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The number of nodes can be
extended
Communication Distance
→ Wiring Reference
Connect the CANL and CANH of the standard CAN module to the CANL and CANH of
the other side correspondingly. And public ends of the CAN bus communication both
parties are connected together. In CAN bus left and right sides, connect a 120Ω resistor
respectively (please see below graphic).
→ Wiring Notes:
⚫
As above, the daisy chain topology is used for wiring (the star topology structure
cannot be used). When the use environment is ideal and there are less nodes, the
branch structure also can be used.
⚫
Please connect a 120Ω terminal resistor in parallel to each end of the CAN bus for
matching the circuit impedance and ensuring communication stability.
⚫
Please be sure to connect the public ends of each node on the CAN bus to prevent
the CAN chip from burning out.
Please use STP (Shielded Twisted Pair), especially in bad environments, and make
⚫
Longer communication distance, lower
communication rate, max 100m is recommended.
Up to 16
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