Modbus/TCP-CAN converter
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1.Overview
The GCAN-205 is a CAN-Bus and ethernet converter. GCAN-205 can convert the data.
between CAN-Bus and Modbus TCP. With this converter, equipment that used Modbus TCP protocol can connect to CAN-Bus without changing the hardware structure, this makes multi-Bus interconnection very flexible, and extends the application scope of CAN-Bus.
2.Properties at a glance
2.1Hardware
High-speed 32-bit processor
Embedded hardware watchdog timer
Power supply voltage: DC 24V, maximum current: 40mA
Electrostatic discharge immunity level: contact discharge ± 2KV, air discharge ±15KV
Electrical fast transient burst immunity level: ± 1KV
Surge immunity level: ± 1KV
Operating temperature range: -40 ℃ ~ +85 ℃
Operating humidity range: 5% to 95% RH no condensation
Dimensions：113mm * 100mm * 21mm
Standard DIN rail mounting, designed for industrial design
2.2CAN
Integrated 1 CAN-Bus interface with terminal
CAN-Bus signals include: CAN_H, CAN_L, CAN_GND
CAN-Bus supports CAN2.0A and CAN2.0B frame format, conform to ISO/DIS 11898 standards
CAN-Bus baud rates range from 5Kbps to 1Mbps
CAN-Bus isolation converter insulation voltage: DC 1500V
2.3Ethernet
RJ45, support 10 / 100M adaptive
Modbus slave support function code: 03H, 04H, 06H, 16H
Support static or dynamic IP access
Support heartbeat and timeout interrupt function
The working port is fixed, the target IP and the target port can be set
After the network is disconnected, the connection resource is automatically restored and the CP connection is established reliably
Support protocols include EtherNET, ARP, IP, ICMP, UDP, DHCP, DNS, TCP
Compatible with SOCKET work (TCP Server, TCP Client, UDP, etc.), the host computer communication software follows the standard SOCKET rules
3.ExamplesUsers can send the Modbus instruction through the network debugging software in the CD. Please choose the TCP Client mode and the remote host address is 192.168.1.10:502 (IP address for the factory settings, can be modified; port number can not be modified).
Please note: check the "十六进制显示" and "十六进制发送" when using the software Network Debugging Assistant.
3.1Read the received CAN frameFor example:
Modbus slave address: 1
Modbus register first address: 0x01 (factory setting)
Function code: 03
Frame format: standard frame
Frame ID: 0x181
CAN frame data: 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08
Modbus master sends request frame:
00 00 00 00 00 06 01 03 00 01 00 04
Response frame of GCAN-205:
00 00 00 00 00 0B 01 03 08 02 01 04 03 06 05 08 07
At this point, the GCAN-205 converter receives a data frame with CAN ID of 0x181.
3.2 Write the CAN frame to be sent
For example：
Modbus slave address: 1
Modbus register first address: 0x101(decimal value is 257, factory setting)
Function code: 16(10H)
Frame format: standard frame
Frame ID: 0x201
CAN frame data: 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08
Modbus master sends request frame:
00 00 00 00 00 0F 01 10 01 01 00 04 08 02 01 04 03 06 05 08 07
Response frame of GCAN-205:
00 00 00 00 00 06 01 10 01 01 00 04
At this point, the CAN terminal of other converters receive a data frame with a CAN ID of 0x201 from the Modbus side.
4.Technical specifications
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a.Hardware
High-speed 32-bit processor
Embedded hardware watchdog timer
Power supply voltage: DC 24V, maximum current: 40mA
Electrostatic discharge immunity level: contact discharge ± 2KV, air discharge ±15KV
Electrical fast transient burst immunity level: ± 1KV
Surge immunity level: ± 1KV
Operating temperature range: -40 ℃ ~ +85 ℃
Operating humidity range: 5% to 95% RH no condensation
Dimensions：113mm * 100mm * 21mm
Standard DIN rail mounting, designed for industrial design
b.CAN
Integrated 1 CAN-Bus interface with terminal
CAN-Bus signals include: CAN_H, CAN_L, CAN_GND
CAN-Bus supports CAN2.0A and CAN2.0B frame format, conform to ISO/DIS 11898 standards
CAN-Bus baud rates range from 5Kbps to 1Mbps
CAN-Bus isolation converter insulation voltage: DC 1500V
c.Ethernet
RJ45, support 10 / 100M adaptive
Modbus slave support function code: 03H, 04H, 06H, 16H
Support static or dynamic IP access
Support heartbeat and timeout interrupt function
The working port is fixed, the target IP and the target port can be set
After the network is disconnected, the connection resource is automatically restored and the CP connection is established reliably
Support protocols include EtherNET, ARP, IP, ICMP, UDP, DHCP, DNS, TCP
Compatible with SOCKET work (TCP Server, TCP Client, UDP, etc.), the host computer communication software follows the standard SOCKET rules
If you have technical problems, please contact us by email. We will reply to you within 24 hours after receiving the mail.
After sales technical mailbox: 2881884588@qq.com-
GCAN-205 (CAN to Modbus TCP) converter
User Manual(Click to view)Please ask for more information to the Engineer.
E-mail:2881884588@qq.com
Tel: 18309815706
Website: www1.gcanbox.com
