描述
PLC在早期只是用来存储执行逻辑运算、顺序控制、定时、计数和运算等操作的指令;并通过数字输入和输出操作，来控制各类机械或生产过程。这种特性导致他一般用于较小的自控场所，且拓展性并不强。
Kopis 83472 Automatic Fluid Bottle Filling Machine
Clausing Tapping & Drilling Machine Series 165C
PARKER CTC P11-314DR OPERATOR INTERFACE CONTROL
Cutler-Hammer PRL3a POW-R-LINE Panel Board
Dayton 3Z981 14” bandsaw
WESTINGHOUSE NLPL780 CRT PROGRAM LOADER
YOKOGAWA UR100 CHART RECORDER
FUJI PGM1AY01-3Y1SY DIGITAL PLOTTER
KEPCO ATE36-8M DC POWER SUPPLY
MITEL SX2000FD 9400-200-110-NA PHERIPHERAL NODE
