Using a precomputed lookup table for the specific CPU’s date code (e.g., FB-20MA date code 2145), the tool maps the hash back to the plaintext 8-character password.
Connect your PC to the Fatek PLC’s Port 0 (default programming port). Settings: 9600 baud, 8 data bits, 1 stop bit, Even parity. fatek plc password unlock software better
Standard WinProladder would ask for a password. The unlock software uses a custom driver to force the PLC into Monitor Mode without authentication by sending a 0x40 service request (normally reserved for remote I/O). Using a precomputed lookup table for the specific
Attempt 1: Factory tech used a free brute-forcer from a forum. After 1,200 attempts, the PLC stopped communicating entirely (uploaded garbage to Sregs). Standard WinProladder would ask for a password
One corrupted CRC on a Fatek B1-14MT costs $450 to replace plus 6 hours of rewiring. The “free” tool just cost you $2,000 in downtime. Part 6: Real-World Case Study – Better Software Saves a Factory Situation: A food packaging plant in Ohio had a Fatek FBs-60MA controlling a flow wrapper. The original integrator went bankrupt. No password. The machine was down for 8 hours.
Introduction: The Industrial Nightmare of a Locked PLC
Attempt 2: Called industrial recovery service. Used . Connected via COM port. Ran the software. In 11 seconds , the software returned the password: F@tek987 . The tech entered it into WinProladder. The program opened. They uploaded, edited the faulty timer, and reset the machine.