描述
PLC还有特殊的或称智能或称功能模块。如A/D（模入）模块、D/A（模出）模块、高速计数模块、位控模块、温度模块等等。这些模块有自己的CPU，可对信号作预处理或后处理，以简化PLC的CPU对复杂的程控制量的控制。智能模块的种类、特性也大不相同，性能好的PLC，这些模块种类多，性能也好。
NI National Instruments PCI-MIO-16EX-50 183454E-01 ++
National Instruments NI PCI-GPIB / LP card Interface
National Instruments Counter Module FP-CTR-500
Expedited shipping available
NATIONAL INSTRUMENTS NI PCI-8212 GPIB ETHERNET MODULE
National Instrument cFP-TC-120 and cFP-CB-3
National Instruments SCXI 1121 4-Channel Isolation Amp
National Instruments PCI1200 multifunctional DAQ board
National Instruments PCI-6023E FREE WORLD WIDE SHIPPING
National Instruments NI PCMCIA GPIB Card&4M Cable,Test!
National Instruments GRIB/TNT IEEE 488.2 Interface & SW
National Instruments TB-2630 MUX Terminal Block
