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PLC由哪几部分硬件组成？
PLC的硬件一般由主机、I/O扩展机及外部设备组成。
（1）主机包括：微处理器（MPU）。常用的微处理器有：Z80A、8085、M6800、M6809、8086、M68000。单片机有：8039、8031、M6801。
存储器：PLC的存储器用于存储程序和数据，一般采用ROM或EPROM。
I/O接口：I/O接口是主机与外部设备、I/O模块等的连接部件，用于扩弃PLC总线的驱动能力输入输出点数。
（2）电源：电压范围在160VAC-260VAC。
（3）输入/输出模块：用于调理输入输出信号，对输入信号进行滤波、隔离、电平转换等。包括直流开关量输入模块，交流开关量输入模块，直流开关量输出模块，交流开关量输出模块。
（4）功能模块：包括A/D模块和D/A模块，温度传感器模块，高速计数模块，PID模块，远程I/O模块，通讯模块。
（5）扩展口
（6）编程器
（7）其他外设：打印机，显示器。
Fafnir IR Torrington 2 Flange Bolt, SCJT 5/8 Flange Mount Bearing NWOB
Fafnir IR Torrington SCJT 5/8, 2 Bolt Flange, Max RPM 7370 Flange Mount Bearing
Fafnir Single Row 305K Ball Bearing 305K C3 FS50000 NIB
Fafnir Single Row 305K Ball Bearing 305K C3 FS50000 NIB
Fafnir W210PP4 Single Row Shielded 1-1/8 Sided Square Bore Ball Bearing NWOB
FAG 4304B.TVH 4304 BTVH Double Row Ball Bearing 20 x 52 x 21mm NIB
FAG 4304B.TVH 4304 BTVH Double Row Ball Bearing 20 x 52 x 21mm NIB
FAG 6008.2RSR Single Row Sealed Deep Groove Ball Bearing 40mm ID, 68mm OD NIB
FAG 6207.2RSR.C3 Deep Grove Ball Bearing w/ Rubber Seals 35mm Bore
FAG 6209.2RS Deep Groove Rubber Seal Ball Bearing 45mm ID
FAG 6306.2RSR Deep Groove Rubber Seal Ball Bearing 30mm ID
FAG 7306 7306B Tapered Angular Contact Precision Bearing 30mm ID, 72mm OD NIB
Fag Bearings Model 6212.2RSR.C3 60mm ID x 110 mm OD 22 mm T NIB
Fag Bearings Model 6212.2RSR.C3 60mm ID x 110 mm OD 22 mm T NIB
FAG Bearings Model 6212.2RSR.C3.L12 NIB
FAG Deep Groove Ball Bearing Model 6309.2RSR.C3 NIB
FAG Deep Groove Ball Bearing Model 6315.2ZR.C3 NIB
FAG H205 Adapter Sleeve, 20MM ID with KM5 Washer
FAG NU210E.TVP2.C3 Cylindrical Roller Bearing Inner Race 50mm ID, 90mm OD NIB
FAG NU305E.M1A.C4 Inner Race Roller Bearing 62mm OD, 25mm ID, 17mm Width NIB
Fairchild Electro-Metrics Conical Antenna Model LCA-25
Fairchild TRI-25, 42-68 Tripod with Extending Legs, AMT-25 Mount Head
Falk 1010GC02 #2 HUB Coupling Rebore 1.249, 785162 NOS
Falk 1010GC02 Coupling Rebore 1.4365, 785162 NOS
Falk 1010GC02 Coupling Rebore 1.4365, 785162 NOS
Falk 1010GC02 Hub Rebore Hub #1, 1.249 / 1.2495 w/ 1/4 x 1/8 KW NIB
Falk 1045G20 1203269 Sleeve 9-5/16 ID, 10-3/4 Sleeve OD 13-5/8 Flange OD NWOB
Falk 1203269 1045G20 Sleeve w/ 9-5/16 ID Flanged w/ Fasteners & Gasket NWOB
Falk 359846, 10R Cover, Steel/Epoxy Ring 3-3/16 ID NIB
Falk 704644 1070T Hub 2.250 Bore 1/2 x 1/4 KW NOS
Falk 744712, 1045G Flex Hub 9-1/4 OD Hub, 1-1/2 Keyway, 5-5/16 Length Bore NIB
Falk 765096, 1015G82 Rigid Hub Rebore 2.9355/2.9365 Bore 1203681 NIB
Falk 785192 1010GC Sleeve Assy Inside Tooth Gear Coupling NOS
