描述
对于控制较复杂，要求实现PID运算、闭环控制、通信联网等功能，可视控制规模大小及复杂程度，选用中档或高档PLC。但是中、高档PLC价格较贵，一般大型机主要用于大规模过程控制和集散控制系统等场合。
NATIONAL INSTRUMENTS CB-50LP UNSHIELDED I/O CONNECTOR
National Instruments 181830E-01 CCA, AT-GPIB/TNT NEW
National Instruments GPIB-100A
National Instruments NI PCI-6503 (PCI-DIO-24) DAQ Card
SAVE $120 NI National Instruments PCI-6503 Digital I/O
NATIONAL INSTRUMENTS NI PCI-6503 Digital I/O – SAVE $$$
National Instruments 180758-02 Bus Cable M1
National Instruments 186936A-01, 16 port break out box
NATIONAL INSTRUMENT SCXI-1327 HIGH VOLTAGE BLOCK MODULE
National Instruments MXIbus Cable
