6FC5111-0CA03-0AA2系统是其中重要的组成部分。PLC可以多种方式如直接采用现有的组态监控软件与上位监迭机通信,但针对小规模的控制系统,找到一种高性能价格比的通信方法,具有积极的实际意义。
1 通信装置的硬件描述
可编程控制仪与PC机之间实现通道,可使二者互补功能上的不足,PLC用于控制方面既方便又可靠,而PC机在图形显示、数据处理、打印报表以及中文显示等方面有很强的功能。因此,各PLC制造厂家纷纷开发了适用于本公司的各种型号PLC与PC机通信的接口模块。三菱公司开发的FX-232AW接口模块用于FX2系列PLC与计算机通信。还有与以太网连接的接口模块AJ71E71、与MAP网连接的接口模块AJ71M51-S1、与FAISMAP网连接的接口模块AJ71M51M1等。不同的通信方式,有着不同的成本价格和不同的适用范围。在此介绍一种通过PC机的RS-232口与PLC进行通信的实现方法。回收PLC。
FX2系列可编程控制仪的编程接口采用RS-422标准,而计算机的串行口采用RS-232标准。因此,作为实现PLC计算机通信的接口电路,必须将RS-422标准转换成RS-232标准。
RS-232与RS-422标准在信号的传送、逻辑电平均不相同。
RS-232采用单端接收器和单端发送器,只用一根信号线来传送信息,并且根据该信号线上电平相对于公共的信号地电平的大小来决定逻辑的“1”(-3~-15V)和“0”( 3~ 15V);
RS-422标准是一种以平衡方式传输的标准,即双端发送和双端接收,根据两条传输线之间的电位差值来决定逻辑状态。RS-422电路由发送器、平衡连接电缆、电缆终端负载和接收器组成。它通过平衡发送器和差动接收器将逻辑电平和电位差之间进行转换( 2V表示“0”,-2V表示“1”)。回收西门子PLC。
选用MAXIM公司的MAX202实现RS-232与TTL之间的电平转换。MAX202内部有电压倍增电路和转换电路,仅需 5V电源就可工作,使用十分方便;选用MAX490实现RS-485与TTL之间的转换。每片MAX490有一对发送器/接收器,由于通信采用全双工方式,故需两片MAX490,另外只需外接4只电容即可。
可编程控制仪的RS-422接口配接DB-25型连接器,而PC机一般用DB-9型连接器。
将RS-232的RS、CS短接,这样对计算机发送数据来说,PLC总是处于就绪状态。也就是说,计算机在任何时候都可以将数据送到PLC内。又由于DR、ER交叉连接,因此,对计算机接收数据来说,必须等待至PLC处于准备就绪状态。PLC回收。
2 通信装置的软件描述
2.1 FX2系列PLC与计算机之间通信协议
FX2系列可编程控制仪与计算机之间的通信采用RS-232标准,其传输速率固定为9600bps,奇偶校验位采用偶校验。数据以帧为单位发送和接收。一个多字符帧由力所示的五部分组成,其中和校验值是将命令码ETX之间的的呢字符的ASCII码(十六进制数)相加,取得所得和的**二位数。STX和ETX分别表示该字符帧的起始标起和结束标志。西门子PLC回收。
FX2系列与计算机之间的通信是以主机发出的初始命令,PLC对其作出响应的方式进行通信的。共有0、1、7、8四种命令,上位机实现对PLC的读写和强行置位。通过ENQ、ACK和NAK,上位机协调与PLC的通信应答。
2.2 通信过程
采用BlandC编写主机与PLC的通信程序。首先必须对COM1口进行初始化,波特率为9600bps,奇偶校验位采用偶校验,七位有效数据。当计算机接收到来自PLC的应答字符ACK后,就可以进入数据通信了。
计算机可对PLC内各软设备进行读、写和强制ON/OFF操作。除开PLC的计时器和计数器的设定值采用常数时,以及文件寄存器内的数据,FX2系列PLC的所有开关量输入、输出以及各软件设备对计算机都是透明的。其操作时的多字符帧的格式如图3所示。但不同的操作在“多个字符”项内有所不同。例如,计算机对PLC的软设备Y20~Y37进行读操作,查装置地址表为00A2,读取2字节数据。收购PLC。
如传送的命令有错误,PLC返回NAK信号,本次操作失败,重新进行。
为了保证主机与PLC的通信准确无误,上位机也必须按通信协议进行和校。如接收的信息有误,则重新读取。如重复3次仍不行,则显示错误信息。
使用C语言很容易实现以上编程。
主机还可向可编程控制仪写数据,进行单点的强近置位和复位。
对于运行在控制和实验室环境飞速下本方案运行可靠、性价比高、体积小、但是对于通信距离长,环境恶劣的发问,需加光电隔离等措施。 控制面板,找到添加/删除程序,添加/删除windows组件,选**后一个“消息队列”,勾上安装。安装时可能需要winxp光盘(要原版,非Ghost版),选择光盘里的i386目录。
Net问题
如果先装Net后装Step7的话, Net中Ncm选项千万不能选,否则装不上去的.
