CANET-E(2E)-U User Manual

Transcription

1 User Manual High Performance Single/dual-channel Ethernet-to-CAN Converter UM V1.04 User Manual Item Keywords Abstract Content CAN-bus Ethernet Single/dual-channel High performance CANET-E(2E)-U high-performance single/dual-channel Ethernet-to-CAN converter is an excellent converter based on ZHIYUAN Electronics advanced CAN bus technology and operating system technology. It can ensure data integrity and real-time capability.

2 Revision History Version Date Modifications V /08/29 Created the document. V /01/15 Modified and reported port CMD errors. V /04/13 Modified document format errors. V /01/27 Modified mechanical dimensions. V /01/03 Added clear error state command. i

3 Contents Chapter 1: Function Introduction Description Features Powerful Hardware Perfect Function Specifications LAN CAN Software Features EMC Characteristics Electrical Parameters Mechanical Dimensions... 4 Chapter 2: Hardware Interface Description Appearance Power Interface Ethernet Interface Restore Factory Settings and Reset Button CAN Port LED Indicator...7 Chapter 3: Usage Instruction Device IP Factory Setting Obtain Device IP by User PC and Device Network Segment Detection Communication between CANET-E(2E)-U and USBCAN Interface Card Chapter 4: Operating Mode TCP Server mode TCP Client mode UDP mode Chapter 5: ZNetCom Software Configuration Install the configuration software Obtain device configuration information Modify device configuration information Configuration parameter description Save and restore settings Save settings Restore settings Upgrade the firmware ii

4 Chapter 6: Appendix Data conversion format of CANET-E(2E)-U operating port Data conversion format of the TCP notification port for the CAN status of CANET-E(2E)-U...39 Chapter 7: Rights & Statements iii

5 1ChapterChapter 1: Function Introduction 1.1 Description CANET-E(2E)-U are two high-performance industrial Ethernet and CAN-bus data conversion devices developed by, which are integrated with 1-channel/2-channel CAN-bus interfaces and 1-channel Ethernet interface as well as TCP/IP protocol stack. By using the CANET-E(2E)-U, users can easily connect the CAN-bus network and Ethernet network to further expand the CAN-bus network range. CANET-E(2E)-U is the industrial product that can operate in the temperature range of -40 ~ 85. It is equipped with 1-channel 10M/100M self-adaptive Ethernet interface, and the maximum CAN communication Baud rate is 1Mbps. It includes various working modes such as TCP Server, TCP Client, UDP, etc. Each CAN interface supports 6 IP section settings and up to 100 TCP or UDP connections. Users can flexibly set relevant configuration parameters by using the configuration software. The typical application is shown as follow: Figure 1-1: CANET typical application 1

6 1.2 Features Powerful Hardware High-speed 800MHz main frequency 32-bit processor. 10M/100M self-adaptive Ethernet interface, 2KV electromagnetic isolation. 1-channel/2-channel CAN port, 2.5KVDC pressure isolation. 5k~1000kbps programmable CAN port Baud rate. Embedded hardware watchdog timer. 9V~24V DC power supply range. Operating temperature: -40 ~ 85. Humidity: 5% - 95% RH, no condensation. Rugged metal housing, SECC metal (1.1mm). Designed for industrial environment Perfect Function Supports static or dynamic IP access. Supports heartbeat and timeout interrupt function. The working port is fixed, and the target IP and target port can be set. The link will be connected automatically if the network is disconnected, so that the reliable TCP connections can be established. TCP supports up to 200 connections, allowing 6 groups of users to manage a CAN port simultaneously. Each CAN port supports 6 groups of target IP segments in the UDP mode, allowing multiple users to manage a CAN device simultaneously. Supports protocols including ETHERNET, ARP, IP, ICMP, UDP, DHCP, DNS and TCP. Complies with the SOCKET operating mode (TCP Server, TCP Client, UDP, etc); the upper computer communication software should be programmed according to the standard SOCKET rule. Two-way transparent transmission with CAN data and Ethernet data (see Appendix for the format). Ethernet receive buffer can be adjusted. Users can select the most appropriate balance between real-time and large-capacity buffer. Flexible CAN port data frame settings to satisfy various subcontracting requirements for users. Supports the acceptance filter function of CAN port. Users can select the ID range needed to be received, so as to filter the unwanted CAN frame. Each CAN port can be configured as different operating modes so as to apply in various fields flexibly. Each CAN port also enable the diagnostics port, and the upper computer can obtain the corresponding error state of the CAN port by connecting this port. 2

