[?]: how unprotect S5 protected blocks?

SIMATIC S7-200/300/400, Step7, PCS7, CFC, SFC, PDM, PLCSIM,
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blockke
Posts: 6
Joined: Fri Oct 14, 2005 9:04 am
Location: China

[?]: how unprotect S5 protected blocks?

Post by blockke » Sun Mar 25, 2007 8:24 am

:?:my S5 blocks is protected, who know Crack?

PLC_ITA
Posts: 251
Joined: Sat May 27, 2006 6:46 am
Location: Europe

Post by PLC_ITA » Sun Mar 25, 2007 9:42 am

not exist a crack for s5 block.
I think that you see this on the screen :

SPA M001
BE

In this case you need a plc connected to sprotect. You need also know
a initial hex address memory of block protect.

do you have a esperience with hex s5 language ?

for example the BE is = hex 65 and NOP 0 = HEX 0 .
you need to change the BE with NOP 0

download your protect block into the plc.
search the initial address of your block
search in on line mode the first HEX65 after the start address and
change in HEX00.
exit and upload the block into PG.
Now you have a sprotect block

SPA M001
NOP 0 // ex BE //
M001:rest of the code

ppp
Posts: 258
Joined: Thu Feb 09, 2006 6:52 am
Location: Russia

Post by ppp » Mon Mar 26, 2007 4:52 am

Use program PG2000 (http://www.process-informatik.de/)
She open any blocks...

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