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。
以下链接皆有货
EATON PKZM0-4 MOTOR PROTECTION CIRCUIT BREAKER RANGE 2.5-4AMP
BENEDIKT JAGER K3-10A00-40 POWER CONTACTOR 10A VOLTAGE 220VAC
SIEMENS 6ES7392-1AJ00-0AA0 Connector Replacement for Siemens S7-300 PLC FAST
SIEMENS 6ES7392-1AJ00-0AA0 Connector Replacement for Siemens S7-300 PLC FAST
TERASAKI ELECTRIC EIN-532 TM-2 CIRCUIT BREAKER SENDER IT
SIEMENS 3RU1126-4AB0 THERMAL OVERLOAD RELAY RANGE 11-16AMP
ENTRELEC C.A.I.S.-E I/V SIGNAL CONVERTER VOLTAGE 24VDC
LS METASOL MC-22B POWER CONTACTOR 22AMP 3POLE VOLTAGE 220VAC
CHNT NR2-93 THERMAL OVERLOAD RELAY RANGE 23-32A
LOVATO BF18 10 D024 POWER CONTACTOR 18A VOLTAGE 24VDC
SCHNEIDER ELECTRIC GV2L22 MAGNETIC CIRCUIT BREAKER 25A
SIEMENS 3SU1900-0FA10-0AA0 BLACK PLASTIC PANEL SEALING PLUG PCS FAST
MITSUBISHI ELECTRIC ST-20 MAGNETIC CONTACTOR 20AMP VOLTAGE 220VAC
TELEMECANIQUE LC1DT20M7 POWER CONTACTOR COIL VOLTAGE 220VAC
OMRON SAO-SS1N CURREN SENSOR VOLTAGE 110VAC
SCHNEIDER RE8RA21FU DELAY TIMER RELAY VOLTAGE 110VAC TO 240VAC
AT11DN Autonics Analog Timer 24-240VDC ( )
AT11DN Autonics Analog Timer 24-240VDC ( )
FUJI ELECTRIC TK-N3 THERMAL OVERLOAD RELAY RANGE 34-50A
ABB CT-AHE ELECTRONIC TIMER RELAY VOLTAGE 24V AC/DC
ENTES MCB-8 MULTIFCTION TIMER VOLTAGE 24VAC TO 220VAC
CUTLER HAMMER MC305ANA3F THERMAL OVERLOAD RELAY RANGE 1.58-2.5AMP
TELEMECANIQUE RE3-TA1314M TIMER TIMING 1.5-30S VOLTAGE 220VAC
SIEMENS 3NA3 130-7Y NH1 HRC FUSE LINK 100AMP 500V 120KA
Omron H3DK-G ELECTRONIC TIMER VOLTAGE 220VAC ()
DANFOSS CTI 25M MOTOR PROTECTION CIRCUIT BREAKER RANGE 10-16AMP
HYDAI ELECTRIC HMT40 AUXILIRY CONTACTOR 10A VOLTAGE 24VDC
TELEMECANIQUE LR2-D THERMAL OVERLOAD RELAY RANGE 23-32AMP
TELEMECANIQUE LX1D6M7 SPARE MAGENTIC COIL VOLTAGE 220VAC
MITSUBISHI ELECTRIC NF32-SVF CIRCUIT BREAKER 15AMP 2POLE 220VAC 7.5KA
SCHNEIDER ABL8MEM24003 POWER SUPPLY IN 100-240VAC OUT24VDC 0.3AMP
SIEMENS 3NA3 132-7Y NH1 HRC FUSE LINK 125AMP 500V 120KA
ABB C511 03-W MULTIFCTION TIMER VOLTAGE 24VAC TO 240VAC
Omron NNB E3JM-R4M4-G Sensors and Switches Photoelectric Sensor 3A 250V
SIEMENS 3UA7021-G THERMAL OVERLOAD RELAY RANGE 4-6.3AMP
TOGAMI ELECTRIC PAK-8JS 80 AUXILIRY CONTACTOR 8NO VOLTAGE 110VAC
TELEMECANIQUE LRD1521 THERMAL OVERLOAD RELAY RANGE 12-18AMP
SIEMENS 3RT1023-1AP04 POWER CONATCTOR 16A VOLTAGE 220VAC
SIEMENS 3RU1126-4CD0 THERMAL OVERLOAD RELAY RANGE 17-22AMP
SCHNEIDER LC1D123M7 POWER CONTACTOR 12A VOLTAGE 220VAC
SCHNEIDER LC1D12 F7 POWER CONTACTOR 12A VOLTAGE 110VAC
SIEMENS 3UA59 00-1G THERMAL OVERLOAD RELAY RANGE 4-6.3AMP
