描述
PLC主机上安装一块RS-485通讯板或挂接一块RS-485通讯模块；在PLC的面板下嵌入一块造价仅仅数百元的“功能扩展存储盒”，编写4条极其简单的PLC梯形图指令，即可实现8台变频器参数的读取、写入、各种运行的监视和控制，通讯距离可达50m或500m。
FLUKE 187 TRUE RMS MULTIMETER
HP 58503A GPS time and frequency Receiver
INVISION SBUS SBDU REV 3 107238-1
AIRSPAN WipLL BSR 3.75GHZ TDD V-POL 09100003
ALVARION DS11-RB/OUTDOOR-ETSI 811552 2.4-2.7GHZ
INTEL PHD A505-0002 BARKAN SV BOARD
KLA-Tencor PWA E11-13209-7 REV-D E11-13209
PIKA PIK-043-00258 PCI PIK043-00258
TECHNOTEAM IDISK 2.4 BLADE
TELKOOR CPCI AC-6U-400 MODULE
FAST-MK : ME1230-V5-LEO ME1230 V5 LEO NEW
