Posted 19 Sep 2011 Good Day All, Anyone know of class login passwords in PLC 5 program I just got landed 4 second hand machines from the States and the whole program is locked up all I can do is monitor the code, I cant edit or download Appreciate any help Thank you. Share this post Link to post Share on other sites
Posted 19 Sep 2011 I believe the only way to get into a PLC that's been locked is to send it to Rockwell to be reset (which will erase the program on it). You can also try to do a firmware upgrade (and use the same firmware) to wipe it out, but I don't think there is anyway to recover a lost password. Share this post Link to post Share on other sites
Posted 19 Sep 2011 If you don't need the program (you have a non-passworded backup) you can pull the battery and leave it unpowered for a while (several minutes). Then power back up and download the non-passworded program. If you need the program then it must go to AB with forms to prove ownership of the program. You need a tech connect contract for this. Share this post Link to post Share on other sites
Posted 22 Sep 2011 Thanks Guys Tech Support helped out Thanks again for taking the time out to comment Share this post Link to post Share on other sites