上世纪60年代后期，根据当时汽车市场需求和计算技术的发展，在美国麻萨诸塞州Bedford的Bedford Associates,向美国汽车制造业提议开发一种Modular Digital Controller（MODICON）取代继电控制盘。其它一些公司也建议以计算机为基础的方案。其核心思想是采用软件编程方法代替继电控制的硬接线方式，并备有生产现场大量使用的输入传感器和输出执行器的接口，以便于进行大规模生产线的流程控制。这就是以后被称为Programmable Logic Controller的由来。MODICON 084是世界上种投入商业生产的PLC。
70年代是PLC崛起，首先在汽车工业获得大量应用，在其它产业部门也开始应用的时期。80年代是它走向成熟，全面采用微电子及微处理器技术；大量推广应用，并奠定其在工业控制中不可动摇地位的时期。在此阶段PLC销售始终以两位数百分点的速度增长，前六年的增长率超过35%，后四年稳定发展，年增长率约12%。90年代又开始了它的第三个发展时期。随着PLC的国际标准IEC 61131的正式颁布，推动了PLC在技术上发动新的突破：在系统体系结构上，从传统的单机向多和分布式及远程控制系统发展；在编程语言上，文本化和图形化的语言多样，创造了更具表达控制要求、文字处理、通信能力的编程环境。
从应用范围和应用水平上，除了继续发展机械加工自动生产线的控制系统外，则是发展以PLC为基础的DCS系统、和数据采SCADA系统、柔制造系统（FMS）、安全联锁保护（ESD）系统、运动控制系统等，全方位地产提高PLC的应用范围和水平。
进入90年代后期，由于用户对开放的强烈要求和压力，由于信息技术的大力推动，PLC如果还停留在原有的专用而又封闭的系统概念上，它将坐以待毙。于是PLC进入了其发展的第四阶段。其特征是：
Omron Yaskawa G5 AC drive CIMR G5U20P
Yaskawa CIMR-VU4A0004FAA V1000 AC Drive NIB
New Yaskawa Current Vector Drive (ESC1081)
Magnetek Yaskawa CIMR-G3U41P5 2HP 460V AC Drive
4 Units Available
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IDM YASKAWA AC DRIVE CIMR-P5U23P7 FROM MILLTRONICS PART
Yaskawa V1000-CIMR-VU4A0005FAA Rev.A AC Drive 3HP 480V
Expedited shipping available
Yaskawa SGDK-3030AEA 300W Servo Drive Motor Amplifier
Yaskawa SGDH-04FE 400W Servo Drive Sigma II Motor Amp
YASKAWA VARISPEED 616G2 VARIABLE SPEED DRIVE 200-230V
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YASKAWA Adjust Freq Drive CIMR-PCU40P2 NEW!
USED PULLOUT YASKAWA SERVOPACK SERVO DRIVE SGDA-04AP
Yaskawa Servopack Servo Drive SGDA-04AS 30 day warranty
NOS YASKAWA AC Drive CIMR-V7CU21P54
YASKAWA GPD205-A0P2 DRIVE 1.5A
Yaskawa Servopack SGDH-01AE 200V Servo Drive Free Ship
Yaskawa GPD315/V7 Mini AC Drive CIMR-V7AM40P7
Yaskawa GPD 35/7V CIMRV7AM40P2 Mini AC Drive 460 Vac
USED PULLOUT YASKAWA SERVOPACK SERVO DRIVE SGD-02BP
ETC618960-S1010 Yaskawa PCB Control Card for P7 drives
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ETP604785 Yaskawa PCB POWER BOARD V7 Drives 460V 3PH 5.
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ETP604786 Yaskawa PCB POWER BOARD V7 Drives 460V 3PH 5.
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ETP604783 Yaskawa PCB POWER BOARD V7 Drives 460V 3PH 5.
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NOS YASKAWA AC Drive CIMR-V7AM20P41
Yaskawa Varispeed 808SBA SBA20P2 AC Drive 0.2kW 230VAC
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YASKAWA SERVOPACK SGDL-02AS SERVO DRIVE
YASKAWA SERVOPACK SGDL-04AS SERVO DRIVE
ETP604495 Yaskawa PCB POWER BOARD V7 Drives 200V 3PH 5.
