Our Brands

Impact-Company-Logo-English Black-01-177x54

Welcome to the Schneider Electric Website

Welcome to our website.
		
How can we help you today?
What does 'Required "Programming" connection mode is not available' indicate with Unity Pro?.
Issue
When trying to connect to the CPU along with the above message it states: Do you wish to use "Monitoring" connection mode instead? (PLC is already reserved by entity : xxxxx.)

Product line
Unity Pro, Control Expert

Resolution
This means that either a second programming window is open on this PC and it is already connected to the PLC or someone else is already connected to the PLC remotely.


If this FAQ did not solve your issue, you can chat with us at chat with us or e-mail us at customer.services@se.com to create a case with our Technical Support Team.

If you are not located in North America, please contact your local Customer Care Center for assistance:
Support | Schneider Electric Global (se.com)

Schneider Electric Saudi Arabia

Explore more
Range:
Users group

Discuss this topic with experts

Visit our Community for first-hand insights from experts and peers on this topic and more.
Explore more
Range:

Need help?

  • Product Selector

    Quickly and easily find the right products and accessories for your applications.

  • Get a Quote

    Start your sales enquiry online and an expert will connect with you.

  • Where to buy?

    Easily find the nearest Schneider Electric distributor in your location.

  • Help Centre

    Find support resources for all your needs, in one place.

  • Product Documentation
  • Software Downloads
  • Product Selector
  • Product Substitution and Replacement
  • Help and Contact Centre
  • Find our Offices
  • Get a Quote
  • Where to buy
  • Careers
  • Company Profile
  • Report a misconduct
  • Accessibility
  • Newsroom
  • Investors
  • EcoStruxure
  • Job Search
  • Blog
  • Privacy Policy
  • Cookie Notice
  • Terms of use
  • Change your cookie settings