NI-PXI-GPIB183923F-01全新原装
NI-PXI-GPIB183923F-01全新原装
NI-PXI-GPIB183923F-01全新原装
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。
Leuze Sensor ED 10 #52317
Leuze Sensor GS 754M/V-29/42-502-S12 #52242
Leuze Sensor HRT 96M/P-336W.21-5000-426 #52222
Leuze Sensor LSR 97/2 SE-L #52228
Leuze Sensor LSS 318M #52089
Leuze Sensor RK 318K/P S12 #52224
Leuze Stationary 2D Code Reader VR 2300 S F 100 #52211
Leuze Transmission Transceiver DDLS 200/120.1-50 #52231
Leuze Transmission Transceiver DDLS 200/120.2-50 #52297
Leuze Transmitter ET30-225 #37637
Leviton Plug 4570-C #52620
Leviton Wire Mesh Safety Grip 36263 Appears #30749
Leybold Heraeus PC Board 4 275-0164/A #59093
Leybold Heraeus PC Board 5.320-1534/1i #56614
Leybold Heraeus Vacuum Gauge Controller CM330 #77197
Leybold Inficon Leak Std Gas Canister 701-075-G1 #30004
Leybold Turbo Pump TURBOVAC 35 LS #58711
Leybold Vacuum Filter FS 100-250 #64161
Leybold Vacuum Pump SV16 10980 #48236
Leybold Vacuum Pump SV16 1098049 #57725
Lg Contactor SMC-65P #63245
Lg Programmable Controller G7F-DA2I #11039
Lg Programmable Logic Controller G7L-FUEA #10948
Lg Programmable Logic Controller GDL-TR2C1 #10947
Lh Research Power Supply IM303-122/115A1 Scratch & Dent #59629
Lh Research Power Supply MM64-13Y/35Y/115 #13173
Lh Research Power Supply MML46-1232Y2Y3/115 #56199
Life Line Heating Element 765234A01 #53197
Lift A Loft Service Manual 55-24.0 #70995
Likriktarenhet Transformer LOTK-10 #50108
Limitron 12 Amp Fuse KTK-R-12 #62400
Limitron 30 Amp Fuse KTK-30 #26711
Limitron 5 Amp Fuse KTK-5 #62268
Lin Act Air Cylinder STCC-1.12X0.50-2 #44064
Lincmaster Electric Foot Pedal 632-SC3 #6599
Lincoln Electric 1/4 HP AC Motor D-2J7427 #33752
Lincoln Electric 15 HP AC Motor TEFC #53360
Lincoln Electric 2 HP AC Motor D-2J4824Z8 #33754
Lincoln Electric 2 HP AC Motor D-2J4827C2796 #33747
Lincoln Electric Meter L-6685 #59171
Lincoln Electric PC Board G-1566 #59228
Lincoln Electric PC Board L-6233 #59226
Lincoln Electric PC Board L6237-3 #59154
Lincoln Electric PC Board L6237-5 #59158
Lincoln Electric PC Board L-6580 #59209
Lincoln Industrial PC Board M15215-1 #59173
Lincoln Industrial Pump P30161411110 #17081
Lincoln Industrial Ram Pump 82886 #70791
Linde Gas Lens Nozzle 54N14 #10536
Linemaster Hercules Foot Switch 532-SWH #74496
Lintron Transformer 6341/3 #43726
Lintron Transformer ST-6341 #43725
Lithonia Lighting Light Fixture Wire Guard 3EY66 #38842
Lithonia Lighting Striplight S140 120 LPF #17083
Littelfuse 100 Amp Fuse FLNR-100 #27000
Littelfuse 110 Amp Indicator Fuse FLSR-110-ID #36149
Littelfuse 12 Amp Indicator Fuse FLSR-12-ID #36152
Littelfuse 15 Amp Fuse FLSR-15-ID #26799
Littelfuse 150 Amp Fuse FLSR-150 #36134
Littelfuse 5 Amp Fuse FLSR-5 #23493
Littelfuse 5 Amp Indicator Fuse FLSR-5-ID #36123
Littelfuse 8 Amp Fuse KLKR-8 #26716
Littelfuse 8/10 Amp Fuse CCMR-8/10A #62362
Lmi Milton Roy Dosing Pump A961-65S #60434
Logical Devices MOS EE/EPROM/MICRO Programmer PROMPRO-8X #55596
Logitron Circuit Board L315K #12350
