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。
FG ISS/HVME-1A PCB CARD
FG ISS/HVME-1A PCB CARD
FG ISS/HVME-1A PCB CARD
FHF FUNKEHUSTER FERNSIG EXRESISTTEL 11286101 WEATHER,EXPLOSION PROOF TELEPHONE
FHF FUNKEHUSTER FERNSIG EXRESISTTEL 11286101 WEATHER,EXPLOSION PROOF TELEPHONE
FIELD ELECTRONICS 21453 I/O CARD
FIELD ELECTRONICS 21453 I/O CARD
FIELD ELECTRONICS 21453 I/O CARD
FIELD ELECTRONICS 21453 I/O CARD
FIELD ELECTRONICS 21730 I/O CARD 2431
FIELD ELECTRONICS 21730 I/O CARD 2431
FIELD ELECTRONICS 2622 I/O CARD
FIELD ELECTRONICS 2622 I/O CARD
FIELD ELECTRONICS 2622 I/O CARD
FIELD ELECTRONICS 2622 I/O CARD
FIELD ELECTRONICS PS2200 I/O CARD
FIELD ELECTRONICS PS2200 I/O CARD
FINCOR 1039555-G1 LINEAR ACCEL BOARD 1039556 1039555G1
FINCOR 1039555-G1 LINEAR ACCEL BOARD 1039556 1039555G1
FINCOR 1039556 ACCELARTOR BOARD 1039555-G1
FINCOR 1039556 ACCELARTOR BOARD 1039555-G1
FINCOR 1039566-G1 METER BOARD 1039567 1039566G1
FINCOR 1039566-G1 METER BOARD 1039567 1039566G1
FINCOR 1039572-G1 POWER SUPPLY BOARD 1039573 1039572G1
FINCOR 1039572-G1 POWER SUPPLY BOARD 1039573 1039572G1
FINCOR 1039574-G1 CONTROL BOARD 1039575 1039574G1
FINCOR 1039574-G1 CONTROL BOARD 1039575 1039574G1
FINCOR 1039577 FEEDBACK BOARD 1043618-G1
FINCOR 1039577 FEEDBACK BOARD 1043618-G1
FINCOR 1039582-G1 TRIGGER BOARD 1039582-G01 1039582G1
FINCOR 1039582-G1 TRIGGER BOARD 1039582-G01 1039582G1
FINCOR 1039582-G1 TRIGGER BOARD 1039582-G01 1039582G1
FINCOR 1039582-G1 TRIGGER BOARD 1039582-G01 1039582G1
FINCOR 1039756-G01 FEEDBACK BOARD 1039756G01
FINCOR 1039756-G01 FEEDBACK BOARD 1039756G01
FINE SODICK CPU-OIF PC BOARD CPUOIF
FINE SODICK CPU-OIF PC BOARD CPUOIF
FINE SODICK CPU-OIF PC BOARD CPUOIF
FINE SODICK CPU-OIF PC BOARD CPUOIF
FINE SODICK CPU-OIF PC BOARD CPUOIF
FINE SODICK CPU-OIF PC BOARD CPUOIF
FINE SODICK EMC-O2F PC BOARD EMCO2F
FINE SODICK EMC-O2F PC BOARD EMCO2F
FINE SODICK EMC-O2F PC BOARD EMCO2F
FINE SODICK EMC-O2F PC BOARD EMCO2F
FINE SODICK EMC-O2F PC BOARD EMCO2F
FINE SODICK EMC-O2F PC BOARD EMCO2F
FINE SODICK GEM-OIF PC BOARD GEMOIF
FINE SODICK GEM-OIF PC BOARD GEMOIF
FINE SODICK GEM-OIF PC BOARD GEMOIF
FINE SODICK GEM-OIF PC BOARD GEMOIF
FINE SODICK I/O-O2D PC BOARD IOO2D
FINE SODICK I/O-O2D PC BOARD IOO2D
FINE SODICK I/O-O2D PC BOARD IOO2D
FINE SODICK I/O-O2D PC BOARD IOO2D
FINE SODICK I/O-OIE PC BOARD IOOIE
FINE SODICK I/O-OIE PC BOARD IOOIE
FINE SODICK I/O-OIE PC BOARD IOOIE
FINE SODICK I/O-OIE PC BOARD IOOIE
FINNAQUA 77700051F PC BOARD FF-E RTWDS
FINNAQUA 77700051F PC BOARD FF-E RTWDS
FIRE SENTRY SYSTEMS 2203-CCA CARD CONTROLLER 2203CCA
FIRE SENTRY SYSTEMS 2203-CCA CARD CONTROLLER 2203CCA
FIRE SENTRY SYSTEMS 2203-CCA CARD CONTROLLER 2203CCA
FIRE SENTRY SYSTEMS 2203-CCA CARD CONTROLLER 2203CCA
FIRING CIRCUITS 1579-0157 PC BOARD 15790157
FIRING CIRCUITS 1579-0157 PC BOARD 15790157
FIRING CIRCUITS 1870-0414 LOGIC BOARD 18700414
FIRING CIRCUITS 1870-0414 LOGIC BOARD 18700414
FISHER 30B3III CIRCUIT BOARD 30B2786X042 TYPE 5190
FISHER 30B3III CIRCUIT BOARD 30B2786X042 TYPE 5190
FISHER CONTROLS 40A0386X012 PC BOARD 40A0386X012-F
