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Installation and technical Data

CAN-USB/2

Rev. 1.0

2

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Содержание CAN-USB/2

Страница 1: ...ctronic system design gmbh Vahrenwalder Str 207 30165 Hannover Germany www esd electronics com Fax 0511 37 29 8 68 Phone 0511 37 29 80 International 49 5 11 37 29 80 CAN USB 2 USB 2 0 CAN Interface Hardware Installation and technical Data to Product C 2066 xx ...

Страница 2: ...ign esd assumes no responsibility for the use of any circuitry other than circuitry which is part of a product of esd gmbh esd does not convey to the purchaser of the product described herein any license under the patent rights of esd gmbh nor the rights of others esd electronic system design gmbh Vahrenwalder Str 207 30165 Hannover Germany Phone 49 511 372 98 0 Fax 49 511 372 98 68 E mail info es...

Страница 3: ...n9 Date of print 22 06 2006 PCB version CAN USB 2 Rev 1 2 Changes in chapters The changes in the document listed below affect changes in the hardware as well as changes in the description of facts only Chapter Changes versus previous version First issue Technical details are subject to change without further notice ...

Страница 4: ...Installation and technical Data CAN USB 2 Rev 1 0 This page is intentionally left blank ...

Страница 5: ... Data 7 3 1 General technical Data 7 3 2 USB Interface and Microcontroller 7 3 3 CAN Interface 8 3 4 Software Support 8 3 5 Order Information 9 4 Connector Assignment 10 4 1 CAN Interface at DSUB9 Connector 10 4 2 USB Socket 11 5 Correctly Wiring Electrically Isolated CAN Networks 12 6 CAN Bus Troubleshooting Guide 16 6 1 Termination 16 6 2 CAN_H CAN_L Voltage 17 6 3 Ground 17 6 4 CAN Transceiver ...

Страница 6: ...Installation and technical Data CAN USB 2 Rev 1 0 2 This page is intentionally left blank ...

Страница 7: ...erface with an ARM LPC2292 micro controller for local CAN data management The module supports the USB 2 0 Hi Speed interface with data transfer rates of 480 Mbit s The ISO 11898 compliant CAN interface allows a maximum data transfer rate of 1 Mbit s Like many other features of CAN interfaces the bit rate can be set by means of software CAN interface and other voltage potentials are electrically is...

Страница 8: ...Overview Installation and technical Data CAN USB 2 Rev 1 0 4 1 2 Case View with LED and Connector Description Figure 1 2 1 CAN Interface and LEDs Figure 1 2 2 USB Interface ...

Страница 9: ...to the USB module short time switch off the module receives data from USB bus or sends data on USB bus LED300C Power on module is in operation the 5 V power supply is applied to the module LED300B CAN flashes data is received or send on the CAN bus LED300A OK on CAN interface is initialized bit rates are set off CAN Error occurred Table 1 3 Description of LED display ...

Страница 10: ...B connector Please remember that the CAN bus has to be terminated at both ends esd offers T connectors and terminators Additionally the CAN GND signal has to be grounded at exactly one point in the CAN network Therefore the CAN termination connectors have got a grounding contact A CAN device whose CAN interface is not electrically isolated corresponds to the grounding of the CAN GND 4 Connect your...

Страница 11: ...mm x 55 mm x 25 mm IP rating IP 40 Weight 70 g Table 3 1 General Data of CAN USB 2 Module Note Please note that the current consumption of the module of 250 mA has to be supplied high powered bus powered device The maximum current consumption of 250 mA has to be guaranteed also if a hub is used Therefore it is highly recommended to use a self powered hub 3 2 USB Interface and Microcontroller USB c...

Страница 12: ...c CAN 2 0A B Physical Layer according to ISO 11898 transmission rate programmable from 10 Kbit s to 1 Mbit s Bus termination has to be set externally Electrical isolation of CAN interfaces from other units via digital isolators and DC DC converters Table 3 3 Data of CAN interface 3 4 Software Support For CAN USB 2 drivers for Windows and Linux are available ...

