GCAN USBCAN-II Pro User manual

USBCAN-II Pro
USB to CAN adapter
User Manual
Ver.：V3.01 （2015/04/22）

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SHENYANG GUANGCHENG TECHNOLOGY CO.,LTD. USBCAN-II Pro
User Manual Shenyang Guangcheng Technology CO.LTD.
Revision History:
Ver. Date Reason
V1.00 2013/6/16 Create document
V2.01 2013/12/20 Fixed working parameters
V3.01 2015/04/22 Add some parameters

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SHENYANG GUANGCHENG TECHNOLOGY CO.,LTD. USBCAN-II Pro
User Manual Shenyang Guangcheng Technology CO.LTD.
Contents
1. Introduction................................................................................................................4
1.1 Functional Overview........................................................................................4
1.2 Properties at a Glance ......................................................................................4
1.3 Typical application...........................................................................................4
2. Installation..................................................................................................................5
2.1 Driver and software installation.......................................................................5
2.2 Connect to PC..................................................................................................5
2.3 Connect to CAN-Bus.......................................................................................5
3. Adapter in use ............................................................................................................7
3.1 Connect to USB ...............................................................................................7
3.2 Connect to CAN...............................................................................................7
3.3 CAN-Bus terminal resistance ..........................................................................7
3.4 System LED.....................................................................................................8
4. ECAN Tools introduction..........................................................................................9
4.1 Start..................................................................................................................9
4.2 Transmit/Receive data......................................................................................9
4.3 CAN-Bus diagnosis function.........................................................................10
4.4 Relay & Offline..............................................................................................10
4.5 Other functions...............................................................................................11
5. Secondary development...........................................................................................12
6. Technical Specifications..........................................................................................13
Appendix: CAN2.0B frame format..............................................................................14
Sales.............................................................................................................................16

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SHENYANG GUANGCHENG TECHNOLOGY CO.,LTD. USBCAN-II Pro
User Manual Shenyang Guangcheng Technology CO.LTD.
1. Introduction
1.1 Functional Overview
USBCAN-II Pro adapter is a debug or analysis tool with two CAN-Bus channel.
Using this adapter, PC can quickly connect to CAN-Bus network through USB
interface, and become a intelligent node of CAN-Bus to transmit/receive CAN-Bus
data.Adapter comes with isolation, and can be used in different Windows systems.
Device driver, software and programming interfaces(VC, VB, Net, Delphi, Labview,
C++Builder) exist for different operating systems, so programs can easily access a
connected CAN bus.
1.2 Properties at a Glance
Adapter for USB connection (USB 1.1, compatible with USB 2.0);
USB voltage supply;
Bit rates up to 1 Mbit/s Time stamp resolution 1μs;
Compliant with CAN specifications 2.0A (11-Bit ID) and 2.0B (29-Bit ID);
CAN-Bus connection via OPEH6, PHOENIX;
NXP SJA1000 CAN controller;
NXP PCA82C251 CAN transceiver;
Support ECAN Tools software;
Galvanic isolation on the CAN connection up to 1500 V;
Extended operating temperature range from -40 to 85 °C;
Device driver and software support Windows 2000/2003/XP/7/8/10;
Dimensions：(L)95mm * (W)65mm * (H)26mm.
1.3 Typical application
Test CAN-Bus network or device;
Automotive electronics development;
Electrical system communication test.
industrial control network.
Listen all CAN-Bus communication.

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2. Installation
This chapter describes how to connect the USB-CAN adapter to the computer
and the precautions when connecting the USB-CAN adapter to the computer for the
first time.
2.1 Driver and software installation
Note: Before install the driver or software, please ensure that the user login
windows account is administrator, or the user account has to install the driver and
software related permissions, otherwise it may lead to the installation failed.
2.1.1 Install driver and software
ECAN Tools has been integrated hardware driver installation program, users can
directly install ECAN Tools.
If you only need to install the driver, please enter the “driver” folder, select the
installation file that corresponds to the system type. (“DriverSetup.exe” for 32-bit.
“DriverSetup64.exe” for 64-bit)
2.1.2 Uninstall driver and software
Users can run the DriverSetup.exe/ DriverSetup64.exe and click "Uninstall"
button to uninstall the installed device driver.
2.2 Connect to PC
The adapter can be connected directly to a PC using a USB cable, if the USB
power supply is insufficient, you need to use external power supply.
2.2.1 USB power supply mode
USB power supply mode is suitable for the most applications, such as: when
USBCAN-II Pro is the only device in USB port.
2.2.2 External power supply mode
External power supply mode is suitable for the USB port using an USB HUB and
have already connect multiple USB device, this will lead to the adapter lack
of electricity supply.
2.3 Connect to CAN-Bus
USBCAN-II Pro has two CAN-Bus by a 6 Pin plug type terminal leads, these
CAN-Bus channels can connect two CAN-Bus network or devices. Terminal pin
definition as Table 2.1 below.
Pin Prot Name Function
1 CAN1 L CAN_L signal line
2 G CAN_GND
3 H CAN_H signal line
4 CAN2 L CAN_L signal line
5 G CAN_GND