ABB CT-MBS.22S ELETRONIC TIMER TIMING 0.05S-300H VOLTAGE 24-240VAC/24-48VDC
SCHNEIDER ELECTRIC LRE21 THERMAL OVERLOAD RELAY RANGE 12-18A
SCHNEIDER ELECTRIC LA2KT2U TIMER TIMING 1S-30S VOLTAGE 110-240VAC
SIEMENS 3RP1576-1NP30 TIMER TIMING 3S-60S VOLTAGE 220VAC/24VDC
CROUZET EUL 84 572 020 VOLTAGE 24VDC
HAGER EZN001 ELECTRONIC TIMER TIMING 0.1S-1H VOLTAGE 12-230VAC/12-48DC
ABB SK1-11 1SAM201903R1001 AUXILIRY CONTACT PCS
TELEMECANIQUE LC1D0910G6 POWER CONTACTOR 9A VOLTAGE 110VAC
TELEMECANIQUE LC1D0910G6 POWER CONTACTOR 9A VOLTAGE 110VAC
IDEC GT3A-3AF20 ELECTRONIC TIMER VOLTAGE 100-240VAC
IDEC GT3A-3AF20 ELECTRONIC TIMER VOLTAGE 100-240VAC
MITSUBISHI ELECTRIC ST-21 MAGNETIC CONTACTOR 21AMP VOLTAGE 440VAC
Omron 61F-GP-N8 61FGPN8 AC220V Floatless Level Switch
Omron 61F-GP-N8 61FGPN8 AC220V Floatless Level Switch
SIEMENS 3UA5200-1G THERMAL OVERLOAD RELAY RANGE 4-6.3AMP
OMRON H3M ELECTRONIC TIMER TIMING 1S-10MIN VOLTAGE 110VAC
SIEMENS 3TF41 22-0AP0 POWER CONTACTOR 12AMP VOLTAGE 220VAC
SIEMENS 3UA50 00-1G THERMAL OVERLOAD RELAY RANGE 4-6.3AMP
DANFOSS CI9 POWER CONTACTOR 9AMP 3POLE VOLTAGE 110VAC
OMRON H3CR-A TIMER TIMING 1.2S-300H VOLTAGE 24-48VAC/DC
OMRON H3CR-A TIMER TIMING 1.2S-300H VOLTAGE 24-48VAC/DC
ABB TA25DU-14 THERMAL OVERLOAD RELAY RANGE 10-14AMP
DELTA SYNC POWER SUPPLY INPUT 100-240VAC OUTPUT 24VDC 1.25A
SIEMENS 3RU1136-4BB0 THERMAL OVERLOAD RELAY RANGE 14-20A
SIEMENS 3RB2026-1QB0 THERMAL OVERLOAD RELAY RANGE 6-25AMP
CROUZET S2H ELECTRNIC TIMER VOLTAGE 220VAC
TOYO KEIKI AG-I-SD CURRENT TRANSDUCER VOLTAGE 24VDC
Telemecanique LR2K0307 Thermal Overload Relay 1.2 - 1.8 A
MEAN WELL MDR2024 24V Power Supply ()
SCHNEIDER LC1D12BD POWER CONTACTOR COIL VOLTAGE 24VDC
LS GMC-30P2 MAGNETIC CONTACTOR COIL VOLTAGE 220VAC ( )
FUJI MS4SA-AP TIMER TIME RANGE 0.6S TO 60H VOLTAGE 100-240VAC
MITSUBISHI TH-K60 THERMAL OVERLOAD RELAY RANGE 30-40AMP
MITSUBISHI S-N25 MAGNETIC CONTACTOR 25AMP VOLTAGE 110V AC
SIEMENS 6GK1901-1FC00-0AA0 SIMATIC NET IE FC OUTLET CABLING KIT
SPRECHERSCHUH CZE3-11 180S ADD ON BLOCK TIMER ( )
OMRON H3CR-A-315 ELECTRONIC TIMER VOLTAGE 100-240VAC
HIQUEL TM16 MULTIFCTION TIMER VOLTAGE 110-240VAC ()
SCHNEIDER LC1DT20F7 POWER CONTACTOR COIL VOLTAGE 110VAC
CUTLER HAMMER OB 16 MAGNETIC CONTACTOR 16AMP VOLTAGE 110VAC
CUTLER HAMMER MC305ANA2C THERMAL OVERLOAD RELAY RANGE 0.47-0.75AMP
CUTLER HAMMER MC305ANA3D THERMAL OVERLOAD RELAY RANGE 0.72-1.14AMP
EATON PKZM0-1 MOTOR PROTECTION CIRCUIT BREAKER RANGE 0.63-1AMP
FURNAS 45EG20AJ MAGNETIC CONTACTOR 20A 2POLE VOLTAGE 24VAC
LOVATO RF38 1400 THERMAL OVERLOAD RELAY RANGE 9-14A
