ABB贝利卡件IMCOM03 IMMFP12
ABB贝利卡件IMCOM03 IMMFP12
ABB贝利卡件IMCOM03 IMMFP12
被动式冗余主要由服务的请求者实现,基于失败重试原理,在可用的服务提供者之间重试,
直到找到一个可用的提供者。被动式冗余是简单的,但也有很大的局限性,它要求冗余节点只是作为信息的处理者,完全作为C/S架构中的S,而不可能作为信息的发起者。这类冗余在事务处理系统(MIS)中比较常见,因为这类系统总是响应用户的操作,而很少会有自动收集信息并处理的业务。
在控制系统中的冗余架构,基本都是主动式冗余架构。它要求冗余节点能够自动检查主备节点的运行状态,并且在主节点失败时自动切换到备节点。
主动冗余架构也有两种实现方式,一是主备节点间设有交换运行状态的通讯通道,由他们自行协商何时进行主备切换,可以称为自控方式。另一种是基于一个中心的冗余控制器,冗余控制器分别与主备节点通讯,并决定何时进行主备切换,可以称为集控方式。
在笔者参与的地铁控制系统中,两个与硬件直接通讯的主备RTU(REMOTE TERMINAL UNIT)之间就采用自控方式。当两个RTU之间不能通讯时,或者当前系统中仅有一个RTU时,它们会将自己设定为主节点,提供所有服务。当两个RTU建立了通讯连接后,它们会就谁是主节点进行协商,主节点条件包括,是否连接有更多的外围设备,是否正在对外围系统提供服务等等。当确定谁是主节点后,两个RTU就会自觉把自己设定为相应的工作状态。自动方式中的主备节点,要求它们在系统中具有不同的逻辑地址,以让它们的客户端能够分别找到它们,并且确定它们的工作状态,并对它们提供的信息进行不同的处理。
在集控方式的实现中,主备节点在运行时都向冗余控制器注册,由冗余控制器确定他们的运行方式,另外冗余控制器还担任监视主备节点运行状态的责任。当主节点在设定的时间内没有响应时,冗余控制器则重新设定主备节点的运行方式,备节点代替主节点处理内部信息、响应请求。在这种情况下,主备节点具有使用相同的逻辑地址,它们的运行状态对客户程序是透明的,所有的客户请求都通过冗余控制器转发给主节点。
在基于构件的软件架构中,比如J2EE, CORBA, .NET, WEBSERVISE等,任一软件构件都具有的构件标识,使构件的客户端可以准确地定位构件的位置,并请求服务。这就跟构件冗余系统产生冲突,冗余系统要求所有构件都要有主备节点,并且要求其主备模式对构件的客户端是透明的。这样,支持主备构件的寻址服务就成为系统不可缺少的基础服务,它可以解析客户的寻址请求,并把服务请求转发给主节点构件。
支持冗余的构件本身,为了满足苛刻的系统切换性能要求,针对具体情况特别设计。但有一点是共同的,就是主备构件的数据同步。在任何情况下,当主节点故障,备节点接管后,要能够保持与主节点故障前同样的内部状态信息。一种情况是主备节点中,同时只有一个节点从外部获得信息并对外提供服务,这样主备节点之间的数据同步,就需要同步所有的动态数据,而且只能通过主备节点间的通讯实现。由于主备节点通常不在相同的物理位置上,其间的通讯只能通过网络实现,这样就保证主备节点间数据同步的,不能占用大量的网络带宽。另一种情况是主备节点可以同时从外部获得信息,但同时只有一个节点对外提供服务,这样主备节点间的数据同步就会减少,只需要同步少量运行状态信息,但同样会有缺点,它要求信息提供者可以支持同时给主备节点提供相同的信息。
HART475+++++++++++++++++++发布型号
MDS-C1-V2-2020
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卖过的好料
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HF75T-SV-S6-A51
6DD1600-0AK0
6AV6643-0CD01-1AX1
6SL3955-5TX00-1AA1
FV200-M2
FV223-M2
CC-TCF901
CC-TDIL01
CC-TAIM01
CC-PCNT02
CC-TCNT01
CC-PCF901
6AV2124-0XC02-0AX0
6AV2 124-0QC13-0AX0
6AV2124-0MC01-0AX0
6ES7412-5HK06-0AB0
6ES7441-2AA05-0AE0
6ES7431-7QH00-0AB0
6ES7414-3EM05-0AB0
3BUS212547-001
A5E00714562+FS450R12KE3_S1
1756-L71
6AV6643-0DD01-1AX1
PD D405 A101
UF D402 A101
BCU-02
1756-IRT8I
A06B-6240-H328
