MTM-120-P-A20
1．PLC的类型
PLC按结构分为整体型和模块型两类，按应用环境分为现场安装和控制室安装两类；按CPU字长分为1位、4位、8位、16位、32位、64位等。从应用角度出发，通常可按控制功能或输入输出点数选型。整体型PLC的I/O点数固定，因此用户选择的余地较小，用于小型控制系统；模块型PLC提供多种I/O卡件或插卡，因此用户可较合理地选择和配置控制系统的I/O点数，功能扩展方便灵活，一般用于大中型控制系统。
2．输入输出模块的选择
输入输出模块的选择应考虑与应用要求的统一。例如对输入模块，应考虑信号电平、信号传输距离、信号隔离、信号供电方式等应用要求。对输出模块，应考虑选用的输出模块类型，通常继电器输出模块具有价格低、使用电压范围广、寿命短、响应时间较长等特点；可控硅输出模块适用于开关频繁，电感性低功率因数负荷场合，但价格较贵，过载能力较差。输出模块还有直流输出、交流输出和模拟量输出等，与应用要求应一致。可根据应用要求，合理选用智能型输入输出模块，以便提高控制水平和降低应用成本。考虑是否需要扩展机架或远程I/O机架等。
3.电源的选择
PLC的供电电源，除了引进设备时同时引进PLC应根据产品说明书要求设计和选用外，一般PLC的供电电源应设计选用220VAC电源，与国内电网电压一致。重要的应用场合，应采用不间断电源或稳压电源供电。如果PLC本身带有可使用电源时，应核对提供的电流是否满足应用要求，否则应设计外接供电电源。为防止外部高压电源因误操作而引入PLC，对输入和输出信号的隔离是必要的，有时也可采用简单的二极管或熔丝管隔离。
4.存储器的选择
由于计算机集成芯片技术的发展，存储器的价格已下降，因此，为保证应用项目的正常投运，一般要求PLC的存储器容量，按256个I/O点至少选8K存储器选择。需要复杂控制功能时，应选择容量更大，档次更高的存储器。
TB Wood's 5J 3/4" Flange Coupling 5J34 7600 New
INA 6203ZC3 Bearing 6203Z-C3 New
No Name Worm Gear 23 New
NEW NO NAME BRASS BRONZE BUSHING 3/4" ID 1" OD 3/4" WIDTH
NEW NO NAME TIMING PULLEY UNKEYED 28L050
LOT OF 2 NEW NO NAME BRASS BRONZE BUSHING 0810 12 081012 1/2"ID 5/8"OD 1-1/2"L
Gates Timing Pulley 22H200 SD 22H200SD New
NEW MEYN BRASS BRONZE BUSHING 3/16" ID 15/32" OD 1 43/64" HGT
CONGRESS DRIVES 1 GROOVE ADJUSTABLE WIDTH PULLEY SHEAVE VP-350 NEW
Maurey 3 Groove Sheave Pulley 3B54SD New
CONGRESS DRIVES 1 GROOVE ADJUSTABLE WIDTH PULLEY SHEAVE 5/8" BORE 4" VP-400 NEW
TB Wood's 6B JA SF Coupling Flange 6BJA New
TB Wood's 7Sx1-1/4 SF Coupling Flange 7S114 7S 1-1/4"
NEW BROWNING SPLIT TAPERED BUSHING H 1 7/16" H1716
New TB Woods Wood's Wood Flange For Sure Flex Coupling 4J3/4 4Jx3/4
NEW POWER DRIVE 1VP60 1-5/8 ADJUST. SHEAVE 1VP60158
Gates QD Bushing SK X 1 1/4 SKX114 1-1/4" New
NEW INA PERMAGLIDE BUSHING PAP2025P10 1650513
Woods Sure-Grip Bushing SF X 15/16 SFX1516 15/16" Bore New
NEW MARTIN 3 GROOVE SHEAVE PULLEY 3 B 54 SD 3B54SD MAX RPM 4317
New TB Woods Wood's Wood Sure Flex Spacer Hub 5SC-Hx1 5SCHx1 1"
New TB Woods Wood's Hub 6SC-H 5/8 MPB 6SCH5/8MPB 6SCH 5/8 MPB