Step7和SimaticNet中都包含NCM,先安装SimaticNet后,NCM可以组态PC站,并不能打开或组态Step7项目中的AS站;再安装Step7时,安装程序检测到NCM已经存在,所以会中止安装Step7。而先安装Step7后,再安装SimaticNet时,安装程序检测到NCM已经存在,所以只是不会安装SimaticNet中的NCM,但会安装其它组件。我一般先安装Step7,再安装SimaticNet,**后安装WinCC。注意三者之间的兼容性。
反复重新启动
很多人受西门子软件安装需重新启动机器,然而启动机器后又提示重新启动机器,然而反复重新启动仍然出现这样的提示,导致软件不能安装。现在给出解决方案:
在注册表内“HKEY_LOCAL_MACHINE\System\CurrentControlSet\Control\Session Manager\”中删除注册表值“PendingFileRenameOperations”
解决反复重启无法安装西门子软件(VBS解决方案)
‘delet PendingFile
Set WshShell = Wscript.CreateObject("Wscript.Shell")
WshShell.Regdelet "HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager\PendingFileRenameOperations"
Set WshShell = Nothing
将上面的脚本保存到文本文件里,文本文件扩展名由TXT改名为VBS即可
例如:delet PendingFile(解决重启问题).vbs
不要重新启动,继续安装软件。
现在可以安装更多程序而无需重启计算机了。
**简单的安装方法就是,安装Vista系统,然后安装完所有的西门子软件,**后将系统升级为Win7系统。
比较折中的方式就是使用Win7的XP Mode模式或者直接安装诸如WMware,VisualBox这种虚拟系统,并安装XP。
2 安装&卸载
2.1 在Windows 7安装STEP 7 MicroWIN
SP4能安装,安装完毕后发现‘设置PG/PC接口’没有PLC PC/PPI cable(PPI)这一项,那就等于不能连接PLC。
SP7也能安装,安装到了90%的时候出现以下情况,找不到S7EpaSRVx.exe文件
找了一台VISTA系统的电脑把S7EpaSRVx.exe复制到本PC的Windows\System32目录下。再重新安装又出现以下情况
在网上找到了解决的路径,到 http://download.microsoft.com/download/D/3/3/D33A8F5D-A7E1-4BBE-B04D-7A688785A229/Application%20Compatibility%20Toolkit.msi 下载了一个Microsoft发布名叫Application Compatibility Toolkit的小工具。先安装好Application Compatibility Toolkit,再安装STEP 7 MicroWIN SP6 就OK了!
