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s7 300 cpu password protection

Created by: veer at: 3/16/2013 6:29 PM (13 Replies)

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3/19/2013 8:48 AM	Rate (0)
glatocha Posts: 11 Rating: (0)	If writing the program takes only 1 month, then I would say it is very small app. The good way to protect yourself is by means of fixing the app to work only on supplied by you MMC card and PLC. You can do it by reading MMC serial number with SFC51. Write to the software the MMC number (and some spare if you supply) and protext that block. I protect the block without decompilation data. So you need a backup first. Here is about SFC51: https://support.automation.siemens.com/WW/llisapi.dll?func=cslib.csinfo&objId=62121529&load=treecontent&lang=en&siteid=csius&aktprim=0&objaction=csview&extranet=standard&viewreg=WW Plenty about this you will find also on the forum.
glatocha Posts: 11 Rating: (0)
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8/4/2013 5:23 PM	Rate (0)
veer Posts: 103 Rating: (0)	umencho sorry to take long time to start our discussion again i m now on site so i am attaching dignostic buffer image , problem is again same when i set read write protection it says "end of synchronisatio with distributed i/o" i am still not able to set protection. plz give me direction to make it possible. thanks Attachment untitled.JPG (581 Downloads)
veer Posts: 103 Rating: (0)	Last edited by: veer at: 8/4/2013 5:33 PM
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8/26/2017 10:05 AM	Rate (0)
Automaion Posts: 6 Rating: (0)	That is good privicy for running project or machine...
Automaion Posts: 6 Rating: (0)
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1/23/2019 8:23 AM	Rate (0)
scofild Member Joined: 11/18/2017 Last visit: 1/13/2025 Posts: 2 Rating: (0)	yes iam tried this before thanks

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