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How to configure CANopen slaves to automatically change to operational state?

I have some questions about the CANopen protocol. Question 1 I have a 52 slave nodes on a CANopen network with a CANopen master. If I turn on the power only for CANopen slaves, then all these slaves ...
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CANopen frame format?

Is there a resource that describes how CANopen frames are constructed down to the byte level? I'm trying to decode a hex dump from a CAN bus, see the image below. The high-level CAN messages that ...