2.2 Windows7下安装Step7 V5.4SP5
正常情况下,在Windows7下安装Step7 V5.4 SP5时,会无法安装,出现如下图的提LOT 4 NEW BOSCH RECTUS 21 BRASS HOSE SOCKET COUPLER 1/4IN NPT D265771
RAYTHEON ELECTRonICS 75090-4/ST UNIVERSAL FIBER OPTIC 78KBPS ROUTER B289198
NEW TEXAS GASKET & PACKING 317853 6IN RUBBER FLANGE GASKET D299798
NEW MINNESOTA AUTOMATION PRODUCTS 8222713 CHAIN FLIGHT D292549
NEW IMPERIAL CS-103X ConDENSATE CHAMBER 1/2IN NPT D328979
LOT 7 CARBORUNDUM ASSORTED ABRASIVE GRINDING DISK SIZE 3-1/2IN 4IN B334502
NEW DOUGLAS MACHINE F74357 PLASTIC WEAR BLOCK D328565
NEW HACH 54443-01 CL17 CHLORINE ANALYZER PRE-ASSEMBLY MAINTENANCE KIT B252851
LG QJ222KCB 1PH LRA-34 208-230VAC COMPRESSOR B254382
NEW DELTA SYSTEMS M029700 ROLLER NOSE STAINLESS STEEL 6-1/4X1/2IN D244446
8X SKF CR FEDERAL ASSORTED 32502 15142 22532 21091 29540 55137 OIL SEAL B228028
PEABODY ENGINEERING C82595 HIGH ENERGY EXCITER POWER PACK 120V-AC 5A AMP B326737
LOT 4 NEW WEXXAR 25-377 STEEL CUTTING BLADE D337282
NEW INDAG 60015289 3/8 IN ID STAINLESS DISTANCE PIECE D258644
NEW URSCHEL 29039 STAINLESS HOLLOW SHAFT 3/4X5-5/16IN 3/8IN THREAD D243474
NEW TEKLEEN STAINLESS SCREEN #4 FINE 50 MICRON D301034
NEW WINPAK 253018 ConNECTING ROD STAINLESS D338072
NEW P04461191 BRASS OIL RING D341192
LOT 3 NEW SQUARE D CC132 OVERLOAD RELAY THERMAL HEATER UNIT B289696
NEW HAMON RESEARCH-COTTRE?LL 212361-D 16IN OD CLOTH GASKET D330750
LOT 6 CUTLER HAMMER E22B2 SER-A1 ConTACT BLOCK SELECTOR SWITCH B265249
IKA RW-20-DZM 0.5-10MM 1PH 110W DUAL SPEED MIXER STIRRER DIGITAL 185NCM B214695
NEW HALLOWELL 15IN LENGTH SOLID CAST IRON PEDESTAL BENCH PILLAR B308822
LOT 6 OMRON MK2P-S RELAY SOCKET 250VAC 10A AMP B262297
NEW 20-1/4IN OD 15-7/8IN ID 1/16IN THICK ROUND GASKET D331487
LOT 4 NEW LOVE L-099 COUPLING COUPLER 5/8IN BORE D227097
NEW STANDARD KNAPP 830-18 SUPPORT ARM STEEL 1IN BORE B333593
LOT 3 NEW ALLIGATOR 69 7598 10090 BELT LACING SIZE 7 STEEL 12IN B281737
LOT 2 NEW AMPHENOL ASSORTED C14610B0101021 ConTACT base WITH COVER D329850
NEW PACKAGING TECHNOLOGIES FP-E8-084 WEAR STRIP 52-1/8X1X1/4 IN D322904
LOT 10 NEW MERIT ABRASIVES 08834190857 4.5IN POWERFLEX FLAP DISC 040ZRB D292003
LOT 6 NEW CUTLER HAMMER 10250TC2N PLASTIC GREEN LENS PUSHBUTTON B318582
LOT 13 NEW RELIANCE 76625-E PLUNGER GUIDE 3/4X7/8X1-7/16I?N D325424
LOT 2 NEW WESTINGHOUSE ASSORTED HMCP015E0C HMCP003A0C CIRCUIT BREAKER D319778
LOT 5 NEW CHICAGO RAWHIDE ASSORTED 19832 21164 27370 15592 OIL SEAL D284988
NEW EDSAL 4TX60 S12-3 STEEL HARD GREY SHELF 3-PEICE 36X12IN ASSEMBLY B317892
NEW SIG 54669511 SLIDE GUIDE 5-1/2X2-11/16X3?/16IN D327684
