NI 9853 Operating Instructions
Contents
1. 27 to 40 VDC Supply voltage range Vsup CAN O N A CANT sisi 8 to 25 VDC 1 816 913 hours at 25 C Bellcore Issue 6 Method 1 Case 3 Limited Part Stress Method Note Contact NI for Bellcore MTBF specifications at other temperatures or for MIL HDBK 217F specifications National Instruments Corp 17 NI 9853 Operating Instructions Power Requirements Power consumption from chassis Active mode Transmitting 625 mW max Receiving Sleep Thermal dissipation at 70 Active mode sss 1 W max Sleep mode 250 mW max Physical Characteristics If you need to clean the module wipe it with a dry towel M eighti An Approx 144 g 5 0 oz NI 9853 Operating Instructions 18 ni com Safety Maximum Voltage Connect only voltages that are within these limits Port to COM esses 27 to 40 VDC max Measurement Category I Measurement Category I is for measurements performed on circuits not directly connected to the electrical distribution system referred to as MAINS voltage MAINS is a hazardous live electrical supply system that powers equipment This category is for measurements of voltages from specially protected secondary circuits Such voltage measurements include signal levels special equi2. Characteristic Value Condition Termination resistor 100 Q min Minimum power 120 nominal dissipation 220 mW 130 Q max Cable Lengths The allowable cable length is affected by the characteristics of the cabling and the desired bit transmission rates Detailed cable length recommendations can be found in the ISO 11898 CiA DS 102 and DeviceNet specifications ISO 11898 specifies 40 m total cable length with a maximum stub length of 0 3 m for a bit rate of 1 Mb s The ISO 11898 specification says that significantly longer cable lengths may be allowed at lower bit rates but each node should be analyzed for signal integrity problems National Instruments Corp 13 NI 9853 Operating Instructions 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 fu
3. Equipment WEEE EU Customers At the end of the product life cycle all products must be sent to a WEEE recycling center For more information about WEEE recycling centers National Instruments WEEE initiatives and compliance with WEEE Directive 2002 96 EC on Waste Electrical and Electronic Equipment visit com environment weee htm EFAA XE SEE ROHS HEZA National Instruments Ferr Bat fei oo rp pop RoHS AF National Instruments F E RoHS ni com environment rohs_china For information about China RoHS compliance go to ni com environment rohs china National Instruments Corp 25 NI 9853 Operating Instructions 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 telephone support in the United States create your service request at ni com support and follow the calling instructions or dial 512 795 8248 For telephone support outside the United States visit the Worldwide Offices section of ni com niglobal to access the branch office Web sites which provide up to date contact information support phone numbers email addresses and current events NI 9853 Operating Instructions 26 ni com LabVIEW National Instruments NI ni com t
4. OPERATING INSTRUCTIONS NI 9853 2 Port High Speed CAN Module Y NATIONAL INSTRUMENTS 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 installed The latest version of the NI 9853 software is located at ni com downloads Note The safety guidelines and specifications in this document are specific to the NI 9853 The other components in your system may not meet the same safety ratings and specifications Refer to the documentation for each component in your system to determine the safety ratings and specifications for the entire system Safety Guidelines Operate the NI 9853 only as described in these operating instructions Hot Surface This icon denotes that the component may be hot Touching this component may result in bodily injury NI 9853 Operating Instructions 2 ni com 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 only Follow these guidelines if you are installing the NI 9853 in a potentially explosive environment Not following these guidelines may result in serious injury or death Caution Do not disconn