7 The Windows platform configuration software can be used to configure the working parameters. The Windows platform configuration software provides free function libraries, including easy-to-use API function library, therefore users may design their own configuration software easily. Supports local system firmware upgrading. 1.3 Specifications LAN 10M/100M Ethernet, RJ145 interface, 2KV electromagnetic isolation CAN The number of CAN ports: 2. Interface type: 2EDG,90, terminal, 2.5KV electromagnetic isolation. Signal line: CAN0H, CAN0L, CAN1H, CAN1L. Baud rate: 5k~1000kbps Software Features Supported TCP/IP protocols: ETHERNET, ARP, IP, ICMP, UDP, TCP, DHCP and DNS. Tool software: ZnetCom configuration software (2.81 version or above), CANtest test tool, TCP/UDP test tool. Configuration mode: ZnetCom2 Windows platform configuration software EMC Characteristics Electrostatic discharge (ESD) immunity test Contact discharge: ±8KV Class 4 Air discharge: ±15KV Class 4 Fast Transient/ Burst Immunity (EFT) Power supply terminal: ±2KV Class 3 Signal terminal: ±2KV Class 3 Surge(Impact) Immunity Power supply terminal: +2KV Class 3 Signal terminal: +1KV Class Electrical Parameters Unless otherwise specified, the parameter values in the table are tested at Tamb=25. 3

8 Table 1-1 Electrical Parameters Parameter Name Symbol Rated Value Unit Supply voltage VCC +9~24V V Power consumption PM 3350 mw Operating temperature Tamb -40 ~85 Storage temperature Tstg -40 ~ Mechanical Dimensions For the mechanical dimensions of CANET-E(2E)-U, please refer to Figure 1-2. The figure shows the length, width, height and part of mechanical structure of device. Figure 1-2: CANET-E(2E)-U mechanical dimensions 4

9 2ChapterChapter 2: Hardware Interface Description This chapter introduces the hardware interfaces of CANET-E(2E)-U. 2.1 Appearance 2.2 Power Interface Figure 2-1: CANET-E-U and CANET-2E-U appearance CANET-E(2E)-U uses the 9~24V DC power supply which can be acquired easily in the industrial field. 9~24V is the positive input of the power supply. GND is the negative input of the power supply. If the direction is wrong, then the power supply cannot be provided. The interface is shown in Table 2-2. The power socket of CANET-E(2E)-U also has EARTH terminal, which is used to connect with the ground for electrostatic discharge or surge release. Figure 2-2: Signal description of power supply interface 5

10 2.3 Ethernet Interface The appearance of CANET-E(2E)-U Ethernet interface (RJ45) is shown in Figure 2-3. It has two indicators, including green light and yellow light. LINK indicator is green, which indicates whether the Ethernet is connected or not. The data transmission light is yellow. If the Ethernet has data transmission, the yellow light flashes. The pin definition is shown in Table 2-1. Figure 2-3: RJ45 interface appearance Table 2-1: RJ45 pin definition Pin No. Pin Definition 1 Tx+ 2 Tx- 3 Rx+ 6 Rx- 2.4 Restore Factory Settings and Reset Button As shown in Figure 2-4, Reset is used to reset the device manually. Press 1 second to reset the device; DEF is used to restore the factory settings. Press and hold for 5-10 seconds until the system SYS extinguish, and then the device restores factory settings automatically. Figure 2-4: Reset and restore factory settings Note: After the factory settings are restored, the current configuration is lost. Please be careful. 6

11 2.5 CAN Port CANET-E-U has one CAN port. CANET-2E-U has two CAN ports. Its appearance is shown in Figure 2-5, and its pin definition is shown in Table 2-2. Figure 2-5: CANET-E-U and CANET-2E-U CAN port appearance Table 2-2: pin definition of CANET-E(2E)-U CAN port (on the front, from left to right) CAN port Signal Introduction CAN1 (only for CANET-2E-U) CAN0 CAN1-L CAN1-G CAN1-H CAN1-R CAN0-L CAN0-G CAN0-H CAN0-R It is the CANL signal terminal of CAN1 It is the terminal that CAN1 channel connected with the shielding layer It is the CANH terminal of CAN1 and is connected with the signal terminal resistance Another connecting terminal of the CAN1 terminal resistance (connected with CAN1-L internally) It is the CANL signal terminal of CAN0 It is the terminal that CAN0 channel connected with the shielding layer It is the CANH terminal of CAN0 and is connected with the signal terminal resistance Another connecting terminal of the CAN0 terminal resistance (connected with CAN0-L internally) Note: As long as the CANx-H and CANx-R are short connected with the cable, you can configure the terminal resistance. 2.6 LED Indicator CANET-E(2E)-U has three indicators, including POWER, SYS and LINK, as shown in Figure