NEW TOOL MAKERS INTERNATIonAL CD11-419B KNOCKOUT PAD 3-5/8IN D328898
NEW FELDMEIER 4030423 BEARING BOTTOM 2-9/16X3-3/4X1-?7/8IN NYLON D331325
NEW A-001004 SCALLOPED IDLER ROLLER 1-3/8X4-1/4X6IN D331819
NEW NORGREN C0023C INLINE LOCKOUT 3-WAY VALVE 1/2IN ID B336264
NEW THIELE TECHNOLOGIES 163887 LINEAR BEARING ASSEMBLY 1X2-1/8X1-13/16?IN D338280
LOT 2 NEW HonEYWELL BZ-2RW80-A2 MICRO SWITCH 600V-AC LIMIT SWITCH D281606
LOT 2 NTN WC87506C3/2A SINGLE ROW BALL ROLLER 30MM X 60MM X 16MM BEARING B252596
LOT 2 NTN WC87506C3/2A SINGLE ROW BALL ROLLER 30MM X 60MM X 16MM BEARING B252602
LOT 4 NEW metaLLIC STEEL SHAFT COLLAR 2-1/4X3-1/4X15/?16IN D335647
NEW INDAG 03/50077785 BPM-19-653 CHAIN GUIDE D328118
NEW LINCOLN INDUSTRIAL 13144 INDUSTRIAL LUBE 1-1/4X3/4IN BOLT B269075
NEW SUPERIOR PACKAGING EQUIPMENT 10 STEEL PUSHER DRIVE HOUSING D339698
LOT 3 DALE HLA-225-07Z POWER RESISTOR 300OHMS 225 WATTS D300492
LOT 14 NEW TRI CLOVER 17-62-3U RUBBER VALVE BODY GASKET D224499
LOT 3 NEW SQUARE D 8501LC1 SER A ConTACT CARTRIDGE D310787
LOT 4 NEW PURTREX PX05-9 7/8 05 MICRON WATER FILTER REVERSE OSMOSIS D314899
LOT 4 NEW VIKING 2-805-033-210 RETAINING WASHER D340357
NEW CASTER ConCEPTS 08300-11-24 1IN BORE 9-7/8IN OD CASTER WHEEL D337362
YARWAY 4412 750PSI 30IN RANGE REMOTE LIQUID LEVEL INDICATOR MODULE B340296
LOT 7 NEW MARLEN 632667 CUP SEAL2-5/8X2-1/4?X1/8IN D269437
NEW GOODYEAR 578-93-3-100 SUPER-CUSHION TRIPLE ConVOLUTED AIR BAG SPRING D338823
LOT 3 NEW RADNOR 64002382 STANDARD TIP CLEANER CLEANING SET ASSEMBLY B266778
LOT 2 NEW PARKER RV01A1N100 PNEUMATIC SAFETY RELIEF VALVE 1/4IN POP-OFF D305534
NEW INDAG 60020333 GREEN 78X3X4-1/4IN PLASTIC CHAIN GUIDE D291736
LOT 3 WESTINGHOUSE L-60 INBOARD ELECTRIC INTERLOCK 600V-AC 50V-DC 5A AMP B336977
LOT 2 NEW FISHER 2U909925212 ConNECTOR ARM STAINLESS D325137
LOT 2 NEW 40 TOOTH GEAR WITH 2-7/8X9/16X1-5/?8IN 5MM THREAD IDLER SHAFT D296845
NEW TOOL MAKERS INTERNATIonAL CD11-419B KNOCKOUT PAD 3-5/8IN D328891
NEW PSC PNEUMATIC SCALE 1266906 1/2X1X1-7/16IN SPACER SLEEVE D328992
NEW KLINGERSIL C-4408 THERMOSEAL 13-7/8X19-1/8X1?/8IN GASKET D331592
NEW DCI 078-087308 TOP SEAL 1-3/4X2-1/2X1IN D331575
NEW A-001004 SCALLOPED IDLER ROLLER ASSEMBLY 3/8X1-3/8X4-1/4?IN D331825
NEW RA JonES STDAHR-211 TRANSFER RING 1-3/8X2-3/4X11/?16IN D333848
LOT 2 GENERAL ELECTRIC 15G6439 LAMP BALLAST I-400W H33 MV 120/240/277V D204165
LOT 4 POTTER BRUMFIELD KUP-14A35F ConTROL RELAY SOCKET 120VAC B271499
LOT 2 NEW WARNER ASSORTED 5300101008 5200101010 REPLACEMENT PARTS D228872
