描述
PLC有种种措施。不同的PLC措施也不完全相同，提高响应速度的效果也不同。一般的作法是采用输入中断，然后再输出即时刷新，即中断程序运行后，有关的输出点立即刷新，而不等到整个程序运行结束后再刷新。
National Instruments nuDrive 4-Axis Servo Amplifier
National Instruments Extender Card VXI-MXI-2
National Instruments NI PCI-6220 PCI Card
National Instruments NI PXI-8156 PXI DAQ
National Instruments PCI-6013 Basic 200 kS/s 16 Bit
National Instruments PCI-GPIB Card, 778032-01, New!
National Instruments AT-MIO-16XE-50 NI-DAQ Board Card
National Instruments AT-MIO-16DE-10 w/ 60 day warranty
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NATIONAL INSTRUMENTS DAQCard-6024E for PCMCIA + CABLE
National Instruments NI PCI-6035E
National Instruments PXI-7334 PXI7334 Motion Controller
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