National Instruments NI 9853 Bedienungsanleitung

OPERATING INSTRUCTIONS

NI 9853

2-Port, High-Speed CAN Module

NI 9853 Operating Instructions 2 ni.com

These operating instructions describe how to use the National

Instruments (NI) 9853 module. For information about installing,

configuring, and programming your system, refer to your system

documentation. The NI 9853 module requires the NI 9853 software

to be installed. The latest version of the NI 9853 software is 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 specifications. Refer to the documentation for

each component in your system to determine the safety

ratings and specifications for the entire system.

Safety Guidelines

Operate the NI 9853 only as described in these operating

instructions.

Hot Surface This icon denotes that the component may be

hot. Touching this component may result in bodily injury.

Safety Guidelines for Hazardous Locations

The NI 9853 is suitable for use in Class I, Division 2, Groups A, B,

C, D, T4 hazardous locations; Class I, Zone 2, AEx nA II T4 and

Ex nA II T4 hazardous locations; and nonhazardous locations only.

Follow these guidelines if you are installing the NI 9853 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.

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 Zone 2 applications, install the

CompactRIO system in an enclosure rated to at least

IP 54 as defined by IEC 60529 and EN 60529.

NI 9853 Operating Instructions 4 ni.com

Caution For Zone 2 applications, install a protection

device between the CAN signals and the NI 9853 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 Safe 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 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 bus. Each port on the NI 9853 has pins for

CAN_H and CAN_L, to which you connect the CAN bus signals.

These signals should be connected using twisted-pair cable.

Each port has two common pins (COM) that are internally

connected to the isolated reference of the module 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 of the COM pins. 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 in a noisy environment.

CAN0 of 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.

Note Although CAN0 of the NI 9853 does not require an

external power supply to operate, it can be connected to a

powered CAN bus without being damaged.

Pinouts for CAN0 and CAN1 of the NI 9853 are listed in Table 1

and Table 2.

Table 4 lists recommended termination resistor values.

NI 9853 Operating Instructions 6 ni.com

Table 1. Pin Assignments for CAN0

Connector Pin Signal

1No Connection (NC)

2CAN_L

3COM

4NC

5SHLD

6COM

7CAN_H

8NC

9NC

Table 2. Pin Assignments for CAN1

Connector Pin Signal

1No Connection (NC)

2CAN_L

3COM

4NC

5SHLD

6COM

7CAN_H

8NC

9 VSUP

NI 9853 Operating Instructions 8 ni.com

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 nodes at the 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.

Figure 1. 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

NI 9853 Operating Instructions 10 ni.com

Connecting a CAN Bus to the 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

another CAN node. CAN1 requires an external power supply on

the CAN bus.

Andere Handbücher für NI 9853

Inhaltsverzeichnis

Andere National Instruments Netzwerkkarte Handbücher

National Instruments

National Instruments NI 9478 Bedienungsanleitung

National Instruments

National Instruments Gigabit Ethernet Adapters Bedienungsanleitung

National Instruments

National Instruments NI 781xR Bedienungsanleitung

National Instruments

National Instruments NI 9229 Bedienungsanleitung

National Instruments

National Instruments NI PCIe-8255 Bedienungsanleitung

National Instruments

National Instruments NI 9264 Bedienungsanleitung

National Instruments

National Instruments NI 9225E Bedienungsanleitung

National Instruments

National Instruments NI-XNET Bedienungsanleitung

National Instruments

National Instruments Network Device NI PXI-7811R Bedienungsanleitung

National Instruments

National Instruments NI 9426 Bedienungsanleitung

National Instruments

National Instruments PCI-5911 Bedienungsanleitung

National Instruments

National Instruments Measure Data Acquisition Bedienungsanleitung

National Instruments

National Instruments NI 6509 Bedienungsanleitung

National Instruments

National Instruments NI 9425 Bedienungsanleitung

National Instruments

National Instruments NI 9472 Bedienungsanleitung

National Instruments

National Instruments NI 9217 Bedienungsanleitung

National Instruments

National Instruments NI PCI-6110 Bedienungsanleitung

National Instruments

National Instruments NI 9234 Bedienungsanleitung

National Instruments

National Instruments NI 9265 Bedienungsanleitung

National Instruments

National Instruments DAQCard-1200 Bedienungsanleitung

National Instruments

National Instruments NI 9401 Bedienungsanleitung

National Instruments

National Instruments MXI Series Bedienungsanleitung

National Instruments

National Instruments Network Adapter NI PXIe-6672 Bedienungsanleitung

National Instruments

National Instruments Network Device DAQ S Bedienungsanleitung

Beliebte Netzwerkkarte Handbücher anderer Marken

FirstComm

FirstComm OBiWiFi5G Bedienungsanleitung

Sun Microsystems

Sun Microsystems Interface Adapter Bedienungsanleitung

TRENDnet

TRENDnet TU2-ETG Bedienungsanleitung

YASKAWA

YASKAWA SI-EN3 Bedienungsanleitung

Paradyne

Paradyne BitStorm 2600 IP DSLAM Bedienungsanleitung

Belkin

Belkin F5D7050 Bedienungsanleitung

3Com

3Com EtherLink 3C509B Bedienungsanleitung

TRENDnet

TRENDnet TEG-PCITX Bedienungsanleitung

Cisco

Cisco MC16E Bedienungsanleitung

Delta Electronics

Delta Electronics Braking Modules VFDB Series Bedienungsanleitung

TwinMOS

TwinMOS Booming Bedienungsanleitung

Dialogic

Dialogic Media Board DM/V1200BTEPEQ Bedienungsanleitung

Buffalo

Buffalo AirStation WLI-PCM-L11GP Bedienungsanleitung

Bose

Bose PowerMatch Dante Bedienungsanleitung

Compaq

Compaq Wireless LAN 100 Bedienungsanleitung

TRENDnet

TRENDnet TEG-PCITXR Bedienungsanleitung

Gigafast

Gigafast EE101-AEX Bedienungsanleitung

D-Link

D-Link DHP?P309AV Bedienungsanleitung