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User Manual Shenyang Guangcheng Technology CO.LTD.
6 H CAN_H signal line
Table 2.1 USBCAN-II Pro adapter pin definition
Note: In practical use, most of the time just connected the CAN_H to CAN_H
and CAN_L connected to CAN_L then communication can be realized

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User Manual Shenyang Guangcheng Technology CO.LTD.
3. Adapter in use
3.1 Connect to USB
USBCAN-II Pro adapter can conTable to the USB2.0 full speed protocol
specification, compatible USB1.1.
When driver and software have been installed, connect the adapter to the USB
interface, a new USBCAN device named "GC - Tech USBCAN Device" can be found
in the PC Device manager. If there is no “!”or ”?”mark that the device run fine.
3.2 Connect to CAN
USBCAN-II Pro adapter connect to CAN-Bus as chapter 2.3, CAN_H to
CAN_H,CAN_L to CAN_L.
The CAN bus network adopts topological structure, only the two furthest
terminal need to connect 120Ωterminal resistance between CAN_H and CAN_L. For
branch connection, its length should not be more than 3m. CAN-bus nodes connection
as shown in figure 3.1
Figure 3.1 CAN-bus network
Note: the CAN-bus cable can use ordinary twisted-pair cable, shielded
twisted-pair cable. Theory of the maximum communication distance depends on
the bus baud rate, Their relationship as shown in the Table 3.1.
Baud rate Distance
1 Mbit/s 40m
500 kbit/s 110m
250 kbit/s 240m
125 kbit/s 500m
50 kbit/s 1.3km
20 kbit/s 3.3km
10 kbit/s 6.6km
5 kbit/s 13km
Table 3.1 relationship of baud rate and distance
3.3 CAN-Bus terminal resistance
In order to improving the communication reliability and eliminating CAN-bus

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User Manual Shenyang Guangcheng Technology CO.LTD.
terminal reflection, the two furthest terminal need to connect terminal resistance
between CAN_H and CAN_L as shown in figure 3.2. Terminal resistance values
determined by the characteristic impedance of the cables. Such as, the characteristic
impedance is 120Ω.
Figure 3.2 USBCAN-II Pro connect to other CAN devices
Note: USBCAN-II Pro adapter has integrated 120Ω terminal resistance, users
can choose whether enable, R1 for CAN1 and R2 for CAN2, press it to ON to
enabled.
3.4 System LED
USBCAN-II Pro adapter with one PWR indicator, one SYS indicator, two CAN
indicator to indicate the adapter status. More functions are shown in table 3.2 and 3.3.
Indicator Colour State
PWR Green Power indicator
SYS Green System indicator
CAN1 Green CAN1 singnal
CAN2 Green CAN2 singnal
Table 3.2 USBCAN-II Pro adapter indicator LED
When USBCAN-II Pro adapter power on, PWR and SYS light, indicates the
adapter has power supply, the system is initialized; Otherwise, a system power failure
or system errors has exist.
When USB-Bus data transfer, SYS indicator will blinking.
When CAN-Bus1 or CAN-Bus2 data transceiver, the corresponding CAN1,
CAN2 will blinking.
Indicator State Meaning
PWR ON Power supply normal
OFF Power supply error
SYS ON Standby mode
OFF Initialization error
Blinking USB data transmission
CAN1、CAN2 OFF CAN-Bus no data
Blinking CAN-Bus data transmission
Table 3.3 USBCAN-II Pro adapter LED state

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User Manual Shenyang Guangcheng Technology CO.LTD.
4. ECAN Tools introduction
Users can use ECAN Tools software to receive and transmit CAN data. Flexible
use of functions can help to more with less.
4.1 Start
1. If ECAN Tools has been installed, users can directly run it on the desktop.
2. Choose the device type and click "open device", one adapter will shown in the
below.
3. Choose work mode. Software provides three kinds of work mode: normal,
listen, selftest.
Normal: use this mode to transmit or receive data.
Listen: use this mode to receive data only, and don’t send response or clock.
Selftest: use this mode to test if the adapter is working well.
4. Choose baud rate according to the CAN-bus, don’t match will lead to
communication failed.
If you don’t know the baud rate, you can use “automatic identification of baud rate”
function to adapt.
4.2 Transmit/Receive data
Transmitting and receiving is the basic function of ECAN Tools, in this interface,
users can directly see the received CAN data, and sent the data to CAN-bus.

