[?]: how to protect a FB in step7

joopiter · Post by **joopiter** » Tue Jan 22, 2008 7:17 am

hello friends
I want to protect a FB by password in step7 but I Could not find the way,can any one help me?

Post by **Schtiel** » Tue Jan 22, 2008 7:30 am

You can protect your blocks from unauthorized users by setting block protection using the keyword KNOW_HOW_PROTECT when you program the block in the STL source file.

The keyword KNOW_HOW_PROTECT is entered before any other block properties.

(c) from Step7 help files

komatic · Post by **komatic** » Tue Jan 22, 2008 7:38 am

it's imposible

S7CanOpener Unprotect protected FB, FC http://plc.net.ru/viewtopic.php?p=168#168

joopiter · Post by **joopiter** » Tue Jan 22, 2008 9:07 am

Dear komatic,I got the file but how should I use it?

Umencho · Post by **Umencho** » Tue Jan 22, 2008 9:26 am

joopiter wrote:Dear komatic,I got the file but how should I use it?

Hi

See here: http://www.runmode.com/s7canopener_file ... opener.pdf

regards

joopiter · Post by **joopiter** » Tue Jan 22, 2008 9:41 am

dear schtiel and komatic really thanks,every think is ok
dear umencho thanks,I have done it succesfully