DODGE 117088 TAPER LOCK BUSHING 2012 X 3/4 2012X34 2012 3/4 3/4" Bore NIB
New TB Woods Wood's Wood Flange 3J 7/8 3J-7/8 7/8"
NEW NO NAME TIMING PULLEY 24LB050 24L050
TB Wood's Wood Woods SF138 Bushing SF X 1 3/8 SF 1-3/8" New
NEW BROWNING 48XLB037 GEAR BELT PULLEY
New TB Woods Wood's Wood Sure Flex Flange Coupling 4J15/16 4J 15/16 4JX1516
TB Wood's 8J112 SF Sure-Flex Coupling Flange 8J 1-1/2"
TB Wood's 8J1316 SF Sure-Flex Coupling Flange 8J 1-3/16
TB WOOD'S L100 3/4" L-JAW COUPLING L-100 NEW
TB Wood's 5J12 SF Coupling Flange 5Jx1/2 5J 1/2" New
Ruland 1/2" X 1/2" Shaft Coupling New
New TB Woods Wood's Wood Hub 3J 3/4 3J3/4 3/4" Max RPM 9200
TB Wood's 7Sx1-1/2 SF Coupling Flange 7S112 7S 1-1/2
TB Wood's 6J1516 SF Coupling Flange 6Jx15/16 6J 15/16"
TB Wood's SDx1-11/16" Sure-Grip Bushing SD 1-11/16 QD
TB Wood's 5Sx3/4 SF Coupling Flange 5S34 5S 3/4" New
TB Woods Timing Pulley 28H200 28H200-SD New
TB Woods 3 Groove V-Belt Sheave 3V3653SH 3V3.65 x 3-SH 3 V 3.65 3 SH New
TB Wood's 3J 3/8" SF Coupling Flange 3J38 3Jx3/8 New
IKO LBD8UU LBD-8UU Linear Bushing NEW
TB Woods SG Bushing SH114 SHX1-1/4 New
Lot of 2 GBC 6006Z Ball Bearing 6006-Z New
TB Wood's AK411 Single Groove Pulley Sheave AK41/HA39 1
Universal Sewing Supply V00011-2064 Pulley For S52 15mm Bore New
NEW TB WOOD'S J 3-7/8 QD BUSHING J 37/8 J378
NEW FCI 82006594 BEARING SLEEVE
TB WOODS SDS 9/16 SDS9/16 SDSX9/16 BUSHING NEW
NEW LOT OF 2 NO NAME BRASS/ BRONZE BUSHING 3/8"ID 3/4"OD 1-5/16"HIEGHT
Browning Single Groove Sheave Pulley AK41H New
Dodge 228087 WA30 Weld on Hub Use with 3030 Bushing New
NEW HARRIS REED PULLEY WITH MOUNTING BRACKETT NO 15
BROWNING 1 GROOVE AK PULLEY SHEAVE AK51X1/2 1/2 NEW
NEW MARTIN BUSHING JA 5/8 5/8" BORE JA58
NEW TB WOOD'S SK X 1-15/16 BUSHING SK 1-15/16 SGK
LOT OF 3 NEW NO NAME BRASS BRONZE FLANGED BUSHING 1/2"ID 5/8"OD 5/16"W 3/4" FOD
NEW DODGE 117168 TAPER-LOCK BUSHING 2012 1-1/2 KW
NOS TB WOOD'S 5V904 ULTRA-V 4-GROOVE V-BELT PULLEY SHEAVE MAX. RPM 2780 9" O.D.