5. TA Canada 0 1 Class I Division 2 Groups A B C D T4 Class I Zone 2 Ex nA II T4 Europe EEx nA II T4 National Instruments Corp 21 NI 9853 Operating Instructions Environmental Refer to the installation instructions for the chassis you are using for more information about meeting these specifications Operating temperature 40 to 70 C Storage temperature 40 to 85 C Ingress IP 40 Operating humidity 10 to 90 RH noncondensing Storage humidity 5 to 95 RH noncondensing Pollution Degree IEC 60664 2 Maximum altitude 5 000 m Indoor use only Shock and Vibration To meet these specifications you must panel mount the CompactRIO system Operating vibration random IEC 60068 2 64 5 gs 10 to 500 Hz NI 9853 Operating Instructions 22 ni com Operating shock 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 Compatibility This product is designed to meet the requirements of the following standards of EMC for electrical equipment for measurement control and labora
6. ect I O side wires or connectors unless power has been switched off or the area is known to be nonhazardous Caution Do not remove modules unless power has been switched off or the area is known to be nonhazardous Caution Substitution of components may impair suitability for Class I Division 2 Caution For Zone 2 applications install the CompactRIO system in an enclosure rated to at least IP 54 as defined by IEC 60529 and EN 60529 National Instruments Corp 3 NI 9853 Operating Instructions Caution For Zone 2 applications install a protection UN 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 Use in Europe This equipment has been evaluated as EEx nA II T4 equipment under DEMKO Certificate No 03 ATEX 0324020X Each module is marked II 3G and is suitable for use in Zone 2 hazardous locations Wiring the NI 9853 The NI 9853 has two 9 pin male D Sub connectors that provide connections to a CAN bus Each port on the NI 9853 has pins for CAN_H and CAN_L to which you connect the CAN bus signals These signals should be connected using twisted pair cable Each port has two common pins COM that are internally connected to the isolated reference of the module and serve as the reference ground for CAN_H and CAN_L You can connect the CAN bus reference grou
7. he National Instruments corporate logo and the Eagle logo are trademarks of National Instruments Corporation Refer to the Trademark Information at ni com trademarks for other National Instruments trademarks Other product and company names mentioned herein are trademarks or trade names of their respective companies For patents covering National Instruments products technology refer to the appropriate location Help Patents in your software the patents txt file on your media or the National Instruments Patent Notice at ni com patents 2006 2011 National Instruments Corp All rights reserved 371453E 01 Jani
8. lly 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 NI 9853 Operating Instructions 14 ni com CAN CAN L Transceiver e Controller S Ext Pwr Supply CAN Controller Figure 3 9853 Hardware Overview National Instruments Corp 15 NI 9853 Operating Instructions 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 to the Specifications section for more information about power consumption and thermal dissipation This system sleep mode should not be confused with the NI 9853 Transceiver Mode Sleep property which sets only the CAN port to sleep mode Refer to the FPGA Module topic in LabVIEW Help for more information on the Transceiver Mode property NI 9853 Operating Instructions 16 ni com Specifications The following specifications are typical for the range 40 to 70 C unless otherwise noted High Speed CAN Characteristics FranscelVet eee iere toa Philips TJA1041 baud rate 1 Mbps CAN H CAN L bus lines voltage
9. nd sometimes referred to as CAN_V to NI 9853 Operating Instructions 4 ni com 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 of the NI 9853 is internally powered and therefore requires no external power supply CANI requires an external power supply of 8 to 25 V to operate Supply power to the Vsup pin of CANI from the CAN bus Note Although CANO of the NI 9853 does not require an external power supply to operate it can be connected to a powered CAN bus without being damaged Pinouts for CANO and CANI of the NI 9853 are listed in Table 1 and Table 2 Table 4 lists recommended termination resistor values National Instruments Corp 5 NI 9853 Operating Instructions Table 1 Pin Assignments for CANO Connector Pin Signal 1 No Connection NC 2 CAN_L 3 COM 6 fo l 4 NC E 5 SHLD 9 po B 6 COM 7 CAN H 8 NC 9 NC NI 9853 Operating Instructions 6 ni com Table 2 Pin Assignments for 1 Connector Pin Signal 1 No Connection NC 2 CAN_L 3 COM amp llo E ji 4 NC alle o 3 5 SHLD 9 ollis 6 COM 7 _ 8 9 National Instruments Corp 7 NI 9853 Operating Instructions CAN Bus Topology and Te
