IS200DSPXH2DBD处理器模块
例如蜂窝网络和DI/DO状态。启用从选项后，Modbus主设备可以向物联网网关（Modbus TCP/RTU从设备）请求信息或发送控制命令。物联网网关执行相应的过程并回复Modbus主设备。EW200工业蜂窝网关187 Modbus设置转到现场通信>总线和协议>Modbus选项卡。Modbus设置页面允许用户将网关设置为Modbus网关，并允许在Modbus TCP设备（连接到以太网）和Modbus RTU/ASCII设备（连接至网关的串行端口）之间进行访问。完成本节中的Modbus设置后，在端口配置屏幕中选择Modbus操作模式。为每个串行端口定义Modbus网关功能Modbus网关定义项值设置描述串行端口显示所用串行端口的名称。E、 g.SPort-0。串行端口的数量因型号而异。网关模式禁用默认设置为指定所选串行端口的Modbus网关模式。它可以是禁用、串行从或串行主。一个串行端口可以连接一个Modbus主设备，也可以连接一组Modbus从设备中的菊花链。禁用：禁用所选串行端口的Modbus网关功能。串行从设备：当连接的串行设备都是Modbus从设备时。串行为主：当连接的串行设备是Modbus主设备时。默认情况下未选中设备从属模式选中启用框以激活集成Modbus从属功能，并输入集成Modbus从属的首选ID。它可以作为Modbus从设备运行，并且可以通过SCADA管理系统中的传统Modbus功能代码访问。下表列出了支持的Modbus命令。值范围：1~247。侦听端口1。502默认设置为2。范围1到65535如果从设备连接到所选串行端口，则指定侦听端口号。如果连接了主设备，则不需要此设置。值范围：1~65535。对于具有多个串行端口的产品，请为串行端口使用不同的端口号。串行协议RTU默认设置选择所连接Modbus设备采用的串行协议。它可以是RTU或ASCII。启用显示特定Modbus串行端口是启用还是禁用。要启用或禁用Modbus串行端口，请转到现场通信>总线和协议>端口配置选项卡，并将操作模式设置为Modbus。EW200工业蜂窝网关188指定SPort-n的网关配置网关模式配置项值设置描述响应超时1000 ms默认设置发送主请求后从设备的响应超时。如果从设备在指定时间内没有响应，数据将被丢弃。这适用于串行连接的主机向远程从机发送请求，或从远程主机向串行连接的从机发送的请求。值范围：1~65535。默认情况下，超时重试次数设置为0
such as Cellular Network and DI/DO status, to remote Modbus Master via Modbus communication. With the Slave option enabled, the Modbus Master device can request the information or send control commands to the IoT Gateway, the Modbus TCP/RTU Slave device. The IoT Gateway executes corresponding processes and replies to the Modbus Master devices. EW200 Industrial Cellular Gateway 187 Modbus Setting Go to Field Communication > Bus & Protocol > Modbus tab. The Modbus setting page enables user to con the gateway to operate as a Modbus gateway, and allow access among Modbus TCP devices (which are connected to Ethernet network) and Modbus RTU/ASCII devices (which are connected to the Serial Port of the gateway). Once you have completed the Modbus settings in this section, select Modbus Operation Mode in the Port Configuration screen. Define Modbus Gateway function for each Serial Port Modbus Gateway Definition Item Value setting Description Serial Port Displays the name of the serial port used. E.g. SPort-0. The number of serial ports varies by model. Gateway Mode Disable is set by default Specify the Modbus gateway mode for the selected serial port. It can be Disable, Serial as Slave or Serial as Master. A serial port can be attached with one Modbus Master, or daisy-chained in a group of Modbus Slave devices. Disable: Disable the Modbus gateway function for the selected serial port. Serial as Slave: For when attached serial device(s) are all Modbus Slave devices. Serial as Master: When the attached serial device is a Modbus Master device. Device Slave Mode Unchecked by default Check the Enable box to activate the integrated Modbus Slave function, and enter the preferred ID for the integrated Modbus slave. It can function as a Modbus Slave device, and can be accessed with legacy Modbus Function Code from a SCADA management system. Supported Modbus commands are listed in the following Table. Value Range: 1 ~ 247. Listen Port 1. 502 is set by default 2. Range 1 to 65535 Specify the Listening Port number if Slave device(s) is/are attached to the selected serial port. This setting is unneeded if a Master device is attached. Value Range: 1 ~ 65535. Use different port numbers for the serial ports for products with multiple serial ports. Serial Protocol RTU is set by default Select the serial protocol that is adopted by the attached Modbus device(s). It can be RTU or ASCII. Enable Displays whether the specific Modbus serial port is enabled or disabled. To enable or disable Modbus serial port, go to Field Communication > Bus & Protocol > Port Configuration tab, and set the operation mode as Modbus. EW200 Industrial Cellular Gateway 188 Specify Gateway Configuration Gateway Mode Configuration for SPort-n Item Value setting Description Response Timeout 1000 ms is set by default Sets the response timeout of the slave after master request is sent. If the slave does t respond within the specified time, data will be discarded. This applies to the serially attached Master sent requests over to the remote Slave or requests send from the remote Master sent to the serially attached Slave. Value Range: 1 ~ 65535. Timeout Retries 0 is set by default If the slave does