12 Figure 2-6: CANET-E-U and CANET-2E-U LED indicators The description of these three LED indicators on the left is shown in Table 2-3. Table 2-3: Description of LED indicators LED POWER SYS LAN Description Power indicator. It lights after power-on System running indicator. If the device is not ready or has fault, the indicator is red. If the device operates normally, it flashes in green LAN operation indicator. It lights when Ethernet is connected, and it flashes when data transmitting or receiving. 1/2-channel CAN port of the CANET-E(2E)-U has one LED indicator. The description is shown in Table 2-4. Table 2-4: Description of CAN port LED indicators LED CAN0~CAN1 Description The indicator lights or flashes: data transmission or reception on CAN port. Green light extinguishes: no data transmission or reception on CAN port. Red light lights: Error transmission on CAN port Red light extinguishes: No Error transmission on CAN port or Error has been restored. 8

13 3ChapterChapter 3: Usage Instruction In this chapter, we will introduce the basic usage of CANET-E(2E)-U and the related hardware and software installation settings. You can quickly grasp the usage of it and have an intuitive understanding of the network and CAN device communication through our introduction. Before using the CANET-E(2E)-U device, we need to know the network parameters such as device IP address. CANET-E(2E)-U device supports two ways to obtain the IP address, including Static Obtaining and Dynamic Obtaining. Static Obtaining means that the device uses IP Address, Subnet Mask and Gateway specified by users; Dynamic Obtaining means that the device uses DHCP protocol to obtain the information such as IP address, subnet mask and gateway from the DHCP server on the network. 3.1 Device IP Factory Setting The default IP address of CANET-E(2E)-U series Ethernet CAN-bus data conversion device is: Obtain Device IP by User When users forget the device IP address or the device uses DHCP protocol to obtain the IP address automatically, they can obtain the current device IP through ZNetCom software. ZNetCom software is the configuration software of CANET-E(2E)-U device running on the Windows platform. No matter what the current IP of the CANET-E(2E)-U device is, you can obtain the current IP of the CANET-E(2E)-U device through ZNetCom software and configure the IP. Use ZnetCom software to obtain the CANET-E(2E)-U device IP as follows: 1. Connect the hardware to power up the device with 9~24V DC power supply, and use a crossover cable to connect the LAN port of the device to the PC port. 2. Install ZNetCom (versions above 2.81). Figure 5-1 shows the installation method of the ZNetCom software. 3. Double-click to run ZNetCom software (If the system is WIN7 or above, you should right-click to run as an administrator), and the interface is shown in Figure

14 Figure 3-1: ZNetCom software running interface 4. Close the firewall and anti-virus software of the PC. 5. Single click, the interface is shown in Figure 3-2, and you can obtain the device IP address. Figure 3-2: ZNetCom software searches the device 3.3 PC and Device Network Segment Detection Before using PC to communicate with the CANET-E(2E)-U device, users should ensure that there is an Ethernet card in the user's PC. Moreover, PC and the CANET-E(2E)-U device must be in the same network segment. 10

15 The CANET device is set with a default IP address ( ) and network mask ( ) in the factory. Users can check whether the device and the user's PC are in the same network segment according to the process shown in Figure 3-3. If they are in the same segment, then congratulations, and the following information of network setting on PC is no need to read. If not, then the information of this network setting is very important for you. Figure 3-3: The checking process of whether CANET-E(2E)-U device IP and PC are in the same network segment The information on how to make the user s PC and CANET-E(2E)-U device in the same network segment is as follows. If users use the operating system of Windows2000/XP, then there are two ways, one is to add local IP address and the other is to modify local IP address. 1. Add local IP address Assuming that the IP address of the user s PC is , and the default IP address of CANET-E(2E)-U device is After login the operating system, users right-click Network Neighborhood to select Properties. At this time, the network connection window is opened, then select Local Area Connection icon (Note, this connection is to connect the CANET-E(2E)-U device network. If users use multiple network interface cards, there may be several local connections, please pay attention to select), then right-click Local Area Connection to select Properties. The pop-up window is shown in Figure

16 Figure 3-4: Network property Select the Internet Protocol (TCP/IP) item of This connection uses the following items (D): on the General page. Click Properties to pop up the window, as shown in Figure 3-5. Figure 3-5: TCP/IP properties Click the Advanced (Y) button on the window, and then the pop-up window is shown in Figure

17 Figure 3-6: TCP/IP settings Click Add button of the IP addresses (R) on the IP settings page, and then the pop-up window is shown in Figure 3-7. Figure 3-7: Add IP address Fill in the content according to the figure, and then press OK. Now, you can communicate with the CANET-E(2E)-U device. 2. Modify local IP address After login the operating system, users click Start Setting Control Panel on the taskbar, then double-click Network and Dial-up Connection (or Network Connection ) icon, and then click Local Area Connection of the network interface card that connected to the CANET-E(2E)-U device. Right click to select Properties, and then select Internet protocol (TCP/IP) on the pop-up General page to check its Properties, as shown in Figure 3-8. Please select Use the following IP address according to the figure, then fill in the IP address of , Subnet mask of and Default gateway of (The section of DNS can be ignored). Click OK on this page as well as on the Local Area Connection Properties 13