A02B-0311-B530
A06B-6134-H202#A
GJR5253100R3262 07KT98H4
A06B-1406-B201
PP865 3BSE042236R1
A06B-6160-H004
A06B-6160-H003
TSXP575634M
622A11TDE
A860-2120-T402
PCI-4472
6SN1145-1BA01-0DA1
6SN1123-1AA00-0EA2
6SN1123-1AA01-0FA1
6SN1118-0DH23-0AA0
DIP-SWICHESSETTING 750203/80
dsai130d
140CPU67160 面价99133.26
6AV6643-0CD01-1AX1
6AV6644-0AA01-2AX0
A06B-6114-H209
REF542plus
20-9-2
6AV6644-0BA01-2AX1
6AV6643-0BA01-1AX0
A06B-6110-H037
6AV6643-0CB01-1AX1
REF615
NT06H2
1756-L63
6FC5203-0AF05-0AB0
CN15TN3
6SE7031-8TF60-Z L30+G93
6SE7031-0TE60-Z G93+L30
6FX1111-1AA00
6ES7516-3AN00-0AB0
140CPU65860
6FC5357-0BB35-0AA0
6SL3225-0BE32-2AA0
ACS800-01-0100-3
VMIVME-7698-345
PNI800
6RA7075-6DV62-0
6RA7031-6DV62-0
PP865
A5E02122233-5
APBU-44C
NBRA-669C
HARS700/055
5SHY35L4510
FGC6000AX-120DS
GCU15DB-130
DSAI146
A06B-1411-B150
AF1250-30
SCYC55830
SCYC51040
PPB022BE
UPB011BE HIEE401096R1
SCYC50025
VDA330A
CPU板/SDA338AE
CIMR-G7A4045
A06B-6107-H002
VD4 4012-25M
VD4 4020-31M
SST-PFB3-VME-2
3BHE021951R0124
3BHE006412R0101
3BHE024577R0101
3BHE003604R0102
3BHE024855R0101
6FC5210-0DF22-2AA0
20BD248A0ANNANC0
3RW4443-6BC44
VFD1600F43A
6GK7443-1GX30-0XE0
1444-DYN04-01RA
SK66CAOMS1600
HTPUXX/120-AC3
129740-002
3HAC5687-1
3BHB002751R0106
ATV71HD37N4Z
ATV71HD45N4Z
ATV71HD30N4Z
ATV71HD55N4Z
GD200A-200G/220P-4
VFD1600F43A160KW215HPAC380
TSXMRPC007M
UFC760BE142
XVC767AE102
BUM60-03/06-54-B-001
6SL3224-0BE41-1UA0
6DD1640-0AH0
PFEA112-65
1142075-2
DT500-A111
506.SY0001.09
HPU690/061MB2
CIMR-XCHA20P7
pm582-eth
5466-315
5466-316
5441-693
3HAC020466-001
3HAC14549-3/09A
CRV-DLDFMPDVI
CRV-SRDFMPDVI
PHARPS32200000
CE15UN3
PNI800
3BHE014185R0001
3BHE014185R0002
A06B-6134-H202#C
TSXP572634M
HCS02.1E-W0070-A-03-NNNN (R911298372)
6DD1607-0AA2
CI854A
A06B-6290-H209
2711-K10C15
MVI56-MNET
MVI56-MCM
MVI56-PDPMV1
1756-L62/B
2094-BC02-M02-S
AAI143-S53A4D00
AAI143-S53
AAI143-S53A4S00
6FC5210-0DF21-2AA0
A06B-6127-H209
A06B-0266-B100
CI522A
HMS01.1N-W0020-A-07-NNNN
HCS02.1E-W0012-A-03-NNNN
CSH01.1C-SE-ENS-EN2-NNN-NNN-NN-S-NN-FW
