Page 2 - Note; The safety guidelines and specifications in this; Safety Guidelines; Hot Surface; This icon denotes that the component may be
NI 9853 Operating Instructions 2 ni.com These operating instructions describe how to use the National Instruments (NI) 9853 module. For information about installing, configuring, and programming your system, refer to your system documentation. The NI 9853 module requires the NI 9853 software to be i...
Page 3 - Safety Guidelines for Hazardous Locations; not; not; Caution
© National Instruments Corp. 3 NI 9853 Operating Instructions Safety Guidelines for Hazardous Locations The NI 9853 is suitable for use in Class I, Division 2, Groups A, B, C, D, T4 hazardous locations; Class I, Zone 2, AEx nA II T4 and Ex nA II T4 hazardous locations; and nonhazardous locations onl...
Page 4 - For Zone 2 applications, install a protection; Special Conditions for Safe Use in Europe; II 3G and is suitable for use in Zone 2 hazardous
NI 9853 Operating Instructions 4 ni.com Caution For Zone 2 applications, install a protection device between the CAN signals and the NI 9853 CAN pins. The device must prevent the CAN Port-to-COM voltage from exceeding 55 V if there is a transient overvoltage condition. Special Conditions for Safe Us...
Page 5 - pin of CAN1; Although CAN0 of the NI 9853 does not require an
© National Instruments Corp. 5 NI 9853 Operating Instructions one or both of the COM pins. Each port also has an optional shield pin, SHLD, that can be connected to a shielded CAN cable. Connecting SHLD may improve signal integrity and EMC performance in a noisy environment. CAN0 of the NI 9853 is i...
Page 6 - Connector
NI 9853 Operating Instructions 6 ni.com Table 1. Pin Assignments for CAN0 Connector Pin Signal 1 No Connection (NC) 2 CAN_L 3 COM 4 NC 5 SHLD 6 COM 7 CAN_H 8 NC 9 NC 6789 12345
Page 8 - CAN Bus Topology and Termination
NI 9853 Operating Instructions 8 ni.com CAN Bus Topology and Termination A CAN bus consists of two or more CAN nodes cabled together. The CAN_H and CAN_L pins of each node are connected to the main CAN bus cable through a short connection known as a “stub.” The pair of signal wires, CAN_H and CAN_L ...
Page 10 - Connecting a CAN Bus to the NI 9853
NI 9853 Operating Instructions 10 ni.com Connecting a CAN Bus to the NI 9853 Each port of the NI 9853 can be connected to any location on a CAN bus. Figure 2 shows one example of the connection of CAN0 of the NI 9853 directly to one CAN node, and CAN1 directly to another CAN node. CAN1 requires an e...
Page 12 - Cabling Requirements for NI 9853; Cable Specifications; Characteristic
NI 9853 Operating Instructions 12 ni.com Cabling Requirements for NI 9853 This section deals with cabling specifications, termination resistors, cable lengths, and the number of CAN nodes that can exist in a system. Cable Specifications Cables should meet the physical medium requirements specified i...
Page 13 - Termination Resistors; The termination resistors (R; Cable Lengths
© National Instruments Corp. 13 NI 9853 Operating Instructions Termination Resistors The termination resistors (R t ) should match the nominal impedance of the CAN cable, and therefore comply with the values in Table 4. Cable Lengths The allowable cable length is affected by the characteristics of t...
Page 14 - Number of CAN Nodes
NI 9853 Operating Instructions 14 ni.com 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 connec...
Page 16 - Specifications
NI 9853 Operating Instructions 16 ni.com Sleep Mode (CompactRIO Only) You can enable sleep mode for the CompactRIO system in software. In sleep mode, the system consumes less power and may dissipate less heat. Typically, when a system is in sleep mode, you cannot communicate with the modules. Refer ...
Page 17 - High-Speed CAN Characteristics; Supply voltage range (V; Contact NI for Bellcore MTBF specifications at
© National Instruments Corp. 17 NI 9853 Operating Instructions Specifications The following specifications are typical for the range – 40 to 70 °Cunless otherwise noted. High-Speed CAN Characteristics Transceiver ........................................ Philips TJA1041 Max baud rate ...................
Page 18 - Power Requirements; Power consumption from chassis; Physical Characteristics; If you need to clean the module, wipe it with a dry towel.
NI 9853 Operating Instructions 18 ni.com Power Requirements Power consumption from chassis Active mode Transmitting ......................... 625 mW maxReceiving ............................. 400 mW max Sleep mode ................................. 25 μ W max Thermal dissipation (at 70 °C) Active mod...
Page 19 - Safety; Maximum Voltage; Connect only voltages that are within these limits.; Do not connect to signals or use for
© National Instruments Corp. 19 NI 9853 Operating Instructions Safety Maximum Voltage 1 Connect only voltages that are within these limits. Port-to-COM ..................................... –27 to +40 VDC max, Measurement Category I Measurement Category I is for measurements performed on circuits no...
Page 20 - Isolation Voltages; dielectric withstand test, 5 s; dielectric withstand test, 5 s; Safety Standards
NI 9853 Operating Instructions 20 ni.com Isolation Voltages Port-to-port Withstand.................................... 500 V rms , verified by a dielectric withstand test, 5 s Continuous ................................. 60 VDC, Measurement Category I Port-to-earth ground Withstand.....................
Page 21 - For UL and other safety certifications, refer to the; Hazardous Locations
© National Instruments Corp. 21 NI 9853 Operating Instructions Note For UL and other safety certifications, refer to the product label, or visit ni.com/certification , search by model number or product line, and click the appropriate link in the Certification column. Hazardous Locations U.S. (UL) .....
Page 22 - Environmental; noncondensing; Shock and Vibration
NI 9853 Operating Instructions 22 ni.com Environmental CompactRIO modules are intended for indoor use only. For outdoor use, mount the CompactRIO system in a suitably rated enclosure. Refer to the installation instructions for the chassis you are using for more information about meeting these specif...
Page 23 - Electromagnetic Compatibility; EN 61326 EMC requirements Minimum Immunity; For EMC compliance, operate this device with
© National Instruments Corp. 23 NI 9853 Operating Instructions Operating shock(IEC 60068-2-27).............................. 30 g, 11 ms half sine, 50 g, 3 ms half sine,18 shocks at 6 orientations Operating vibration,sinusoidal (IEC 60068-2-6) .............. 5 g, 10 to 500 Hz Electromagnetic Compati...
Page 24 - CE Compliance; Refer to the Declaration of Conformity (DoC) for; Environmental Management
NI 9853 Operating Instructions 24 ni.com CE Compliance This product meets the essential requirements of applicable European Directives, as amended for CE marking, as follows: • 2006/95/EC; Low-Voltage Directive (safety) • 2004/108/EC; Electromagnetic Compatibility Directive (EMC) Note Refer to the D...
Page 25 - For additional environmental information, refer to the; Waste Electrical and Electronic Equipment (WEEE); EU Customers; At the end of their life cycle, all products; RoHS; National Instruments; about China RoHS compliance, go to
© National Instruments Corp. 25 NI 9853 Operating Instructions For additional environmental information, refer to the NI and the Environment Web page at ni.com/environment . This page contains the environmental regulations and directives with which NI complies, as well as other environmental informa...
Page 26 - National Instruments Contact Information
NI 9853 Operating Instructions 26 ni.com National Instruments Contact Information National Instruments corporate headquarters is located at 11500 North Mopac Expressway, Austin, Texas, 78759-3504. National Instruments also has offices located around the world to help address your support needs. For ...
