Level 4 password protected S7-200 CPU 226

SIMATIC S7-200/300/400, Step7, PCS7, CFC, SFC, PDM, PLCSIM,
SCL, Graph, SPS-VISU S5/S7, IBHsoftec, LOGO ...
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peterfrick
Posts: 40
Joined: Sat Feb 10, 2007 8:57 am

Level 4 password protected S7-200 CPU 226

Post by peterfrick » Tue Aug 20, 2013 1:01 pm

Dear All please guide me how to break level 4 password of S7-200 PLC CPU226. When I upload it says "The PLC has been Protected to prevent program Upload".
Please help.
Thanks

mohdabshr
Posts: 180
Joined: Sat Jul 23, 2011 2:02 pm

Re: Level 4 password protected S7-200 CPU 226

Post by mohdabshr » Fri Aug 23, 2013 8:44 am


ytangsuan
Posts: 16
Joined: Wed Mar 18, 2009 2:53 pm
Location: Thailand

Re: Level 4 password protected S7-200 CPU 226

Post by ytangsuan » Sat Mar 22, 2014 7:35 pm

From 6ES7298-8FA24-8BH0> Table 4-3, level 4 never allows upload the user program, data & CPU configuration. The theory is valid as I already tried it. If you have a backup of current project, try a "clearPLC" command and download no password project to CPU.

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