590P-53327032-P41-U4A0
2711P-T7C4D1
PGH5-30/250RE07VE4/内齿轮泵
1769-L32E
HPU690/061MB2
PPC907BE 3BHE024577R0101
3BHE021951R0124 KVC758A
5SHX0660F0002/3BHB018104R0001
UFC921A101 3BHE024855R0101
2UBA001855R0501 3BHB027324R2010
6SE7024-7TD61-ZG93+K11+L33
6ES7417-4XT05-0AB0
2UBA004416R0006
P-HC-BRC-30000000
100-G1200KN12
6RA7086-6KV62-0
TSXETY4103
TSXH5744M
TSXPSY5500M 2
TSXSCY21601 2
TSXDEY16D2 2
BMEH582040
LK210
6FC3988-7FC20
6RA8091-6DV62-0AA0-Z G00+G20
6FC5210-0DF31-2AA0
07AC91
ATV61HC50Y
288055-01
DSPC171 57310001-CC
57C552
57C435
57C417
57C416
57C552-1
57C411
57C493
57C413B
45C922
45C997
45C992
57C554
6DD1600-0BB0
6DD1661-0AE1
6DD1661-0AD1
3HNA013224-001
3HAC029157-001/07
PPD103 B03-10-151000 3BHE023584R10
HONEYWELL TRANSCEIVER 30752766-001 (XLNT COND)
HONEYWELL COMMUNICATIONS LOGIC 30752787-002 (XLNT COND)
SIEMENS 6FX1121-2BA03 CONTROL MODULE GOOD TAKEOUT
SIEMENS 6FX1151-1BB01 CONTROL MODULE GOOD TAKEOUT
YASKAWA CPCR-FR02RB SERVOPACK GOOD TAKEOUT
FANUC A05B-2400-C061 (4 SLOT BACKPLANE) GOOD TAKEOUT
KUBLER/TURCK T8.5860.2131.3001 ROTARY ENCODER (NEW)
FLAKT V.4535332.0400 EPIC WITH SEMIPULSE CONTROLLER GOO...
FUJI FVR008G7S-2 ( 1 HP DRIVE) REFURBISHED
NIKKI DENSO ACTUS POWER NPSA-GMDA-401YZ-A2 GOOD TAKEOUT
TEXAS INSTRUMENT 525-1102 CPU MODULE GOOD TAKEOUT
ALLEN BRADLEY 8600-2163B MEMORY MODULE OSAI 0S5330P GOO...
MOELLER EM4-101-DD2 EPANSION MODULE GOOD TAKEOUT
MOELLER DV4-340-3K0 DRIVE (400/500 V) GOOD TAKEOUT
RELIANCE ELECTRIC 0-51865-1 CLDB MODULE
BOSCH LT303 SERVO AMPLIFIER 0608750084 GOOD TAKEOUT!
MITSUBISHI CIN624A808G54A (MC724-1) GOOD TAKEOUT
MITSUBISHI A2NCPUR21 MELSEC CPU MODULE GOOD TAKEOUT
FANUC A16B-2202-0400 /07B OPTION 2 MODULE GOOD TAKEOUT
YASKAWA SERVOPACK CPCR-MR-0RC-C GOOD TAKEOUT
RELIANCE VS DRIVE GP-2000 (2GU41005) 6.5 KVA , 5 HP
MITSUBISHI ADU80A B1008 POWER SUPPLY GOOD TAKEOUT
YASKAWA SERVOPACK CACR-PR01AA4 AH GOOD TAKEOUT
Fanuc A16B-1212-0471 /03A Power Supply Unit ~Refurbish...
SIEMENS 6SC6100-0NA01 ANALOG CONTROL BOARD EXCELLENT CO...
