福建中立恒自动化设备有限公司
目前,世界上有200多个厂家生产可编程序控制器产品,厂家有德国的西门子,美国的Rockwell(AB)、通用(GE),日本的三菱、欧姆龙,法国的施耐德等。
可编程序控制器总的发展趋势是向高集成度、小体积、大容量、高速度、易使用、高性能方向发展。具体表现在以下几个方面:
(1)向小型化、专用化、低成本方向发展
20世纪80年代初,小型PLC在价格上还高于小系统用的继电器控制装置。随着微电子技术的发展,新型器件大幅度的提高功能和降低价格,使PLC结构更为紧凑,功能不断增加,将原来大、中型PLC才有的功能移植到小型PLC上,如模拟量处理、数据通讯和复杂的功能指令等,但价格不断下降,真正成为继电器控制系统的替代产品。
(2)向大容量,高速度方向发展
大型PLC采用多微处理器系统,有的采用32位微处理器,可同时进行多任务操作,处理速度提高,特别是增强了过程控制和数据处理的功能。另外,存储容量大大增加。
(3)与计算机联系密切
从功能上看,PLC不仅能完成逻辑运算,且计算机的复杂运算功能在PLC中也进一步得到利用,从结构上看,计算机的硬件和技术越来越多地应用到PLC;从语言上看,PLC己不再是单纯用梯形图语言,而且可用多种语言编程,如类似计算机汇编语言的语句表,甚至可直接由计算机语言编程;在通讯方面,PLC与计算机可直接相连并进行信息传递。
(4)发展多样化
可编程序控制器发展的多样化体现在3个方面:产品类型、编程语言和应用领域。
(5)模块化
PLC的扩展模块发展迅速。功能明确化、专用化的复杂功能由专门模块来完成。主机仅仅通过通讯设备向模块发布命令和测试状态,这使得PLC的系统功能进一步增强,控制系统设计进一步简化。
(6)网络与通讯能力增强
计算机与PLC之间以及各个PLC之间的联网和通讯的能力不断增强,使用工业网络可以有效地节省资源、降低成本、提高系统可靠性和灵活性,致使网络的应用有普遍化的趋势。
(7)多样化与标准化
生产PLC产品的各厂家都在大力度地开发自己的新产品,以求占据市场的更大份额。因此产品向多样化方向发展,出现了欧、美、日多种流派。与此同时,为了推动技术标准化的进程。一些国际性组织,如国际电工委员会(IEC)不断为PLC的发展制定一些新的标准,如对各种类型的产品作一定的归纳或定义,或对PLC未来的发展制定一种方向或框架。
(8)工业软件发展迅速
与可编程序控制器硬件技术的发展相适应,工业软件的发展非常迅速,它使系统应用更加简单易行,大大方便了PLC系统的开发人员和操作使用人员。
可编程序控制器的输出信号类型可以是开关量、模拟量和数字量。输出单元从广义上分包含两部分:一是与被控设备相连接的接口电路,另一部分是输出的映像寄存器。
PLC运行时CPU从输入映像寄存器读取输入信息并进行处理,将处理结果放到输出映像寄存器。输出映像寄存器由输出点相对应的触发器组成,输出接口电路将其由弱电控制信号转换成现场需要的强电信号输出,以驱动电磁阀、接触器、指示灯等被控设备的执行元件。
以下链接皆有货
BASLER Scan Camera A202K
BASLER VISION TECHNOLOGIES A102K
BASLER VISION TECHNOLOGIES A102K WITH CABLES
BASSO HA90-A1 AIR HAMMER KIT
BASTUCK CROWN WHEEL & PINION D15MGM/3.555:1 - 2072
BATTERY BREAKER MOTOR OPERATOR PSU BOARD 640-4730J-Z REV12
BAUER KOMPRESSOREN FILLING VALVE WITH SAFETY RELIEF VALVE 225 BAR
BAUMANN 2400 14PSI 1-1/2"
BAUMANN 24588C DVC6200F 5-15PSI
BAUMANN 51208S DVC6010 30VDC 4-13PSI
BAUMANN 54-84161SA DVC6010 30VDC 5-15PSI
BAUMER ELECTRIC DI 12.82.01/1 NAMUR INDUCTIVE PROXIMITY SENSOR
BAUMER ELECTRIC IFR 12.26.15/K715 PROXIMITY SENSOR
Baumer Electric Proximity Switch Sensor IWRM 30U9501
BAUMER FLEXTEMP ISO UNIVERSAL TRANSMITTER
BAUMER FSAM 08D9002/S35 THROUGH BEAM SENSOR
BAUMER HOG10D1024I 9-30VDC
BAUMER IFRM 12P17G3/L INDUCTIVE SENSOR
BAUR ELEKTRONIK ISN 42 CONTROLLER 4-20MA
BAY ABRASIV 0408GRINDING WHEEL
BAY ABRASIV 507320 GRINDING WHEEL
BAYSIDE PRECISION GEARHEAD NE34-020 RATIO 20:1,COMPUMOTOR S83-62-M0
BAYSIDE RA115-005
BAYSIDE RA115-030-LB
BAYSIDE RA90-100
BBC BROWN BOVERI GHR 512 0000 VO OUTPUT MODULE RELAY VDE0160
BBC TYPE UT481 PCB
BBV CCTV RX45X/WBX MKMULTIPROTOCOL AC RECEIVER
BCD TORINO 2719 BL FUEL PUMP
BCH ELECTRIC RG3-8T POWER FACTOR CONTROLLER 3A 250V
