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National Instruments NI 9852, Руководство по началу работы

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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 on the NI 9852 has a Philips SJA1000
controller that is CAN 2.0B-compatible and fully supports both
11-bit and 29-bit identifiers. The port also has a Philips
TJA1054A Low-Speed/Fault-Tolerant CAN transceiver that is
fully compatible with the ISO 11898 standard and supports baud
rates up to 125 Kbps.

NI 9852 Getting Started Guide

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© National Instruments

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13

Содержание NI 9852

Страница 1: ...GETTING STARTED GUIDE NI 9852 2 Port Low Speed Fault Tolerant CAN Module...

Страница 2: ...lines in this document are specific to the NI 9852 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 th...

Страница 3: ...only Follow these guidelines if you are installing the NI 9852 in a potentially explosive environment Not following these guidelines may result in serious injury or death Caution Do not disconnect I O...

Страница 4: ...ice between the CAN signals and the NI 9852 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 Hazard...

Страница 5: ...stem 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 acces...

Страница 6: ...s 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 Both of the ports o...

Страница 7: ...Table 1 Pin Assignments for CAN0 Connector Pin Signal 6 7 8 9 1 2 3 4 5 1 No Connection NC 2 CAN_L 3 COM0 4 NC 5 SHLD 6 COM0 7 CAN_H 8 NC 9 VSUP0 NI 9852 Getting Started Guide National Instruments 7...

Страница 8: ...4 5 1 No Connection NC 2 CAN_L 3 COM0 4 NC 5 SHLD 6 COM0 7 CAN_H 8 NC 9 VSUP0 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 e...

Страница 9: ...low speed fault tolerant CAN bus with termination resistor placements Figure 1 CAN Bus Topology and Termination Resistor Locations RTL CAN_L RTH CAN_H RTL CAN_L RTH CAN_H RTL CAN_L RTH CAN_H CAN_H CA...

Страница 10: ...onnecting Both Ports of the 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...

Страница 11: ...084A meets all these requirements and should be suitable for most applications Table 3 ISO 11898 Specifications for Characteristics of a CAN_H and CAN_L Pair of Wires Characteristic Value Length relat...

Страница 12: ...n of the existing network or the termination of the individual device before connecting it to a Low Speed Fault Tolerant port Philips recommends an overall RTH and RTL termination of 100 to 500 each f...

Страница 13: ...h port on the NI 9852 has a Philips SJA1000 controller that is CAN 2 0B compatible and fully supports both 11 bit and 29 bit identifiers The port also has a Philips TJA1054A Low Speed Fault Tolerant C...

Страница 14: ...y 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 Tx Tx CAN Controller CAN Controller NI 9852 Specifications The following specifications are typic...

Страница 15: ...N_L bus lines voltage 27 to 40 VDC Supply voltage range VSUP0 VSUP1 CAN0 8 to 36 VDC CAN1 8 to 36 VDC RRTH 1 11 k 0 5 or 4 99 k 0 5 RRTL 1 11 k 0 5 or 4 99 k 0 5 MTBF 1 052 836 hours at 25 C Bellcore...

Страница 16: ...ents 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 5 W max Sleep mode 1 2 W max Physical Charact...

Страница 17: ...lation Port to port Continuous 60 VDC Measurement Category I up to 5 000 m altitude Withstand 500 Vrms verified by a 5 s dielectric withstand test 1 The maximum voltage that can be applied or output b...

Страница 18: ...NS 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...

Страница 19: ...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...

Страница 20: ...tic 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...

Страница 21: ...w 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 Confor...

Страница 22: ...Hz Operating shock IEC 60068 2 27 30 g 11 ms half sine 50 g 3 ms half sine 18 shocks at 6 orientations Environmental Refer to the manual for the chassis you are using for more information about meeti...

Страница 23: ...vironmentally responsible manner NI recognizes that eliminating certain hazardous substances from our products is beneficial to the environment and to NI customers For additional environmental informa...

Страница 24: ...e NI products in your region visit ni com environment weee RoHS National Instruments RoHS National Instruments RoHS ni com environment rohs_china For information about China RoHS compliance go to ni c...

Страница 25: ...er 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...

Страница 26: ...You can find information about end user license agreements EULAs and third party legal notices in the readme file for your NI product Refer to the Export Compliance Information at ni com legal export...

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