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Yaskawa V7-4X Varispeed CIMR-V7CU20P44 AC Drive VFD
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Yaskawa Magnetek CIMR-V7AM40P7 AC Drive 1HP 460V VFD
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Yaskawa Electric SGDS-02A12A ServoPack 200V Servo Drive
CIMR-J7AM20P70 Yaskawa J7 GPD305 AC Drive 1HP 230V VFD
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YASKAWA SGDM-08AD SERVOPACK SERVO DRIVE SGDM SGDM08AD
Yaskawa Servopack SGDA-A3BPY138 Servo Drive 100V 30W
YASKAWA SGDA-01AS servopack amplifier drive SGDA01AS
YASKAWA CPCR-FR01RB CPCRFR01RB SERVO DRIVE
Yaskawa ETC615018-S5423 PCB, CONTROL, G5 Drive
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Yaskawa SGDM-04ADA 0-230V 400W , Servo Drive – Tested
Yaskawa SGDM-04ADA 0-230V 400W , Servo Drive sn:90048
Yaskawa Servo SET SGD-02 drive and motor Mach3 gecko
YASKAWA CIMR-J7AM40P2 J7 DRIVE CIMRJ7AM40P2 NIB
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Yaskawa GPD 315 AC Drive CIMR-V7AM40P2 0.2kW Magnetek
YASKAWA DRIVE BOARD ETP615525 YPCT31235-1D YTP52-0Z1
YASKAWA SGM-02A312 SERVO DRIVE WITH ENCODER
Yaskawa SGDL-02AS Servopack Drive 0-230V 200W 2.0A
ETC604670-S0032 Yaskawa PCB CONTROL V7 Drives 4.0kW or
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YASKAWA SGDH-01BE SERVOPACK DRIVE
Yaskawa VS-606V7 AC Drive
YASKAWA SERVOPACK SERVO DRIVE 230 V SGD-04AS
Yaskawa CIMR-J7AM40P7 AC Speed VFD Drive
YASKAWA SGDA-02AS/SGM-02A314 Servo Drive & Motor cnc
CPT020057 EFV-115 KEC Transformer CNTRL.YASKAWA DRIVE
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(LOT OF 5) SANREX DD60KB160 SCR’S FROM YASKAWA DRIVE
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YASKAWA SGM-A3A312B SERVO DRIVE WITH ENCODER
YASKAWA VARISPEED 5 HP VFD DRIVE 616G2
NEW Yaskawa SGDS-01F31AY500 ServoPack 100V Servo Drive
Yaskawa servopack Servo Drive SGDA-02AP 200W cnc router
Yaskawa Servopack Servo Drive SGDA-02AS 200W Free Ship
Yaskawa SGMAH-08ABAB1 0-230V 750Watt servo drive
Yaskawa Servopack Servo Drive SGDA-01AS WARRANTY 30 DAY
Yaskawa Servopack Servo Drive SGDA-01AP WARRANTY 30 DAY
Yaskawa Servopack Servo Drive SGDA-02AS WARRANTY 30 DAY
Yaskawa GPD 305/J7 CIMR-J7AM20P7 Drive CIMRJ7AM20P7 WOW
YASKAWA SERVOPACK — CACR-PR01AE4ESY6 — AC SERVO DRIVE
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Yaskawa AC Drive 2HP 480V Adjustable # CIMR-F15AS2
Yaskawa CIMR-J7AM40P2 AC Speed VFD Drive CIMRJ7AM40P2
Yaskawa # CIMR-V7AM40P7 AC Drive
NOS YASKAWA AC Drive CIMR-V7CU20P74
USED PULLOUT YASKAWA SERVOPACK SERVO DRIVE SGDA-02BP
ETX002410 Yaskawa PCB snubber board for spindle drive
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YASKAWA SERVOPACK SGDL-04AS 400W SERVO DRIVE SGDL-04 AS
Yaskawa ETC615992-S6422 PCB CONTROL G5 F-SPEC Drive
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YASKAWA SERVOPACK SGDA-01BPP AC SERVO DRIVE NEW BOX
ETC615011-S1026 Yaskawa Control PCB for G5 Drives
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YASKAWA SGDA-04AP SERVOPACK SERVO DRIVE 6A 1PH **XLNT**
Yaskawa ETC615016-S5422 PCB, CONTROL, G5, F-SPEC Drive
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JVOP-104 Yaskawa Remote Interface G3/G3+/H3/VG3 drives
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Yaskawa SGDH-10AE Servo Drive Amplifier 1KW
Yaskawa SigmaI SGDA-02As 200W SERVO DRIVE free ship
NEW YASKAWA MOTIONPACK-34 CMPC-CM34-B6 SERVO DRIVE
Yaskawa ServoPack SGDS-01A31A Servo Drive
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Yaskawa Servo Drive SGDA-03BP 300W cnc router
Yaskawa SGMM-A3B3NS12 + Gear with screw drive
Yaskawa CIMR-J7AM40P2 AC Drive .5HP 460V
YASKAWA CIMR-J7AA20P1 AC DRIVE 200V 3PH 0.1KW **XLNT**
Yaskawa SGDA-04AP 200V Servopack Servo Drive
Yaskawa Sigma I SGDA-04AP 400W SERVO MOTOR DRIVE CNC
Yaskawa Digital AC Servo Drive
Yaskawa servo drive SGDA-01As 100W Sigma1 free ship
Yaskawa 1.5 HP AC Vari Drive Unit, # CIMR-PCU40P7
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YASKAWA DRIVE CONTROL BOARD GCMK-C2X ETC615024-S5110
YASKAWA CARC-PR02AC4ER SERVOPACK/DRIVE
Yaskawa Sigma I SGDA-02AS 200W SERVO MOTOR DRIVE CNC
Yaskawa Sigma I SGDA-02AP 200W SERVO MOTOR DRIVE CNC
Yaskawa Servopack Drive SGDH-04AP. MOTOR DRIVE
YASKAWA CIMR-XCAA20P1 VS mini DRIVE
YASKAWA CIMR-XCAA20P2 VS mini DRIVE
Yaskawa 1.5 HP AC Vari Drive Unit, # CIMR-VU4A0004BAA
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CPT006230 87-2026 YASKAWA TRANSFORMER ASSEMBLY G2 Drive
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Yaskawa CIMR-3.7WS.P 5kVA Varispeed 676 Inverter Drive
YASKAWA DRIVE GPD 305/J7 CAT#CIMR-JJAM20P2
