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National Instruments NI-9853 2-port high-speed C Series CAN interface module
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National Instruments · CompactRIO

NI-9853

The NI-9853 is a two-port high-speed CAN interface module for CompactRIO FPGA applications. It provides independent, isolated CAN ports supporting CAN 2.0B communication at rates up to 1 Mbps.

ManufacturerNational Instruments
ModelNI-9853
Product Type2-port high-speed C Series CAN interface module
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Free Shippingfull policy linked
30-Day Warrantystandard coverage
30-Day Returnspolicy applies
Technical Supportmodel & compatibility help
CAN ports2 independent high-speed ports
Maximum CAN rate1 Mbps
PlatformCompactRIO, FPGA programming
ConnectorsTwo 9-pin male D-Sub connectors
CAN1 powerExternal +8 to +25 V supply required
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Overview

Product overview

Key product information and technical features.

The NI-9853 adds high-speed CAN communication to CompactRIO systems through a C Series module interface. It is intended for low-level control, triggering, and byte-level CAN frame manipulation using the LabVIEW FPGA Module and NI-RIO software.

Each CAN port is isolated from the other port and from other modules in the system. CAN0 is internally powered, while CAN1 requires an external supply connected through its VSUP pin. This difference is important when wiring and commissioning a two-port application.

  • Two independent CAN ports with isolation between ports and from other system modules.
  • CAN 2.0B-compatible controllers support both 11-bit and 29-bit identifiers.
  • ISO 11898-compatible high-speed CAN transceivers support communication up to 1 Mbps.
  • LabVIEW FPGA access supports low-level CAN frame manipulation and custom control logic.
Verified specifications

Technical data

Verified product specifications.

Number of CAN ports2 ports
CAN physical layerHigh-speed, ISO 11898-compatible
Maximum CAN bit rate1 Mbps
CAN protocolCAN 2.0B; 11-bit and 29-bit identifiers
CAN connectorsTwo 9-pin male D-Sub connectors
CAN0 powerInternally powered
CAN1 external supply+8 to +25 V
Operating temperature-40 to +70 °C
EnclosedYes
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Compatibility

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National Instruments

Manufacturer

CompactRIO

Supported hardware platform

C Series NI-9853

FPGA-accessed high-speed CAN interface module

Development environment

LabVIEW FPGA Module with NI-RIO support

Do not select this module for CompactDAQ operation. Verify the CompactRIO target and software combination, and provide external power for CAN1.
Manuals & software

Technical resources

Manuals, software and technical resources for this model.

NI-9853 Product PageManufacturer Product Page · ni.com
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NI-9853 Getting StartedGetting-started Guide · ni.com
Open →
NI 9853 and 9852 with CompactRIO FAQTechnical Support Article · knowledge.ni.com
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NI-9853 Pinout, Wiring, Power, and CAN TerminationTechnical resource
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Choosing a CAN Interface for CompactDAQ or CompactRIOTechnical resource
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Shipping, warranty & returns

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Warranty
30-Day Warranty. Standard coverage applies.
Returns
30-Day Returns. Return policy applies.
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FAQ

Product-specific questions

Product-specific answers based on available technical information.

Does the NI-9853 work with CompactDAQ?

No. NI identifies the NI-9853 as a CompactRIO module, not a CompactDAQ interface.

Why does CAN1 need a separate power connection?

CAN1 requires an external +8 to +25 V supply at its VSUP connection on pin 9. CAN0 is internally powered and does not require this external supply.

Can the NI-9853 operate in Scan Mode?

No. NI-985x modules use FPGA mode. An FPGA application can pass CAN data to the real-time controller through a FIFO.

What CAN identifiers and bit rates does the NI-9853 support?

Its CAN 2.0B-compatible controllers support 11-bit and 29-bit identifiers, with high-speed CAN communication up to 1 Mbps.

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