FISHER CONTROLS 40A0386X012 PC BOARD 40A0386X012-F
FISHER ROSEMOUNT 12P1731X082 INPUT CARD VE4003S5B1 8CH THERMOCOUPLE CJC
FISHER ROSEMOUNT 12P1731X082 INPUT CARD VE4003S5B1 8CH THERMOCOUPLE CJC
FISHER ROSEMOUNT CL6862X1-A2 INTERFACE BOARD 41B7285X022-4 CL6842X1A2
FISHER ROSEMOUNT CL6862X1-A2 INTERFACE BOARD 41B7285X022-4 CL6842X1A2
FISHER ROSEMOUNT CP6701X1-FA6 CONVERTER CARD CP6701X1FA6
FISHER ROSEMOUNT CP6701X1-FA6 CONVERTER CARD CP6701X1FA6
FISHER ROSEMOUNT CP7202X1-A1 POWER CONV CARD CP7202X1A1 46A4281X012-N
FISHER ROSEMOUNT CP7202X1-A1 POWER CONV CARD CP7202X1A1 46A4281X012-N
FISHER ROSEMOUNT DELTA V 12P2062X022 PROFIBUS DP CARD KJ3007X1-BA1 REV B
FISHER ROSEMOUNT DELTA V 12P2062X022 PROFIBUS DP CARD KJ3007X1-BA1 REV B
FISHER ROSEMOUNT DELTA V 12P2062X022 PROFIBUS DP CARD KJ3007X1-BA1 REV C
FISHER ROSEMOUNT DELTA V 12P2062X022 PROFIBUS DP CARD KJ3007X1-BA1 REV C
FISHER THERMO ELECTRON 100539-00 DIGITAL OUTPUT BOARD 10053900
FISHER THERMO ELECTRON 100539-00 DIGITAL OUTPUT BOARD 10053900
FLEX-KLEEN T5205 TIMER BOARD 120V
FLEX-KLEEN T5205 TIMER BOARD 120V
FLEX-KLEEN T5210 TIMER BOARD 120V
FLEX-KLEEN T5210 TIMER BOARD 120V
FLOTEK MB187A MAIN CIRCUIT BOARD WMU18 WITH IR-800A REMOTES FULL KIT
FLOTEK MB187A MAIN CIRCUIT BOARD WMU18 WITH IR-800A REMOTES FULL KIT
FLOW SENSOR PC BOARD 01337_11.PCB
FLOW SENSOR PC BOARD 01337_11.PCB
FLOW TECHNOLOGY LFA-307 PC BOARD LFA307 REPAIRED
FLOW TECHNOLOGY LFA-307 PC BOARD LFA307 REPAIRED
FLUKE 446994 PC BOARD
FLUKE 446994 PC BOARD
FLUKE 446994 PC BOARD
FLUKE 446994 PC BOARD
FLUKE 642496 THERMOCOUPLE SCANNER BOARD REV K
FLUKE 642496 THERMOCOUPLE SCANNER BOARD REV K
FLUKE 642496 THERMOCOUPLE SCANNER BOARD REV L
FLUKE 642496 THERMOCOUPLE SCANNER BOARD REV L
FLUKE 642496 THERMOCOUPLE SCANNER BOARD REV M
FLUKE 642496 THERMOCOUPLE SCANNER BOARD REV M
FLUKE 642546 I/O BOARD REV H
FLUKE 642546 I/O BOARD REV H
FLUKE 80PK-8 PIPE CLAMP THERMOCOUPLE
FLUKE 80PK-8 PIPE CLAMP THERMOCOUPLE
FLUKE 80PK-8 PIPE CLAMP THERMOCOUPLE
FLUKE 80PK-8 PIPE CLAMP THERMOCOUPLE
FLYNN CONTROLS TYPE IBA 421/D BOARD 117903 IBA421D
FLYNN CONTROLS TYPE IBA 421/D BOARD 117903 IBA421D
FLYNN CONTROLS TYPE IBA 421/D BOARD 117903 IBA421D
FLYNN CONTROLS TYPE IBA 421/D BOARD 117903 IBA421D
FM1062P2A2 POWER SUPPLY
FM1062P2A2 POWER SUPPLY
FMC KONGSBERG SUBSEA PCB PLMT160 ARTWORK REV A XX-0001004468 / FAST SHIP
FMC KONGSBERG SUBSEA PCB PLMT160 ARTWORK REV A XX-0001004468 / FAST SHIP
FMC KONGSBERG SUBSEA PCB PLMT160 ARTWORK REV A XX-0001004468 / FAST SHIP
FMC KONGSBERG SUBSEA PCB PLMT160 ARTWORK REV A XX-0001004468 / FAST SHIP
FMC KONGSBERG SUBSEA PCB PLMT160 ARTWORK REV A XX-0001004468 / FAST SHIP
FMC KONGSBERG SUBSEA PCB PLMT160 ARTWORK REV A XX-0001004468 / FAST SHIP
FORMA SCIENTIFIC 190370 CONTROL BOARD 38522 4488410 MDS-01 180151
FORMA SCIENTIFIC 190370 CONTROL BOARD 38522 4488410 MDS-01 180151
FORMAX D-15273 MATRIX BOARD D15273
FORMAX D-15273 MATRIX BOARD D15273
FORMAX D-26007-A SAFETY RELAY BOARD D26007A
FORMAX D-26007-A SAFETY RELAY BOARD D26007A
FORMAX D-26012-A SCALE PC BOARD REV. A, D26012A
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