NI-9862 Getting Started Guide and Specifications ...

1 Getting Started GUIDENI 98621-Port, High-Speed CAN ModuleFran aisDeutsch document explains how to connect to the NationalInstruments NI 9862 module requires the latest NI-XNET software to beinstalled. The latest version of the NI-XNET software is at Before you begin, complete the software andhardware installation procedures in your The guidelines in this document are specific tothe NI 9862. The other components in the system mightnot meet the same safety ratings. Refer to thedocumentation for each component in the system todetermine the safety and EMC ratings for the GuidelinesOperate the NI 9862 only as described in this | | NI 9862 Getting Started GuideHot Surface This icon denotes that the componentmay be hot. Touching this component may result inbodily Do not operate the NI 9862 in a manner notspecified in this document. Product misuse can result ina hazard. You can compromise the safety protectionbuilt into the product if the product is damaged in anyway.

2 If the product is damaged, return it to NationalInstruments for Guidelines for Hazardous LocationsThe NI 9862 is suitable for use in Class I, Division 2, Groups A,B, C, D, T4 hazardous locations; Class I, Zone 2, AEx nA IIC T4and Ex nA IIC T4 hazardous locations; and nonhazardouslocations only. Follow these guidelines if you are installing theNI 9862 in a potentially explosive environment. Not followingthese guidelines may result in serious injury or Do not disconnect I/O-side wires orconnectors unless power has been switched off or thearea is known to be 9862 getting started guide | National Instruments | 3 Caution Do not remove modules unless power hasbeen switched off or the area is known to Substitution of components may impairsuitability for Class I, Division For Division 2 and Zone 2 applications,install the system in an enclosure rated to at least IP54as defined by IEC/EN For Zone 2 applications, install a protectiondevice between the CAN signals and the NI 9862 CANpins.

3 The device must prevent the CAN Port-to-COMvoltage from exceeding 55 V if there is a transientovervoltage Conditions for Hazardous Locations Use inEurope and InternationallyThe NI 9862 has been evaluated as Ex nA IIC T4 Gc equipmentunder DEMKO Certificate No. 07 ATEX 0626664X and isIECEx certified. Each NI 9862 is marked II 3G andis suitable for use in Zone 2 hazardous locations, in ambienttemperatures of -40 C Ta 70 C. If you are using the NI 98624 | | NI 9862 Getting Started Guidein Gas Group IIC hazardous locations, you must use the device inan NI chassis that has been evaluated as Ex nC IIC T4, Ex IICT4, Ex nA IIC T4, or Ex nL IIC T4 You must make sure that transientdisturbances do not exceed 140% of the rated The system shall only be used in an area ofnot more than Pollution Degree 2, as defined inIEC The system shall be mounted in anATEX/IECEx-certified enclosure with a minimumingress protection rating of at least IP54 as defined inIEC/EN The enclosure must have a door or coveraccessible only by the use of a the NI 9862 The NI 9862 has one 9-pin male D-Sub connector that providesconnections to a CAN bus.

4 The NI 9862 has pins for CAN_H andNI 9862 getting started guide | National Instruments | 5 CAN_L, to which you connect the CAN bus signals. Connectthese signals using twisted-pair port has two common pins (COM) that are internallyconnected to the module s isolated reference and serve as thereference ground for CAN_H and CAN_L. You can connect theCAN bus reference ground (sometimes referred to as CAN_V-) toone or both COM pins. The port also has an optional shield pin,SHLD, that you can connect to a shielded CAN SHLD may improve signal integrity and EMCperformance in a noisy You must use a UL listed ITE power supplymarked LPS with the NI NI 9862 requires an external power supply of +9 to +30 V tooperate. Supply power to the NI 9862 VSUP Power on VSUP is required for CAN NI 9862 pinout is listed in Table NI 9862 features software-selectable bus termination forHigh-Speed CAN transceivers. On the NI 9862, you can enable6 | | NI 9862 Getting Started Guide120 termination resistors between CAN_H and CAN_Lthrough an API call.

5 Table 3 lists recommended terminationresistor 1. Pin Assignments for the NI 9862 ConnectorPinSignal 6789123451No Connection (NC)2 CAN_L3 COM4NC5 SHLD6 COM7 CAN_H8NC9 VSUPNI 9862 getting started guide | National Instruments | 7 CAN Bus Topology and TerminationA CAN bus consists of two or more CAN nodes cabled CAN_H and CAN_L pins of each node are connected to themain CAN bus cable through a short connection known as a stub. The pair of signal wires, CAN_H and CAN_L, constitutesa transmission line. If the transmission line is not terminated,each signal change on the bus causes reflections that may causecommunication errors. Because the CAN bus is bidirectional,both ends of the cable must be terminated. However, thisrequirement does not mean that every node on the bus shouldhave a termination resistor; only the two nodes at the far end ofthe cable should have termination 1 shows a simplified diagram of a CAN bus with multipleCAN nodes and proper termination resistor (Rt) | | NI 9862 Getting Started GuideFigure 1.