Lorch Venting Safety Valve 20401 #68452
Louis Allis Current Drive Controller MOD 7 Scratch & Dent #45772
Louis Allis Current Drive Controller MOD 7 #45771
Love Controls Controller 326-SP1-SP2 #11040
Love Controls Thermocouple 6 inches long 1848-15X6 Appears #70315
Lovejoy S-Flex Coupling LJ4 #15564
Loweurcpe Heat Band KEBG0060A009A #65078
Ls Industrial Systems Contactor MC-12b #64230
Lube Corp Grease Pump GMS-20-80-CB2-TS-4L-A #72880
Lubriquip Trabon Modu-Flo Pump 521-000-020 #69190
Lubriquip Trabon Modu-Flo Pump 521-000-020 #69191
Lubriquip Trabon Modu-Flo Pump Package 521-301-037 #65181
Lubriquip Trabon Modu-Flow Pump 521-300-180 #69194
Lucent Technologies 1500PS2E #75535
Lucent Technologies Extended Battery Cabinet 101259016-011 #75533
Lucent Technologies Power Supply RM1000HA100 #56379
Lucent Technologies Telephone 8410D01A-003 #20494
Lucifer Solenoid Valve Coil 48 1865A5 F #33903
Lucifer Solenoid Valve Coil F 484990 P33 #33904
Luckytek Circuit Board SI4T-1 #57280
Lumberg Cable RK 50-68 #61759
Lumberg Cable RKWT 4/3-632/10M #64524
Lumberg Cable RST 4-RKT 4-602/2M #44027
Lumberg Cable RST 4-RKT 4-633/1M #64526
Lumberg Connector / Component Kit RKC 50/13,5 #29026
Lumberg Cordset ASB2-RKT 4/3-695/0.3M #55471
Lumberg Distribution Block ASB 4/LED 5/4-12-RS120M/1F #53209
Lumberg Distribution Box ASBS 4-5-S3585 #71413
Lumberg Distribution Box SB8/LED-3 #16582
Lumberg Micro Distribution Block ASBSV6/LED5 #17455
Lumberg Pressure Switch RSC 50/13.5 #31581
Lumonics Drive Card E81Z2151C #32852
Lumonics Power Supply Card E81Z5561C #32864
Lumonics Power Supply Card E81Z5561C #32865
Lung Tang LA-09-01-(V)-135-02-25-01-0-0-0-7 Appears #66591
Lutze Power Supply WRA960-24 #47958
Lyon 9 Drawer Storage Cabinet Drawer Cabinet807 #58807
Lyon Flammable Liquids Storage Cabinet 5445 45GAL #57190
Lytron Heat Exchanger 6320G3 Scratch & Dent #58827
M System Technology Inc Reverse Transmitter UDS-44-F #17729
Mac Solenoid Valve 343G-111D-1 Appears #53061
Mac Valve 224B-111CA #65770
Mac Valve 224B-111CAAA #70310
Mac Valve 35A-BAE-DDAJ-1KD #73846
Mac Valve 45A-FA1-DAAA-3BA #3915
Mac Valve 6213C-000-PM-501DA #69498
Mac Valve 82A-BC-000-TM-DDAP-1DA #58900
Mac Valve Solenoid Valve 313G-111D-1 #54508
Mac Valve Solenoid Valve 45A-GB1-DDBB-1BA #26329
Mac Valve Solenoid Valve 45A-GB1-DDBB-1BA #26268
Mac Valve Solenoid Valve 56C-13-111CA #31237
Mac Valve Solenoid Valve 82A-AC-CPA-TM-DFFP-1DA #52415
Mac Valve Solenoid Valve PME-592DABE #44645
Mac Valve Valve MV-A2B-A311-PM-111DA9 / PME-111DAAG #19121
Mac Valve Valve PME-112DABE #44648
Mac Valve Valve PR65C-12BA #70327
Mac Valves Block852 #60852
Mac Valves Inc Solenoid Valve 82A-AC-CPA-TM-DAAP-2DA #52293
Mac Valves Inc Valve 6313C-000-PM-112DA #7423
Macromatic Relay TR-50522-08 #63316
Macromatic Time Delay Relay SS-61928 Appears #54530
Madison Electric Tachometer Indicator 300 #35728
Madison Tachometer Indicator 200 Scratch & Dent #3144
Madison Tachometer Indicator 200 #3145
Maeda Koki Water Signal MKCG25-4T-T #74653
Magenta Receiver Multiview450 #49369