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Modbus/RTU-CAN converter

  • Modbus/RTU-CAN converter
  • Modbus/RTU-CAN converter
  • Modbus/RTU-CAN converter
  • Modbus/RTU-CAN converter
  • Modbus/RTU-CAN converter
  • Modbus/RTU-CAN converter
  • Modbus/RTU-CAN converter
  • Modbus/RTU-CAN converter
  • Modbus/RTU-CAN converter
Brand:
GUANGCHENG TECHNOLOGY CO.,LTD.
Model:
GCAN-204
Application:

The serial communication device is connected to CAN-bus;
PLC connection CAN-bus;
Modbus RTU and CAN communication;
CAN-bus and serial bus gateway;
Monitor industrial site network data;
Beginners learn CAN;
CAN industrial automation control system;
Collect low-speed CAN network data.
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  • 1 Overview

    GCAN-204 converter has one CAN-Bus interface, one serial interface. The GCAN-204 integrates the Modbus RTU protocol. With the GCAN-204 , user can use the serial bus connect to other equipment (with Modbus RTU protocol)  access the CAN-Bus communication interface.
    GCAN-204 has integrated isolation protection module. Using DIN railway fixed, it can be easier to integrate into the control cabinet.

    2 Properties at a glance

    Modbus slave support function code: 03H, 04H, 06H, 16H
     Serial baud rate: 600bps ~ 115200bps
     CAN-Bus supports CAN2.0A and CAN2.0B frame format, conform to ISO/DIS 11898 standards
     CAN baud rates: 5Kbps ~ 1Mbps
     CAN-Bus isolation module insulation voltage: DC 1500V
     Power supply: 9~30V (20mA,24V DC)
     Interface using terminal blocks
     Installation method: DIN rail
     Working temperature range from -40 to 85 °C
     Size: (L)113mm * (W)100mm * (H)21mm

    3. Examples

    The user can use the included serial debugging assistant to send Modbus instruction debugging.
    Please note: choose "hexadecimal display" and "hexadecimal send" when using the serial debugging assistant.

    3.1 Receive CAN data

    For example, configure the Modbus slave address: 1, Modbus register first address: 0x01, CAN: standard frame, frame ID: 0x181, CAN frame data: 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08.
    User Modbus master sends request frame:
    01 03 00 01 00 04 15 C9
    GCAN-204 response frame:
    01 03 08 02 01 04 03 06 05 08 07 17 C1
    Please note that the CRC is calculated by the CRC16 checksum calculator. (With disk)
    At this point, the GCAN-204 module has received a data frame with a frame ID of 0x181 from the CAN terminal of other equipment.

    3.2 Transmit CAN data

    For example, Modbus slave address: 1, Modbus register first address: 0x101 (decimal: 257), function code: 16 (10H), CAN: standard frame, frame ID: 0x201, CAN frame data: 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08.
    User Modbus master sends request frame:
    01 10 01 01 00 04 08 02 01 04 03 06 05 08 07 CB 2E
    GCAN-204 response frame:
    01 10 01 01 00 04 91 F6
    Please note that the CRC is calculated by the CRC16 checksum calculator.
    At this point, the CAN terminal of other equipment has received a data frame with a frame ID of 0x201 from the Modbus side of the GCAN-204 module. 

    4. Technical Specifications

  • Modbus slave support function code: 03H, 04H, 06H, 16H
     Serial baud rate: 600bps ~ 115200bps
     CAN-Bus supports CAN2.0A and CAN2.0B frame format, conform to ISO/DIS 11898 standards
     CAN baud rates: 5Kbps ~ 1Mbps
     CAN-Bus isolation module insulation voltage: DC 1500V
     Power supply: 9~30V (20mA,24V DC)
     Interface using terminal blocks
     Installation method: DIN rail
     Working temperature range from -40 to 85 °C
     Size: (L)113mm * (W)100mm * (H)21mm

  • 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-204 (CAN to Modbus RTU) converter
    User Manual(Click to view)

     

    Please ask for more information to the Engineer.

    E-mail:2881884588@qq.com