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Posts tagged as “CAN bus off”

The Two-Node CAN Bus Problem: Error Handling, Bus Off, and Silent Mode

A JCOM1939 Engineering Note on Error Handling, Bus Off, and Silent Mode in Two-Node CAN Networks JCOM1939.com | Copperhill Technologies | © 2026 Controller Area Network (CAN) is well known for its robustness. Arbitration prevents message collisions from corrupting data, error detection identifies damaged frames, automatic retransmission provides another opportunity…

Why Monitoring CAN Error Counters Is Essential for Reliable CAN Bus Diagnostics

When engineers troubleshoot a CAN network, they usually focus on the messages flowing across the bus. They check identifiers, decode data bytes, and verify timing. While that is certainly important, there is another source of diagnostic information that is often overlooked—and in many cases, it provides the fastest path to…

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