描述
高、中档的PLC，还开发有NC单元，或运动单元，可实现点位控制。运动单元还可实现曲线插补，可控制曲线运动。所以，若PLC配置了这种单元，则完全可以用NC的办法，进行数字量的控制。新开发的运动单元，甚至还发行了NC技术的编程语言，为更好地用PLC进行数字控制提供了方便。
National Instruments NI PCI-6035E SAVE $ FREE WW SHIP
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National Instruments NI GPIB-ENET/100 Ethernet
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National Instruments PCI-6733, 8 16-Bit Analog Outputs
National Instruments SCXI 1140 8 CH Sample Hold AMP
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NATIONAL INSTRUMENTS 179055-01 NATIONAL INST. MODULE
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National Instruments RS-232/485 Comm. Module SCXI-2400
National Instruments ER-16 Module Assembly 183064B-02