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4.3 CAN-Bus diagnosis function
CAN-Bus diagnosis function can detect the bus error frames and bus arbitration
lost.
CAN bus status display: indicate the CAN bus status include: bus normal,
passive error, active error、bus hung.
The CAN controller FIFO overflow: message within a certain period of time is
too dense, lead to data loss.
The CAN controller error alarm: when many of errors on the bus, error
counter exceeds the alarm threshold, and display the error count.
The CAN controller negative error: when many of send or receive errors, lead
to the CAN controller into the negative state, and display the error count.
CAN bus controller error: when nodes send or receive errors, error counter
value will be accumulate, and can catch the wrong information, such as ACK, CRC
error and so on.
4.4 Relay & Offline
4.4.1 Relay mode
CAN relay function can connect two CAN-Bus together whether they have the
same baud rate, the data flow can be seen in computer. This function can be used to
see the two nodes of data flow, which data is from which node, it can be used to crack

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User Manual Shenyang Guangcheng Technology CO.LTD.
communication protocol between two nodes.
4.4.2 Offline mode
Users can create an instructions in notepad (.txt) and download it to the adapter,
after that the adapter can into offline mode and do as the instructions each time the
adapter power up. Instructions such as: transmit, delay, triggering, receiving modified
send and so on. This function can easily achieve automatic control and can be used in
the production line test, crack communication protocol and so on, even though users
can not secondary development.
Example：
10,1,40000000,0000,144,0,8,01 02 03 04 05 06 07 08,100,500
Means：
power up wait 10ms，
initialize the CAN1 channel to transmit and receive data,
don't set the trigger,
don't replace ID and data,
transmit CAN ID 144,
standard,
data length eight,
data 01 02 03 04 05 06 07 08,
send times 100 times,
time interval 500ms.
4.5 Other functions
Save data: save the receiving list, save format: txt, can, csv and binary.
Display mode: scroll mode and list mode, list mode can classified data together
according to the rules.
Filter settings: users can set multi-stage filtering by editing the filter ID.
Data mask: masked ID is not displayed.
Error frames: error frames on the bus can be displayed / hidden.
If you want to know more about the software specific function and usage, please
see the “ECAN Tools software instructions”document.

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User Manual Shenyang Guangcheng Technology CO.LTD.
5. Secondary development
We will provide interface, example and library for secondary development
customers. Dll and library named: “ECANVCI.h”, “ECANVCI.lib”,
“ECANVCI.dll”. These libraries standards compliant, users can use these in VC,
VB and some other programming environment, to use these libraries, please see
“ECAN dynamic library manual”and Figure 5.1.
Figure 5.1 Secondary development function call process

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User Manual Shenyang Guangcheng Technology CO.LTD.
6. Technical Specifications
Connection
PC USB, type A
CAN OPEN6 PHOENIX
Interface
USB USB2.0 full speed, USB 1.1
CAN ISO 11898 standard, support CAN2.0A/B
CAN baud rate 5Kbit/s~1Mbit/s
Isolation 1000V, DC-DC
CAN terminal resister Integrated, code switch to enable
Power
Voltage +5V DC (USB port)
Current 200mA (Max)
Environment
Temperature -40℃~+85℃
Humidness 15%~90%RH, without condensation
EMC test EN 55024:2011-09
EN 55022:2011-12
IP grade IP 20
Basic
Dimension 95mm *65mm *26mm
Weight 100g

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Appendix: CAN2.0B frame format
CAN2.0B standard frame
CAN standard frame format is 11 bytes, including two parts: information and
data. The first 3 bytes for information.
Byte 1 for the frame information. Seventh (FF) means the frame format, in the
standard frame, FF = 0; Sixth (RTR) means the type of frame, RTR = 0 means for the
data frame, RTR = 1 for remote frame; DLC means the length of the data.
Byte 2, 3 for the message identifier.
Bytes 4~11 for the data of the data frame, remote frame is invalid.

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CAN2.0B extended frame
CAN extended frame format is 13 bytes, including two parts: information and
data. The first 5 bytes for information.
Byte 1 for the frame information. Seventh (FF) means the frame format, in the
standard frame, FF = 0; Sixth (RTR) means the type of frame, RTR = 0 means for the
data frame, RTR = 1 for remote frame; DLC means the length of the data.
Byte 2~5 for the message identifier.
Bytes 4~11 for the data of the data frame, remote frame is invalid.

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