GATES 78241421 60H200SF 60 H 200 SF TIMING PULLEY NIB
COOPER BUSSMAN FUSED DISCONNECT SWITCH CCP-2-30CC 2 pole 30A 30 AMP A 600V
SKF BEARING 6207 2ZJEM 62072ZJEM 6207-2Z/C3HT51 62072ZC3HT51 NIB
TB Woods Split Taper Bushing SK138 SK X 1-3/8 SKX138 1-3/8" Bore New
TB WOODS BUSHING SF 1-1/4 SF X 1-1/4 SFX1 1/4 NEW
MARTIN 2 GROOVE SHEAVE 2 B 6.0 SDS 2B60SDS MAX RPM 6015 5WE 2 1/8" BORE NIB
NEW Dodge Taper-Lock Bushing 117158 1610 x 3/4 kw 1610x3/4kw
HI-LO MANUFACTURING CO. VARIABLE SPEED PULLEY 167 X380212 MO9826 8-93 NEW
Gates 5/8MPB Synchro Power Timing Pulley 18H100 New
NEW DODGE DYNA SYNC TIMING PULLEY 113568 TL30L100-1610
BRONZE BRASS BUSHING 1/2"ID x .688"OD x 3/4"L LOT OF 3
Rexnord Hub 7300325 1-3/8" Keyed Bore New
TB WOOD'S FHP SHEAVE BK80 BK80/HB77 QT NIB
TB Wood's 10Sx1-5/8 Coupling SF Flange 10S158 1-5/8"
Woods Bushing QT 5/8 QT58 5/8" Bore New
NEW MARTIN QD TIMING PULLEY 20L100 JA 20L100JA
No Name 1610 1-1/8" TAPER LOCK BUSHING 1610118 New
Woods Gerbing Variable Speed Pulley Var-A-Cone 40 5/8" Bore 3/16" Keyway Used
Browning Synchronous Gearbelt Timing Pulley 24LH100 1 1/2"
NEW AMETRIC TAPER BUSHING 1610.1 1" BORE SIZE
Gates Gear Belt Timing Pulley 16LF075X1/2 16LF075X12 16LF075 X 1/2" Bore New
NEW DAYCO SYNCHRO-COG 420 L 050 TIMING BELT 420L050 1/2"WIDE
NEW BROWNING V-BELT PULLEY BK72H
NEW GATES TIMING PULLEY UNKEYED 28LB050 78230376
Eaton Bushing SDS 15/16 SDS1516 15/16" Bore Size New
NEW BROWNING 3 JAWED COUPLING CHJP4 CHJP4X5/8 5/8" KEYED BORE
Boston Gear YF30A 10630 Keyed Spur Teeth Sprocket 30 Teeth NEW
BROWNING 3B580 3 GROOVE SHEAVE NEW
New Martin 4 C 110 E 4 Groove V-Belt Sheave USA
NEW THOMSON MULTITRAC BALL BUSHING MA M25 MAM25
Martin Keyed Bore Bushing F-STL 3 3" Bore New
TB Woods Bushing QT1716 QT X 1 7/16 1-7/16" Bore New
CONGRESS DRIVES 7" PULLEY SHEAVE 1 GROOVE 3/4" BORE NEW
NEW TB WOODS SF134 SG BUSHING SFX1 3/4 1-3/4" BORE
TB Woods 9 S 2-1/2" SF Flange 9S2-1/2 9S212
Allen Bradley Stratix 2000 Ethernet Switch 1783-US05T Ser A 24 VDC/AC Ver 08 New
New No Name Brass Bronze Bushing 7/16" 5/8" 3/8" Lot 3
Dodge Taper Lock Bushing 119055 1615 X 1-7/16 16151716 1-7/16" Bore New
CONGRESS DRIVES 6" PULLEY 3X918 6A X 1/2 1/2" BORE NIB
NEW WOODS BUSHING SDS 1-7/8 S SDS178S 1-7/8"