18 page, and wait for system configuration completion. Figure 3-8: TCP/IP properties Now, you can communicate with the CANET-E(2E)-U device. 3.4 Communication between CANET-E(2E)-U and USBCAN Interface Card We need a device with CAN port to help demonstrate how the CANET-E(2E)-U device implements bidirectional transparent conversion of CAN network data and Ethernet data. Here we use the USBCAN-2E-U interface card, which is very convenient to use, and its related information can be found on the website First, connect the CANET-E(2E)-U device to PC with the cable, and connect the CANET-E(2E)-U device to USBCAN-2E-U interface card with the twisted pair (CANH is connected; CANL is connected; pay attention to configure 120 ohm terminal resistance). And then use the USB cable to connect the USBCAN-2E-U interface card to the PC, and finally power for the USBCAN-2E-U interface card and CANET-E(2E)-U device. Then open the CANtest software on the PC (as shown in Figure 3-9). CANtest test software can be found in the supported CD (need to install). 14

19 Figure 3-9: Software used in test communication After starting CANtest, you need to select the appropriate device type. First, we select CANET-TCP, as shown in Figure Then select the open device of the device operation in the main menu, and the related parameter setting interface of the device will be pop-up. Since the default IP address of the device is and the working port is 4001, the device IP address and device port number are filled in and 4001, as shown in Figure Figure 3-10: Select device type 15

20 Figure 3-11: Set device parameters Click OK and start CAN button or click OK, click Start in data operation interface (as shown in Figure 3-12). If the device is connected properly, there will be no prompt; if it is not connected properly, the error message will be displayed. Figure 3-12: Start CANET-E(2E)-U Click Select Device of the CANtest software again, this time we select USBCAN-2E-U, as shown in Figure Then select the Open Device of the Device Operation in the main menu, the related parameters setting interface is popped up, as shown in Figure

21 Figure 3-13: Select device type Figure 3-14: Parameter settings As the factory default baud rate of CAN port is 1000Kbps, so the baud rate should be set to 1000Kbps in the interface, and the other parameters do not need to modify. Click OK and back to the main interface, and then click the Start CAN button (as shown in Figure 3-15) to start the corresponding CAN port in the main interface. Now all the preparatory work is completed, you can achieve the communication between CANET-E(2E)-U and USBCAN-2E-U. 17

22 Figure 3-15: Start USBCAN card Click the Send button in any CANtest software tab interface. You can receive the data you just sent in another CANtest software tab, as shown in Figure

23 Figure 3-16: Bidirectional communication demonstration After you have an intuitive knowledge of the CANET-E(2E)-U device, you can continue to learn the following content, which will help you master how to configure the CANET-E(2E)-U device and configure it as your CANET-E(2E)-U device. 19

24 4ChapterChapter 4: Operating Mode The CANET-E(2E)-U device has three operating modes, which will be described in the following sections. 4.1 TCP Server mode Figure 4-1: Communication in the TCP Server mode In the TCP Server mode, the CANET-E(2E)-U never connects to other device actively, but always waits for the connection from TCP Clients. The bi-directional communication is performed as soon as the TCP connection between the CANET-4E-U device and a client is established. The communication is established as shown in Figure 4-1. Notes: A client connects to the CANET-E(2E)-U device through the corresponding operating port (see Table 5-1) in this mode. 4.2 TCP Client mode Figure 4-2: Communication in the TCP Client mode 20

25 In the TCP Client mode, the CANET-E(2E)-U device connects to the preset TCP server actively. If the connection is not established successfully, the client continues to try based on the set connection condition. The bi-directional communication is performed as soon as the TCP connection between the CANET-4E-U device and TCP server is established. The communication is established as shown in Figure 4-2. Notes: In this mode, TCP server IP is determined by destination IP (see Table 5-1) ; TCP server port is determined by destination port (see Table 5.1). There are totally 6 groups of valid destination port and destination IP, and the device will connect to the TCP server specified by these 6 groups of parameters in turn based on predefined number of connections. 4.3 UDP mode Figure 4-3: Communication in the UDP mode The communication uses UDP protocol in the UDP mode. The UDP is a kind of communication mode independent of connections, which cannot guarantee that the data package sent to a destination host is correctly received, therefore the correctness of data should be ensure through the communication protocol of high layer in the situation with strict reliability requirement; However, since the UDP mode is a relatively simple communication mode, it does not increase the excess additional traffic, and provide a higher communication speed than the TCP mode to guarantee the real time of data. Actually, the errors do not often occur in this mode in the situation with simple network and low network communication load. Furthermore, in the UDP mode, there are no servers and clients, and all devices are equal. The communication process is shown in Figure 4-3. Notes: In this mode, the CANET-E(2E)-U device uses the operating port (see Table 5-1) to receive the UDP data package sent by the user device; The data received from the CAN port of CANET-E(2E)-U device will be sent to 6 groups of valid destination port (see Table 5-1) of destination IP (see Table 5-1). 21

