National Instruments NI 9852, Operating Instructions Manual

Page 1: ...OPERATING INSTRUCTIONS NI 9852 2 Port Low Speed Fault Tolerant CAN Module...

Page 2: ...software is located at ni com downloads Note The safety guidelines and specifications in this document are specific to the NI 9852 The other components in your system may not meet the same safety rat...

Page 3: ...potentially 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...

Page 4: ...s for Hazardous Locations 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 Z...

Page 5: ...imes referred to as CAN_V to the COM pin 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 i...

Page 6: ...NI 9852 Operating Instructions 6 ni com Table 1 Pin Assignments for CAN0 Connector Pin Signal 1 No Connection NC 2 CAN_L 3 COM0 4 NC 5 SHLD 6 COM0 7 CAN_H 8 NC 9 VSUP0 6 7 8 9 1 2 3 4 5...

Page 7: ...tional Instruments Corp 7 NI 9852 Operating Instructions Table 2 Pin Assignments for CAN1 Connector Pin Signal 1 No Connection NC 2 CAN_L 3 COM1 4 NC 5 SHLD 6 COM1 7 CAN_H 8 NC 9 VSUP1 6 7 8 9 1 2 3 4...

Page 8: ...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 Every device on a low speed fault tolerant CAN network requires...

Page 9: ...o any location on a CAN bus Figure 2 shows one example of the connection of CAN0 of the NI 9852 directly to one CAN node and CAN1 directly to another CAN node CAN0 and CAN1 require an external power s...

Page 10: ...NI 9852 to CAN Buses CAN1 CAN Device CAN0 NI 9852 CAN Cable With Optional Shield SHLD CAN_H CAN_L Vsup1 COM1 SHLD CAN_H CAN_L Vsup1 COM1 CAN Device CAN Cable With Optional Shield SHLD CAN_H CAN_L Vsup...

Page 11: ...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 applicati...

Page 12: ...This configuration allows the Philips Fault Tolerant CAN transceiver to detect and recover from bus faults It is important to determine the overall termination of the existing network or the terminati...

Page 13: ...nected to the bus NI 9852 Hardware Overview The NI 9852 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 9852...

Page 14: ...com Figure 3 NI 9852 Hardware Overview _ _ VSUP0 Ext Pwr Supply 0 COM0 CAN_H CAN_L Ext Pwr Supply 1 VSUP1 COM1 CAN_H CAN_L CAN0 CAN1 CAN Transceiver 5 V Reg CAN Transceiver 5 V Reg Rx Rx Rx Rx Tx Tx...

Page 15: ...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 sl...

Page 16: ...peed Fault Tolerant CAN Characteristics Transceiver Philips TJA1054A Max baud rate 125 Kbps CAN_H CAN_L bus lines voltage 27 to 40 VDC Supply voltage range VSUP0 VSUP1 CAN0 8 to 36 VDC CAN1 8 to 36 VD...

Page 17: ...r MIL HDBK 217F specifications Power Requirements Power consumption from chassis Active mode Transmitting 400 mW max Receiving 400 mW max Sleep mode 25 W max Thermal dissipation at 70 C Active mode 1...

Page 18: ...ive 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 equ...

Page 19: ...t Category I Safety Standards The NI 9852 is designed to meet the requirements of the following standards of safety for electrical equipment for measurement control and laboratory use IEC 61010 1 EN 6...

Page 20: ...EMKO EEx nA II T4 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...

Page 21: ...n Degree IEC 60664 2 Shock and Vibration To meet these specifications you must panel mount the CompactRIO system Operating vibration random IEC 60068 2 64 5 grms 10 to 500 Hz Operating shock IEC 60068...

Page 22: ...326 EMC requirements Minimum Immunity EN 55011 Emissions Group 1 Class A CE C Tick ICES and FCC Part 15 Emissions Class A Note For EMC compliance operate this device according to product documentation...

Page 23: ...mental Management National Instruments is committed to designing and manufacturing products in an environmentally responsible manner NI recognizes that eliminating certain hazardous substances from ou...

Page 24: ...ducts must be sent to a WEEE recycling center For more information about WEEE recycling centers and National Instruments WEEE initiatives visit ni com environment weee htm RoHS National Instruments Ro...

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