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ESD C.2853.02, Руководство по оборудованию, Страница: 9 / 41

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Overview

1. Overview

1.1 Module Description

Figure  1:

 Block circuit diagram of CAN-CBM-Bridge/2

The   module  CAN-CBM-Bridge/2  can   connect   two   independent   CAN   nets.   The   nets   can   be
operated with different bit rates.

The module works with a MB90F453 microcontroller which buffers CAN data into a local SRAM.
The firmware is contained in the flash. Parameters are stored in a serial EEPROM. 

The ISO 11898-compliant CAN interfaces allow a maximum data transfer rate of 1 Mbit/s each.
The CAN interfaces are electrically isolated by optical couplers and DC/DC converters. They are
connected via 5-pin screw/plug connectors.

For matters of service and development the module features a serial interface. RS-232 is used as
physical interface. It is connected via a DSUB9 connector.

CAN-CBM-Bridge/2

Hardware Manual • Doc. No.: C.2853.21 / Rev. 1.4

Page 9 of 41

+5 V=

+5 V=

C

A

N

B

U

S

CAN

Physical

CAN

Layer

+5 V=

+5 V=

DC/DC-

Wandler

C

A

N

B

U

S

Physical

CAN

Layer

MSTB2,5/5-5,08

CAN

Microcontroller

MB90F543

electrical isolation

DC/DC

Converter

MSTB2,5/5-5,08

DSUB9

Connector

3-pole UEGM

Connector

Serial

EEPROM

Coding Switches

Serial Interface

RS-232

Power Supply

24 V(DC)

electrical isolation

Содержание C.2853.02

Страница 1: ...are Manual to Product C 2853 02 CAN CBM Bridge 2 Hardware Manual Doc No C 2853 21 Rev 1 4 Page 1 of 41 esd electronic system design gmbh Vahrenwalder Str 207 30165 Hannover Germany http www esd eu Pho...

Страница 2: ...e subject to esd s written approval 2016 esd electronic system design gmbh Hannover esd electronic system design gmbh Vahrenwalder Str 207 30165 Hannover Germany Phone 49 511 372 98 0 Fax 49 511 372 9...

Страница 3: ...ion inserted 2016 05 31 2 New chapter Hardware Installation 3 Chapter moved 4 2 1 4 2 2 Values corrected 5 Chapter moved link for manual download updated 6 Chapter moved 6 1 Name of connector revised...

Страница 4: ...ng relating to property damage DANGER Danger statements indicate a hazardous situation which if not avoided will result in death or serious injury WARNING Warning statements indicate a hazardous situa...

Страница 5: ...N CBM Bridge 2 and use care when handling Do not operate the CAN CBM Bridge 2 adjacent to heat sources and do not expose it to unnecessary thermal radiation Ensure an ambient temperature as specified...

Страница 6: ...rts that require maintenance by the user The CAN CBM Bridge 2 does not require any manual configuration of the hardware Unauthorized intervention in the device voids warranty claims Disposal Devices w...

Страница 7: ...X100 26 6 3 Access line for the serial Interface 27 6 4 Power Supply X101 UEGM 28 6 5 Conductor Connection Conductor Cross Sections 29 7 Correct Wiring of Electrically Isolated CAN Networks 30 7 1 Sta...

Страница 8: ...8 6 Support by esd 39 9 Declaration of Conformity 40 10 Order Information 41 Page 8 of 41 Hardware Manual Doc No C 2853 21 Rev 1 4 CAN CBM Bridge 2...

Страница 9: ...interfaces are electrically isolated by optical couplers and DC DC converters They are connected via 5 pin screw plug connectors For matters of service and development the module features a serial int...

Страница 10: ...ices See also page 25 for signal assignment of the connectors For conductor connection and conductor cross section see page 29 NOTICE Read chapter Hardware Installation on page 11 before you start wit...

Страница 11: ...ICE The CAN CBM Bridge 2 shall not be connected to a DC power supply network without protection against surge voltage Use an external overvoltage protection 1 Mount and connect the CAN CBM Bridge 2 ga...

Страница 12: ...CAN net 1 Temperature range 0 50 C ambient temperature 20 C 70 C on request Humidity max 90 non condensing Case dimensions W x H x D Width 20 mm height 85 mm depth 83 mm including hatrail mounting an...

Страница 13: ...ges 300 VDC 250 VAC Physical layer CAN physical layer in accordance with ISO 11898 2 transfer rate programmable from 10 Kbit s to 1 Mbit s Bus termination terminating resistor has to be set externally...

Страница 14: ...ctly CAN identifier 11 bit and 29 bit CAN identifiers also in combination Number of CAN identifier areas which can be masked to link the nets 2 masks per CAN net Number of CAN identifier links which c...

Страница 15: ...Din VCCout OUT ENABLE GNDout VCCin IN GNDin VCCout OUT ENABLE GNDout 5V 10K CRX0 5V VDD TX R GND BUSL RX BUSH 5V CAN_L CAN_H 5V 5V CAN_GND DC DC S7U 0505 2 4 CTX0 GND VCC GND 5V VCC CAN_GND 1 3 n c GN...

Страница 16: ...e short terms of the signals as used in the chapter Connector Assignments The signal description is given exemplary for the connection of the CAN CBM Bridge 2 to a PC INFORMATION For the connection of...

Страница 17: ...unequal 0 are only permissible to select customized configurations Special case Customized Configuration By means of the coding switches programmed configurations can be selected These customized conf...

