1.功能简介 
1. Function Introduction 

1.1功能概述 
1.1 Function Overview 

GCAN-204模块是集成1路标准串口和1路标准CAN总线接口的工业级的Modbus RTU从站转CAN模块。GCAN-204模块串行总线端已经集成ModbusRTU协议，使用GCAN-204模块，用户可以将原本使用串行总线进行通讯的设备（Modbus RTU协议），在不需改变原有硬件结构的前提下使设备获得CAN总线通讯接口，从而将使用Modbus RTU协议通信的设备快速接入CAN总线，构成CAN总线网络中的节点。 
The GCAN-204 module is an industrial grade Modbus RTU slave to CAN module that integrates one standard serial port and one standard CAN bus interface. The serial bus end of the GCAN-204 module has integrated the Modbus RTU protocol. With the GCAN-204 module, users can connect devices that originally used the serial bus for communication (Modbus RTU protocol) to the CAN bus communication interface without changing the original hardware structure. This allows devices that use Modbus RTU protocol for communication to quickly connect to the CAN bus and form nodes in the CAN bus network. 

GCAN-204模块在Modbus读取数据时，会将CAN总线上接收到的数据实时装入缓存，等待Modbus指令读取。模块收到Modbus读取指令后，会将指定的CAN数据经过转换发送到Modbus总线上；当模块接收到Modbus发送数据指令时，会直接将Modbus数据处理并发到CAN总线上。 
When the GCAN-204 module reads data from Modbus, it will real-time load the data received on the CAN bus into the cache and wait for Modbus commands to read. After receiving the Modbus read command, the module will convert the specified CAN data and send it to the Modbus bus; When the module receives a Modbus data transmission command, it will directly process the Modbus data and send it to the CAN bus. 

GCAN-204模块是工业总线改造，多种总线设备互连的关键性工具，同时该模块具有体积小巧、即插即用等特点，也是现有系统集成的最佳选择。GCAN-204的各种总线接口均集成隔离保护模块，使其避免由于瞬间的过压过流而对模块造成损坏，使用DIN导轨的固定方式，使其更容易集成到各种控制柜中。 
The GCAN-204 module is a key tool for industrial bus transformation and interconnection of multiple bus devices. At the same time, this module has the characteristics of small size, plug and play, and is also the best choice for existing system integration. The various bus interfaces of GCAN-204 are integrated with isolation protection modules to prevent damage to the module caused by instantaneous overvoltage and overcurrent. The use of DIN rail fixation makes it easier to integrate into various control cabinets. 

1.2性能特点 
1.2 Performance Characteristics 

●Modbus从站支持功能码：03H、04H、06H、16H； 
Modbus slave support function codes: 03H, 04H, 06H, 16H; 
●标准串口采用2线的RS485接口； 
The standard serial port adopts a 2-wire RS485 interface; 
●串口波特率支持范围600bps~115200bps，可通过软件配置； 
The serial port baud rate supports a range of 600bps~115200bps and can be configured through software; 
●CAN-bus支持CAN2.0A和CAN2.0B帧格式，符合ISO/DIS 11898规范； 
CAN bus supports CAN2.0A and CAN2.0B frame formats and complies with the ISO/DIS 11898 specification; 
●CAN-bus通讯波特率在5Kbps~1Mbps之间； 
The CAN bus communication baud rate is between 5Kbps and 1Mbps; 
●CAN-bus接口采用电气隔离，隔离模块绝缘电压：1500V DC； 
The CAN bus interface adopts electrical isolation, and the insulation voltage of the isolation module is 1500V DC; 
●最高转换数据流量：400帧/秒（串口波特率最大测得）； 
Maximum conversion data flow rate: 400 frames per second (measured at the maximum serial port baud rate); 
●使用9~24V DC供电（推荐24V 40mA）； 
Use 9~24V DC power supply (recommended 24V 40mA); 
●RS485、CAN接口使用端子接线方式； 
RS485 and CAN interfaces use terminal wiring methods; 
●使用专用的配置软件配置工作模式及所有参数； 
Use specialized configuration software to configure the working mode and all parameters; 
●非易失行存储器保存配置参数，每次上电后自动调用最近一次的参数； 
Non volatile memory stores configuration parameters and automatically calls the latest parameters after each power on; 
●可安装到DIN卡轨上； 
● Can be installed on DIN card rails; 
●工作温度范围：-40℃~+85℃； 
Working temperature range: -40 ℃~+85 ℃; 
●静电放电抗扰度等级：接触放电±4KV，空气放电±8KV； 
Static discharge immunity level: Contact discharge ± 4KV, air discharge ± 8KV; 
●电快速瞬变脉冲群抗扰度等级：±2KV； 
● Electrical fast transient burst immunity level: ± 2KV; 
●浪涌抗扰度等级：电源接口±1KV。CAN总线接口±4KV； 
Surge immunity level: ± 1KV for power interface. ± 4KV for CAN bus interface; 

1.3典型应用 
1.3 Typical Applications 

●现有串口通信设备连接CAN总线网络； 
Existing serial communication devices are connected to the CAN bus network; 
●PLC设备连接CAN总线网络通讯； 
PLC equipment is connected to the CAN bus network for communication; 
●Modbus RTU网络和CAN网络通讯； 
Modbus RTU network and CAN network communication; 
●CAN总线串行总线之间的网关网桥； 
Gateway bridge between CAN bus and serial bus; 
●工业现场网络数据监控； 
Industrial site network data monitoring; 
●CAN教学应用远程通讯； 
● Remote communication for CAN teaching applications; 
●CAN工业自动化控制系统； 
CAN industrial automation control system; 
●低速CAN网络数据采集数据分析； 
Low speed CAN network data collection and analysis; 
●智能楼宇控制数据广播系统等CAN总线应用系统。 
Intelligent building control data broadcasting system and other CAN bus application systems.

GCAN-204设备使用手册链接 
GCAN-204 Equipment User Manual Link

www.gcgd.net/filedownload/2977758

如果您需要具体了解设备或者询价，可以加我微信或在线对话框联络。 
If you need specific information about the equipment or inquire about the price, you can add me on WeChat or contact me through the online chat.