1. The CAN communication interface is incorrectly connected to the power cord, and the communication module is burned down, resulting in a communication failure.
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2, CAN communication process in the bus generated a prompt high current voltage, the communication module breakdown, equipment communication failure. Generally, devices have integrated isolation protection modules, so this is less common.
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3, the equipment communication interface encountered a strong physical impact, the communication module opened welding, resulting in communication failure.