Страница 18: ...age 10 shows errors in CAN network 0 and the middle LED 141 errors in CAN network 1 LED Colour Function Status Meaning LED 142 LED 141 yellow yellow status CAN 0 status CAN 1 off no power supply or CP...

Страница 19: ...set to 0 at power on Settings unequal 0 are only permitted for Customized Configuation see page 17 5 1 1 Commands After the power supply has been switched on the CAN CBM module wakes up and puts out a...

Страница 20: ...et 1 n 1 is to be configured to 10 kbit s From Table 8 you get the HexIndex 0xD Your input therefore is as follows Input B1 D Enter Bn 8000yyzz Alternatively you can configure the bit timing register...

Страница 21: ...mple the 11 bit identifier ID net 0 0x200 is mapped to the 11 bit identifier ID net 1 0x300 Input I0 200 I1 300 Enter I1 ID Net 1 I0 ID Net 0 This command assigns an identifier of CAN net 0 to an iden...

Страница 22: ...nguish between 11 bit and 29 bit identifiers The first bit is the distinction bit the following bit is the MSB of the CAN identifier etc Bit 30 Meaning 0 11 bit identifier 1 29 bit identifier In the f...

Страница 23: ...desired bridge function Input E Enter C You can delete a configuration again by means of the command C The command deletes all identifier assignments and resets the CAN bit rates to the default value...

Страница 24: ...I net from id from i net to id to Set single id forwarding max 13 per net D Read Show rotary switches state Q Reset 5 1 2 Change Existing Configurations It is not possible to modify single parameters...

Страница 25: ...c 5 Signal description CAN_Lx CAN_Hx CAN signals of CAN net x x 1 2 CAN_GNDx reference potential of the local CAN physical layer Shield shielding the shield lines of both CAN channels are linked direc...

Страница 26: ...onnector 9 pin DSUB connector male Pin Position Pin Assignment Signal Pin Signal 1 n c n c 6 2 RxD input n c 7 3 TxD output n c 8 4 n c n c 9 5 GND n c not connected Page 26 of 41 Hardware Manual Doc...

Страница 27: ...ge 2 to a PC is shown Figure 6 Assignment of Access line CAN CBM Bridge 2 Hardware Manual Doc No C 2853 21 Rev 1 4 Page 27 of 41 RxD GND TxD P1 PC 1 P2 CAN CBM Module 5 4 3 2 1 9 8 7 6 2 3 4 5 6 7 8 9...

Страница 28: ...supplied by means of the UEGM screw connectors integrated in the case They are suitable for lines with a cross section of up to 2 5 mm The connector assignment is the same on both sides of the case T...

Страница 29: ...Conductor cross section flexible with ferrule with plastic sleeve min max 0 25 2 5 mm Conductor cross section AWG kcmil min max 24 12 2 conductors with same cross section solid min max 0 2 1 mm 2 con...

Страница 30: ...for signal loss across the complete system and cabling parasitic loadings network imbalances ground offsets against earth potential and signal integrity Therefore the practical maximum number of nodes...

Страница 31: ..._GND has to be connected to the functional earth FE at exactly one point 4 A CAN net must not branch exception short cable stubs and has to be terminated with the characteristic impedance of the line...

Страница 32: ...emale contacts are available from esd order no C 1303 01 DSUB termination connectors with male contacts order no C 1302 01 or female contacts order no C 1301 01 and additional functional earth contact...

Страница 33: ...has to be terminated with the characteristic impedance of the line generally 120 10 at both ends between the signals CAN_L and CAN_H and not to CAN_GND 5 Keep cable stubs as short as possible l 0 3 m...

Страница 34: ...e twisted cables is unavoidable take care that the CAN_GND line is not interrupted Figure 11 Example of proper wiring with single shielded double twisted pair cables 7 3 3 Termination A termination re...

Страница 35: ...ction depending on the cable length are described in the CiA recommendation CiA 303 1 see CiA 303 CANopen Recommendation Part 1 Cabling and connector pin assignment Version 1 8 0 Table 2 Bit Rate kbit...

Страница 36: ...www concab de e g BUS PVC C 1x 2x 0 22 mm Order No 93 022 016 UL appr BUS Schleppflex PUR C 1x 2x 0 25 mm Order No 94 025 016 UL appr 7 6 2 Cable for heavy industrial Environment Applications Four Wi...

Страница 37: ...sistance of the CAN data pair conductors and the attached terminating resistors To test it please 1 Turn off all power supplies of the attached CAN nodes 2 Measure the DC resistance between CAN_H and...

Страница 38: ...a if there is a short circuit between CAN_GND and CAN_L but generally the error rate will increase strongly Make sure that there is no short circuit between CAN_GND and CAN_L 8 4 CAN_H CAN_L Voltage E...

Страница 39: ...see figure below 2 Measure the DC resistance between CAN_H and CAN_GND see figure below 3 Measure the DC resistance between CAN_L and CAN_GND see figure below The measured resistance has to be about 5...

Страница 40: ...CAN Troubleshooting Guide 9 Declaration of Conformity Page 40 of 41 Hardware Manual Doc No C 2853 21 Rev 1 4 CAN CBM Bridge 2...

Страница 41: ...10 Order information PDF Manuals Manuals are available in English and usually in German as well For availability of English manuals see table below Please download the manuals as PDF documents from o...

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