You are currently viewing the content available in Vietnam. If you are looking for information for another region, please select the correct country from the top-left dropdown in the page and 'Navigate to Browse FAQs' in the Support menu.
What causes Concept Modbus connection error 'OL9-1501 Timed out waiting for response from controller'.
Issue:
What causes Concept Modbus connection error 'OL9-1501 Timed out waiting for response from controller'.
Product Line:
Concept
Resolution:
Troubleshooting:
- If configured for MB RTU mode, switch to ASCII mode. Put switch in ASCII position and connect to MB1 with ASCII 7, 1, even.
- If using USB converter, turn off wireless card , if present.
- Disable AB drivers
- Confirm pinout of Modbus cable.
MB parameters correct? 9600, 8, 1, even
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:
Released for: Schneider Electric Vietnam
