7/13/2014 3:01 AM | |
Joined: 9/27/2006 Last visit: 9/22/2024 Posts: 12282 Rating: (2685) |
Hello Franklin; Have a look at the fpollowing FAQs, they explain different mechanisms to protect the program blocks individually or limit access to the CPU: Program blocks: “Know-how-protect” or S7-Block Privacy (with Step 7 5.5) Password protection levels of a S7-300/400 CPU: How can you activate the protection level with a password in the HW Config for an S7 CPU? Hope this helps, Daniel Chartier |
7/13/2014 2:43 PM | |
Joined: 9/27/2006 Last visit: 9/22/2024 Posts: 12282 Rating: (2685) |
Hello Franklin; You could always do a manual "Compare Online/Offline blocks" operation when you suspect a block has been altered, but this cannot be automated directlyin Step 7, and the results can be confusing at times. You need to do it a few times before you understand what is important in the information provided. Do a search on "Compare Blocks" using the Search Box at the right of this page to see various threads on the subject. There are some Siemens and third-party softwares available that could help you out such as these: SIMATIC Version Cross Manager V7.1 Information for a Version Control Software But I have not used them in my projects myself; generally I prefer limiting access to the blocks or to the CPU if I can implement it, and at the same time organizing a version change log that all authorized operators must follow in the plant. Hope this helps, Daniel Chartier |
Last edited by: dchartier at: 7/13/2014 3:30 PM |
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