AUTONICS AT8N ELECTRONIC TIMER VOLTAGE 100-240VAC/24-240VDC
SIEMENS 3TH43 64-0A AUXILIRY CONTACTOR COIL VOLTAGE 220VAC
ALLEN BRADLEY 193-B1F1 THERMAL OVERLOAD RELAY RANGE 3.7-12AMP
HYDAI HITH22H N0022R THERMAL OVERLOAD RELAY RANGE 16-22A
SCHNEIDER RE17LCBM DELAY TIMER VOLTAGE 24-240VAC
MITSUBISHI ELECTRIC -TR4AN ON DELAY TIMER ADD ON CONTACTOR 0.1S-60S
FUJI ELECTRIC SC-3N (65) CONTACTOR SPARE KIT SET
OMRON UL110A08-C 5PIN RELAY CARD VOLTAGE 110VAC 8 RELAYS
FUJI TK-4N THERMAL OVERLOAD RELAY RANGE 45-67AMP ()
FUJI ELECTRIC TR-2N THERMAL OVERLOAD RELAY RANGE 18-26A
HYDAI HITH22H THERMAL OVERLOAD RELAY RANGE - 1.1A TO 1.6A
OMRON WLCA2-2-N CIRCUIT LIMIT SWITCH
FUJI ELECTRIC SC-05 MAGNETIC CONTACTOR 13A VOLTAGE 110VAC
Finder 95.05 Socket w/ Relay 40.52S 99.02.9024.99 PCS
SCHNEIDER ELECTRIC LC1D09 Q7 POWER CONTACTOR 9AMP VOLTAGE 440VAC
SCHNEIDER ELECTRIC LC1D09 B7 POWER CONTACTOR 9AMP VOLTAGE 24VAC
SCHNEIDER ELECTRIC LC1D09 P7 POWER CONTACTOR 9AMP VOLTAGE 220VAC
SCHNEIDER ELECTRIC LC1D09 P7 POWER CONTACTOR 9AMP VOLTAGE 220VAC
OMRON TL-F20ME2 PROXIMITY SWITCH VOLTAGE 10-30VDC
OMRON H7AN-T6M COTER METER VOLTAGE 100-240VAC
TELEMECANIQUE ABR-1S111F RELAY MODULE VOLTAGE 110VAC
SIEMENS 3TF43 22-0AN2 POWER CONTACTOR 18A VOLTAGE 220VAC
SCHNEIDER GV2ME16 MOTOR PROTECTION CIRCUIT BREAKER RANGE 9-14AMP
SCHNEIDER GV2ME16 MOTOR PROTECTION CIRCUIT BREAKER RANGE 9-14AMP
GSTAR SMC-15P MAGNETIC CONTACTOR 15AMP 3POLE VOLTAGE 110VAC
SCHNEIDER ELECTRIC LADN 10 AUXILIARY CONTACT BLOCK LOT OF 10 PCS
Stahl 9170/20-10-11 Switching Repeater ()
ABB CT-ERS.22 ELECTRONIC TIMER RELAY VOLTAGE 230V AC
EATON ZB65-10 THERMAL OVERLOAD RELAY RANGE 6-10AMP
ABB OT80F3 Disconnect Switch/Load breaker Switch 80Amp
SIEMENS 3NA3 124-7Y NH1 HRC FUSE LINK 80AMP 500V 120KA
SIEMENS 3VM9217-0GK00 ROTARY OPERATOR WITH SHAFT STUB 3VM 250AMP
SQUARE D 31041-400-42 MAGNETIC SPARE COIL VOLTAGE 110-120VAC
SQUARE D 31041-400-42 MAGNETIC SPARE COIL VOLTAGE 110-120VAC
DANFOSS CI9 MAGNETIC CONTACTOR 9AMP COIL VOLTAGE 24-29VAC
HYDAI ELECTRIC UMT31 AUXILIRY CONTACTOR COIL VOLTAGE 110VDC
FUJI ELECTRIC SC-E05P/G MAGNETIC CONTACTOR VOLTAGE 220VAC
SIEMENS 3RT-1AL20 POWER CONTACTOR 9AMP VOLTAGE 220VAC
SCHNEIDER ELECTRIC GV2P22 MOTOR PORTECTION CIRCUIT BREAKER RANGE 20-25A FAST
EATON DILM12-10 POWER CONTACTOR 12A VOLTAGE 220VAC
EATON ZB12-16 THERMAL OVERLOAD RELAY RANGE 12-16A
OMRON H3CR-G8EL ELECTRONIC TIMER TIMING 6S-120S VOLTAGE 110VAC
Schneider Electric Auxiliary Contact Block GVAE1 Pack of 10Pcs
Omron S82K05024 Power Supply Module ( )
Omron S82K05024 Power Supply Module ( )