LOT 79 NEW PARKER TEE BRASS TUBE ConNECTOR FITTING 3/16IN D315583
NEW RITTAL PS4582.500 BAYING BRACKET SET D333911
NEW WALKER MWY440930 PIN HINGE DOOR ARM D258099
LOT 2 NEW PIAB 31.50.021 F110 VACUUM CUP 3/4IN ID D313107
LOT 12 NEW WESTINGHOUSE 1584470 MAIN ConTACT SPRING 2-3/8IN D340326
LOT 4 ALLEN BRADLEY 800MR-P16 RED PILOT LIGHT MODULE 110/120V-AC B293370
LOT 2 NEW 3M 78-8052-6589-5 EXTENSION SPRING D273008
NEW PALMER 1140-8-03 STEEL ADAPTER KIT D321540
NEW ROVEMA 2700441 SPRING 48X12X9X2MM D267174
LOT 6 FESTO 2031-CK-1/4-PK-?9 FITTING MALE QUICK ConNECTOR 1/4IN NPT B225068
7X PHOENIX ConTACT KGG-MC 1,5/16 CABLE HOUSING ConNECTOR TERMINAL PLUG B332148
LOT 2 NEW GROEN 25115 PUMP CASING ALUMINUM D332053
SHEPARD NILES S-42152 5-1/4IN LENGTH HOIST INCLINE REPLACEMENT PART B324806
LOT 2 ABB B25-30-01 120V-AC COIL 600V-AC 25HP 33A AMP 4P POLE ConTACTOR B329929
NEW NPS 423530636 SUPPORT HOUSING ALUMINUM 2-1/16IN ID D331500
LOT 7 WATERSAVER 1/4IN NPT BRASS FAUCET FITTING WITH VAC YELLOW TOP B234015
NEW 711-4203 VERTICAL ECCENTRIC2X4-3/?4X5/8IN D331823
LOT 3 NEW GATES 3VX850 SUPER HC BELT 85X3/8IN D239751
LOT 5 NEW VI-CAS VC-144 VACUUM CUP 3/8IN ID 1-7/8IN CUP DIA D318340
NEW ACCUSORT 2755-NW44 PLASTIC WINDOW FOR BAR CODE READER D249585
NEW K79428340121 A ALUMINUM MOUNTING PLATE ASSEMBLY 7-1/2X5X1/2IN D322714
LOT 16 NEW ERMANCO 90530094 O-RING CORY D245173
LOT 7 NEW SQUARE D B2.65 HEATER OVERLOAD RELAY ELEMENT THERMAL B292247
LOT 3 NEW GENERAL ELECTRIC CR123C419A OVERLOAD HEATER ELEMENT D275265
LOT 3 NEW NATIonAL 473236 2-3/4X1-5/8X5/1?6IN OIL SEAL D262817
LOT 2 NEW RA JonES 19-05-12A EXTENSION SPRING 5/8X7/16X8-3/8X?1/16IN D267176
LOT 3 NEW SQUARE D B5.50 GROUPE SCHNEIDER THERMAL UNIT OVERLOAD RELAY B238531
NEW HUBBELL CA3430 WATERTIGHT PIN & SLEEVE COVER ASSEMBLY D323688
NEW NPS 423530638 50071336 SHOULDER BOLT 1-1/2IN THREAD ALUMINUM D331836
LOT 3 NEW POTTER BRUMFIELD RIO-E1-W2-V700 RELAY 24V-DC 7.5A AMP B283834
LOT 5 NEW AES ENGINEERED SYSTEMS C29478G34 STAINLESS FAN NOZZLE D335686
LOT 2 NUPRO B-4P4T4 BRASS PLUG VALVE 1/4IN NPT B291126
LOT 9 TOSHIBA ASSORTED D43256C-10LL TC5527PL-10 MEMORY CHIP D253733
LOT 5 OKAYA SUP-E15H-EP NOISE FILTER 15A 250V-AC 2 X 1.5MH B242162
NEW ANGELUS 354H673 STEEL GUIDE PLATE D329811
NEW WAUKESHA SM1 2-1/2-G-316 1 2-1/2IN 72747 PIPING STRAINER TRI-CLAMP B286856
NEW SPRAYING SYSTEMS 21550 1500PSI BRonZE 1/4IN NPT FITTING D328350
LOT 2 NEW DEWALT A24R DW8020 14 X 1/8 X 1 IN 5500RPM GRINDING WHEEL B287981
NEW HAMBA 657 00 069 0030 ASSEMBLY STAINLESS 7/8IN ID D330226
