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
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Released for: Schneider Electric UK
