ABB IMASO01模拟输出从机
ABB IMASO01模拟输出从机中文资料：
ABB IMASO01模拟输出从机如果应用程序需要十多个模块，该怎么办？您可以向该系统添加一个或多个扩展或远程机架。一些CPU最多可以支持七个额外的机架。如果再增加7个10插槽机架，则可以再增加70个模块。机架以“菊花链”布线方式互连。该互连系统称为“I/O扩展总线”。连接从一个基板的I/O总线扩展连接器（如上图所示）连接到下一个基板。下图所示的I/O总线扩展电缆的一端有一个双连接器，ABB IMASO0以方便这些连接。下图显示了一个具有CPU底板、一个扩展机架和三个远程机架的系统。请注意，最后一个机架（位于I/O扩展总线末端的机架）必须终止。如图所示，使用IC693ACC307 I/O总线终端插头是终止总线的一种方便方法。扩展和远程底板之间的区别是什么？要考虑的主要因素是距离。基板离CPU基板有多远？如果与CPU基板的布线距离小于等于50英尺（15米），请使用扩展基板。扩展基板是首选的，因为它与CPU基板的通信速度更高ABB IMASO0
英文资料
What if the application requires more than ten modules? You can add one or more Expansion or Remote racks to this system. Some CPUs can support up to seven additional racks. If you added seven additional 10-slot racks, you could have 70 more modules. Racks are interconnected in a “daisy-chain” cabling arrangement. This interconnection system is called the “I/O Expansion Bus.” The connections are made from one baseplate’s I/O Bus Expansion Connector (shown in the figure above) to the next one’s. The I/O Bus Expansion Cables, shown below, have a double connector on one end to facilitate these connections.The next figure shows a system that has a CPU baseplate, one Expansion rack and three Remote racks. Notice that the last rack, the one at the end of the I/O Expansion Bus, must be terminated. A convenient way of terminating the bus is with an IC693ACC307 I/O Bus Terminator Plug, as shown.What is the Difference Between Expansion and Remote baseplates? The main factor to consider is distance. How far will the baseplate be from the CPU baseplate? If the cabling distance from the CPU baseplate is 50 feet (15 meters) or less, use an Expansion baseplate. The Expansion baseplate is preferable because of its higher communication speed with the CPU baseplateABB IMASO0
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