NEW Imeta TOOL MAKERS INTERNATIonAL 929-Z6L1J STAINLESS GUIDE RAIL D335066
NEW FN SMITH 046200 PNEUMSCALE FORK SCALE STEEL D242844
LOT 4 NEW ORION 04039395010 VACUUM PUMP VANE D254363
LOT 20 NEW ACCUSHIM A 0.020 STAINLESS STEEL SHIMS D232036
LOT 2 NEW RED DOT PAR 38 INCANDESCENT FLOOD FIXTURE D264281
LOT 55 NEW XICON 4.7 CAPACITOR 4.7 MFD UF 450V +/-20% D277079
LOT 5 GORDOS OAC5Q CROUZET OUTPUT RELAY MODULE 4-8V-DC 140V-AC 3A AMP B340986
LOT 5 NEW OPEK 6FT UHF COAXIAL CABLE JUMPER PL-259 MALE TO MALE B328585
LOT 5 NEW THOMAS&BETTS FS116 POS-E-KON FEMALE SOCKET TERMINAL ConNECTOR B336578
NEW GORTRAC 714/422796 200IN X 2IN POWER TRACK CABLE CARRIER B299216
NEW ATLAS COPCO 2906 0182 00 COMPRESSOR REPAIR 400 HOURS SERVICE KIT B313134
LOT 4 NEW ELMAR BE-00253 ROLLER SHAFT STAINLESS STEEL 1/2IN THREAD D272507
NEW NATIonAL PARTS SUPPLY 411457519 GEAR RACK 31-7/8IN LENGTH B224917
NEW KOCH EQUIPMENT 866466 ALUMINUM GUARD D321951
NEW NATIonAL PARTS SUPPLY 477704035 34144 KNIFE BLADE D339996
NEW PEARSON B015345 ASSEMBLY SPRING D229441
LOT 2 NEW ALFA LAVAL 13MHHM-2.5 SANITARY PIPE CLAMP 2-1/2IN STAINLESS D249348
NEW MORRISON DWG 207157 OPERATING SHAFT 1-3/8X9/16IN D331976
LOT 4 NEW DAYTON 132-5513 GASKET D285825
NEW PSC 14109107 STUB SHAFT 5/8X2IN D328541
LOT 2 NEW BANNER LM1 MULTIBEAM LOGIC MODULE FOR PHOTOELECTRIC SENSOR B248249
KIMBERLY CLARK FOLDED PAPER TOWEL DISPENSER HOLDER BLACK B225382
LOT 5 NEW ALLEN BRADLEY W27 THERMAL OVERLOAD RELAY HEATING ELEMENT B285095
LOT 5 HonEYWELL 14002362-001 DUCT SAMPLING BOX CHAMBER FOR HP970 B213460
NEW PNEUMATIC SCALE PSC 138X5428 HARDWARE GUIDE RAIL SUPPORT B340683
LOT 2 NEW FISHER 1J9402X0032 VALVE GASKET D340774
NEW UNITRAK J1046230877 DECK PLATE 5-1/2X3/8IN D336518
LOT 9 NEW BANJO 100F MALE ADAPTER THREADED 1IN D254629
LOT 3 HonEYWELL M7410F1000 LINEAR 24VAC ACTUATOR REPLACEMENT PART B218032
LOT 4 NEW 9081-X-0307 5/16X3/8X1/16X2?-3/16IN COMPRESSION SPRING D286904
LOT 15 NEW GARDNER BENDER GB KO704 1-1/4 HOLE BOLT KNOCK OUT SEAL D236758
NEW DANFOSS 027F0660 REGULATOR STRAINER 2-13/16X2-11/16?X2IN D331244
LOT 4 TIMKEN L44649 TAPERED ROLLER CONE BEARING 26.988X50.292X1?4.224MM B225153
LOT 3 BUSSMANN FRS-R-125 FUSETRON 125A AMP 600V-AC TIME DELAY FUSE B309517
LOT 2 NEW DonALDSON P550318 OIL FILTER D295980
NEW NPS 423540284 BRAKE PLATE 2-1/2X2-1/8X7/1?6IN D331837
NEW UNITED DAIRY MACHINERY 12210027 PLUNGER 13IN LENGTH 1-5/8IN DIAMETER B333221
LOT 27 NEW SNAP TITE 71076 GASKET D222551
NEW 75-123 STEAM JET 1-1/2IN THREAD BRASS FITTING D332633