26 5ChapterChapter 5: ZNetCom Software Configuration The ZNetCom software based on WINDOWS is the configuration software specialized for CANET-E(2E)-U devices. Users can get the IP of CANET-E(2E)-U device, view and modify device configuration parameters, update device firmware, etc. through this software. 5.1 Install the configuration software Place the product CD into CD-ROM and open it, then double click the ZNetCom2.81_Setup.exe file shown in Figure 5-1 to start installation. Figure 5-1: Installation file The welcome interface shown in Figure 5-2 will pop up, and click Next to continue. Figure 5-2: Welcome interface The interface shown in Figure 5-3 appears. You can click the Browse button to change the installation directory (the default directory is C:\Program Files\ZNetCom Utility). 22

27 Figure 5-3: Select installation directory Click the Install button to copy the file into the installation directory, and the prompt interface shown in Figure 5-4 will pop up after the installation is completed, then click the Finish button to exit installation. Figure 5-4: Installation completed Now the configuration software is installed successfully. You are required to check whether the CANET-E(2E)-U device and the network adapter of PC are connected via network cable. 5.2 Obtain device configuration information Run the ZNetCom software and the interface shown in Figure 5-5 will appears. 23

28 Figure 5-5: ZNetCom operating interface When click the Search for device button in the toolbar, the ZNetCom software begins to search for the CANET-E(2E)-U device connected to the PC, as shown in Figure 5-6. The searched device as well as its corresponding MAC address and IP address are displayed in the pop-up window. This window will be closed automatically after 10s, and users also can click the Stop button to close it. Figure 5-6: Search for devices Then, the searched devices are listed in the device list of ZNetCom software, as shown in Figure

29 Device list Figure 5-7: Obtain configuration properties of a CANET-E(2E)-U device To obtain the information of a device, you can double click it in the device list, or click the Obtain device information button or the Refresh button in the property bar after select it in the device list. Then the dialog shown in Figure 5-8 will appears. Figure 5-8: Obtain configuration information After above dialog disappears, you can see the configuration information of CANET-E(2E)-U device in the property bar, as shown in Figure

30 Figure 5-9: Configuration information of CANET-E(2E)-U device 5.3 Modify device configuration information The device configuration password (the default value is 88888) is required when use the ZNetCom software to modify the configuration information for a CANET-E(2E)-U device. After modifying device configuration information in the property bar based on actual situation, users can fill in the device configuration password in the Current Password field and click the Submit modification button to complete this modification. 26

31 Figure 5-10: Modify the configuration information for a CANET-E(2E)-U device 5.4 Configuration parameter description The default configuration and description of the CANET-E(2E)-U device are listed in Table 5-1. Table 5-1: Explanation for items in the property fields Type Name Default Value Description Device type CANET-E-U or CANET-2E-U This item cannot be modified. Dependent on Basic information Device firmware version the ex-factory date of device Display the latest firmware version. The value can be modified, and its maximum length is Device name CANET-2E 9 bits. It can be composed of a~z, A~Z, 0~9 and other characters. This value is used to identify different CANET-E(2E)-U device in same network. 27

32 Type Name Default Value Description The correct password should be filled in before modify Current password other items. The maximum length of password is 9 bits. It can be composed of a~z, A~Z, 0~9 and other Whether to change the password No characters. Only if the yes is selected, the New password and Confirm password can be filled in. This item cannot be filled in when the Whether to Password change the password item is No. The new operation New password None password is filled into this item and the maximum length of it is 9 bits. For the content of password, please refer to above description about current password. This item cannot be filled in when the Whether to Confirm new password None change the password item is No. The new password is filled into this item and its content should be same as the new password item. The value of X.X.X.0 or X.X.X.255 should not be filled into this item. The IP address is a specified network Device IP address of network device (such as, PC, CANET-E(2E)-U, etc). It is unique in the same network. The subnet mask is very important for network. In the same network, when the AND operation is performed Device subnet mask for an IP address and subnet mask, the results are IP address information Device gateway IP DNS equal. Therefore, the IP address and subnet mask should be set correctly. The gateway IP or router IP address is filled into this item. The server is accessed via the domain name, and the current version is invalid. Device MAC address Dependent on the module The value of this item cannot be modified. The value of X.X.X.0 or X.X.X.255 should not be filled into this item. The IP address is a specified network Device IP address of network device (such as, PC, CANET-E(2E)-U, etc). It is unique in the same network. 28

