What causes Concept Modbus connection error 'OL9-1501 Timed out waiting for response from controller'. | Schneider Electric Singapore

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What causes Concept Modbus connection error 'OL9-1501 Timed out waiting for response from controller'.

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

Released for:Schneider Electric Singapore

Published on:23/08/2016Last Modified on:11/08/2022

Range:

Concept Software

Range:

Concept Software