LOT 4 NEW DIALIGHT 507-4538-1437-6?10 INDICATOR LIGHT BULB D337204
LOT 2 NEW TSUBAKI 40A48 48 TOOTH 3-1/4IN BORE CHAIN SPROCKETS D261509
3M FP-301-3/8-RED-?100 HEAT SHRINK THIN WALL TUBING 50FT SPOOL 3/8IN WIDE D203239
NEW 70-8601-0016-6 SCOTCH TAPE BLADE KNIFE D251579
NEW FOWLER 200029 COMPRESSION SPRING D226954
NEW KE FIBERTEC 107688-030 DIREJET SYSTEM WHITE 12.01IN X12FT DUCT SOCK D309117
LOT 9 NEW POTTER BRUMFIELD R10-E1-Z4-J1.0K RELAY 13 MA DC D296256
LOT 3 NEW ALLEN BRADLEY 800MR-QA24S SER D ILLUMINATED PUSHBUTTON 24V D304367
NEW INDAG 60034444/BHM-03?-105A ROLLER AXEL 12MMX7-1/2IN SHAFT D329068
LOT 2 NEW CARR-LANE CL-23-PHK PALM-GRIP HAND KNOB D273041
LOT 3 NEW SKF AN17 BEARING NUT WASHER STEEL 3IN NPT 4-3-/8IN OD B329375
NEW SIG 54730600 TOOTH SEGMENT HEIGHT ADJUSTMENT D327803
LOT 4 NEW GATES 420L050 POWERGRIP TIMING 42X1/2IN BELT D297674
LOT 26 NEW IMPERIAL ASSORTED 1-4 90 DEGREE BRASS FITTING 1/4IN TUBE D304910
NEW RA JonES 185554 ALUMINUM VACUUM LAND D340475
NEW RELIANCE H-95044 STEEL HAND-WHEEL-SCRE?W-ADJUSTABLE MOTOR base D298011
LOT 10 NEW METTLER TOLEDO 2N-01M-0003 CYLINDER BOLT LP5 D338126
LOT 4 SCHRADER 4804-1000 EXHAUST SILENCER D277454
NEW REMBE BT-KUB-2 1101122 REVERSE ACTING BUCKLING PIN BURSTING DISC D331242
NEW HAMRICK 9980826 SMOOTH ROLLER 107X19X25MM D309988
LOT 3 NEW CHICAGO RAWHIDE ASSORTED 52445 42528 46790 OIL SEAL D326924
LOT 3 NEW SPUR GEAR 1/4IN BORE 20TOOTH 22MM OD D279686
LOT 5 NEW PARKER 1JS55-6-5 3/8IN NPT 5/16IN HOSE ADAPTER FITTING D312622
LOT 6 NEW MOYNO F08591 BEARING LOCK WASHER D289019
NEW WESTINGHOUSE 501B19G02 PUFFER TUBE ASSEMBLY 3/4IN ID D327682
LOT 21 NEW TSUBAKI 60AA1RL ROLLER CHAIN link 3/4IN PITCH D290640
NEW PSC 1350972 STEEL SUPPORT RING 6-1/2IN ID D328644
NEW NORTON G12966785 7 X 1 X 1IN MEDIUM GRIT GRINDING WHEEL B279291
NEW CFS 4016008544 STAINLESS ALIGNMENT ROD 50MM OD 20-1/4IN LENGTH D327944
NEW SIG 54669511 SLIDE GUIDE 5-1/2X2-11/16X3?/16IN D327680
NEW SEAFORD 001348/X-07-K STEEL STRETCH WRAP ARM D334947
NEW AMP-ROSE 42B203S7 DISC DRIVE D337854
LOT 5 NEW MOTOROLA 50-5181E02 24OHMS 2IN SPEAKER D289854
NEW NATIonAL PARTS SUPPLY 423520048 RUBBER FLAP 49-3/4X4IN D322695
LOT 3 MAC PPE-1 PILOT VALVE ASSEMBLY D330091
LOT 9 NEW NYCOIL BRASS FITTING 1/4IN TUBE 1/4IN NPT D334885
LOT 2 NEW FOXBORO C-128-AL ARBOR ASSEMBLY D326266
NEW SIG 5447680 SPACER SLEEVE 30MM ID SET SCREW D326910
LOT 9 NEW GENERAL ELECTRIC GE ASSORTED OVERLOAD THERMAL HEATER ELEMENT D337998
LOT 7 NEW LANTECH P011352 3/4IN BORE BRonZE BUSHING D266300
NEW SANITARY SHORT WELD FERRULE 4IN STAINLESS D319390