I am new to CANopen protocol. I am connecting sensors via USB to CAN V2 compact. Iam able to receive the data from the sensor and I can see that the Message type as PDO2, PDO3 etc.
But I cant differentiate between PDO2 and PDO 3 .Are they both same? Or is there any difference between the two messges?

Hello @Swathyyy ,

This page might help you understand the PDO formatting PDO services (


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