Unlock POU Password S7-200 Use Step7 MicroWIN V4.0

 The control program for an S7-200 CPU consists of the following types of Program Organizational Unit (POU): Main program, Subroutines, Interrupt routines. In this post, I guide you: How to set and unlock POU password S7-200 use Step7 MicroWin V4.0 Software.

Setup a POU Password

• Step 1: Use Step7 MicroWIN V4.0 program open the project. Right click on a POU > Properties… > Protection tab
• Step 2: Tick on “Password Protect this POU” box
• Step 3: Type the characters to “Password” and “Verify” (These values are the same)
• Step 4: Click “OK”. Close and save the project to apply the password.

Note:
When you right-click on “MAIN” POU, you will see an option: “Password protect All POUs using this password”. If you tick on this box, your password applicate to all POUs, the POUs already a password will be using the old password.

 

How to Unlock POU Password S7-200

Why do it

• To see code, edit the program…
• Some programs writes by you: Maybe forgot the password…
• The program writes by other people: You can not contact the programmer.
• We do not encourage it, if you can contact the programmer.

Step by step

• Step 1: Check Step 7 MicroWIN V4.0 Version on your computer. This tool only supports the version V4.0 Service pack 8 (SP8) or Service pack 9 (SP9)
• Step 2:  Download the tool at the end of post.
• Step 3: Open the path: “C:\Program Files\Siemens\STEP 7-MicroWIN V4.0\bin”. Rename file “datamanagers200.dll” to “datamanagers200-backup.dll”
• Step 4: Extract the downloaded file. Coppy file “datamanagers200.dll” to C:\Program Files\Siemens\STEP 7-MicroWIN V4.0\bin
• Step 5: Open the project you need unlock POU password S7-200. Enjoy it!

Note:

• Close the Step7 MicroWIN program before begin.
• With the tool you unlock only, but you do not know the password of POUs. To show the password for S7-200 Project

Direct link download:
Tool Unlock S7-200 POU Passwords V4.0:

 

 

 

 

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