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Created by: paranthaman_m at: 8/24/2011 12:06 PM (5 Replies)

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8/24/2011 12:06 PM	Rate (0)
paranthaman_m Bronze Member Joined: 6/29/2011 Last visit: 5/7/2023 Posts: 127 Rating: (0)	HOW CAN I OPEN PROTECTED BLOCK IN S7 PROGRAM
	param
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8/24/2011 12:10 PM	Rate (0)
MM1234 Posts: 270 Rating: (52)	HELLO PARANTHAMAN, HAVE YOU CHECKED THIS THREAD (PARTICULARLY THE LAST POST)? /tf/WW/en/Posts/43942
MM1234 Posts: 270 Rating: (52)	Last edited by: MM1234 at: 8/24/2011 12:18 PM JUST WANTED TO MAKE ONE THING CLEAR
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8/24/2011 12:12 PM	Rate (1)
Marcjan Platinum Expert Joined: 4/22/2010 Last visit: 12/15/2022 Posts: 5697 Rating: (706)	Siemens only provided a way to protect your own blocks, no tool to unprotect if you do not have the original source code. Regards, Marcjan
	Problem solved? Please let us know! Please no technical questions by PM, use the forum sections for your questions.
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This contribution was helpful to 1 thankful Users MM1234

8/24/2011 12:22 PM	Rate (0)
paranthaman_m Bronze Member Joined: 6/29/2011 Last visit: 5/7/2023 Posts: 127 Rating: (0)	SIR in my sample program , FB 22,33,41,42 FC 10,40 this block are protected i don't know how to open this block's.i tryed this 1. Click on"Source" in the left hand side of the Simatic manager program. 2. Open FC1 "The protected FC" 3. Then erase the text " KNOW_HOW_PROTECT" 4. Save and comple and return back to the blocks and you will found the FC became un protected.
	param
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8/24/2011 12:43 PM	Rate (1)
MM1234 Posts: 270 Rating: (52)	Dear Paranthaman, I don't know if that wasn't clear from the previous posts, but whenblocks are set protected, it's for a reason and that reason is usually fact, that the creator of such block does not want it to be revealed. You should be happy enough that you are allowed to use the block. How would you feel if you worked hard to make a useful and handy code blocks and then allowed others to use them, all you wanted was that bit of a privacy, of that respect from the users, that the code of it would remain yours, so others couldn't twist it, sort of "assimilate" it and all people you let this use, people you made this for would just step all over that and try to crack it and break it down. Curiosity has it's own borders and those are the rights of others.
MM1234 Posts: 270 Rating: (52)	Last edited by: MM1234 at: 8/24/2011 12:44 PM when posts are protected... right :] fix''''d
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8/24/2011 10:42 PM	Rate (2)
dchartier Grandmaster-Expert Joined: 9/27/2006 Last visit: 5/28/2023 Posts: 12024 Rating: (2594)	Hello Paranthaman; I would like to add another aspect to MM1234's last post. When Siemens (or anyone else using the Know-How-Protect technique) develops a standard block, it is designed in such a way that anyone using it (from a Support webpage dowload or a copy/paste from another project) can always expect the same interface and the same functionnality. Allowing anyone to open it at their own time would incurr the risk of code modification (even by error), which would mean that instance of the block would no longer act the same as expected. Non-standard code could introduce confusion and problems down the line, especially for maintenance purposes. Better you learn to use these standard blocks as they are designed by the original programmer, and if you have a specific need in your projects for a specific bit of code program it yourself, save the source code in a safe and accessible location, and then protect your block (with Know-How-Protect or the newer v 5.5 algorithms) to make sure no one else modifies it. Hoep this helps, Daniel Chartier

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This contribution was helpful to 2 thankful Users Marcjan MM1234

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