福建中立恒自动化设备有限公司

一、摘要 PLC是一种专门在工业环境下应用而设计的数字运算操作的电子装置。

它采用可以编制程序的存储器，用来在其内部存储执行逻辑运算、顺序运算、计时、计数和算术运算等操作的指令，并能通过数字式或模拟式的输入和输出，控制各种类型的机械或生产过程。PLC及其有关的外围设备都应按照易于与工业控制系统形成一个整体，易于扩展其功能的原则而设计。在工业生产的各个领域，机械加工企业为了提高生产效率，采用机械化流水作业的方式，对不同类型的零件分别组成的自动生产线。随着产品机型的更新换代，生产线承担的加工对象也随之改变，这就需要改变控制程序，使生产线的机械设备按新的工艺过程运行，而继电接触器控制器系统是采用固定接线，很难适应这个要求。大型自动生产线的控制系统使用的继电器数量很多，随着PLC的应用日益普及,其使用方法简单,便于掌握,且可靠性,抗干扰性很强,自身具有完善的功能.模块化的结构,使其在工业生产线上的应用越来越广泛。

　　发展趋势：1.向高速度、大容量方向发展

　　为了提高PLC的处理能力，要求PLC具有的响应速度和更大的存储容量。目前，有的PLC的扫描速度可达0.1ms/k步左右。PLC的扫描速度已成为很重要的一个性能指标。

　　在存储容量方面，有的PLC可达几十兆字节。为了扩大存储容量，有的公司已使用了磁泡存储器或硬盘。

　　2.向超大型、超小型两个方向发展

　　当前中小型PLC比较多，为了适应市场的多种需要，今后PLC要向多品种方向发展，特别是向超大型和超小型两个方向发展。现已有I/O点数达14336点的超大型PLC，其使用32位微处理器，多CPU并行工作和大容量存储器，功能强。

