How to solve s5 FB protect problem


Thread Starter


I need a help for the siemens s5 fb(not standard funtion) to unprotect. And then, I had found other way on the internet, but it could not to solve my problem.

Leave a blank line in the FB and create a jump instruction that jumps unconditionally over the blank line. Go to output of memory addresses and locate the address with the blank line, edit the code there to read as a program jump to an area outside of the FB block, i.e. past the block end at the bottom of the program. Transfer the block back to your backup disk from the PLC. The PG cannot show the location of the jump label so it bombs out and the code cannot be displayed.

so, have anyone can help me the problem?
thank you so much~