33 Type Name Default Value Description Set same CAN configuration information TCP operating mode - TCP Server It is used for quick configuration. For example, after the CAN0 is configured, when the button above CAN0 is pressed, the CAN1 use the same configuration as CAN0, so that the configuration time is reduced. Set communication mode. 1. The default mode is TCP Server. The TCP Client, UDP and other mode can also be selected. When using TCP, the connection should be established before data transmission. In the TCP Server mode, the CANET-E(2E)-U device waits for the connection from Clients; 2. In the TCP Client mode, the CANET-E(2E)-U device actively connects to destination IP and destination port; For two CANET- E(2E)-U device, one can be set as TCP Serer, and the other one is set as TCP Client, so that two device can connect with each CAN configuration other and send/receive data. 3. The UDP protocol does not need to establish any Is the port fixed? Not fixed connection; therefore it only need to receive/send data from/to the destination IP and destination port in the UDP protocol transmission. In the UDP mode, the CANET-E(2E)-U device can communicate with network devices with multiple different IP addresses through setting destination IP. It means whether the number of the CANET-E(2E)-U operating port is allowed to increase when it is re-connected in the TCP Client mode so that it can avoid the limit of connected device in Windows system. The default value is not fixed. For example, if the connection is started by the port for the first time, then the second connection is started by the port and so on. If the Fixed is selected, the connection should be started by its operating port, such as, 4001 port of CAN0. 29

34 Type Name Default Value Description It is the operating port for CAN communication and can be modified. The operating port for CAN0 is 4001 port; the operating port for CAN1 is 4002 port. Since Operating port 4001~4002 some ports are used by other network protocols, it is recommended that the number of port is not less than These operating ports transmit CAN frames in the format of 13 bytes/frame. For details about the format, please see Appendix 7.2. It is the CAN status information port and cannot be modified port for CAN0; 6002 port for CAN1. Since some ports are used by other network TCP notification port 6001~6002 protocols, users can not modify it randomly. This port is used for CAN status feedback. Once the port is connected, the warning information will be issued when the corresponding CAN interface generates error. For details, please see Appendix 7.3. The value of the item can be 0 or 100~ It is CAN configuration Overtime disconnection time (10ms) 0 meaningful only when the TCP protocol is used for communication. After the TCP connection is established, the timer begins to count down (the unit of time is 10ms) when the CAN or Ethernet interface received last data. If no data is received when the timeout expires, the TCP connection should be disconnected. The value of 0 indicates the connection is never disconnected. The value of the item can be 0 or 100~ It is meaningful only when the TCP protocol is used for communication. After the TCP connection is established, a heartbeat package (it is not Heartbeat time (10ms) 200 application data and is not forwarded to the operating port) is sent when the heartbeat time expires. If there is no response after 3 consecutive heartbeat packages has been sent, the CANET-E(2E)-U disconnects this connection. The value of 0 indicates no heartbeat package is sent. CAN Baud rate (HEX) 1000K The baud rate is selected from 5K~1000K (total 15 options). Users can also fill in any baud rate. 30

35 Type Name Default Value Description Normal mode: the CAN port responds to received CAN frames. Listening only: the CAN port operates in the listening CAN operating mode Number of sub-package frame Normal 50 mode and does not generate any response. Self-test: the CAN port operates in the self-transmitting and self-receiving mode. It is used to test whether the CAN port itself operates properly and whether itself is damaged. The value of the item can be 1~50. When the CAN port consecutively receives data ( the interval is less than the sub-package interval), if the number of received CAN frames is equal to the number of sub-package frame, the received data is encapsulated as an Ethernet package and then sent to the network port. The number of sub-package frame means the maximum number of frames in a data package. If the number of received CAN frames is less than the number of sub-package frame, but the frame interval is greater than the sub-package interval, then the CAN configuration received data will also be encapsulated as an Ethernet package to send. If the number of sub-package frame is set to 1, it Sub-package interval (ms) Clear CANBuffer 1 Never means the data is not encapsulated, and each CAN frame is sent as an Ethernet package. The real time performance is best and the network load is the maximum in this situation. When the number of sub-package frame is set to 50, the channel traffic is largest and the network load is minimal. The value of the item can be 1~254. When the CAN port does not receive new data frame within the sub-package interval (in the unit of ms), and the number of received CAN frames is less than the number of sub-package frame, then all data frames that were previously received and have not been sent are encapsulated into an Ethernet packet and sent to the network port. This item is only valid in the TCP mode. It determines whether to clear the data in the CAN buffer after the connection is established. If not, the data in the buffer is sent out after establish the connection. If the buffer is cleared in the case of TCP connection, the saved CAN buffer is cleared when the TCP connection is established. 31

