NI 9853 Operating Instructions
14
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Number of CAN Nodes
The maximum number of nodes depends on the electrical
characteristics of the nodes on the network. If all of the nodes meet
the requirements of ISO 11898, at least 30 nodes may be connected
to the bus. Higher numbers of nodes may be connected if the
electrical characteristics of the nodes do not degrade signal quality
below ISO 11898 signal level specifications.
The electrical characteristics of the NI 9853 allow at least
110 CAN ports on a network.
NI 9853 Hardware Overview
The NI 9853 has two full-featured, independent CAN ports that are
isolated from each other, and from the other modules in the system.
Each port of the NI 9853 has a Philips SJA1000 CAN controller
that is CAN 2.0B-compatible and fully supports both 11-bit
and 29-bit identifiers. Each port also has a Philips TJA1041
High-Speed CAN transceiver that is fully compatible with the
ISO 11898 standard and supports baud rates up to 1 Mbps.
