GC Tech GCAN-202 User manual
GCAN-202(CANET-II)
Ethernet-CAN converter
User Manual
Document version 3.01 (2017/12/01)
Shenyang Guangcheng Technology Co., Ltd. Industrial-grade Ethernet-CAN converter-GCAN-202
Product data sheet
2
Revision History:
Version
Date
Reason
V1.00
2013/06/16
Create document
V2.01
2013/12/20
Fixed working parameters
V3.01
2015/04/22
Add some parameters
Shenyang Guangcheng Technology Co., Ltd. Industrial-grade Ethernet-CAN converter-GCAN-202
Product data sheet
3
Contents
1 Introduction...............................................................................................................4
1.1 Overview..............................................................................................................4
1.2 Performance .........................................................................................................4
1.2.1 Hardware Features................................................................................................ 4
2 Installation.................................................................................................................6
2.1 Fix and installation...............................................................................................6
2.2 Software installation.............................................................................................6
2.3 Connect with computer ........................................................................................7
2.4 CAN-Bus connection ...........................................................................................7
3 Usage ..........................................................................................................................8
3.1 Connect with computer for configuration............................................................8
3.2 Ethernet connection..............................................................................................8
3.3 CAN-Bus connection .........................................................................................10
3.4 System status indicator light ..............................................................................11
4 CANet Config software...........................................................................................12
4.1 Connection .........................................................................................................12
4.2 Configure basic information...............................................................................13
4.3 Finish the configuration .....................................................................................15
4.4 Save/load configured files..................................................................................16
4.5 Update firmware kernel of GCAN-202..............................................................16
5 Usage of "CANet test" software............................................................................17
6 Usage of "Net Assist" software..............................................................................18
6.1 Preparatory work................................................................................................18
6.2 Test in TCP Sever mode.....................................................................................19
6.3 Test in TCP Client mode....................................................................................20
6.4 Test in UDP mode..............................................................................................21
7 Baud rate modification online................................................................................23
8 Secondary development..........................................................................................25
9 Technical specifications..........................................................................................26
Appendix A: CAN2.0B protocol frame format.......................................................27
Appendix B: definition of data flow.........................................................................29
Sales and service.........................................................................................................31
Shenyang Guangcheng Technology Co., Ltd. Industrial-grade Ethernet-CAN converter-GCAN-202
Product data sheet
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1 Introduction
1.1 Overview
The GCAN-202 (CANET-II) is a high-performance CAN-Bus converter that
integrates with two CAN-Bus channels & one Ethernet channel. CAN-Bus can
connect to Ethernet via GCAN-202, which makes the interconnection easier and
extends the application scope of CAN-Bus.
The GCAN-202 is a professional tool with CAN-Bus product development and data
conversion. Computer can connect to the CAN-Bus network by the Ethernet interface
quickly. The converter integrates with electrical isolation protection module to protect
Ethernet and CAN interfaces, which can avoid the damage for converter due to
instantaneous over current or over voltage.
Source code of sample program in VB supply for some basic secondary development,
conform to Socket work mode.
1.2 Performance
1.2.1 Hardware Features
High speed 32-bit industrial grade processor
Embedded Watchdog timer
FLASH storage, can store parameters
External voltage (DC+9~30V), current (DC+24V 50mA)
Electrostatic discharge (ESD) Immunity level: Contact Discharge: ±2KV, Air
Discharge: ±15KV
Fast transient Burst Impedance Level: ±1KV
Surge immunity level: ±1KV
Working temperature: -40.00℃~ 85.00℃
Working humidity: 5%~95%, no condensation
Dimensions: 118mm (L) * 93mm (W) * 23mm (H)
Shenyang Guangcheng Technology Co., Ltd. Industrial-grade Ethernet-CAN converter-GCAN-202
Product data sheet
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1.2.2 CAN Features
Integrate two CAN-Bus channels, with terminal connection
Support CAN2.0A and CAN2.0B, conform to ISO/DIS11898
Support communication baud rate: 5Kbps~1Mbps
Electric isolation, insulation level: DC 3000V
32 FIFO receiving buffers, maximum flow: transmit 8000 FPS, receive14000
FPS
1.2.3 Ethernet Features
Restore the network connection automatically after disconnecting, can establish a
TCP connection.