Toshiba MOKC1 2N8C2622P001-EG1 Pcb Circuit Board

Ppc 1218501 Pcb Circuit Board Rev E

Bently Nevada 19195-02-15-11-00-01 Pcb Circuit Board

Det-tronics 225269-001 Pcb Circuit Board Rev E

Nuclear Data 50-1060-09 Pcb Circuit Board

Bently Nevada 19189-02-15 Pcb Circuit Board

General Electric Ge ML517L446G001 Power Supply Board

Nuclear Data ND-MMX 50-1182-04 Pcb Circuit Board

Nuclear Data ND-MIX 50-1156-04 Pcb Circuit Board

703-542 Control Pcb Circuit Board Rev D

Orion 700960 Pcb Circuit Board Rev F

Mvp Machine Vision Products 33079 Pcb Circuit Board Rev A

Partlow 04614702 Pcb Circuit Board Rev L

Nuclear Data ND-IOB 50-1051-12 Pcb Circuit Board

Nuclear Data ND-MMX 50-1182-01 Pcb Circuit Board

Nuclear Data ND-DKI 50-1094-02 Pcb Circuit Board

Yaskawa JANCD-YSF24-E I/o Functional Safety Board Rev B01

Sentry 915-03-56-3 Pcb Circuit Board

United Sciences 1003-0300-01 Signal Processor Pcb Circuit Board

Ctc 1467F73G01 Pcb Circuit Board Rev A

Elgar 943-119-21 Rev D Pcb Circuit Board

Yaskawa JANCD-YSF24-E Dx200 I/o Functional Safety Board Rev B01

Westinghouse 2837A13G02 8NAL8 Pcb Circuit Board Sub 24

Avc Specialists PASTD569 Main Logic Board Rev A

Avc Specialists PASTD569 Main Logic Board Rev E

Benshaw BIPC-300014-01-3 Pcb Circuit Board

Benshaw BIPC-300014 Pcb Circuit Board

Micro Industries 9700931-0014A 5X00105G14 Lvl 1 Pcb Circuit Board

Abb C86-10328 Pcb Circuit Board

Westinghouse 2837A13G01 Pcb Circuit Board Sub 24

Fanuc A20B-2000-0670-04D Pcb Circuit Board

Fanuc A20B-2000-0670 Pcb Circuit Board

Hernis HSS05POWER Pcb Circuit Board Rev K

Pyrotronics 602-2049 V1036K4939 Pcb Circuit Board

Gutor 0P0530-A076 Communication Interface Board Rev 01

Nuclear Data ND-TPM 50-1168-03 Pcb Circuit Board

Beckhoff P24V250W-2A Pcb Circuit Board

Toshiba MSBI4 Pcb Circuit Board

2005023D Digipeater Controller Pcb Circuit Board

Westinghouse 589C517G01 Speed Amplifier Pcb Circuit Board

Herma 097425 Pcb Circuit Board

Rofin Sinar 880-0502-1 Pcb Circuit Board Rev C

Ciurca 16019400002 Pcb Circuit Board

Fanuc A16B-2203-0910/05A Power Supply Circuit Board

Foxboro L0111UU Control Board Pcb Circuit Board Rev A

Diamond Power 343891-1046C Pcb Circuit Board

Diamond Power 343891-1046 Operation Monitor Board

Honeywell 08694600 Measurex Bsc Pcb Circuit Board Rev A

Honeywell 08694600 Measurex Bsc 4-channel Pcb Circuit Board Rev B

Honeywell 09428210 4 Channel Bsc Pcb Circuit Board Rev A

Honeywell 51500166-501 Power Distribution Board

General Electric Ge 1572K16-G701 Position Amplifier Pcb Circuit Board

Beckwith 441-40236 Interface Panel Pcb Board Rev D-2

Reliance 0-54355 Tach Scaling Pcb Circuit Board

Fanuc A16B-2203-0033/02B Pcb Circuit Board

Allen Bradley 1336-L6 Assembly Logic Kit Board

1  Allen Bradley 1336-L6 Assembly Logic Kit Board

Dec M8059-FP Ram Pcb Circuit Board

Fanuc A20B-2900-0900 Pcb Circuit Board

Westinghouse 9700D31G01 Pcb Circuit Board Rev 6

Kajaani 43GD-1-U4430142 Vme-cpu-board Pcb

Rotork 43409-03 Wiq80509-03 00j Indicator Board Module With Display

Sew Eurodrive DFP 21A Profibus Dp Pcb Circuit Board

Cutler Hammer 15-1079-4 Af95 Logic/gate Driver Pcb Circuit Board Rev B

Westinghouse 589C358G01 Alarm & Trip Relay Pcb Circuit Board

Kajaani 43GD1-U4430141 Scpu-board Pcb

Asea DSDO 110 57160001-K Digital Output Board Pcb

Cincinnati Milacron 3-533-0610G Pcb Circuit Board

Fanuc A20B-2100-0761/09B Pcb Circuit Board

Fanuc A20B-2100-0761/06B Control Board Pcb

Fanuc A16B-2201-0110/06A Control Board

Pneumatic Products 1218502 Pcb Circuit Board

Siemens 6ES5304-3UB11 Simatic Interface Module Board

Magnetek 46S03758-0010 Pcb Circuit Board

Cae Electronics 35181 MA101829-01 Differential Amplifier Pcb Circuit Board

Siemens R15B02A238 Power Supply Board

Allen Bradley 634436 Pcb Circuit Board Rev 6

Texas Instruments 2212012-0001E Pcb Circuit Board

Rosemount 3D39122G01 Pcb Circuit Board Rev 8

Industrial Mro 31-004R4 Pcb Circuit Board Rev 4

Etas ES1231.1-A Interface Board

Allen Bradley 634435B-90 Pcb Circuit Board

Allen Bradley 635005 Pcb Circuit Board Rev 3

Jsw MDU-31 JCB93281 Pcb Circuit Board

Hagiwara C-7704-1720C D0880 Output Interface Board

Hagiwara C-7704-1620D DI880 Pcb Circuit Board

Allen Bradley 634435B Pcb Circuit Board

Westinghouse 2822A82G01 Htl Up Dn Counter Pcb Circuit Board Rev 4

Mazak D65UB004233 Pcb Circuit Board

