On many models (like the FBs series), there are pins labeled on the board. Power down the PLC. Place a jumper on the CLR pins.

Before attempting any third-party tools, try these legitimate routes: Contact the Machine Builder:

If your PLC screen shows "5%" during a password request, it often indicates a specific security level that cannot be bypassed by standard software tricks.

If you do not need the existing program and just want to reuse the hardware, you can clear the memory. Warning: This permanently deletes the program and all data. CLR Jumper Method: