National Instruments NI 9853, Operating Instructions Manual

Page 1: ...OPERATING INSTRUCTIONS NI 9853 2 Port High Speed CAN Module...

Page 2: ...s 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 sp...

Page 3: ...tentially explosive environment Not following these guidelines may result in serious injury or death Caution Do not disconnect I O side wires or connectors unless power has been switched off or the ar...

Page 4: ...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...

Page 5: ...the NI 9853 is internally powered and therefore requires no external power supply CAN1 requires an external power supply of 8 to 25 V to operate Supply power to the VSUP pin of CAN1 from the CAN bus N...

Page 6: ...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 6 7 8 9 1 2 3 4 5...

Page 7: ...National Instruments Corp 7 NI 9853 Operating Instructions Table 2 Pin Assignments for CAN1 Connector Pin Signal 1 No Connection NC 2 CAN_L 3 COM 4 NC 5 SHLD 6 COM 7 CAN_H 8 NC 9 VSUP 6 7 8 9 1 2 3 4...

Page 8: ...smission 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 cabl...

Page 9: ...s Corp 9 NI 9853 Operating Instructions Figure 1 CAN Bus Topology and Termination Resistor Locations CAN Node CAN Node CAN Node Rt Rt CAN Node CAN_H CAN_L CAN_H CAN_L CAN_H CAN_L CAN_H CAN_L Bus Cable...

Page 10: ...he 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 anot...

Page 11: ...Both Ports of the NI 9853 to CAN Buses CAN1 CAN Device CAN0 NI 9853 Rt CAN Cable With Optional Shield SHLD CAN_H CAN_L Vsup COM Rt SHLD CAN_H CAN_L Vsup COM CAN Device Rt CAN Cable With Optional Shie...

Page 12: ...cations 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 Tabl...

Page 13: ...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 ra...

Page 14: ...w 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...

Page 15: ...perating Instructions Figure 3 NI 9853 Hardware Overview Rx Tx CAN Transceiver 5 V_ISO 5 V GND COM CAN_H CAN_L 5 V Reg Rx Tx Ext Pwr Supply CAN Controller Rx Tx CAN Controller CAN_H CAN_L CAN Transcei...

Page 16: ...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 s...

Page 17: ...h Speed CAN Characteristics Transceiver Philips TJA1041 Max baud rate 1 Mbps CAN_H CAN_L bus lines voltage 27 to 40 VDC Supply voltage range VSUP CAN0 N A CAN1 8 to 25 VDC MTBF 1 816 913 hours at 25 C...

Page 18: ...tion from chassis Active mode Transmitting 625 mW max Receiving 400 mW max Sleep mode 25 W max Thermal dissipation at 70 C Active mode 1 W max Sleep mode 250 mW max Physical Characteristics If you nee...

Page 19: ...azardous 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 s...

Page 20: ...rement Category I Port to earth ground Withstand 500 Vrms verified by a dielectric withstand test 5 s Continuous 60 VDC Measurement Category I Safety Standards The NI 9853 is designed to meet the requ...

Page 21: ...abel 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 Class I Division 2 Groups A B C D T4 Cla...

Page 22: ...sing for more information about meeting these specifications Operating temperature 40 to 70 C Storage temperature 40 to 85 C Ingress protection IP 40 Operating humidity 10 to 90 RH noncondensing Stora...

Page 23: ...068 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 electical equipment for measurement control and laborator...

Page 24: ...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 li...

Page 25: ...tal information not included in this document Waste Electrical and Electronic Equipment WEEE EU Customers At the end of their life cycle all products must be sent to a WEEE recycling center For more i...

Page 26: ...nited States contact your local branch office Australia 1800 300 800 Austria 43 662 457990 0 Belgium 32 0 2 757 0020 Brazil 55 11 3262 3599 Canada 800 433 3488 China 86 21 5050 9800 Czech Republic 420...

Page 27: ...9853 Operating Instructions South Africa 27 0 11 805 8197 Spain 34 91 640 0085 Sweden 46 0 8 587 895 00 Switzerland 41 56 2005151 Taiwan 886 02 2377 2222 Thailand 662 278 6777 Turkey 90 212 279 3031...

Page 28: ...the Terms of Use section on ni com legal for more information about National Instruments trademarks Other product and company names mentioned herein are trademarks or trade names of their respective c...