Rslogix 5000 Firmware 20.12 May 2026

This version is a significant release in the Logix ecosystem, primarily because it represents the last major version before the rebrand to Studio 5000 and the introduction of the new "Logix Designer" application interface.

Technical Content: RSLogix 5000 Firmware 20.12

1. Overview & Significance

  • Codename: "Version 20" (Maintenance Release: 20.12).
  • Era: Transitional phase between RSLogix 5000 (Classic UI) and Studio 5000 (Modern Ribbon UI).
  • Key Note: Firmware 20.12 is the final feature release for the legacy RSLogix 5000 interface. Version 21 and later require the Studio 5000 environment.
  • Lifecycle Status: Active for existing installations, but new projects are typically recommended on v24+ or v32+.

To effectively use the software required to manage v20.012 firmware, the following PC requirements typically apply: Operating System: rslogix 5000 firmware 20.12

noted that controllers running v20.012 might fail to transition to when used with certain PowerFlex 520 or 750 series drives. Upgrade Path: This version is a significant release in the

Option B: Virtualization for Legacy Support

Many companies are choosing to freeze a specific Windows 10 Virtual Machine (VMware or Hyper-V) that contains RSLogix 5000 V20 and support for firmware 20.12. They run their modern engineering tools (Studio 5000 V35) on the host OS and spin up the VM only to service older lines. Codename: "Version 20" (Maintenance Release: 20

B. Security & CIP (Common Industrial Protocol)

  • No CIP Security: Version 20.12 has no native CIP Security (no authentication/encryption for controller connections).
  • Unsafe Mode: Controllers on v20.12 are vulnerable to unauthorized uploads/downloads. You must use a Stratix 5700 firewall or GuardLogix as a network barrier.

RSLogix 5000 version 20.12 is a significant firmware release from Rockwell Automation, primarily known for being one of the final stable revisions of the RSLogix 5000 brand before it transitioned to the Studio 5000 Logix Designer name at version 21. Key Functions and Role

RSLogix 5000 version 20.12 is a critical legacy firmware revision for Allen-Bradley ControlLogix and CompactLogix controllers. As of April 16, 2026, it remains one of the most widely used versions for systems that have not yet migrated to the Studio 5000 Logix Designer environment. Key Technical Details

This is because of changes in the tag database and safety certification structures.

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36 comments

  1. rslogix 5000 firmware 20.12

    The save button is not working and therefore cannot add records to the table after modifying input boxes with select options

  2. rslogix 5000 firmware 20.12

    Hi , This tutorial was very useful to my project . Thanks a Ton.
    Since we have around 30,000 records and around 72 fields it is retrieving all the rows hence it is taking time to load . It would be really helpfull if you would add server side processing on this existing project as mentioned in datatables documention to load page by page.

    Thank you
    Regards,
    Shabarish Shetty

  3. rslogix 5000 firmware 20.12

    i got the warning massage and its not working.
    “DataTables warning: table id=manageMemberTable – Invalid JSON response.”

    need help. tq

  4. rslogix 5000 firmware 20.12

    fikri…
    I have the same problem here…
    Did you fix it?
    I need some help…
    Thanks a lot.

  5. rslogix 5000 firmware 20.12

    i got the warning massage and its not working.
    “DataTables warning: table id=manageMemberTable – Invalid JSON response.”

  6. rslogix 5000 firmware 20.12

    Nice jobs,,, Thanks,,, 🙂

  7. rslogix 5000 firmware 20.12

    Edit not working 🙁

  8. rslogix 5000 firmware 20.12

    I’ve removed the “active” row, but I keep having errors regarding the “retrive.php” file…how should it be done if we don’t want to use the “active” row??

  9. rslogix 5000 firmware 20.12

    This is awesome… but i want to reload this crud table result in every 1 sec… so that any changes in data table will be reflected in every 1 sec to all the users.

  10. rslogix 5000 firmware 20.12

    I cannot display data using mobile browser. Any help?
    Thanks before.

  11. rslogix 5000 firmware 20.12

    Is there anyway u add on child row with this example? I trying to figure out how to do it. Btw thanks for this example it does help me alot

  12. rslogix 5000 firmware 20.12

    awesome, tnx,
    How to create a link in the table that sends the [member_id] to the custom link (<a href ….)?

  13. rslogix 5000 firmware 20.12

    Error while adding the member information

  14. rslogix 5000 firmware 20.12

    “Error while adding the member information”
    plz help me

  15. rslogix 5000 firmware 20.12

    not working your sample download source code.
    from here error
    manageMemberTable = $(“#manageMemberTable”).DataTable({
    “ajax”: “php_action/retrieve.php”,
    “order”: []
    });
    error detect DataTables warning: table id=manageMemberTable – Invalid JSON response. For more information about this error, please see http://datatables.net/tn/
    please send me the source code working. im interest your sample code. please reply to my message.
    thank you.

  16. rslogix 5000 firmware 20.12

    How to make a check of the availability of data before it is stored to the database?

  17. rslogix 5000 firmware 20.12

    oke, i just realize when im downloading ur sql file and the sql that u showing in this web, they are not same,

  18. rslogix 5000 firmware 20.12
    shehab_sayed@hotmail.com October 30, 2017 at 7:16 pm

    dear sir i’m going to develops a responsive real state website so could you please help me in this regard i just need any tutorial , sample or open source template could be helpful

  19. rslogix 5000 firmware 20.12
    shehab_sayed@hotmail.com October 30, 2017 at 7:17 pm

    dear sir do you have any tutorial how to filter data using more than one combo box

  20. rslogix 5000 firmware 20.12

    Hi, i have added more data and i can’t update them.
    I have made changes to index.php, index.js and create.php. What other things should i look out for?
    Thank you.

  21. rslogix 5000 firmware 20.12

    Hi, i have the following question,
    I have added additional data and was able to retrieve and displayed on the dataTable. I am also able to add, edit and delete them.
    But, when i edit any respective row, it doesn’t fetch that row data and show it in the input column. I know the member_id is important, and the fetched the respective row id data. But i just couldn’t figure out what has gone wrong. Can you kindly enlighten me on this? Thank you.

  22. rslogix 5000 firmware 20.12

    Hi, good tuto but the edit function not working because of code issue.
    To fix the issure we must add a class to the editMemberModal so it become :

  23. rslogix 5000 firmware 20.12

    how to use dropdown filter for this method?

  24. rslogix 5000 firmware 20.12

    thank you very much kind sir for this code, it is very helpful in my project.
    i want to add upload-image feature in adding record but i cannot get to work, i have added enctype=”multipart/form-data” and required form
    it seems create.php is not accepting $_FILES variable from add modal.
    can you help me please ?

  25. rslogix 5000 firmware 20.12

    Hi Guys,
    Thanks for the tutorial. Not sure if you are still monitoring this but I could do with some help please.
    I am trying to add a lname (last name), to the app, I have updated the index.php edit modal and the create modal, edited the retrieve.php (this works, as if gets the lname from the database), edited the create.php query and the index.js edit function. Strange reaction to create as I haven’t edited that function in the index.js file.
    However, the edit user isn’t working, by that I mean that when I open the edit modal the lname input isn’t populated with the current users last name and getting error message when clicking the Save Changes button.
    There are others asking for help on Stack Overflow but there are no answers. Have you got any suggestions?
    Thanks

  26. rslogix 5000 firmware 20.12

    “Error while adding the member information” Please help

  27. rslogix 5000 firmware 20.12

    Thank you very much! it is very helpful in my project!!