Number of CAN Nodes
The maximum number of nodes depends on the electrical
characteristics of the nodes on the network. If all nodes meet the
ISO 11898 requirements, you can connect at least 30 nodes to the
bus. You can connect higher numbers of nodes if the nodes’
electrical characteristics do not degrade signal quality below
ISO 11898 signal level specifications.
The NI 9882 electrical characteristics allow at least 110 CAN
ports on a network.
NI 9882 Hardware Overview
The NI 9882 has one full-featured CAN port that is isolated from
the other modules in the system. The port has a Bosch DCAN
CAN controller that is CAN 2.0B-compatible and fully supports
both 11-bit and 29-bit identifiers. The port also has an
NXP PCA82C251T High-Speed CAN transceiver that is fully
compatible with the ISO 11898 standard and supports baud rates
up to 1 Mbps.
NI 9882 Getting Started Guide
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© National Instruments
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