Modular Data Acquisition
Distributed Measurement and Control
High-Performance Test
Automated Test System Development Software
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You can request repair, RMA, schedule calibration, or get technical support. A valid service agreement may be required.
Provides support for NI data acquisition and signal conditioning devices.
Provides support for Ethernet, GPIB, serial, USB, and other types of instruments.
Provides support for NI GPIB controllers and NI embedded controllers with GPIB ports.
修改时间 05-28-2012 08:27 PM
请问调用什么样的API来调整PCI6221的数字引脚,使其默认读入/输出电平为高,而非低电平状态。因为当前系统的外部硬件输入信号是以拉低数字引脚而作为有效输入信号。
修改时间 06-22-2012 10:53 PM
没完全明白你的意思,但是读取/写入高低电平都是可以的啊,用DAQmx都是可以做到的,与外部硬件信号配合不存在问题吧。
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