BCI BF060-005-L1-P2 PLANETARY REDUCER
BD LOOPS #EL 36-100 PREFORMED DIRECT BURIAL INDUCTANCE LOOP '6 X 12' LOOP
BEAUTIFUL RARE IC WHITE CERAMIC GOLD PGA CHIP AMI 7405KDT fd2j19
BECK 11-153-144656-01-01 120V
BECK 11-153-144656-01-02 120V
BECK 20-3300-12 HANDSWITCH ASSEMBLY
BECKER 80/4-90EHBWU 6292606 230V 5.3A
BECKHOFF AC Servo Motor AM3022-1C01-0000
BECKHOFF AM3022-0C30-0000 SERVO MOTOR
BECKHOFF AM3024-0C30-0000 SERVO MOTOR
BECKHOFF AM3024-0D31-0000 SERVO MOTOR ,AS PHOTOS, CLEAN
BECKHOFF AM8042-0F11-0000 HG+140B-MF2-50-0G1-1S10-AM80400V 4.1A
BECKHOFF AX2003-AS SERVO DRIVE
BECKHOFF AX2090-B110 BOARD
BECKHOFF AX5106-0000 SERVO DRIVER
BECKHOFF AX5203-0000 SERVO DRIVER
BECKHOFF BK3120,KL1052 [6EA],KL2622 [6EA],KL3002 [6EA],KL4032 [3EA],KL9010
BECKHOFF BK5120 CANopen BUS coupler
BECKHOFF BK5200, DeviceNet Bus Coupler, #1631AP
Beckhoff BK5200, KL1114, KL1488, KL1408, KL2134, KL2612, KL2134, KL2488, KL9010
Beckhoff BK5200, KL3052 (5X) KL1104 (2X) KL9110, KL2114 (7X) KL9010,
BECKHOFF BK5220,KL2622 2EA,KL2184 3EA,KL3064,KL3054,KL9010
BECKHOFF C6920-0010 CORE DUO 2.00 GHz INDUSTRIAL PC.
BECKHOFF CP6902-0001-0000 EXCELLENT
BECKHOFF DevuceNet coupler BK5220, KL2408, KL1408, KL3102, KL9010, BOX A #108A9
BECKHOFF DevuceNet coupler BK5220, KL2408, KL1408, KL3464, KL4004, BOX A #108A10
BECKHOFF DevuceNet coupler BK5220, KL2408, KL1408, KL3464, KL4004, BOX A #108A10
BECKHOFF EL6900 TWINSAFE LOGIC SAFETY MODULE 34140504
BECKHOFF KL3052, LOOP-POWERED INPUT TERMINAL 2-CHANNEL 4-20, #1624T4
Beckhoff KM1012 Bus Terminal Module 16 Channel Digital Input
BECKHOFF MODULE KL1114 8EA, KL2134 9EA, KL9010
BECKHOFF PC C5102-0030,B3945-0.94-BECKHOFF ATX CB1051,CPU T2500 2.00GHz
Beckhoff Servo Motor AM3051-0E31-0000
Beckhoff Servo Motor, AM8121-0F21-0000 & ZK4704-0421-2100, #154G1
BECKMAN COULTER A49945 REV:AG STEPPER MOTOR CONTROLLER BOARD
BECKMAN COULTER B13284 ULTRASONIC DRIVER BOARD
BECKMAN COULTER I/O BOARD 7597B REV 03
BECTON-DICKINSON 332300,332320 POWER DISTRIBUTION BOARD
BECTON-DICKINSON DAQ,10 CHANNEL 33179110,3317911SCH BOARD
BEG MINI-ATX MANAO03
BEHNCKE EWT 80-70 HEATING ELEMENT I-90360
BEHR THOMSON K1 THERMOSTAT X2 09071100
BEI Kimco Magnetics Division LA28-22-003Z
BEI RIS15C-0256 ENCODER 817-05-1100
BEI SYSTEM COMPANY KIMCO MAGNETIC DIVISION LINEAR ACTUATOR LA14-15A 9507
BEI SYSTEM COMPANY KIMCO MAGNETIC DIVISION LINEAR ACTUATOR LA14-15A 9507
BEKA ASSOCIATES BR385 INTRINSICALLY SAFE AUDIBLE SOUNDER
BEKA BA326B 4/20MA LOOP POWERED INDICATOR, INTRINSICALLY SAFE, BARGRAPH
