How to Unlock Password of Siemens Simatic S7-200 PLC
If you have a Siemens Simatic S7-200 PLC that is locked with a password and you don't remember it, you may be wondering how to access your project or modify your program. Fortunately, there are some ways to unlock the password of this PLC model, depending on the CPU version and the type of password protection. In this article, we will show you how to unlock the password of Siemens Simatic S7-200 PLC using a software tool and a programmer kit.
What You Need
To unlock the password of Siemens Simatic S7-200 PLC, you will need the following items:
simatics7200plcpasswordcrackzip
A PC with Windows operating system and Step 7 MicroWin software installed.
A PPI cable to connect the PC and the PLC.
A programmer kit that supports 24Cxx EEPROM chips, such as CH341A or TL866.
A software tool that can decrypt the password from the PLC project file or the EEPROM chip data, such as PLC HMI Password Unlock v4.2 from plcunlockbd.com.
How to Unlock Password for CPU Version Below v2.01
If your PLC has a CPU version below v2.01, such as v1.01 or v1.02, you can unlock the password using the PPI cable and the software tool. Here are the steps:
Download PLC HMI Password Unlock v4.2 from plcunlockbd.com and unzip it on your PC.
Open the software tool and select Siemens > S7-200 REL 02.01 from the Select PLC Type menu.
Select the correct communication port from the Port menu and click on DECRYPTION.
The software tool will scan the PLC and display the password in the Password field.
How to Unlock Password for CPU Version v2.01 and v2.02
If your PLC has a CPU version v2.01 or v2.02, you will need to use the programmer kit and the software tool to unlock the password. Here are the steps:
Open the top cover of the PLC and locate the EEPROM chip on the board according to your PLC model. For example, if you have a CPU 226CN, you will need to copy the 24512WP chip.
Use the programmer kit to read and save the data from the EEPROM chip as a BIN file on your PC.
Download PLC HMI Password Unlock v4.2 from plcunlockbd.com and unzip it on your PC.
Open the software tool and select Siemens > S7-200 REL 02.01 from the Select PLC Type menu.
Select your PLC model from the Model menu, such as CPU226CN.
Click on Open Project and select your BIN file, then click on Get Password.
The software tool will decrypt and display the password in the Password field.
Note
If your PLC has a level 4 password protection, you will need to convert it to level 3 before unlocking it using the software tool. To do this, you can use another software tool called S7-200 POU Decryptor from plc4me.com.
We hope this article was helpful for you to unlock the password of Siemens Simatic S7-200 PLC. If you have any questions or need any assistance, please contact us at plcunlockbd@gmail.com or +8801758432841 (WhatsApp/Telegram/Wechat). 0efd9a6b88
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