描述
PLC的通信包括PLC与PLC、PLC与上位计算机、PLC与其它智能设备之间的通信，PLC系统与通用计算机可直接或通过通信处理单元、通信转换单元相连构成网络，以实现信息的交换，并可构成“集中管理、分散控制”的多级分布式控制系统，满足工厂自动化（FA）系统发展的需要。
National Instruments (NI) PXI-6071E multifunction I/O
LOT NATIONAL INSTRUMENTS COMBO SOFTWARE DAQMX PXI SCXI
National Instruments NI FP-AI-102 8Ch High Volt Analog
VHDCI Breakout for National Instruments NI “M”seies NEW
NATIONAL INSTRUMENTS PCI-232/485 ISOLATED 4-CHANNEL DAQ
National Instrument PCI MIO 16XE-50 DAQ 183454E-01
National Instruments P/N: 500445P-00 Driver CD Set
National Instruments 32-Channel SCXI-1100 181690E-01
NATIONAL INSTRUMENTS PCI 232/485 RS-232 CARD 8-CHANNEL
National Instruments NI PCI-6030E PCI-MIO-16XE-10 test
National Instruments 181435-10 AT-A0-6/10 Card
National Instruments PCI-6023E FREE WORLD WIDE
