NI PXIe-5653模拟信号发生器
1.产 品 介 绍
品牌：NI
型号：NI PXIe-5653
产品说明：模拟信号发生器
优势：供应进口原装正品，专业停产配件。
2.产 品 详 情 资 料：
NI PXIe-5653使用相关中继器/转换器。复杂的多点配置包含一个或多个多点部分，其中隔离中继器/转换器作为其中一个分支。在简单和复杂的多点配置中，NI PXIe-5653主设备下游的变送器可以一直打开。由于只有一个设备（主设备）向下游传输，因此通信线路不会发生争用。在简单的多点配置中，只要设备在空闲时三态驱动程序，并且只有在有东西要传输时才打开驱动程序，那么在上行传输时就不会发生争用。Series 90-70和Series 90-30 CMM的情况就是如此。然而，在复杂的多点配置中，必须采取特殊步骤来切换隔离中继器/转换器的上游变送器。切换上游变送器。NI PXIe-5653为了使RS-422驱动程序在隔离中继器/转换器的J2端口激活，J处的RTS输入必须为真。J端口上RS-422驱动器的状态取决于装置上开关的位置。当开关处于中间位置时
lated Repeater/Converter is used. Complex multidrop configurations contain one or more multidrop sections where an Isolated Repeater/Converter is included as one of the drops. In both simple and complex multidrop configurations, the transmitters directed downstream from the master can be on at all times. NI PXIe-5653There will be no contention for the communication line because only one device (the master) transmits downstream. In simple multidrop configurations, there will be no contention when transmitting upstream as long as devices tri-state their drivers when idle and turn them on only when they have something to transmit. This is the case for the Series 90-70 and Series 90-30 CMMs. In complex multidrop configurations, however, special steps must be taken to switch the upstream transmitters of the Isolated Repeater/Converter. Switching Upstream Transmitters. For the RS-422 drivers to be active at the J2 port of the Isolated Repeater/Converter, the RTS input at JNI PXIe-5653 must be true. The state of the RS-422 drivers at the JNI PXIe-5653 port depends on the position of the switch on the unit. When the switch is in the center position
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