Abb 3HNA003866-001 Pcb Circuit Board

Diamond Electronics 426205-2040 514698-1047 Pcb Circuit Board Rev G

Yaskawa JARCR-XCT01 Pcb Circuit Board Rev B

80-H2009310-90 Control Pcb Circuit Board

Westamp 30066-11 Servo Control Panel Drive Pcb Board

Modcomp 813-300016-001 551-100540-002 Pcb Circuit Board

Modcomp 813-300016-001 551-100540-005 Pcb Circuit Board

Foxboro P0914SD Invensys I/a Series Dcs Integrator B 09 Pcb Circuit Board

Yaskawa JANCD-YI021-E Pcb Circuit Board Rev B01

Allen Bradley 126511 Pcb Circuit Board

Modcomp 813-300016-001D 551-100540-002 Pcb Circuit Board

Festo CAMC-PB547450 Profibus Interface Board

Asea 2668 184-526/7 Pcb Circuit Board

Fanuc A20B-0008-0540/01A Pcb Circuit Board

Eaton 15-871-5 Power Supply Assembly Board Pcb Rev A

Honeywell C-TAF00 Terminal Panel Pcb Board

General Electric Ge 4006L4116AAG001 Silco-5 250vdc/125vdc Converter Board

Nwl D25201V D25189-01 Pcb Circuit Board Rev A

9432385 Under Exc Tn Limit Monitor Pcb Circuit Board

Mitsubishi APUC-01-DWC BY171A449G51 Pcb Circuit Board

Bailey 6640038A1 Flu4-160-series Power Supply Board

General Electric Ge 133D6362G1 Power Integrity Board

Inductoheat 31037-098 Circuit Board

Solidstate Controls 211110 Pcb Circuit Board

Yaskawa JZNC-NIF01-1 Nx100 Control Pcb Board

Yaskawa SGDR-AXA01A Pcb Circuit Board Rev C03

Yaskawa JZNC-NIF01-1 Control Pcb Board

Intermec 056909E-006 Pcb Circuit Board

Abb 3HAC 14757-1/12 Serial Measurement Board Pcb

Fanuc A16B-2100-0200/04C Pcb Circuit Board

Charmilles CT813204D Pcb Circuit Board

Tri-sen 93-2846 93-2817 DM305 Display Board Assembly Rev C

Spx 1231424 Adc Display Board Rev C2

Nuclear Data 50-1094-02 Pcb Circuit Board

Dtc 1403D Controller Pcb Circuit Board Rev F

Nuclear Data ND-DIB 50-1062-09 Pcb Circuit Board

Arvin Diamond 514544 Pcb Circuit Board Rev K

Nuclear Data ND-TPM 50-1168-04 Pcb Circuit Board

Contrex 81000773 Sm810 Transceiver Pcb Circuit Board Rev G

Contrex 81000773 Sm810 Transceiver Pcb Circuit Board Rev L

Contrex 81000773 Sm810 Transceiver Pcb Circuit Board

Westinghouse 84D05452N02 Universal Input Board Rev B

United Sciences 1003-0500-02 Pcb Circuit Board

84DO5867L01 NLN9216A-3 Tone/binary Tc Vor/vox Pcb Circuit Board

Nuclear Data ND-SPM 50-1165-01 Pcb Circuit Board

Nuclear Data ND-SPM 50-1165-00 Pcb Circuit Board

Nuclear Data ND-TPM 50-1168-02 Pcb Circuit Board

Eaton 101073547 Pcb Circuit Board Rev A00

Siemens-allis A1-103-100-504 Motor Control Ciruit Board Rev 06

York PFR-1 031-0090C Power Fault Relay Pcb Board 115v-ac

Contrex 81000773 Sm810 Transceiver Pcb Circuit Board Rev H

Mitsubishi BY171E442G51 OSLA-02-DWC Pcb Circuit Board

Fanuc A16B-3200-0600/06B Pcb Circuit Board

General Electric Ge 117D7726G1 Ld Lm/set Rb A/l Pcb Circuit Board

General Electric Ge 117D7316G1 Spd Cont Ref A/l Pcb Circuit Board

General Electric Ge 117D7783G1 Ld/press Limit Logic Pcb Circuit Board

General Electric Ge 117D7743G1 Lcu Msv/iv Amp A/l Pcb Circuit Board

General Electric Ge 115D2255G1 Vlv Test To Pos Cont Pcb Circuit Board

General Electric Ge 118D1306G1 Sb Sw Cont-2 A/l Pcb Circuit Board

Rofin Sinar 880-0504-1 Pcb Circuit Board

Abb 802A013B-1G1 Pcb Circuit Board

Charmilles CT208132863B Pcb Circuit Board

Charmilles CT8132841A Pcb Circuit Board

1153-113-1 Amplifier Pcb Circuit Board Rev A

85339 85355A-5 Heater Control Board

13046 Window Zero Adjustable Pcb Circuit Board

Diamond Power 350678-000A Analog Input Pcb Board Rev B

1612B45G0003 Pcb Circuit Board

Nuclear Data ND-HDS 50-1155-01 Pcb Circuit Board

United Sciences 1003-0900-01 Pcb Circuit Board

Texas Microsystems C486/25 13291 27379-454 Pcb Circuit Board

Hitachi MBC TYPE 3 HAP-ISC Pcb Circuit Board

Bell-mark EY1305-05-C Carriage Board Pcb

Nuclear Data ND-IOB 50-1051-04 Pcb Circuit Board

Westinghouse 2837A10G04 5NSC31 Pcb Circuit Board

Bently Nevada 45607-01 49670-01 49672-01 Pcb Circuit Board

Dri-air 161102-004 Display Pcb Board

Abb 2668 402-53 Pcb Circuit Board

Electronic Designs E10CH1 Pcb Circuit Board

Astro 81862-003-H 1806 8-bit Microcomputer System Board

6068715A 0711987 Pcb Circuit Board

Tapco M708 Pcb Circuit Board Rev C

Rofin Sinar 880-0504-1 Pcb Circuit Board Rev 1

Eberline 10963-C01D Pcb Circuit Board

Bosch QV60-RGC1 0 811 405 104 Pcb Circuit Board

General Electric Ge 115D2232G1 Early Vlv Actuation Pcb Circuit Board