TSXDEZ12D2 可编程序控制器的英文为Programmable Controller,在二十世纪70-80年代一直简称为PC。由于到90年代,个人计算机发展起来,也简称为PC;加之可编程序的概念所涵盖的范围太大,所以美国AB公司将可编程序控制器定名为可编程序逻辑控制器(PLC-Programmable Logic Controller),为了方便,仍简称PLC为可编程序控制器。有人把可编程序控制器组成的系统称为PCS可编程序控制系统,强调可编程序控制器生产厂商向人们提供的已是完整的系统了。 2 PLC的发展和市场情况 2.1 PLC的发展历史 1968年美国GM(通用汽车)公司提出取代继电器控制装置的要求,*二年美国数字公司研制出了 代可编程序控制器,满足了GM公司装配线的要求。随着集成电路技术和计算机技术的发展,现在已有*五代PLC产品了。 在以改变几何形状和机械性能为特征的制造工业和以物理变化和化学变化将原料转化成产品为特征的过程工业中,除了以连续量为主的反馈控制外,特别在制造工业中存在了大量的开关量为主的开环的顺序控制,它按照逻辑条件进行顺序动作号按照时序动作;另外还有与顺序、时序无关的按照逻辑关系进行连锁保护动作的控制;以及大量的开关量、脉冲量、计时、计数器、模拟量的越限报警等状态量为主的—离散量的数据采集监视。由于这些控制和监视的要求,所以PLC发展成了取代继电器线路和进行顺序控制为主的产品。在多年的生产实践中,逐渐形成了PLC、DCS与IPC三足鼎立之势,还有其它的单回路智能式调节器等在市场上占一定的百分比。 278 10 shipping Watch From Turkey Item image Mitsubishi A1SY10EU PLC Module Pre-Owned 486 68 + 278 10 shipping Watch From Turkey Item image TOA V-1071B Line Amplifier Module Open Box 486 68 + 278 10 shipping Watch From Turkey Item image PRX Capsule Thyristor PRX-TA20221603QP Pre-Owned 521 45 + 243 34 shipping Watch From Turkey Item image ABB CONTROL UNIT THERMISTOR VDE 0435 C250 Lot of 2 pieces Pre-Owned 486 68 + 278 10 shipping Watch From Turkey Item image Mitsubishi PLC FX2N-4AD-PT Programmable FX2N4ADPT Pre-Owned 486 68 + 278 10 shipping Watch From Turkey Item image HIQUEL DGR - speed control/PLC watchdog relay Pre-Owned 486 68 + 278 10 shipping Watch From Turkey Item image PHOENIX CONTACT MCR-R/U-V 2769637 Free Express Shipping Pre-Owned 764 79 Free Shipping Watch From Turkey Item image KOYO Kostac E-01T-4157 Relay Output programmable controller E01T4157 486 68 + 278 10 shipping Watch From Turkey Item image PEPPERL+FUCHS KFD2-SOT2-EX1 LB SWITCH AMPLIFIER CONNECTION Free Express Shipping Pre-Owned 764 79 Free Shipping Watch From Turkey Item image Mitsubishi F0N-8EX-ES/ULX I/O Module Pre-Owned 556 21 + 208 58 shipping Watch From Turkey Item image Bailey NDSI02 Network 90 Digital Slave Input Module Pre-Owned 521 45 + 243 34 shipping Watch From Turkey Item image Allen-Bradley MicroLogix1500 1764-MM1 8K Word Memory Module Pre-Owned 486 68 + 278 10 shipping Watch From Turkey Item image Siemens 6ES5-700-8MA11 Simatic S5 Bus Module Pre-Owned 486 68 + 278 10 shipping Watch From Turkey Item image Schneider Electric Tsx-rkz-02 Tsxrkz02 TSXRKZ02 Pre-Owned 486 68 + 278 10 shipping Watch From Turkey Item image Pelco C10dn Series C10dn-6 CCTV Camera Brand New 521 45 + 243 34 shipping Watch From Turkey Item image BECKHOFF KL1104 MODULE Pre-Owned 556 21 + 208 58 shipping Watch From Turkey Item image LS LG PLC Expansion Module G7E-DR08A Pre-Owned 486 68 + 278 10 shipping Watch From Turkey Item image Omron Cqm1-pa206 Cqm1pa206 Power Supply Unit Pre-Owned 486 68 + 278 10 shipping Watch From Turkey Item image Bamford Ajax CMS2000 flow meters Analogue Module Pre-Owned 556 21 + 208 58 shipping Watch From Turkey Item image LG Master-k K3p-07as K3P07AS PLC Pre-Owned 486 68 + 278 10 shipping Watch From Turkey Item image WESTERN DIGITAL 320GB WD3200AAJB- 00J3A0 Pre-Owned 486 68 + 278 10 shipping Watch From Turkey Item image Moxa Dr-75-24 DIN Rail Power Supply Pre-Owned 486 68 + 278 10 shipping Watch From Turkey Item image Pepperl Fuchs K-system Kfd2-stc4-ex1 Circuit Barrier Pre-Owned 486 68 + 278 10 shipping Watch From Turkey Item image B&B Electronics optically isolated converter 485LDRC9 RS-232 RS-422/485 Pre-Owned 521 45 + 243 34 shipping Watch From Turkey Item image i-Shot XBlock EM12338 SD Composite Interface Board Pre-Owned NEWPORT 205-PA1-R-C0 PANEL PROCESS METER Pre-Owned 521 45 + 243 34 shipping Watch From Turkey Item image Siemens 6ES5-482-8MA13 S5 32x Digital Input Pre-Owned 486 68 + 278 10 shipping Watch From Turkey Item image Delta V fisher rosemount KJ4001x1-HC1 kj4001x1-hc1 Pre-Owned 549 26 + 208 58 shipping Watch From Turkey Item image