alarms, DB51 for warnings). Therefore, the 'trigger address' would be the direct address of this bit in Step7 ('DBx.DBXy.z' format). For instance, if the first alarm corresponds to the 3rd bit of DB50, the address would be 'DB50.DBX0.2'. Unfortunately, I am not aware of a feature within WinCC that directly shows this information, so manual coordination with your PLC program is necessary. It may help to maintain a document to keep track of associations. If someone else on the forum has a different solution, feel free to chime in.
It sounds like you're going through a tricky situation with your WinCC. For your first issue, the "trigger address" might not be accessible depending on your system configuration. You may need to check your system settings or possibly even reach out to the software vendor for specific advice. As for your second problem, the correlation between trigger bit and DBx address generally depends on how your control system has been programmed. Typically, a particular bit will trigger an alarm if it corresponds to a specific condition being met, and this should ideally be documented within the code or related documentation. An alarm's DBx address usually comes from the allocation of memory to variables in the PLC. Without being directly involved with configuration and coding, it's hard to say definitively. You may need direct help from someone familiar with the specific setup/span>
Hey there! As a regular WinCC user, I can tell you that it's not always straightforward to find the 'trigger address' in the discrete alarm tab. It's not located in a right-click menu, but rather in the properties editor for each discrete alarm. As far as matching the trigger bit with the DBx address, keep in mind that the trigger bit is usually assigned directly in the PLC program; it's not something that you typically handle within WinCC itself. That said, you can often match the alarms and DBx addresses based on the sequence they were declared in the PLC program. I hope this helps, and let me know if you have any other questions!
It sounds like you're facing a bit of a challenge with linking your trigger bits to the right data blocks in WinCC! One approach you could try is to check the GSD file or the hardware configuration for your specific PLC, as it often contains mapping information that could clarify which trigger bits are associated with your DB addresses. Additionally, if you haven't already, you might want to explore the WinCC project settings or any associated documentation for specific guidelines on alarm and warning configurations, as they can sometimes provide useful insights into how trigger addresses are defined. If all else fails, reaching out to Siemens support or their user community can be a great resource; they might have encountered the same issue and can offer a workaround or solution. Good luck!
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Answer: 1. How can I locate the trigger address for alarms in WinCC? - To locate the trigger address for alarms in WinCC, you can right-click on the discrete alarm tab and try to add the trigger address. If you are unable to find it, there may be other methods or settings to consider.
Answer: - To determine which trigger bit corresponds to which DBx address in WinCC, you can check the settings or configurations within WinCC related to alarm triggers and database addresses. It may involve understanding how trigger bits are assigned to specific DBx addresses.
Answer: - Matching the trigger bit with the DBx address in WinCC may require manual counting or looking for specific settings within the software that indicate the mapping between trigger bits and database addresses. It could also involve understanding the logic behind how trigger bits are assigned to specific DBx addresses.
Answer: - The assignment of a trigger bit to a specific DBx address in WinCC is typically defined through configurations or settings within the software. Understanding these configurations and settings can help in determining how trigger bits are assigned to specific DBx addresses.
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