HONEYWELL 51304286-100 REV.H CS/R MCPU BOARD BRAND NEW ...
YASKAWA CIMR-G5M44P0 MAGNETEK GPD515 (7.5 HP) GOOD TAKE...
NACHI HCD MWB-1 CIRCUIT BOARD EXCELLENT CONDITION
NACHI SUA451B SERVO AMP UNIT GOOD TAKEOUT
YASKAWA JANCD-1003E SMALL BOARD JANCD-EW02 * LNC *
GE DRIVE 6KGP43005X9XXXA1 AF-650 GP 5 HP. 460V *XLNT*
SIEMENS 6ES5470-4UA11 SIMATIC ANALOG MODULE
FANUC A16B-1212-0270 /05A LASER INTERFACE BOARD *XLNT*
SIEMENS 6FX1135-6BA01 CNC CARD *XLNT CONDITION*
YASKAWA JANCD-MI004 DF92012214 CNC BOARD XLNT CONDITION
DANFOSS 195N1013 DRIVE VLT2807PT4B20STR0DBF00A00 NEW
CINCINNATI MILACRON 3-542-1173A CMDCO BOARD EXCELLENT...
MITSUBISHI FX26B BN634A324H03 MAZAK BOARD GOOD TAKEOUT
ALLEN BRADLEY 1389-AA09 SERVO AMPLIFIER GOOD USED UNIT
HONEYWELL RA890F 1304 PROTECTOR RELAY NEW IN BOX
SIEMENS 6GK5208-0BA00-2AA3 SCALANCE X208 ETHERNET SWITC...
YUSHIN ROBOT TEACH PENDANT PULLED FROM WORKING ROBOT
ALLEN BRADLEY 8600 5441 OSAI OS5441 XLNT CONDITION
KIKUSUI KSG4110 FM-AM SIGNAL GENERATOR 0.1-110 MHZ
CINETIC AU45RC-40 AXIS CONTROL UNIT GOOD WORKING UNIT
MITSUBISHI MELSEC K0J2-E56DS SEQUENCE CONTROLLER (NEW)
Reliance Electric VCIB-06 Vectrive AC Servo Control
FANUC A16B-1210-0810 /04A PMC-M MANUFACTURER REFURBISHE
BALOGH BI-1746/AA PLUG-IN MODULE NEW IN BOX
KEARNEY TRECKER 810-21743-00 I/O DISTRIBITION GOOD TAKE...
KEARNEY TRECKER 810-21762-01 GOOD TAKEOUT
KEARNEY TRECKER 810-21205-08 GOOD TAKEOUT
KEARNEY TRECKER 1-21711 FEEDBACK ENCODER GOOD TAKEOUT
REXROTH VT5008 S15 PROP AMPLIFIER XLNT CONDITION!
FUJI FVR-037G5B FREQUENCY DRIVE (5 HP) AC 200-230 VOLT ...
INTEL RP21989 PC BOARD GOOD TAKEOUT
LEUKHARDT SMU 927103.08 (SMU P. 908-806) NEW IN BOX
FANUC A16B-2200-0173 PCB F15 M/T REPAIRED BY FANUC
FANUC A16B-2200-0092 /07A AXES CONTROL BOARD 15 M/T
ALLEN BRADLEY 1775-L4 MAIN PROCESSOR REFURBISHED
MITSUBISHI BN624A182H03 (FX04B) GOOD TAKEOUT
GIDDINGS & LEWIS 502-02823-00 501-03230-00 MEMORY INT...
TOYO DENKI QSS364-B1 DRIVE GOOD TAKEOUT
MAYATECH CORPORATION DRIVE MODULE 812282 (16 CODE) NEW
EMERSON 03-777851-20B SYNC & TRANSFER BOARD (NEW)
MITSUBISHI KX41N MELSEC-K SEQUENCE CONTROLLER INPUT UNI...
