National Instruments 9862 Getting Started Manual

GETTING STARTED GUIDE

NI 9862

1-Port, High-Speed CAN Module

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This document explains how to connect to the National
Instruments 9862.

The NI 9862 module requires the latest NI-XNET software to be
installed. The latest version of the NI-XNET software is at

ni.com/downloads.

Note Before you begin, complete the software and

hardware installation procedures in your chassis
documentation.

Note The guidelines in this document are specific to

the NI 9862. The other components in the system might
not meet the same safety ratings. Refer to the
documentation for each component in the system to
determine the safety and EMC ratings for the entire
system.

Safety Guidelines

Operate the NI 9862 only as described in this document.

2 | ni.com | NI 9862 Getting Started Guide

Hot Surface This icon denotes that the component

may be hot. Touching this component may result in
bodily injury.

Caution Do not operate the NI 9862 in a manner not

specified in this document. Product misuse can result in
a hazard. You can compromise the safety protection
built into the product if the product is damaged in any
way. If the product is damaged, return it to National
Instruments for repair.

Safety Guidelines for Hazardous Locations

The 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 T4
and Ex nA IIC T4 hazardous locations; and nonhazardous
locations only. Follow these guidelines if you are installing the
NI 9862 in a 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
area is known to be nonhazardous.

NI 9862 Getting Started Guide | © National Instruments | 3

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 Division 2 and Zone 2 applications,

install the system in an enclosure rated to at least IP54
as defined by IEC/EN 60079-15.

Caution For Zone 2 applications, install a protection

device between the CAN signals and the NI 9862 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 Hazardous Locations Use in
Europe and Internationally

The NI 9862 has been evaluated as Ex nA IIC T4 Gc equipment
under DEMKO Certificate No. 07 ATEX 0626664X and is
IECEx 14.0089X certified. Each NI 9862 is marked II 3G and
is suitable for use in Zone 2 hazardous locations, in ambient
temperatures of -40 °C ≤ Ta ≤ 70 °C. If you are using the NI 9862

4 | ni.com | NI 9862 Getting Started Guide

in Gas Group IIC hazardous locations, you must use the device in
an NI chassis that has been evaluated as Ex nC IIC T4, Ex IIC
T4, Ex nA IIC T4, or Ex nL IIC T4 equipment.

Caution You must make sure that transient

disturbances do not exceed 140% of the rated voltage.

Caution The system shall only be used in an area of

not more than Pollution Degree 2, as defined in
IEC 60664-1.

Caution The system shall be mounted in an

ATEX/IECEx-certified enclosure with a minimum
ingress protection rating of at least IP54 as defined in
IEC/EN 60079-15.

Caution The enclosure must have a door or cover

accessible only by the use of a tool.

Wiring the NI 9862

The NI 9862 has one 9-pin male D-Sub connector that provides
connections to a CAN bus. The NI 9862 has pins for CAN_H and

NI 9862 Getting Started Guide | © National Instruments | 5

CAN_L, to which you connect the CAN bus signals. Connect
these signals using twisted-pair cable.

The port has two common pins (COM) that are internally
connected to the module’s isolated reference and serve as the
reference ground for CAN_H and CAN_L. You can connect the
CAN bus reference ground (sometimes referred to as CAN_V-) to
one or both COM pins. The port also has an optional shield pin,
SHLD, that you can connect to a shielded CAN cable.
Connecting SHLD may improve signal integrity and EMC
performance in a noisy environment.

Caution You must use a UL listed ITE power supply

marked LPS with the NI 9862.

The NI 9862 requires an external power supply of +9 to +30 V to
operate. Supply power to the NI 9862 V

SUP

pin.

Note Power on V

SUP

is required for CAN operation.

The NI 9862 pinout is listed in Table 1.

The NI 9862 features software-selectable bus termination for
High-Speed CAN transceivers. On the NI 9862, you can enable

6 | ni.com | NI 9862 Getting Started Guide

120 Ω termination resistors between CAN_H and CAN_L
through an API call. Table 3 lists recommended termination
resistor values.

Table 1. Pin Assignments for the NI 9862

Connector Pin Signal

6
7
8
9

1
2
3
4
5

1 No Connection (NC)

2 CAN_L

3 COM

4 NC

5 SHLD

6 COM

7 CAN_H

8 NC

9 V

SUP

NI 9862 Getting Started Guide | © National Instruments | 7

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, 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 two nodes at the far 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 (Rt) locations.

8 | ni.com | NI 9862 Getting Started Guide

Figure 1. CAN Bus Topology and Termination Resistor Locations

CAN

Node

CAN

Node

CAN

Node

R

t

R

t

CAN

Node

CAN_H

CAN_L

CAN_H

CAN_L

CAN_H

CAN_L

CAN_H

CAN_L

Bus Cable Length

Stub

Length

Connecting a CAN Bus to the NI 9862

You can connect the NI 9862 port to any location on a CAN bus.
Figure 2 shows one example of connecting the NI 9862 directly
to one CAN node.

