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Product Safety Alert: Fuses Recommended in NI 651x Applications One of the most common failure modes of NI 651x devices that have been returned to National Instruments for repair is damage caused by incorrect wiring - typically a short circuit between outputs and power or ground. Creating this short circuit will damage the board and can result in a fire URL: http://digital.ni.com/public.nsf/allkb/1E677C06384983218625743300501786

Which 651x Products are Affected by the April 2008 Product Safety Alert? I recently received notification from National Instruments recommending the addition of fuses to protect my PXI or PCI 651x board. Which boards are affected by this recommendation? URL: http://digital.ni.com/public.nsf/allkb/FCD1F4C0FA40BA468625743300644C4A

Expected Voltage Drop on the Digital Output Lines of NI-651x Devices I am using an NI-651x digital board, one of the 30 V bank isolated industrial devices. These devices require an external power supply for sourcing and sinking output signals. What kind of voltage drop can I expect between Vcc and PX.X for sourcing outputs or PX.X and Ground URL: http://digital.ni.com/public.nsf/allkb/8D46388A20C5A23E862572B8007E8C82

NI-651xシリーズデバイスのデジタル出力ラインにはどの程度の電圧降下が予想されますか NI-651xシリーズのデジタルボードを使用しています。このシリーズのデバイスは30 V バンク絶縁の工業用デジタルボードデバイスです。これらのデバイスはソース/シンク出力の為に、用途に応じた電圧値に設定された外部電源を必要とします。ソー URL: http://digital.ni.com/public.nsf/allkb/657BF4AABB6825C48625739F003E5427

当输入给 VCC 的电压小于 10VDC 时，PCI-6515 的 +5V I/O 连接管脚的电压是多少？ 在 PCI-6515 的规范中指出，如果 VCC 的电压高于 10VDC，那么 +5V I/O 连接管脚的输出为 5V，但是如果 VCC 的输入在 5V 与 10V 之间的话会是什么情况？ URL: http://digital.ni.com/public.nsf/allkb/D186AA3779A6A80E4825725800133CD6

What is the Value of +5V I/O Connector Pin on PCI-6515 when Input to VCC is Less Than 10VDC? In the specifications for the PCI-6515 it is mentioned that the +5V I/O connector pin will output 5V if VCC is greater than 10VDC, but what happens when the input to VCC is between 5V and 10V? URL: http://digital.ni.com/public.nsf/allkb/ECF78765C6EE6A72862572410075C974

为什么我的 NI-6516/17 没有输出数字高？ 我有一个用于数字输出应用的 NI-6516/17 板卡。当我利用数字万用表测试该卡时，在 Measurement & Automation Explorer 中设置高，板卡的没有输出逻辑高。我的板卡哪里出问题了？ URL: http://digital.ni.com/public.nsf/allkb/BE1A463B2C4655CD4825723B002009B1

Why Does My NI-6516/17 Not Output a Digital High? I have a NI-6516/17 board for a digital output application. When I test the card with a digital multimeter, the outputs will not output a logic high when set to high in Measurement & Automation Explorer. What is wrong with my card? URL: http://digital.ni.com/public.nsf/allkb/B8D3301AEE5DECF58625723500028138

왜 NI-6516/17 보드에서 디지털 High 출력이 나오지 않습니까? 디지털 출력 어플리케이션을 위해 NI-6516/17 을 사용하려고 합니다. 디지털 멀티메터로 디지털 보드를 테스트하면, Measurement & Automation Explorer에서 High로 출력을 해도 출력신호가 나오지 않습니다. 보드에 무슨 문제가 있는 것입니까? URL: http://digital.ni.com/public.nsf/allkb/E5A9E94A982D0F808625723B0006BD69

为什么PXI-6527上的光耦隔离最大电压为60 VDC？ 我有一块PXI-6527，为什么PXI-6527上的光耦隔离最大电压为60 VDC？ URL: http://digital.ni.com/public.nsf/allkb/5571DCD64A582B4A862572240032A81C