36 Type Name Default Value Description CAN Interface Acceptance Filter Enable. If enabled, CAN_AF Standard frame upper limit Standard frame lower limit Extended frame upper limit Extended frame lower limit Disable 7FF(HEX) 000(HEX) 1FFFFFFF (HEX) (HEX) the ID upper/lower limit of necessary acceptance standard frame and extended frame should be filled in the following 4 items. After CAN_AF is enabled, the upper limit and lower limit of acceptance standard frame ID set by users determine the ID range of standard frame to be received. After CAN_AF is enabled, the upper limit and lower limit of acceptance extended frame ID set by users determine the ID range of extended frame to be received. CAN interface transmit buffer size. The default value is frames. Users can set the size of this buffer to achieve the balance between real time CAN configuration performance and large capacity buffer for CAN interface. CAN transmit buffer size (10 frames) CAN transmit buffer strategy New data is discarded when the buffer is full. Since the Ethernet speed is much higher than the CAN transmission speed, if the amount of data received via Ethernet is too large, these data need to be buffered before they are sent via CAN so that there is no frame loss, however, such a large buffer may lead to real time deterioration, i.e., the data currently sent via Ethernet have to be sent out via CAN after a certain time. In this case, either users control the transmission speed of Ethernet to make it match the transmission speed of CAN; or reduce this buffer and lost appropriate frames to guarantee real time performance. The strategy when the CAN transmit buffer is full is: New data or old data is discarded when the transmit buffer is full. 32

37 Type Name Default Value Description When the CANET-E(2E)-U operates in the TCP Server mode, each CAN port has maximum 100 TCP connections by default without the need of configuration. When the CANET-E(2E)-U operates in the TCP Client Number of TCP connections (Number of destination IP segments) 1 mode, this item is used to define the number of connected IP segments that can be established when the CAN port performs communication. The maximum value is 6. When the CANET-E(2E)-U operates in the UDP mode, this item is used to define the number of IP segments in which the network device communicates with the corresponding CAN port. The maximum value is 6. The value of the item can be 1~ It is only valid in the TCP Client and UDP mode. This item is used to define the port of the network device that CAN configuration Destination port Subnet mask Start address communicates with the CANET-E(2E)-U device. Only the data sent via this port can be received by the CANET-E(2E)-U device, meanwhile, the data received via the CAN port of CANET-E(2E)-U device also is sent to this port via Ethernet. By default, the destination port 1 for CAN0 is 8001; the destination port 1 for CAN1 is The subnet mask can be used to determine the network host number and whether the host number is legal. For example, network segment of x, if the subnet mask is , then the IP address of is the broadcast address, which cannot be used to indicate the host, but if the subnet mask is , is a legal device address. It is only valid in the TCP Client and UDP mode. This item is used to define the destination IP address, i.e., the IP address of the network device that communicates with the CANET-E(2E)-U device (it also can be the start IP of IP address segment). 33

38 Type Name Default Value Description It is only valid in the TCP Client and UDP mode. This item is used to define the end IP of IP address segment. If there is only 1 destination address, the end address is equal to the start address. Note: If an IP address is filled in this item to enable End address multiple network devices to communicate with the CAN configuration Destination port Subnet mask Start address End address CANET-E(2E)-U device simultaneously, the first three bytes of the IP address segment must meet the limit of subnet mask 1, and the fourth byte of the end address should be greater than or equal to the fourth byte of the start IP address. This item can be filled in 1~ The function of them is same as the destination port 1. Users should set the number of TCP connections before enable them. They are used for mask. Users should set the number of TCP connections before enable them. The function of them is same as the start address 1. Users should set the number of TCP connections before enable them. The function of them is same as the end address 1. Users should set the number of TCP connections before enable them. The default value of each CAN1 parameter is exactly the same, except for operating port, destination port, destination IP. The meaning of these parameters is the same as the corresponding CAN0 parameter, so they are not listed in the above table. 5.5 Save and restore settings To facilitate users to modify the configuration information of the CANET-E(2E)-U device in batches, the ZNetCom software provides configuration information import/export function. The Import/Export function button is placed on the property bar, as shown in Figure Figure 5-11: Import/export device configuration information Save settings Click the Export button, and then select the directory and input the file name in the 34

