HIMA F8650模塊控制器
（僅限12槽和16槽通用背板）圖2:LRE001每當應用程序需要比所選通用背板所能容納的模塊更多的模塊時，或者當某些模塊必須安裝在其他位置時，必須在通用背板的最后一個插槽中安裝RX3i串行總線發射器模塊IC695LRE001（圖2）。請注意，只有12插槽和16插槽通用背板可容納LRE001。總線發送器模塊（LRE001）通過電纜連接到第一個擴展或遠程背板。后續機架使用電纜菊花鏈連接在一起（見圖5至圖7）。D連接器（右側，圖3）用于將Rx3i串行擴展背板連接到LRE001。遠程背板也可以以這種方式連接到RX3i系統。圖3:5插槽RX3i串行擴展背板IC694CHS398擴展和遠程背板的使用總結如下。有關串行總線發射器模塊和電纜的更多信息，請參閱第5節：。PACSystems*RX3i系統手冊第2節GFK-2314T 2019年9月簡介14 1.4.3可用于RX3i通用系統的背板和與RX3i兼容的擴展背板如下所示。有關RX3i背板的說明和規格，請參閱本手冊第3章。有關90-30系列擴展背板的信息，請參閱GFK-0898《90-30系列I/O模塊規格手冊》。背板RX3i 16插槽通用背板IC695CHS016 RX3i 12插槽通用背板ICM695CHS012 RX3i 7插槽通用背板IC 695CHS007 RX3i 10插槽串行擴展背板IC694CHS392 RX3i 5插槽串行擴展底板IC694CHS398系列90-30 10插槽擴展背板IC691CHS392系列90-30 5插槽擴展背板IC 693CHS398系列90-30 10插槽遠程擴展背板IC693CHS393系列90-30 5插槽遠程擴展背板IC693C HS399 PACSystems*RX3i系統手冊第2節GFK-2314T 2019年9月簡介15 1.4.4 RX3i電源系統通用和串行擴展背板電源如下所示。請參閱第4章了解RX3i電源的說明和規格。有關Series 90-30電源的信息，請參閱GEK-0898，Series 90-30 I/O Module Specifications Manual。n如果系統僅包括擴展背板，則從CPU到最后一個背板的總距離不能超過15米（50英尺）n如果系統包括任何遠程背板，則CPU到最后背板的總長度不能超過213米（700英尺）。遠程背板在更遠的距離上提供與擴展背板相同的功能。遠程背板具有額外的隔離電路，可減少背板彼此相距較遠且不共享同一接地系統時可能出現的不平衡接地條件的影響。CPU和遠程背板之間的通信可能比CPU和擴展背板之間的時間稍長。與總CPU掃描時間相比，此延遲通常很小。PACSystems*RX3i系統手冊第2節GFK-2314T 2019年9月簡介17 1.5.1帶一個擴展或遠程背板的擴展系統擴展系統可由一個僅帶一個擴充或遠程背板。此示例包括一個通用背板IC695CHS012和一個擴展背板IC694CHS392。本例中的每個背板都有一個直流電源。它們總共容納19個離散、模擬和特殊功能模塊。這些背板相距15米（50英尺）。它們通過具有內置端接電阻器的擴展電纜IC693CBL302連接。如果需要將第二個背板定位在距離通用背板15米（50英尺）以上的位置，則Series 90-30遠程背板可與定制長度電纜和外部終端電阻器一起使用。通用背板一擴展背板I/O擴展電纜IC693CBL302電纜長度：15米（50英尺）圖
(12-slot and 16-slot Universal Backplanes Only) Figure 2: LRE001 Whenever an application requires more modules than the selected Universal Backplane can accommodate, or whenever some modules must be installed in another location, an RX3i Serial Bus Transmitter Module, IC695LRE001 (Figure 2), must be installed in the last slot of the Universal Backplane. Note that only 12-slot and 16-slot Universal Backplanes accommodate the LRE001. The Bus Transmitter module (LRE001) is connected to the first Expansion or Remote backplane via a cable. Subsequent racks are daisy-chained together using cables (see Figure 5 through Figure 7). The D-connector (right side, Figure 3) is used to connect the Rx3i Serial Expansion backplane to the LRE001. Remote Backplanes may also be connected to the RX3i system in this manner. Figure 3: 5-Slot RX3i Serial Expansion Backplane IC694CHS398 Use of Expansion and Remote Backplanes is summarized on the following pages. For more information about the Serial Bus Transmitter module and cables, refer to Section 5:. PACSystems* RX3i System Manual Section 2 GFK-2314T Sept. 2019 Introduction 14 1.4.3 Backplanes Available for the RX3i System Universal and Expansion Backplanes that are compatible with RX3i systems are listed below. Refer to Chapter 3 of this manual for descriptions and specifications of the RX3i Backplanes. For information about Series 90- 30 Expansion Backplanes, refer to the Series 90-30 I/O Modules Specifications Manual, GFK-0898. Backplanes RX3i 16-Slot Universal Backplane IC695CHS016 RX3i 12-Slot Universal Backplane IC695CHS012 RX3i 7-Slot Universal Backplane IC695CHS007 RX3i 10-Slot Serial Expansion Backplane IC694CHS392 RX3i 5-Slot Serial Expansion Backplane IC694CHS398 Series 90-30 10-Slot Expansion Backplane IC693CHS392 Series 90-30 5-Slot Expansion Backplane IC693CHS398 Series 90-30 10-Slot Remote Expansion Backplane IC693CHS393 Series 90-30 5-Slot Remote Expansion Backplane IC693CHS399 PACSystems* RX3i System Manual Section 2 GFK-2314T Sept. 2019 Introduction 15 1.4.4 Power Supplies for RX3i Systems Power Supplies for Universal and Serial Expansion Backplanes are listed below. Refer to Chapter 4 for descriptions and specifications of the RX3i Power Supplies. For information about Series 90-30 Power Supplies the GEK-0898, Series 90-30 I/O Module Specifications Manual. n If the system includes only Expansion Backplanes, the total distance from the CPU to the last backplane cannot be more than 15 meters (50 feet) n If the system includes any Remote Backplanes, the total distance from the CPU to the last backplane cannot be more than 213 meters (700 feet). Remote Backplanes provide the same functionality as Expansion Backplanes over a much greater distance. Remote Backplanes have extra isolation circuitry that lessens the effect of unbalanced ground conditions that can occur when backplanes are located long distances from each other and do not share the same ground system. Communications between the CPU and a Remote Backplane may take slightly longer than communications between the CPU and an Expansion Backplane. This delay is usually small compared to the total CPU scan time. PACSystems* RX3i System Manual Section 2 GFK-2314T Sept. 2019 Introduction 17 1.5.1 Expansion System with One Expansion or Remote Backplane An Expansion system can consist of a Universal Backplane with just one Expansion or Remote Backplane. This example includes one Universal Backplane IC695CHS012 and one Expansion Backplane, IC694CHS392. Each Backplane in this example has a DC Power Supply. Together, they accommodate 19 discrete, analog, and specialfunction modules. These backplanes are located 15m (50 ft) apart. They are connected via an Expansion Cable IC693CBL302, which has a built-in terminating resistor. If it were necessary to locate the second backplane more than 15m (50 ft) from the Universal Backplane, a Series 90-30 Remote Backplane could be used with a custom-length cable and external terminating resistor. Universal Backplane One Expansion Backplane I/O Expansion Cable IC693CBL302 Cable Length: 15 m (50 ft) Figure
