HIEE-200038-R1模块备件
在模块的下侧。3.向上转动模块，直到其连接器脱离背板（2）。4.向上提起模块并使其远离背板，以松开枢轴钩（3）。PAC系统™ RX3i和RSTi EP TCP/IP以太网通信用户手册第3节GFK-2224Y 2019年8月安装和启动：以太网模块接口35 3.3以太网端口连接器以太网接口模块有两个以太网端口连接器，每个都支持使用全双工或半双工操作的10Base-T、100Base-TX和1000Base-T操作。这些8针RJ45连接器用于将以太网接口连接到集线器、中继器、交换机或其他以太网设备。3.3.1嵌入式交换机两个以太网端口连接器由模块中的嵌入式网络交换机控制。该模块只有一个网络接口（一个以太网地址和一个IP地址）。PACSystems以太网接口以太网处理器以太网MAC 10/100/1000网络交换机端口1A端口1B图11：嵌入式以太网交换机示意图4 ETM001 Jx仅支持100 Mbps的速度。PAC系统™ RX3i和RSTi EP TCP/IP以太网通信用户手册第3节GFK-2224Y 2019年8月安装和启动：以太网模块接口36对于简单的安装，嵌入式交换机允许在无需额外组件的情况下连接设备。操作员界面个人计算机PLC PLC图12：系统图：使用嵌入式交换机的以太网路由当将PLC置于菊花链配置中而无需额外组件时，请格外小心。以太网接口处的断电或重置可能会导致与菊花链中该以太网接口下游的任何设备失去通信。重新启动以太网接口（例如，通过以太网重启/重置按钮）会中断菊花链通信。对于连接到链路另一端的设备，每个交换机端口默认为正确的链路速度和双工模式。每个端口独立运行；两个不同速度和/或双工模式的设备可以连接到两个端口。默认情况下。每个端口将自动检测连接的电缆，并将与直通或交叉电缆正常工作。警告：以太网接口上的两个以太网端口不得直接或间接连接到同一设备。基于双绞线的以太网网络中的连接必须形成一棵树，而不是一个环。不遵守此警告可能会导致数据包重复并导致网络过载。警告：IEEE 802.3标准强烈禁止手动配置端口的双工模式（使用高级用户参数可能）。在使用高级用户参数（AUP）为以太网接口端口手动配置双工模式之前，请确保您了解链路伙伴的特性并了解选择的后果。在IC698以太网接口端口上设置速度和双工AUP将禁用端口的自动协商功能。如果其链路伙伴没有类似地手动配置，这可能会导致链路伙伴结束错误的双工模式。根据IEEE标准：“将不兼容的DTE/MAU组合（如全双工模式DTE连接到半双工模式MAU，或将全双工站（DTE或MAU）连接到中继器或其他半双工网络）可能会导致严重的网络性能降级、冲突增加、后期冲突、CRC错误和未检测到的数据损坏。”PACSystems™ RX3i和RSTi EP TCP/IP以太网通信用户手册第3节GFK-2224Y 2019年8月安装和启动：以太网模块接口37注意：如果使用高级用户参数文件强制以太网接口端口的速度和双工模式，则该端口将不再执行自动电缆检测。
on underside of module. 3. Pivot the module upward until its connector is out of the backplane (2). 4. Lift the module up and away from the backplane to disengage the pivot hook (3). PACSystems™ RX3i and RSTi-EP TCP/IP Ethernet Communications User Manual Section 3 GFK-2224Y August 2019 Installation and Start-up: Ethernet Module Interfaces 35 3.3 Ethernet Port Connectors The Ethernet interface module has two Ethernet port connectors, each of which supports both 10Base-T, 100Base-TX and 1000Base-T operation using either full-duplex or halfduplex operation. These 8-pin RJ45 connectors are used to connect the Ethernet interface to a hub, repeater, switch, or other Ethernet device. 3.3.1 Embedded Switch The two Ethernet port connectors are controlled by an embedded network switch in the module. The module has only one interface to the network (one Ethernet address and one IP address). PACSystems Ethernet Interface Ethernet Processor Ethernet MAC 10/100/1000 Network Switch Port 1A Port 1B Figure 11: Diagram of Embedded Ethernet Switch4 4 ETM001-Jx is only capable of 100 Mbps speeds. PACSystems™ RX3i and RSTi-EP TCP/IP Ethernet Communications User Manual Section 3 GFK-2224Y August 2019 Installation and Start-up: Ethernet Module Interfaces 36 For simple installations, the embedded switch allows devices to be connected without additional components. Operator Interface Personal Computer PLC PLC Figure 12: System Diagram: Ethernet Routing Using Embedded Switch Use extra care when placing PLCs in a daisy-chain configuration without additional components. Power loss or reset at an Ethernet interface can cause loss of communication to any devices downstream from that Ethernet interface in the daisy chain. Restarting the Ethernet interface (via the Ethernet Restart/RESET pushbutton, for example) disrupts daisy chain communication. Each switch port defaults to the correct link speed and duplex mode for the device connected to the other end of the link. Each port operates independently; devices at two different speeds and/or duplex modes may be attached to the two ports. By default. each port will automatically detect the attached cable and will work properly with either straight-through or crossover cables. CAUTION The two Ethernet ports on the Ethernet interface must not be connected, directly or indirectly, to the same device. The connections in an Ethernet network based on twisted pair cabling must form a tree and not a ring. Failure to follow this caution may cause a duplication of packets and cause a network overload. CAUTION The IEEE 802.3 standard strongly discourages the manual configuration of duplex mode for a port (as would be possible using Advanced User Parameters). Before manually configuring duplex mode for an Ethernet interface port using advanced user parameters (AUP), be sure that you know the characteristics of the link partner and are aware of the consequences of your selection. Setting both the speed and duplex AUPs on an IC698 Ethernet interface port will disable the port’s autonegotiation function. If its link partner is not similarly manually configured, this can result in the link partner concluding an incorrect duplex mode. Per the IEEE standard: “Connecting incompatible DTE/MAU combinations such as full duplex mode DTE to a half-duplex mode MAU, or a full-duplex station (DTE or MAU) to a repeater or other half-duplex network, can lead to severe network performance degradation, increased collisions, late collisions, CRC errors, and undetected data corruption.” PACSystems™ RX3i and RSTi-EP TCP/IP Ethernet Communications User Manual Section 3 GFK-2224Y August 2019 Installation and Start-up: Ethernet Module Interfaces 37 Note: If both speed and duplex mode of an Ethernet interface port are forced using the Advanced User Parameters file, that port will no longer perform automatic cable detection.