NI 9862 Getting Started Guide | © National Instruments | 9

Figure 2. Connecting the NI 9862 to a CAN Device

C Series

Module

CAN Device

R

t

CAN
Cable
(With

Optional

Shield)

(SHLD)

CAN_H

CAN_L

V

sup

COM

R

t

(SHLD)

CAN_H

CAN_L

V

sup

COM

10 | ni.com | NI 9862 Getting Started Guide

Cabling Requirements for the NI 9862

Cable Specifications

Cables should meet the physical medium requirements specified
in ISO 11898, shown in Table 2. Belden cable (3084A) meets all
these requirements and should be suitable for most applications.

Table 2. ISO 11898 Specifications for Characteristics of a CAN_H and

CAN_L Pair of Wires

Characteristic Value

Impedance 95 Ω min,

120 Ω nominal,

140 Ω max

Length-related resistance 70 mΩ/m nominal

Specific line delay 5 ns/m nominal

NI 9862 Getting Started Guide | © National Instruments | 11

Termination Resistors

The termination resistors (Rt) should match the nominal
impedance of the CAN cable and therefore comply with the
values in Table 3. The onboard, software-selectable termination
has a nominal value of 120 Ω. If you are not using the onboard
termination, use the values listed in Table 3.

Table 3. Termination Resistor Specification

Characteristic Value Condition

Termination resistor, Rt100 Ω min, Minimum power dissipation:

220 mW

120 Ω nominal,

130 Ω max

Cable Lengths

The cabling characteristics and desired bit transmission rates
affect the allowable cable length. You can find detailed cable

12 | ni.com | NI 9862 Getting Started Guide

length recommendations 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 you should analyze each node for
signal integrity problems.

Number of CAN Nodes

The maximum number of nodes depends on the electrical
characteristics of the nodes on the network. If all nodes meet the
ISO 11898 requirements, you can connect at least 30 nodes to the
bus. You can connect higher numbers of nodes if the nodes’
electrical characteristics do not degrade signal quality below ISO
11898 signal level specifications.

The NI 9862 electrical characteristics allow at least 110 CAN
ports on a network.

NI 9862 Getting Started Guide | © National Instruments | 13

NI 9862 Hardware Overview

The NI 9862 has one full-featured CAN port that is isolated from
the other modules in the system. The port has a Bosch DCAN
CAN controller that is CAN 2.0B-compatible and fully supports
both 11-bit and 29-bit identifiers. The port also has an NXP
TJA1041AT High-Speed CAN transceiver that is fully
compatible with the ISO 11898 standard and supports baud rates
up to 1 Mbps.

Figure 3. NI 9862 Hardware Overview

Ext Pwr

Supply

Required

Rx

Tx

CAN

Controller

CAN_H

CAN_L

CAN

Transceiver

Rx

Tx

COM

V

sup

+

_

14 | ni.com | NI 9862 Getting Started Guide

NI 9862 Specifications

The following specifications are typical for the range -40 °C to
70 °C unless otherwise noted.

High-Speed CAN Characteristics

...........................................................Transceiver NXP TJA1041AT

...........................................................Max baud rate 1 Mbps

...........................................................CAN_H, CAN_L bus

lines voltage

-27 to +40 VDC

...........................................................CAN Supply voltage

range (V

SUP

)

+9 to +30 VDC

...........................................................MTBF Contact NI for Bellcore

MTBF or MIL-HDBK-217F
specifications.

NI 9862 Getting Started Guide | © National Instruments | 15

Power Requirements

...........................................................Power consumption from

chassis

1 W max (active mode)

...........................................................Thermal dissipation

(at 70 °C)

1.25 W max (active mode)

Physical Characteristics

To clean the module, wipe it with a dry towel.

...........................................................Weight Approx. 144 g (5.0 oz)

Safety

Connect only voltages that are within the following limits:

Maximum Voltage

1

...................................................Port-to-COM -27 to +40 VDC max,

Measurement Category I

1

The maximum voltage that can be applied or output between any port or V

SUP

terminal and a COM terminal without creating a safety hazard.

16 | ni.com | NI 9862 Getting Started Guide

Isolation

Port-to-earth ground

...........................................Continuous 60 VDC,

Measurement Category I

...........................................Withstand 500 V

rms

, verified by a 5 s

dielectric withstand test

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
equipment, limited-energy parts of equipment, circuits powered
by regulated low-voltage sources, and electronics.

Note Do not connect the NI 9862 to signals or use for

measurements within Measurement Categories II, III,
or IV.

