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Chengdu Ebyte Electronic Technology Co.,Ltd.

ECAN-U01 User Manual

Copyright ©2012–2022,Chengdu Ebyte Electronic Technology Co.,Ltd.

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6.3. CAN bus terminating resistor

In order to enhance the reliability of CAN communication and eliminate the reflection interference of the CAN bus

terminal signal, the two farthest end points of the CAN bus network are usually added with a terminal matching resistor,
and the value of the terminal matching resistor is determined by the characteristic impedance of the transmission cable.
For example, the characteristic impedance of the twisted pair is 120Ω , then the two endpoints on the bus should also
integrate 120Ω termination resistors.
Note: ECAN-U01 has integrated 120Ω terminal resistance, you can choose whether to connect the resistance to the bus
through the DIP switch, the DIP switch is next to the 6pin terminal, R1 , R2 correspond to the terminal resistance of
CAN1 , CAN2 , dial to ON position to enable the resistor.

7. Function details

7.1. Save data and real-time save function

The user can save all the data in the current send / receive list to the local. The save format is shown in the following
table:

file type

file format

editor

Text file

.txt

notepad

The text file is convenient for data preservation, and can be formatted and imported into excel for later analysis.
Click " Real-time save " on the toolbar , set the text type and file name of the real-time save, and then start the data
real-time save function (ie, set the save node A ), click again (ie, set the save node B ), the system will stop saving, All

Summary of Contents for ECAN-U01

Page 1: ...1 ECAN U01...

Page 2: ...s 9 General Specifications 9 6 Equipment usage 10 6 1 Connect with PC 10 6 2 Connectwith CAN bus 10 6 3 CAN bus terminating resistor 11 7 Function details 11 7 1 Save data and real time save function...

Page 3: ...l has a built in 120 ohm optional resistance which is controlled by a DIP switch which is convenient to use integrated CAN interface electrical isolation protection module to avoid instantaneous overc...

Page 4: ...to their needs 2 Connect the computer to the device through a Type B USB cable Open the debugging software and enter the communication interface after configuring parameters such as the CAN baud rate...

Page 5: ...t number You need to select the serial port number corresponding to the device 2 Open Device button Click this button to access the USBCAN device If USB device open error is displayed please check whe...

Page 6: ...that it is especially important to set the baud rate Many customers report that there is no data after the device is connected or the bus is wrong In fact the baud rate is not set so click OK to open...

Page 7: ...01 User Manual Copyright 2012 2022 Chengdu Ebyte Electronic Technology Co Ltd 7 3 Installation size Equipment dimensions length including terminals mm width mm height mm the schematic diagram is shown...

Page 8: ...e position and definition of each interface of ECAN U01 are shown in the figure Pins from left to right Port Name Function 1 DC 8 28V DC8 28V USBCAN auxiliary power supply generally do not need to be...

Page 9: ...green Corresponding to CAN channel bus error After the ECAN U01 is powered on the four indicators light up at the same time and then the PWR and Work lights are always on but the CAN1 and CAN2 lights...

Page 10: ...be connected 6 1 2 External power supply mode The external power supply mode is suitable for the occasions where the PC uses a USB bus hub HUB or has connected multiple USB terminal devices so that t...

Page 11: ...ors Note ECAN U01 has integrated 120 terminal resistance you can choose whether to connect the resistance to the bus through the DIP switch the DIP switch is next to the 6pin terminal R1 R2 correspond...

Page 12: ...chnology Co Ltd 12 data from the start A to the end B are written to the save file 7 2 Pause display function Click Pause to pause the currently scrolling data window The device and software can still...

Page 13: ...received or sent data The scrolling display means that the received data scrolls down continuously in the receiving list and the current window sees the latest data 7 4 Clear function The data in the...

Page 14: ...re not within the filter range will be filtered out The demo is as follows 7 6 Bus diagnostic function When a bus error occurs during the use of the device the CAN1 CAN2 data light of the device will...

Page 15: ...intuitively and special functions such as cyclic sending can be set Editing frame information is very intuitive please note that spaces need to be entered between each byte when inputting data here t...

Page 16: ...printed in Chinese and the English manual only provides electronic documents If necessary please download it from our official website We only provide product manuals according to a certain proportio...

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