Falk 789346, 20R10 Hub 1.50 Bore, 3/8 x 3/16 KW Coupling Hub NIB
Falk 789348 20R10 Coupling Coupler Hub 1.750 Bore 3/8 x 3/16 KW NOS
Falk 789348, 20R10 Hub 1.750 Bore, 3/8 x 3/16 KW Coupling Hub Missing Set Screw
Falk BU4107J/04UJ TA Taper Bushing 1.250 Bore 0769064 NIB
Falk BU4107J/04UJ TA Taper Bushing 1.250 Bore 0769064 NIB
Falk BU4203J/07UJ Bushing 1.938 Bore Taper TA Bushing 769123 NOS
Falk BU5107J/04UJ TA Taper Bushing 1.250 Bore 0769064 NIB
Falk BU5107J/04UJ TA Taper Bushing 1.250 Bore 0769064 NIB
Falk Shaft Hub Bushing Model 1040T31 1.3750 704930 NWOB
Falk Shaft Hub Bushing Model 1040T31 1.3750 704930 NWOB
Falk Shaft Hub Model 1040T31/35 0704930 1-3/8 5/16 x 5/32 KW NIB
Falk WrapFlex 0789010 40R Flex Element Coupling w Cover No Fasteners Expired NIB
Fall River Weslok SNW17 x 2-15/16 Hub Collar Adapter NIB
Fanuc A660-8005-T355 w 2 Matsushita Electric Works AZ7311 & 5 Pin Connection
Fanuc A660-8005-T355 w 2 Matsushita Electric Works AZ7311 & 5 Pin Connection
Fanuc Robot S - Model 1 Maintenance Manual
Fargo 5/8 HS 4 Flute 4 LOC 6-1/8 Total Length End Mill
Fargo HSS 5/8 4 Flute Professionally CNC Resharpened Double End Mill
Fargo HSS 5/8 4 Flute Professionally CNC Resharpened Double End Mill
Fargo Plug Pipe Tap, 4 flute, 1/2-14 NPTF HSG
Fargo Plug Pipe Tap, 5 flute, 1/2-14 NPTF HSG, interrupted thread
Fasco S2846 1/2 HP Condenser Fan Motor 1075 RPM, 200-230/460 V NWOB
Fasco S2846 1/2 HP Condenser Fan Motor 1075 RPM, 200-230/460 V NWOB
FCI 75869-104LF Conn Header IDC, Low Profile, 2.54mm, 20 pos, 609-1776-ND, 96 pc
FCI ADB-FL Automatic Fire Detector Base in Box ADBFL
FCI AOM-2SF Addressable Output Supervised Control Module AOM2SF
FCI AOM-2SF Addressable Output Supervised Control Module AOM2SF
Federal 10.18MM X Tolerance L5 Ring Gauge / Gage
Federal 10.2100MM XX Tolerance Ring Gauge / Gage
Federal 10.5345mm XX Tolerance D91 Ring Gauge / Gage
Federal 12.05MM XX Tolerance H6 Ring Gauge / Gage
Federal 12.05MM XX Tolerance H6 Ring Gauge / Gage
Federal 13.60MM XX Tolerance D6 Setting Ring Gauge / Gage
Federal 32.0150 MM XX Tolerance K91 Ring Gauge / Gage
Federal 37.625MM XX G89 Tolerance Ring Gage/Gauge
Federal 9.6760MM XX Tolerance F90 Ring Gauge / Gage
Federal D90 9.676mm XX Tolerance Ring Gauge / Gage
Federal Gage Dimensional Air Gauge Model DR100-TS2-.3727-1 NWOB
Federal Gage Dimensional Air Gauge Model DR100-TS3-.3727-1 NIB
Federal Gage Q21 Dial Indicator Gauge .002 mm with Box
Federal Model P31 Dial Indicator Gauge .005mm Increment & 2 Face
Federal Mogul National 416156 Oil Seal 4.625 x 5.625 x 0.500 NIB
Federal Mogul National Oil Seals 415027 3.500 x 4.999 x .468 |