Страница 13: ...r slave object licence C 2066 12 CAN USB 2 ME User manual in English 1 C 2066 21 CAN API ME CAN API manual in English to C 1101 02 1 C 2001 21 CAN USB 2 ENG Engineering manual in English 2 Content Circuit diagrams PCB top overlay drawing data sheets of significant components C 2066 25 1 If ordered together with the module the manual is included in the shipment 2 This manual is liable for costs ple...

Страница 14: ...ment Signal Pin Signal 1 reserved CAN_GND 6 2 CAN_L CAN_H 7 3 CAN_GND reserved 8 4 reserved reserved 9 5 Shield 9 pin DSUB connector Signal description CAN_L CAN_H CAN signal lines CAN_GND reference potential of local CAN physical layer CAN_GND optional reference potential of local CAN physical layer Shield Shielding connected with case of 9 pin DSUB connector reserved reserved for future applicat...

Страница 15: ...USB Socket Attention The module may only be operated at USB nets with USB interface version numbers 1 1 interface However note that using versions earlier than 2 0 reduces the data transfer rate Pin position Pin Assignment Pin Signal 1 VBUS 2 D 3 D 4 GND Shell Shield USB socket series B ...

Страница 16: ...N net must not branch exception short dead end feeders and has to be terminated by the wave impedance of the wire generally 120 W 10 at both ends between the signals CAN_L and CAN_H and not at GND 2 A CAN data wire requires two twisted wires and a wire to conduct the reference potential CAN_GND For this the shield of the wire should be used 3 The reference potential CAN_GND has to be connected to ...

Страница 17: ...onnector Order no C 1311 03 Cabling for devices which have only one CAN connector per net use T connector and dead end feeder shorter than 0 3 m available as accessory Figure Example for correct wiring when using single shielded wires Terminal Resistance use external terminator because this can later be found again more easily 9 pin DSUB terminator with male and female contacts and earth terminal ...

Страница 18: ...urbances like e g longer dead end feeders Exception CAN CBM DIO8 AI4 and AO4 these modules work only up to 10 m with 1 Mbit s Bit rate Kbit s Typical values of reachable wire length with esd interface lmax m CiA recommendations 07 95 for reachable wire lengths lmin m 1000 800 666 6 500 333 3 250 166 125 100 66 6 50 33 3 20 12 5 10 37 59 80 130 180 270 420 570 710 1000 1400 2000 3600 5400 7300 25 5...

Страница 19: ...SA UL CSA approved ConCab GmbH Äußerer Eichwald 74535 Mainhardt Germany www concab de e g BUS PVC C 1 x 2 x 0 22 mm Order No 93 022 016 UL appr BUS Schleppflex PUR C 1 x 2 x 0 25 mm Order No 94 025 016 UL appr SAB Bröckskes GmbH Co KG Grefrather Straße 204 212b 41749 Viersen Germany www sab brockskes de e g SABIX CB 620 1 x 2 x 0 25 mm Order No 56202251 CB 627 1 x 2 x 0 25 mm Order No 06272251 UL ...

Страница 20: ...d load impedance are equal these reflections are eliminated This test measures the series resistance 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 CAN_L at the middle and ends of the network see figure above The measured value should be between 50 and 70 ...

Страница 21: ... should be between 2 0 V and 4 0 V If it is lower than 2 0 V or higher than 4 0 V it is possible that one or more nodes have faulty transceivers For a voltage lower than 2 0 V please check CAN_H and CAN_L conductors for continuity For a voltage higher than 4 0 V please check for excessive voltage To find the node with a faulty transceiver please test the CAN transceiver resistance see next page 6 ...

Страница 22: ...th of the circuits may increase the leakage current in these circuits To measure the current leakage through the CAN circuits please use an resistance measuring device and 1 Disconnect the node from the network Leave the node unpowered 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 Norma...

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