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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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对关闭的母版施加一个电压是不建议的。对于DIO-32HS或者其他非隔离的DIO板卡。原理上,这会损坏板子或者计算机,这些NI公司是不负责的。但是,我们无法意识到是哪里出现了问题,我们会在特定系统上出现启动问题报告,可能这些问题是和母版有关系的。
DIO-32HS和其他非隔离的DIO板子包含从输入线到Vcc功率输出二极管。这些二极管降低了ESD和过载的损坏可能。这些二极管强制输入线的电压低于或者等于Vcc。如果当Vcc关闭时,你将一个输入设为5V,然后将二极管打开,发送一个功率给Vcc线。
一些可能的解决方案:
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