Somebody has put a password on our Omron PLC, meaning we can't download a new program or online-edit. We tried disconnecting the battery with power off and leaving it for 30 minutes (we have the program backed up) but found the password and program still intact on power resumption.
Also, does a backup of the program save the values of data registers or are they reset to zero on uploading a backed-up copy of the ladder logic?
Thanks for any help.
Also, does a backup of the program save the values of data registers or are they reset to zero on uploading a backed-up copy of the ladder logic?
Thanks for any help.