The same with S7-200, the control program for an S7-200 Smart CPU consists of the following types of Program Organizational Unit (POU): Main program, Subroutines, Interrupt routines. On this post, I guide you: How to set and unlock POU password S7-200 Smart use Step7 Micro/WIN Smart Software.
Set a POU Password
On Step7 Micro/WIN Smart use ribbon tab user interface (the same with Microsoft Office), it helps users find and use commands efficiently. You can download Step7 Micro/WIN Smart (V2.0, V2.2, V2.3) at Download page of 365electricalvn. To Set a POU password, please follow the steps:
- Step 1: Open the project with Step7 Micro/WIN Smart program. Click on a File tab > POU > Protection.
- Step 2: Tick on “Password Protect this block” box.
- Step 3: Type the characters to “Password” and “Verify” (These values are the same)
- Step 4: Click “OK”. And then close, save the project to apply the password.
If you tick on: “Password-protect All POUs using this password” box, the password will be effective to all POUs.
Could be helpful for you:
- Step7 MicroWin Smart For S7-200 SMART Series
- Unlock POU Password S7-200 Use Step7 MicroWIN V4.0
- How to Connect PLC and HMI. Make the Communication Cable
How to Unlock POU Password S7-200 Smart
Why do it
- You need to see code, edit the program…
- The program 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 Step7 MicroWIN Smart Version on your computer. This tool only supports the version V2.0 or V2.2.
- Step 2: Download the tool Unlock POU Passwords S7 200 SMART at the end of post.
- Step 3: Open the path: “C:\Program Files\Siemens\STEP 7-MicroWIN SMART”. Rename file “datamanagers.dll” to “datamanagers-backup.dll”
- Step 4: Extract the downloaded file. Coppy file “datamanagers V2.x.dll” to C:\Program Files\Siemens\STEP 7-MicroWIN SMART
- Step 5: Rename the file “datamanagers V2.x.dll” to “datamanagers.dll”
- Step 6: Open the project you need unlock POU password S7-200 Smart. Enjoy it!
- Close the Siemens Step7 MicroWIN Smart program before begin.
- On Windows OS x64 version, the path of “datamanagers.dll” file may be not the same above.
- The unlock project password for S7-200 SMART supported too. Contact us if you need it.
Direct Link Download:
- Tool Unlock POU Passwords S7 200 SMART: V2.0 | V2.2 | V2.3
- Manual and more software, documentation: Download page.