National Instruments NI-9862 Bedienungsanleitung

NI-9862 Getting

Started

2022-07-06

Contents

NI-9862 Getting Started. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Cabling Requirements for the NI-9862. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

ni.com

NI-9862 Getting Started

This document explains how to connect to the NI-9862.

The NI-9862 module requires the latest NI-XNET soware to be installed. The latest

version of the NI-XNET soware is at ni.com/downloads.

Note Before you begin, read the NI-9862 Safety, Environmental,

and Regulatory Information and complete the soware 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

Caution Observe all instructions and cautions in the user documentation.

Using the product in a manner not specified can damage the product and

compromise the built-in safety protection.

Attention Suivez toutes les instructions et respectez toutes les mises

en garde de la documentation d'utilisation. L'utilisation du produit de

toute autre façon que celle spécifiée risque de l'endommager et de

compromettre la protection de sécurité intégrée.

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 Gc and Ex nA IIC T4 Gc hazardous locations;

NI-9862 Getting Started

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 o or the area is known to be nonhazardous.

Caution Do not remove modules unless power has been switched o or

the area is known to be nonhazardous.

Caution Substitution of components may impair suitability for Class I,

Division 2, or Zone 2.

Caution The system must be installed in an enclosure certified for the

intended hazardous (classified) location, having a tool secured cover/door,

where a minimum protection of at least IP54 is provided.

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 07ATEX 0626664X and is IECEx UL 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 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 Transient protection shall be provided that is set at a level not

exceeding 140% of the peak rated voltage value of 85 V at the supply

terminals to the equipment.

ni.com

NI-9862 Getting Started

Caution The system shall only be used in an area of not more than

Pollution Degree 2, as defined in IEC/EN 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 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 VSUP pin.

Note Power on VSUP is required for CAN operation.

The NI-9862 pinout is listed in the table below.

NI-9862 Getting Started

The NI-9862 features soware-selectable bus termination for High-Speed CAN

transceivers. On the NI-9862, you can enable 120 Ω termination resistors between

CAN_H and CAN_L through an API call. The Termination Resistor Specification

table lists recommended termination resistor values.

Figure 1. NI-9862 Pinout

Pin Signal

1 No Connection (NC)

2 CAN_L

3 COM

4 NC

5 SHLD

6 COM

7 CAN_H

8 NC

9 VSUP

Table 1. Pin Assignments for the NI-9862

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.

ni.com

NI-9862 Getting Started

The following figure shows a simplified diagram of a CAN bus with multiple CAN

nodes and proper termination resistor (Rt) locations.

Figure 2. CAN Bus Topology and Termination Resistor Locations

CAN

Node

CAN

Node

CAN

Node

RtRt

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. The following figure

shows one example of connecting the NI-9862 directly to one CAN node.

Figure 3. Connecting the NI-9862 to a CAN Device

C Series

Module

CAN Device

CAN

Cable

(With

Optional

Shield)

(SHLD)

CAN_H

CAN_L

Vsup

COM

(SHLD)

CAN_H

CAN_L

Vsup

COM

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.

NI-9862 Getting Started

Figure 4. NI-9862 Hardware Overview

Ext Pwr

Supply

Required

CAN

Controller

CAN_H

CAN_L

CAN

Transceiver

COM

Vsup

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 (VSUP)+9 to +30 VDC

MTBF Contact NI for Bellcore MTBF or MIL-HDBK-217F specifications.

Power Requirements

Power consumption from chassis 1 W maximum (active mode)

Thermal dissipation (at 70 °C) 1.25 W maximum (active mode)

ni.com

NI-9862 Getting Started

Physical Characteristics

Dimensions Visit ni.com/dimensions and search by module number.

Weight Approximately 144 g (5.0 oz)

Safety Voltages

Connect only voltages that are within the following limits:

Maximum voltage[1]

Port-to-COM -27 V DC to +40 V DC maximum, Measurement Category I

External power supply (Vsup) +9 V DC to +30 V DC

Isolation

Port-to-earth ground

Continuous 60 V DC, Measurement Category I

Withstand 500 V RMS, verified by a 5 s dielectric withstand test

Safety Compliance 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 C22.2 No. 61010-1

■EN 60079-0, EN 60079-7

■IEC 60079-0, IEC 60079-7

NI-9862 Getting Started

■UL 60079-0, UL 60079-7

■CSA C22.2 No. 60079-0, CSA C22.2 No. 60079-7

Note For safety certifications, refer to the product label or the Product

Certifications and Declarations section.

Hazardous Locations

U.S. (UL) Class I, Division 2, Groups A, B, C, D, T4; Class I, Zone 2, AEx nA IIC T4 Gc

Canada (C-UL) Class I, Division 2, Groups A, B, C, D, T4; Class I, Zone 2, Ex nA IIC T4 Gc

Europe (DEMKO) Ex nA IIC T4 Gc

Electromagnetic Compatibility

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

CE Compliance

■2014/34/EU; Potentially Explosive Atmospheres (ATEX)

Product Certifications and Declarations

Refer to the product Declaration of Conformity (DoC) for additional regulatory

compliance information. To obtain product certifications and the DoC for NI

products, visit ni.com/product-certifications, search by model number, and click

the appropriate link.

Shock and Vibration

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

ni.com

NI-9862 Getting Started

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