描述
电磁阀的开闭、大电感负载、动作频率低的设备，PLC输出端采用继电器输出或者固态继电器输出;各种指示灯、变频器/数字直流调速器的启动/停止应采用晶体管输出一般的手持编程器编程。手持编程器只能用商家规定语句表中的语句表（STL）编程。这种方式效率低，但对于系统容量小、用量小的产品比较适宜，具有体积小、价格低、易于现场调试等优点。这主要用于微型PLC的编程。
National Instruments GPIB-IEEE 488 Interface MS-DOS NEW
National Instruments cFP-RTD-122 8-Ch RTD Input
NATIONAL INSTRUMENTS NI GPIB-VXI/C 184511B-01
NATIONAL INSTRUMENTS CFP-RTD-124 INPUT 8-CHANNEL 4-WIRE
National Instruments NB-GPIB-P/TNT Parallel Adapter
50 Pin CABLE 2X25 for NATIONAL INSTRUMENTS 18″ Qty 1
National Instruments SH96-96 183228B-05 5 Meter Cable
National Instruments NI PCI-6035E SAVE $ FREE WW SHIP
NATIONAL INSTRUMENTS CFP-DI-301 DIGITAL DISCRETE INPUT
National Instruments 182885E-01 Plug/Play Card NOS