Fisher rosemonut delta V KJ4001X1-NB1 kj4001x1-nb1 kj4001x1nb1 Pre-Owned 549 26 + 208 58 shipping Watch From Turkey Item image Fisher rosemount delta V KJ4010X1-BF1 kj4010x1-bf1 kj4010x1bf1 Pre-Owned 549 26 + 208 58 shipping Watch From Turkey Item image Fisher rosemount Delta V kj4010x1-bg1 KJ4010x1-bg1 kj4010x1bg1 Pre-Owned 549 26 + 208 58 shipping Watch From Turkey Item image WAGO 4 POINT DIGITAL I/O MODULE 750-610 Pre-Owned 451 92 + 278 10 shipping Watch From Turkey Item image Opto 22 PB16T Relay Board 16 Point Solid State 486 68 + 243 34 shipping Watch From Turkey Item image Lot of 2 pieces Siemens DP Module 6es7 193 6es7193-4cb20-0aa0 Pre-Owned 451 92 + 278 10 shipping Watch From Turkey Item image PEP Modular Computer 619095-14-14-02 Brand New 451 92 + 278 10 shipping Watch From Turkey Item image NEWPORT MODEL 505 ISOLATOR Pre-Owned 451 92 + 278 10 shipping Watch From Turkey Item image Siemens PLC DM8 12/24R LOGO 6ED1055-1MB00-0BA1 Pre-Owned 451 92 + 278 10 shipping Watch From Turkey Item image PHOENIX CONTACT MCR-C-UI-UI-DCI 2810913 Pre-Owned 451 92 + 278 10 shipping Watch From Turkey Item image JVC TK-C750U CCD Color Video Security Camera System Cameras Pre-Owned 486 68 + 243 34 shipping Watch From Turkey Item image EOTec 6C02 Electrical InterFace Pre-Owned 451 92 + 278 10 shipping Watch From Turkey Item image MEASUREMENT TECHNOLOGY LTD MTL7099 mtl 7099 Dummy Barrier Pre-Owned 417 16 + 278 10 shipping Watch From Turkey Item image ENM T50A4 AC Hour Meter I 6 Digit 2 31 In Round Brand New 347 63 + 347 63 shipping Watch From Turkey Item image Direct D3-16NE3 - 24 VAC/DC Input Module 417 16 + 278 10 shipping Watch From Turkey Item image DANFOSS CI 9 9A (MAX) 4KW 110V COIL CONTACTOR 037H0021-16 417 16 + 278 10 shipping Watch From Turkey Item image MOXA TECHNOLOGIES EDS-205 Ethernet Switch Pre-Owned 417 16 + 278 10 shipping Watch From Turkey Item image Ge FANUC IC200ERM002E Expansion Reciever Pre-Owned 695 26 Free Shipping Watch From Turkey Item image SELECTRON GZU30 CH-3250 LYSS Inkl MwSt Pre-Owned 417 16 + 278 10 shipping Watch From Turkey Item image ABB R1542 1SAR 213 100 R0251 Interface Relays Lot of 3 Pre-Owned 417 16 + 278 10 shipping Watch From Turkey Item image Siemens SIMATIC S5 6ES5 100-8MA02 6ES5100-8MA02 Pre-Owned 417 16 + 278 10 shipping Watch From Turkey Item image Allen-Bradley 1762-OB8 (1762-OB8) Output Module Pre-Owned 417 16 + 278 10 shipping Watch From Turkey Item image Mitsubishi Programmable Controller Fx2n-4ad Fx2n4ad PLC Module Pre-Owned 417 16 + 278 10 shipping Watch From Turkey Item image Interlogic KTD-313 Data Converter Pre-Owned 451 92 + 243 34 shipping Watch From Turkey Item image MİTSUBİSHİ MELSEC Q61P-A1 POWER SUPPLY Pre-Owned 417 16 + 278 10 shipping Watch From Turkey Item image Mitsubishi A1SX80 Input Module Pre-Owned 417 16 + 278 10 shipping Watch From Turkey Item image TELEMECANIQUE LC1 D2510 Pre-Owned 417 16
词条
词条说明
DS-CAC-845W DCS集散式控制系统: 1. Allen-Bradley(罗克韦尔):1746/1747/1756/ 1771/ 1785 1769/2711系列、Reliance瑞恩。 2. Schneider(施耐德): Modicon Quantum 140CPU处理器、输入输出模块、电源模块等。 3. GE. 90/70 90/30系列 比如型号IC693CMM321 4. FOX
6SE9212-8BA40 DCS集散式控制系统: 1. Allen-Bradley(罗克韦尔):1746/1747/1756/ 1771/ 1785 1769/2711系列、Reliance瑞恩。 2. Schneider(施耐德): Modicon Quantum 140CPU处理器、输入输出模块、电源模块等。 3. GE. 90/70 90/30系列 比如型号IC693CMM321 4. F
OL-266-2 DCS集散式控制系统: 1. Allen-Bradley(罗克韦尔):1746/1747/1756/ 1771/ 1785 1769/2711系列、Reliance瑞恩。 2. Schneider(施耐德): Modicon Quantum 140CPU处理器、输入输出模块、电源模块等。 3. GE. 90/70 90/30系列 比如型号IC693CMM321 4. FOXBOR
00-125-041 DCS集散式控制系统: 1. Allen-Bradley(罗克韦尔):1746/1747/1756/ 1771/ 1785 1769/2711系列、Reliance瑞恩。 2. Schneider(施耐德): Modicon Quantum 140CPU处理器、输入输出模块、电源模块等。 3. GE. 90/70 90/30系列 比如型号IC693CMM321 4. FOXB
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