SOCKET working mode compatibility (TCP Server, TCP Client, UDP, etc),
program communication software according to standard SOCKET rules
Shenyang Guangcheng Technology Co., Ltd. Industrial-grade Ethernet-CAN converter-GCAN-202
Product data sheet
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2 Installation
This chapter introduces the dimension of GCAN-202, the method connected to
computer and some attentions first used.
2.1 Fix and installation
Figure2.1 Dimensions of GCAN-202
2.2 Software installation
The software has no need for installation, just double-click to open and use.
Shenyang Guangcheng Technology Co., Ltd. Industrial-grade Ethernet-CAN converter-GCAN-202
Product data sheet
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2.3 Connect with computer
The LAN interface of GCAN-202 make communication with Ethernet interface of
computer directly.
2.4 CAN-Bus connection
The GCAN-202 has two CAN-Bus channels, and it can connect one or two devices of
CAN-Bus network or CAN-Bus interface.
Port
Name
Function
CAN1
CAN1-H
CAN_H signal line
CAN1-G
CAN1-GND
CAN1-L
CAN1_L signal line
CAN2
CAN2-H
CAN2_H signal line
CAN2-G
CAN2_GND
CAN2-L
CAN2_L signal line
Table 2.1 the definition of CAN-Bus interface
Shenyang Guangcheng Technology Co., Ltd. Industrial-grade Ethernet-CAN converter-GCAN-202
Product data sheet
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3 Usage
3.1 Connect with computer for configuration
After supply power, use "CANet Config" software to configure working mode and
some basic operating parameters. (Recommend +12V/+24V standard power)
3.1.1 Restore Factory Settings
The default IP of GCAN-202: 192.168.1.10.
Press and hold "reset" button about five to six second until SYS & CAN 1 & CAN 2
blinking by turns. It has been restored factory setting successfully. As Figure 3.1
shows.
Note:All the parameters configured will lost after restoring factory settings.
Figure 3.1 Restore Factory Settings of GCAN-202
3.1.2 Change the computer’s IP address
Please ensure the computer with an Ethernet card. And the computer and GCAN-202
must be in the same network segment. If not, users must change the computer's IP
address.
3.2 Ethernet connection
GCAN-202 has three working modes: TCP Server, TCP Client, UDP.
3.2.1 TCP Server mode
In TCP Server mode, GCAN-202 won’t take the initiative to establish connection with
other equipments, and it always wait to connect with TCP Client. The process of
Shenyang Guangcheng Technology Co., Ltd. Industrial-grade Ethernet-CAN converter-GCAN-202
Product data sheet
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building the connection as Figure 3.2 shows.
Figure 3.2 TCP Server mode
3.2.2 TCP Client mode
In TCP Client mode, GCAN-202 will take the initiative to establish connection with
the pre-set TCP server. If failed, client will keep trying to connect TCP according to
the setting condition. The process of building the connection as Figure 3.3 shows.
Figure 3.3 TCP Client mode
3.2.3 UDP mode
In UDP mode, make the data communication through UDP protocol. UDP mode is a
simple communication mode, it won’t add too much traffic, which can supply a faster
communication than TCP mode to ensure real-time data package. The process of
building the connection as Figure 3.4 shows.
Shenyang Guangcheng Technology Co., Ltd. Industrial-grade Ethernet-CAN converter-GCAN-202
Product data sheet
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Figure 3.4 UDP mode
3.3 CAN-Bus connection
The GCAN-202 converter must be installed two 120 ohms terminal resistance at the
farthest end of CAN-Bus network. If the node number is more than 2, intermediate
nodes needn’t to install 120 ohms terminal resistance. For branch connections, the
length should not exceed 3 meters.
Figure 3.5 the CAN-Bus connect with other nodes
Note: CAN-Bus cable can be used with ordinary twisted-pair and shielded
twisted-pair.
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
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