Dodge Generic Taper-lock Bushing 119048 1615x1kw NEW
TB WOODS SK 2 1/2 SK212 SK 2-1/2 SKX2-1/2 BUSHING NEW
NEW WOOD'S SURE-GRIP BUSHING SDS X 1 11/16" BORE
BROWNING GEAR BELT TIMING PULLEY 21 TEETH -21HB 100 21HB100 2IHB100
NEW NO NAME BRASS BRONZE INTERNAL GROOVE BUSHING 1620-12 162012 1"ID 1-1/4"OD
Dodge Split Taper-Lock Bushing 119365 1108 X 1/2 KW 1108 1/2 New
Browning Timing Pulley 20LG050
THOMSON OPEN BALL BUSHING OPN81420 NIB
NEXEN LWB BUSHING 1.25 BORE 1 1/4 821200 NEW
TB Wood's 6Sx1-5/16 SF Coupling Flange 6S1516 6S 1-5/16
NEW IFM CONNECTOR CABLE E 10216 E10216
DODGE BUSHING 119617 2012 x 45mm 201245 45MM 45 MM KEYED BORE NEW
TB Woods 1 Groove V-Belt Sheave 3V2351 3V 2.35 1 JA New
TB WOOD'S L100 1-1/4" TFH L-JAW COUPLING L-100 NEW
NEW GATES 14M-36S-37 SF POLY CHAIN GT SPROCKET TIMING PULLEY 5010 RPM 7727-3036
Martin Keyed Taper Bushing 1615 1 16151 1" Bore New
Martin 60BTB14 1210 Sprocket 60 BTB 14 1210 New
Martin Timing Pulley 30L100SDS New
NEW MAUREY 2 GROOVE KEYED SHEAVE PULLEY D4380 7/8" BORE
NEW Browning Sheave Bushing P1 1-5/16 P1-1-5/16
New No Name Brass Bronze Bushing 1/2" 3/4" 1/2" Lot 3
NEW SMITH BUSHING CTY-47 CTY47
TB WOODS BUSHING 2517 1 7/16 25171-7/16 251717/16 NEW
NEW NO NAME SH-1VW BUSHING SH1VW
Martin 4 Groove Sheave 4B5.6 TB2517 4B56TB2517 4B5.6 New
BROWNING 1 GROOVE GRIPBELT 1.930" PULLEY SHEAVE 1TB56
NEW DODGE 1615 1-1/8 BUSHING 1615118 16151-1/8
NEW LOT OF 4 NO NAME GALVANIZED REDUCER HEX BUSHING1/2" MALE 1/4" FEMALE
NEW BOSTON GEAR 18556 SOFT STEEL BUSHING 1/2"x3/4"x1"
NEW MARTIN TAPERED BUSHING 1610 15/16" BORE
NEW FCI 82078528 BEARING SLEEVE
Browning Bushing P1 1-1/16 P11116 P1 1 1/16 1-1/16" Bore New
ALLIANCE CORP. LOCKING PIN BUSHING CL-6A-LPB CL 6A LPB CL6ALPB
NEW FCI 82000969 BEARING SLEEVE
A & M Clutch Plate 420109 New
NEW WAYNE DALTON 4" SHEAVE
TB WOODS BUSHING QT1 QT X 1 5192715380 QTX1 NEW
LOVEJOY L-110 35MM COUPLING L110 35 MM NEW
NEW NO NAME SYNC PULLEY 48L100
Browning 16HG100 Timing Belt Gearbelt Pulley 1-3/32" Bore New
NEW DODGE JA 1 1/4 BUSHING JA11/4
Ametric Bushing MZ3502 2012 20 2101220 New
DODGE 117083 1610 X 15/16 KW 15/16" BORE NIB
NEW BROWNING NBK52 Idler V Belt Sheave
No Name Keyed Timing Pulley Z 15 Z15 New
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