How can we help you today?

Control Expert (formerly Unity Pro) is generating a "Task Overrun" error which sets %S19 . What is the most likely cause of this error?

Issue:

Control Expert (formerly Unity Pro) is generating a "Task Overrun" error which sets %S19 . What is the most likely cause of this error?

Product Line:

Control Expert (formerly Unity Pro)

Resolution:

The Task Overrun error (%S19) is set to 1 when the time it takes to complete a Task exceeds the specified time.
The MAST & FAST Task's use the WDT setting to determine when %S19 will set. The user must reset this bit to 0.

Note : If this happens repeatedly, the program may be need to be reviewed. For instance, the program may have for loop in a ST section that does not exit the loop properly and that could cause a watchdog over run. If it is not the program then the Hardware needs to be set for a TEX.

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 Thailand

Explore more
Range:
Users group

Discuss this topic with experts

Visit our community and get advice from experts and peers on this topic and more
Explore more
Range:
  • Products Documentation
  • Software Downloads
  • Product Selector
  • Product Substitution and Replacement
  • Help and Contact Center
  • Find our Offices
  • Get a Quote
  • Where to buy
  • Schneider Electric Community
  • Careers
  • Company Profile
  • Report a misconduct
  • Accessibility
  • Investors
  • EcoStruxure
  • Job Search
  • Blog
  • Privacy Policy
  • Cookie Notice
  • Terms of use
  • Change your cookie settings