6 CAN Bus Topology and Termination Resistor LocationsCANNodeCANNodeCANNodeRtRtCANNod eCAN_HCAN_LCAN_HCAN_LCAN_HCAN_LCAN_HCAN_ LBus Cable LengthStubLengthConnecting a CAN Bus to the NI 9862 You can connect the NI 9862 port to any location on a CAN 2 shows one example of connecting the NI 9862 directlyto one CAN 9862 getting started guide | National Instruments | 9 Figure 2. Connecting the NI 9862 to a CAN DeviceC SeriesModuleCAN DeviceRtCANC able(With OptionalShield)(SHLD)CAN_HCAN_LVsupCOMRt (SHLD)CAN_HCAN_LVsupCOM10 | | NI 9862 Getting Started GuideCabling Requirements for the NI 9862 Cable SpecificationsCables should meet the physical medium requirements specifiedin ISO 11898, shown in Table 2. Belden cable (3084A) meets allthese requirements and should be suitable for most 2. ISO 11898 Specifications for Characteristics of a CAN_H andCAN_L Pair of WiresCharacteristicValue Impedance95 min,120 nominal,140 maxLength-related resistance70 m /m nominalSpecific line delay5 ns/m nominalNI 9862 getting started guide | National Instruments | 11 Termination ResistorsThe termination resistors (Rt) should match the nominalimpedance of the CAN cable and therefore comply with thevalues in Table 3.

7 The onboard, software-selectable terminationhas a nominal value of 120 . If you are not using the onboardtermination, use the values listed in Table 3. Termination Resistor SpecificationCharacteristicValueConditio n Termination resistor, Rt100 min,Minimum power dissipation:220 mW120 nominal,130 maxCable LengthsThe cabling characteristics and desired bit transmission ratesaffect the allowable cable length. You can find detailed cable12 | | NI 9862 Getting Started Guidelength recommendations in the ISO 11898, CiA DS 102, andDeviceNet 11898 specifies 40 m total cable length with a maximumstub length of m for a bit rate of 1 Mb/s. The ISO 11898specification says that significantly longer cable lengths may beallowed at lower bit rates, but you should analyze each node forsignal integrity of CAN NodesThe maximum number of nodes depends on the electricalcharacteristics of the nodes on the network. If all nodes meet theISO 11898 requirements, you can connect at least 30 nodes to thebus.

8 You can connect higher numbers of nodes if the nodes electrical characteristics do not degrade signal quality below ISO11898 signal level NI 9862 electrical characteristics allow at least 110 CANports on a 9862 getting started guide | National Instruments | 13NI 9862 Hardware OverviewThe NI 9862 has one full-featured CAN port that is isolated fromthe other modules in the system. The port has a Bosch DCANCAN controller that is CAN and fully supportsboth 11-bit and 29-bit identifiers. The port also has an NXPTJA1041AT High-Speed CAN transceiver that is fullycompatible with the ISO 11898 standard and supports baud ratesup to 1 3. NI 9862 Hardware OverviewExt PwrSupplyRequiredRxTxCANC ontrollerCAN_HCAN_LCANT ransceiverRxTxCOMVsup+_14 | | NI 9862 Getting Started GuideNI 9862 SpecificationsThe following Specifications are typical for the range -40 C to70 C unless otherwise CAN baud rate1 , CAN_L buslines voltage-27 to +40 Supply voltagerange (VSUP)+9 to +30 NI for BellcoreMTBF or 9862 getting started guide | National Instruments | 15 Power consumption fromchassis1 W max (active mode).

9 Thermal dissipation(at 70 C) W max (active mode)Physical CharacteristicsTo clean the module, wipe it with a dry 144 g ( oz)SafetyConnect only voltages that are within the following limits:Maximum to +40 VDC max,Measurement Category I1 The maximum voltage that can be applied or output between any port or VSUP terminal and a COM terminal without creating a safety | | NI 9862 Getting Started GuideIsolationPort-to-earth VDC,Measurement Category ,000 Vrms, verified by a 5 sdielectric withstand testMeasurement Category I is for measurements performed oncircuits not directly connected to the electrical distribution systemreferred to as MAINS voltage. MAINS is a hazardous liveelectrical supply system that powers equipment. This category isfor measurements of voltages from specially protected secondarycircuits. Such voltage measurements include signal levels, specialequipment, limited-energy parts of equipment, circuits poweredby regulated low-voltage sources, and Do not connect the NI 9862 to signals or use formeasurements within Measurement Categories II, III,or 9862 getting started guide | National Instruments | 17 Hazardous (UL)Class I, Division 2, GroupsA, B, C, D, T4; Class I,Zone 2, AEx nA IIC (C-UL)Class I, Division 2, GroupsA, B, C, D, T4; Class I,Zone 2, Ex nA IIC (DEMKO)Ex nA IIC T4 GcSafety and Hazardous Locations StandardsThis product is designed to meet the requirements of thefollowing electrical equipment safety standards for measurement,control, and laboratory use: IEC 61010-1, EN 61010-1 UL 61010-1, CSA 61010-1 EN 60079-0:2012, EN 60079-15:2010 IEC 60079-0: Ed 6, IEC 60079-15; Ed 4 UL 60079-0; Ed 5, UL 60079-15.

10 Ed 3 CSA 60079-0:2011, CSA 60079-15:201218 | | NI 9862 Getting Started GuideNote For UL and other safety certifications, refer tothe product label or the Online Product CompatibilityThis product meets the requirements of the following EMCstandards for sensitive electrical equipment for measurement,control, and laboratory use: EN 61326 (IEC 61326): Class A emissions; Industrialimmunity EN 55011 (CISPR 11): Group 1, Class A emissions AS/NZS CISPR 11: Group 1, Class A emissions FCC 47 CFR Part 15B: Class A emissions ICES-001: Class A emissionsNote For the standards applied to assess the EMC ofthis product, refer to the Online Product For EMC compliance, operate this device withshielded 9862 getting started guide | National Instruments | 19CE Compliance This product meets the essential requirements of applicableEuropean Directives, as follows: 2014/35/EU; Low-Voltage Directive (safety) 2014/30/EU; Electromagnetic Compatibility Directive(EMC) 94/9/EC; Potentially Explosive Atmospheres (ATEX)Online Product CertificationRefer to the product Declaration of Conformity (DoC) foradditional regulatory compliance information.