PLC Password: How to protect your program?

How to protect you program?

I’m pretty sure, that If you´re a programmer is not the first time you need to protect your work.
Maybe to avoid last time changes, or maybe because is your everyday bread.
So in any of the cases, we would like to explain what password locking possibilities new ISPSoft provide to you.

1st Program Lock
In this case, you lock the computer file, to open the file you need to have the pasword, but If the program in on the PLC customer can upload without password.


full screen is recommended

2nd Subroutine Lock
Your customer can open the program with no problem, but you can lock your Function Blocks to avoid anybody steal your Know-how.


full screen is recommended

3rd PLC Lock
In this case you’re locking the PLC, to be able to upload the program from the PLC you need the password.
The password resets if you come back to factory settings, but be aware that you´re going to lose the program also!


full screen is recommended

To all of you, who have a machine in you hands with a Password, and need to extract the program for whatever reason is. I’m afraid there´s no crack or universal password.
The only think you can do is contact with your machine provider.
Or just reset to factory settings, loosing the program on the process

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7 responses to “PLC Password: How to protect your program?

  1. Can you also explain what possibilities to lock/unlock or reset lock (if someone has forgot his password) DELTA HMI and it’s programs/recepts?

    • Hi Tomas,
      With the HMI is exactly the same
      If you forgot the password you better have a backup copy in your computer, due the only way to unlock the device is erasing the whole memory and downloading the program again.

      • How exactly to do so?
        To set password: DOPsoft/File/Password Protect?
        To clear fogotten password: DOPsoft/Tools/Reset HMI?

  2. Your Post is really good one from another post.I just Feel that.I also start a Automaton Blog.Please read some post & give me some suggestions.My some category of writing :

    Automation Products

    Barcode Automation

    Building Automation

    Factory Automation

    Home Automation

    Industrial Automation

    Lighting Automation

    Manufacturing Automation

    Office Automation

    Plant Automation

    Process Automation

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    You are a good writer also.If possible, write for my Automation Blog.If you write for us,i feel vary happy.

    • Dear Md. Shohidul,

      Thanks for your nice words, we check your blog and it seems quite interesting, we´ll follow it in the future.
      And I we find some nice theme to talk about, be shure we´ll send our words to you.

      Regards,
      Delta Team

  3. How do i unlock my 4-digit password of dop-b series hmi ? Pls help..any solution without loosing my plc program.

  4. Reblogged this on kasamblog and commented:
    Does anyone have a wiring diagram to connect 2 ASD-A2 servo drives in gantry mode?

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