What are CAN Messages? List types?

It is a message-based protocol, originally designed for multiplex electrical wiring within automobiles to save on copper.

The CAN Messages types are listed below:

• Data frame - Data frame is a frame containing node data for transmission.
• The error frame - Error frame is a frame transmitted by any node detecting an error.
• The remote frame - A remote frame is a frame requesting the transmission of a specific identifier.
• The overload frame - An overload frame is a frame to inject a delay between data or remote frames.