39 pop-up Save as dialog box (as shown in Figure 5-12). The device configuration information is saved in XML format after click the Save button. Figure 5-12: Save device configuration information Restore settings Click the Import button, and select saved device configuration information file in the pop-up Open dialog box (as shown in Figure 5-13). After click the Open button, the ZNetCom software imports the configuration saved in the file. Figure 5-13: Open device configuration information 5.6 Upgrade the firmware The CANET-E(2E)-U series device support local firmware upgrade. When the ZNetCom software is used to upgrade the CANET-E(2E)-U device, the PC and CANET-E(2E)-U device should be in the same network segment. The firmware 35

40 upgrade steps are as follows: 1. Select the device to be upgrade in the device list of ZNetCom software and right-click it, and then the menu shown in Figure 5-14 appears. Figure 5-14: Firmware upgrade menu 2. Select the Upgrade firmware option in the menu and the firmware upgrade interface as shown in Figure 5-15 appears. Input the password (the default value is 88888) and select the upgrade file in the interface, and then click the Open button. Figure 5-15: Firmware upgrade interface 36

41 3. Click the Upgrade firmware button, and the device begins to upgrade firmware, as shown in Figure Figure 5-16: In progress of firmware upgrade 4. The firmware upgrade will be completed in one minute (as shown in Figure 5-17), and the system will be initialized and started after 30 seconds. Figure 5-17: Firmware upgrade completed! If the upgrade fails due to an accident (such as power down, network cable disconnected), users only need to power up the device and search for upgrade again. 37

42 6ChapterChapter 6: Appendix 6.1 Data conversion format of CANET-E(2E)-U operating port 38

43 When users send UDP frames through PC, the number of CAN frames included in each UDP shall not exceed 50 frames! It is recommended that the transmission speed of UDP frame should not exceed 400 packets per second. In addition, if users send 400 packets of UDP frame in a second and each UDP frame includes 50 CAN frames, CAN frames will be sent in a second. However, it is not impossible for CAN to do that even if the Baud rate is 1000Kbps. Therefore, users are recommended not to send more than 400 UDP frames per second. When converting to CAN frames, the speed should not exceed 4000 UDP frames per second. 6.2 Data conversion format of the TCP notification port for the CAN status of CANET-E(2E)-U CMD Value Meaning of the status Time Error Notification (CANET-E(2E)-U device) Count Value Cycle (second) 00h The transmit buffer of Ethernet will overflow. 0 2s 01h The transmit buffer of Ethernet has overflowed s 02h The receive buffer of Ethernet will overflow. 0 2s 03h The receive buffer of Ethernet has overflowed s 39

44 CMD Value Meaning of the status Time Error Notification (CANET device) Count Value Cycle (second) 04h CAN controller transmission error alarm (transmission error count > 96) Frequency 2s 05h CAN controller reception error alarm (reception error count > 96) Frequency 2s 06h CAN controller transmission error passive (transmission error count > 127) Frequency 2s 07h CAN controller reception error passive (reception error count > 127) Frequency 2s 08h CAN controller reception overflow error (overload) Frequency 2s 09h CAN controller bus off Frequency 2s 0Ah CAN controller arbitration lost (bus jam) Frequency 2s 0Bh CAN controller bus error (whenever there is error) Frequency 2s 0Ch Other errors Frequency 2s FEH The error is Error clearing command (the host send this 0x12,0x34, cleared when this command to the corresponding port of CANET) 0x56,0x78 command is sent. 40

45 7ChapterChapter 7: Rights & Statements The CANET-E(2E)-U and related materials are owned by Guangzhou ZHIYUAN Electronics Co., Ltd., and its property rights are absolutely protected by national laws. Other companies, units, agents and individuals shall not use and copy the information illegally without the authorization of ZHIYUAN Electronics; otherwise they will be severely punished by the related national law. This document provides information about electronic products from ZHIYUAN Electronics, and does not grant any intellectual property rights and any intellectual property license by express or implied, or by forbidden speech or otherwise. In addition to the liability in the terms and conditions of sale of its products, ZHIYUAN Electronics shall not be liable for any other liability. In addition, for the sale and/or use of its products, ZHIYUAN Electronics shall not make any express or implied warranties, including material-specific applicability, merchantability or tort liability for any patent, copyright or other intellectual property. The products from ZHIYUAN Electronics are not designed for medical, life-saving or life and other purposes. ZHIYUAN Electronics may make changes to the product specifications and product descriptions at any time without notice. The CANET-E(2E)-U may contain some design defects or errors, which would be collected in the errata. This may result in the deviation between practical product specifications and published specifications. Users can ask us for the latest errata. Before ordering product, please contact your local sales office or distributors of ZHIYUAN Electronics to obtain the latest product specifications. The document referred in this document and other electronic documents are available by visiting For future development, ZHIYUAN Electronics reserves the right to modify this document at any time without prior notice. 41

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