Connection timed out on read when downloading CM CANopen configuration

29 Apr 2024

This article describes how to solve the error when  downloading the configuration of CM CANopen.

 

APPLICABLE PRODUCTS

CM CANopen (021620-b)

 

QUESTION

When downloading the configuration via USB cable in CM CANopen Configuration Studio tool , a pop-up message says download failed, Connection timed out on Read?

 

 

 

ANSWER

The CM module was not configured in PLC.
The CM module need to be configured in Siemens TIA Portal first, then download the configuration to module in CM CANopen Configuration Studio tool.