NI 9862 Getting Started Guide | © National Instruments | 17

Hazardous Locations

...........................................................U.S. (UL) Class I, Division 2, Groups

A, B, C, D, T4; Class I,
Zone 2, AEx nA IIC T4

...........................................................Canada (C-UL) Class I, Division 2, Groups

A, B, C, D, T4; Class I,
Zone 2, Ex nA IIC T4

...........................................................Europe (DEMKO) Ex nA IIC T4 Gc

Safety and Hazardous Locations Standards

This product is designed to meet the requirements of the
following 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; Ed 3

• CSA 60079-0:2011, CSA 60079-15:2012

18 | ni.com | NI 9862 Getting Started Guide

Note For UL and other safety certifications, refer to

the product label or the Online Product Certification
section.

Electromagnetic Compatibility

This product meets the requirements of the following EMC
standards for sensitive electrical equipment for measurement,
control, and laboratory use:

• EN 61326 (IEC 61326): Class A emissions; Industrial
immunity

• 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 emissions

Note For the standards applied to assess the EMC of

this product, refer to the Online Product Certification
section.

Note For EMC compliance, operate this device with

shielded cables.

NI 9862 Getting Started Guide | © National Instruments | 19

CE Compliance

This product meets the essential requirements of applicable
European 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 Certification

Refer to the product Declaration of Conformity (DoC) for
additional regulatory compliance information. To obtain product
certifications and 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.

20 | ni.com | NI 9862 Getting Started Guide

Shock and Vibration

To meet these specifications, you must panel mount the system.

Operating vibration

...................................................Random (IEC

60068-2-64)

5 g

rms

, 10 Hz to 500 Hz

...................................................Sinusoidal (IEC

60068-2-6)

5 g, 10 Hz to 500 Hz

...........................................................Operating shock (IEC

60068-2-27)

30 g, 11 ms half sine; 50 g,
3 ms half sine;
18 shocks at 6 orientations

NI 9862 Getting Started Guide | © National Instruments | 21

Environmental

Refer to the manual for the chassis you are using for more
information about meeting these specifications.

...........................................................Operating temperature

(IEC 60068-2-1,
IEC 60068-2-2)

-40 °C to 70 °C

...........................................................Storage temperature

(IEC 60068-2-1,
IEC 60068-2-2)

-40 °C to 85 °C

...........................................................Ingress protection IP40

...........................................................Operating humidity

(IEC 60068-2-78)

10% RH to 90% RH,
noncondensing

...........................................................Storage humidity

(IEC 60068-2-78)

5% RH to 95% RH,
noncondensing

...........................................................Pollution Degree 2

...........................................................Maximum altitude 2,000 m

Indoor use only.

22 | ni.com | NI 9862 Getting Started Guide

Environmental Management

NI 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.

For additional environmental information, refer to the Minimize
Our Environmental Impact web page at ni.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 Equipment
(WEEE)

EU Customers At the end of the product life cycle, all

NI products must be disposed of according to local
laws and regulations. For more information about how
to recycle NI products in your region, visit ni.com/

environment/weee.

NI 9862 Getting Started Guide | © National Instruments | 23

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中国客户 National Instruments 符合中国电子信息产

品中限制使用某些有害物质指令(RoHS)。关于
National Instruments 中国 RoHS 合规性信息，请登
录 ni.com/environment/rohs_china。(For

information about China RoHS compliance, go to

ni.com/environment/rohs_china.)

Worldwide Support and Services

The National Instruments website is your complete resource for
technical support. At ni.com/support, you have access to
everything from troubleshooting and application development
self-help resources to email and phone assistance from NI
Application Engineers.

Visit ni.com/services for NI Factory Installation Services, repairs,
extended warranty, and other services.

24 | ni.com | NI 9862 Getting Started Guide

Visit ni.com/register to register your National Instruments
product. Product registration facilitates technical support and
ensures that you receive important information updates from NI.

A Declaration of Conformity (DoC) is our claim of compliance
with the Council of the European Communities using the
manufacturer’s declaration of conformity. This system affords the
user protection for electromagnetic compatibility (EMC) and
product safety. You can obtain the DoC for your product by
visiting ni.com/certification. If your product supports calibration,
you can obtain the calibration certificate for your product at

ni.com/calibration.

National Instruments corporate headquarters is located at
11500 North Mopac Expressway, Austin, Texas, 78759-3504.
National Instruments also has offices located around the world.
For telephone support in the United States, create your service
request at ni.com/support or dial 1 866 ASK MYNI (275 6964).
For telephone support outside the United States, visit the
Worldwide Offices section of ni.com/niglobal to access the branch
office websites, which provide up-to-date contact information,
support phone numbers, email addresses, and current events.

NI 9862 Getting Started Guide | © National Instruments | 25

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Instruments products/technology, refer to the appropriate location: Help»Patents in your software,
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