1969 年，美国数字设备公司(DEC) 研制出第一台 PLC，在美国通用汽车自动装配线上试用，获得了成功。这种新型的工业控制装置以其简单易懂，操作方便，可靠性高，通用灵活，体积小，使用寿命长等一系列优点，很快地在美国其他工业领域推广应用到 1971 年，已经成功地应用于食品，饮料，冶金，造纸等工业。
ALLEN BRADLEY PANELVIEW 550 OPERATOR INTERFACE 2711-K5A
ALLEN BRADLEY REMOTE I/O COMMUNICATIONS MODULE 1203-GK5
INDRAMAT CONTROL BOARD PCB SIO 3-02/00
EZM 24V 10A DC POWER SUPPLY EZMARS10A24BD
ATLAS COPCO RE QUALIFIER TOOL MONITOR BATCH COUNTER 981
OMRON 24V 4.5V DC POWER SUPPLY S8PS-10024C
ALLEN BRADLEY .5-5HP 380-600VAC AC DRIVE MOTOR TERMINAT
SCHNEIDER MODICON PREMIUM RS 485MP+PCMCIA MODULE TSXSCY
SCHNEIDER MODICON TSX PREMIUM 32I 24V DV SINK CONNECTOR
CHARMILLES TECHNOLOGIES I/O INTERFACE BOARD 856 0920 C
BANNER 10-30VDC 5-PIN LASER ADJUSTABLE-FIEL?D SENSOR Q60
LEESON 208-230/460V 1HP 1725RPM INDUSTRIAL AC MOTOR 110
MOTOR POWER COMPANY 180V 2000 RPM INDUSTRIAL AC MOTOR P
SCHNEIDER TSX PREMIUM 12-SLOT EXTENSION CHASSIS TSXRKY1
NETBURNER CONTROL BOARD PCB450140-006
TELEMECANIQUE 24V SAFETY RELAY PREVENTA XPS-AM XPSAM514
INDRAMAT AC SERVO LINE FORMER NAM 1.3-15
JOKAB SAFETY EXPANSION RELAY JSR1T 0S LOT OF 5