BEL-ART 21200R, GLYTHERM-1 THERMOMETER RANGE -30/120F, 57,
BEL-ART GLOVE BOX 8". O.D. IRIS PORT ENTRY, H50025-0020, H500250020,
Belden YM46375-008-1000, YM46375 008 (gry) U1000 Ft 305 MTR, 22Awg,
BELL MARK EY3501
Bellco Carrier Magnetic Stirrer 7765-06005, 115V/60Hz/12A Rack D #D50
BELLOFRAM 900-072-000 S 36-F-SM-H7-6.8-6.00
BELLOW KSM-2914-2833, B301326-01, B30132601,KSM29142833,
BELLOW KSM-3312-2851, 0003-001007 REV KSM33122851,
BELT-WAY SCALES BWINT 100-240VAC 1A
BEMAC US31 QJN0024 FLICKER CIRCUIT BOARD
BENDER AGH520S COUPLING DEVICE B913033
BENDIX 229859 QR-1 QUICK RELEASE AIR VALVE
BENDIX STROKE AIR DISC BRAKE CHAMBER K132352BXW - 1PSI
BENDIX STROKE AIR DISC BRAKE CHAMBER K132352BXW - 1PSI
Bendix/King KMA 24/24H, Audio Test Panel
BENEDIKT & JAGER CONTACTOR K3-18ND01 AC3 400V~ 18A
BENEDIKT & JAGER K2-09A00 CONTACTOR 24VDCPOLE 25A K2-09A fd2H11
BENKAN SCV PCTFE-SEAT 316LE 10K-1/4" YZ3700 LOT OF 5
BENSHAW BIPC-300016-01 REV.(AS PICTURED)
BENSHAW RSI010SX4B 380-460V 19.7/16.3A
BENSHAW RSI015SX4B 380-460V 30.9/25.8A
BENSHAW RSI020SX4B 380-460V 40.0/33.3A
BENSHAW RSI020SX4B 380-460V 40.0/33.3A
BENSHAW RSI025SX6B 600V 33.4A
BENTLY 3300/16-02-XX-01-00-00-00
BENTLY NEVADA 3300/03 89998-01
BENTLY NEVADA 3500
BENTLY NEVADA 3500/22
BENTLY NEVADA 3500/22 146031-01
BENTLY NEVADA 3500/22M
BENTLY NEVADA 3500/22M 138607-01
BENTLY NEVADA 3500/53
BENTLY NEVADA 3500/93
BEP PRO INSTALLERSTUD BUS BAR 650A - 50VDC
BEPE ELEKTRONIK EL111XA PCB
BERENDSEN FLUID POWE F18-211-B2UB
BERGER LAHR IFE71/2DP0-DS/-QDI54/1-016KPP54,NEUGART GEARHEAD PLE 40
BERGER LAHR IFE71/2DP0-DS/-QDI54/G9016KPP54,NEUGART GEARHEAD WPLE 40
BERGER LAHR RDM 264/L8A MOTOR
BERGER LAHR RSM50/8VK 220V 375 RPM SYNCHRONOUS MOTOR & 1:25 GEAR BOX ad1L2
BERGER LAHR SER31122/4L7SS0CO 0058411070134 480VAC 3.6A
BERGER LAHR SER31122/4L7SS0CO 0058411070134 NSFS
BERGER LAHR VRDM3913/50LWCEB MOTOR,MAYR 6NM ENCODER
BERGHOF CANTROL QDIO 16/16-0,5 DIGITAL I/O EXTENSION MODULE
BERGHOF RDIO 8/24-0,5 REMOTE I/O MODULE
BERGSTROM 1000097666 WIRE HARNESS
BERGSTROM 1000396423 WIRE HARNESS STTT 12V HVAC
BERGSTROM 660776 EVAPORATOR AND HEATER WIRING HARNESS FOR KENWORTH
BERGSTROM 660925 HEATER WIRING HARNESS
Berkeley Varitronics Tortoise Multi-Band Transmitter Dual Wideband
BERKER 2875 ROTARY DIMMER FOR INCANDESCENT AND HALOGEN LAMPS
BERNSTEIN F1-U2Z, F1U2Z, 606.1200.003, Bernstein Foot Switch, SHPSAMEDAY #1179M
BERTHOLD TECHNOLOGIES LB6666-1 80633 PA-50016407
Berührungsschutz muss DK 0,2, 9619043, 0570-2-6, 15752901/10/EMB,