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From Friday, April 19th (11:00 PM CDT) through Saturday, April 20th (2:00 PM CDT), 2024, ni.com will undergo system upgrades that may result in temporary service interruption.
We appreciate your patience as we improve our online experience.
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使用M系列的数据采集卡时,其模拟触发输入的引脚就是 APFI(analog programmable function input)。然而在E系列的数据采集卡上,模拟触发以及数字触发的功能都可以通过PFI引脚端口来实现。 换言之,在M系列数据采集卡上PFI0不能同时拥有模拟以及数字触发两种功能。
注意: APFIx也是模拟输出应用中外部参考信号的引脚。另外,虽然在每一个连线端上都有一个模拟触发引脚, 但一张数据采集卡上还是只有一个模拟触发电路。
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