Control.com - Nerds in Control
from the Eletronics department...
write protection access Siemens PLC
  |
I need to change somethings on the project but is protect as write access and i can't. is it possible to remove?
| Posted by Wiwi Hartono  on 23 May, 2012 - 4:16 am |
Do you have the copy of the original program?
Meaning, you have the project file that you could open in SIMATIC Manager?
If you do, display your program in STL and you could see that the 1st line of the program has label 'KNOW_HOW_PROTECT'.
If this line is removed, the program is no longer protected.
If you do not have the project file, you could not unprotect.
And, if you upload the program directly from the PLC which is protected, the program would remain protected and you could not view and modify the program.
Simply, you need the project file to reprogram the protected program.
Hope this help.
Meaning, you have the project file that you could open in SIMATIC Manager?
If you do, display your program in STL and you could see that the 1st line of the program has label 'KNOW_HOW_PROTECT'.
If this line is removed, the program is no longer protected.
If you do not have the project file, you could not unprotect.
And, if you upload the program directly from the PLC which is protected, the program would remain protected and you could not view and modify the program.
Simply, you need the project file to reprogram the protected program.
Hope this help.
| Posted by Peter on 15 June, 2012 - 6:45 pm |
> I need to change somethings on the project but is protect as write access
> and i can't. is it possible to remove?
Hi Marcelo,
What plc are you using? S7-200, S7-1200, S7-300 or S7-400? What cpu model? Do you have it's reference?
BR,
Peter
> and i can't. is it possible to remove?
Hi Marcelo,
What plc are you using? S7-200, S7-1200, S7-300 or S7-400? What cpu model? Do you have it's reference?
BR,
Peter
Your use of this site is subject to the terms and conditions set forth under Legal Notices and the Privacy Policy. Please read those terms and conditions carefully. Subject to the rights expressly reserved to others under Legal Notices, the content of this site and the compilation thereof is © 1999-2013 Nerds in Control, LLC. All rights reserved.
Users of this site are benefiting from open source technologies, including PHP, MySQL and Apache. Be happy.
Fortune
I have learned
To spell hors d'oeuvres
Which still grates on
Some people's n'oeuvres.
-- Warren Knox