10. pment limited energy parts of equipment circuits powered by regulated low voltage sources and electronics Caution Do not connect to signals or use for measurements within Measurement Categories II III or IV 1 The maximum voltage that can be applied or output between any port or Vsup terminal and a COM terminal without creating a safety hazard National Instruments Corp 19 NI 9853 Operating Instructions Isolation Voltages Port to port Continuous e 60 VDC Measurement Category I up to 5 000 m altitude Withstand sess 500 Vms Verified by a 5 s dielectric withstand test Port to earth ground Continuous e 60 VDC Measurement Category I up to 5 000 m altitude Withstand esses 500 Verified by a 5 s dielectric withstand test Safety Standards The NI 9853 is designed to meet the requirements of the following standards of safety for electrical equipment for measurement control and laboratory use e IEC 61010 1 EN 61010 1 e UL 61010 1 CSA 61010 1 NI 9853 Operating Instructions 20 ni com Note For UL and other safety certifications refer to the 3 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 US UD tte Class I Division 2 Groups A B C D T4 Class Zone 2 AEx nA II
11. rmination 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 constitutes a transmission line If the transmission line is not terminated each signal change on the bus causes reflections that may cause communication errors Because the CAN bus is bidirectional both ends of the cable must be terminated However this requirement does not mean that every node on the bus should have a termination resistor only the nodes at the end of the cable should have termination resistors Figure 1 shows a simplified diagram of a CAN bus with multiple CAN nodes and proper termination resistor R locations NI 9853 Operating Instructions 8 ni com Bus Cable Length p CAN_H CAN_H Node Zn n Node CAN L 1 CAN_L Stub 4 Tj 2 TQ Length zz zz X x lt lt Y CAN CAN Node Node Figure 1 CAN Bus Topology and Termination Resistor Locations National Instruments Corp 9 NI 9853 Operating Instructions Connecting 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 CANO of the NI 9853 directly to one CAN node and 1 directly to another CAN node 1 requires an ex
12. ternal power supply on the CAN bus NI 9853 Operating Instructions 10 ni com SHLD SHLD 8 CANO Optional 3 Shield COM COM i ee NI 9853 SHLD SHLD 1 gt 1 a With CANT i 2 Optional Shield Mai Ll COM Power 7 o BHANA 3 Supply Figure 2 Connecting Both Ports of the NI 9853 to CAN Buses O National Instruments Corp 11 NI 9853 Operating Instructions 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 in ISO 11898 shown in Table 3 Belden cable 3084A meets all of those requirements and should be suitable for most applications Table 3 150 11898 Specifications for Characteristics of a CAN_H and CAN_L Pair of Wires Characteristic Value Impedance 95 minimum 120 nominal 140 Q maximum Length related 70 mQ m nominal resistance Specific line delay 5 ns m nominal NI 9853 Operating Instructions 12 ni com Termination Resistors The termination resistors R should match the nominal impedance of the CAN cable and therefore comply with the values in Table 4 Table 4 Termination Resistor Specification
13. tory use EN 61326 EMC requirements Minimum Immunity EN 55011 Emissions Group 1 Class A e CE C Tick ICES and FCC Part 15 Emissions Class Note For EMC compliance operate this device with shielded cabling National Instruments Corp 23 NI 9853 Operating Instructions CE Compliance C This product meets the essential requirements of applicable European Directives as amended for CE marking as follows e 2006 95 EC Low Voltage Directive safety e 2004 108 EC Electromagnetic Compatibility Directive EMC Note Refer to the Declaration of Conformity DoC for this product for any additional regulatory compliance information To obtain the DoC for this product visit ni com certification search by model number or product line and click the appropriate link in the Certification column Environmental Management National Instruments is committed to designing and manufacturing products in an environmentally responsible manner NI recognizes that eliminating certain hazardous substances from our products is beneficial to the environment and to NI customers NI 9853 Operating Instructions 24 ni com For additional environmental information refer to the NI and the Environment Web page at com environment This page contains the environmental regulations and directives with which NI complies as well as other environmental information not included in this document Waste Electrical and Electronic
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