ALLEN BRADLEY 2706-C21J8A1 DISPLAY SER-D GOOD TAKEOUT
ABB (ASEA YYT 102C) 2668 180-526/1 ( REPAIRED )
ABB (ASEA YYT 102C) 2668 180-586/1 ( REPAIRED )
GENERAL ELECTRIC 193X711AEG03 POWER AMPLIFIER
CINCINNATI MILACRON 3-533-0071G CONTROL CARD GOOD TAKEO...
KEARNEY TRECKER 871-21284-01 GOOD TAKEOUT
HONEYWELL 51304542-100 I/O CONTROL BOARD KLCN BRAND NEW...
FANUC A16B-1210-0490 /04B MPC INTERFACE GOOD TAKEOUT
PECO DOUBLE SHEET DETECTOR MODEL FM (C3047 M.0.0758) GO...
SIEMENS 6ES7811-0CC06-0YE5 SIMATIC S7-GRAPH V5.3 INCL. ...
WESTINGHOUSE NL-1077 RACK BUS EXPANSION MODULE GOOD TAK...
OMRON SCY-P0R10E SYSMAC I/O MODULE (AC 100/110/120/200/...
SIEMENS 6FC5247-0AA36-0AA1 CONTROL MODULE NEW SURPLUS
OMRON F200-C10E IMAGE PROCESSING UNIT GOOD TAKEOUT
DELTA RMC100 (RS-232 MONITOR) GOOD TAKEOUT
OMRON CV500-RT211 REMOTE I/O UNIT GOOD TAKEOUT
ALLEN BRADLEY 8600 F39B (CPU BOARD) OSAI OS5001V
SIEMENS 6ES5350-3KA21 MEMORY MODULE (REFURBISHED)
FANUC A06B-0512-B301 SERVO MOTOR (2000 RPM) REMAN
AIR MONITOR CORPORATION 010-PDIT-`183 VELTRON II PRESSU...
ALLEN BRADLEY 8600 OS5241L (CNC BOARD) OSAI GOOD TAKEOU
MITSUBISHI PD14A POWER SUPPLY GOOD TAKEOUT
ABB ACS350-03U-09A8-2 DRIVE (3 HP) BRAND NEW!
Enlarge
ABB BHW 8/20/150 DC (BHL SERVO AMP) GOOD TAKEOUT
ALLEN BRADLEY 119471 BASE DRIVER NEW SURPLUS
SIEMENS SMP-E213-A2 PARALLEL EINGABE INPUT (NEW IN BOX)
SIEMENS C8451-A11-A12-1 (SMP-E135) I/O ANALOG INTERFACE...
ELECTRO-FLYTE 12M24-00018-15 GOOD TAKEOUT
HONEYWELL UDA2182 DUAL ANALYZER UDA2182-PH1-NN2-NN-N-0E...
FISHER ROSEMOUNT 08712-0741-0003 ALARM MODUE (NEW IN BO...
SIEMENS SMP-E431-A5 POWER SUPPLY NEW IN BOX
SIEMENS 6ES7 960-1AA04-0XA0 CENTRAL PROCESSING UNIT (NE...
SIEMENS 6SE7090-0XX84-0FJ0 COMMUNICATION BOARD
ROSEMOUNT 54EC-01 CONDUCTIVITY ANALYZER NEW SURPLUS
E+H MULTI-POINT LSC 1135 CAPACITANCE LEVEL SWITCH
VICKERS FAS T-1V2-060-00-00-00 BRUSHLESS 6000 RPM (NEW)
MITSUBISHI AD75P2 MOTION CONTROLLER GOOD TAKEOUT
VICKERS EEA-PAM-525-C-32 AMPLIFIER CARD GOOD TAKEOUT
HONEYWELL 30750338-005 COMMUNICATION MODULE TDC 2000 PW...
FANUC A14B-0070-B105 INPUT UNIT GOOD TAKEOUT
RELIANCE ELECTRIC HR2000/BLA-08 SERVO DRIVE GOOD TAKEOU...
FANUC A20B-1001-0930 POWER UNIT GOOD TAKEOUT
HONEYWELL 60130572-001 (BF4MDC) PC BOARD GOOD TAKEOUT
FISHER ROSEMOUNT 08712-0741-0003 ALARM MODUE (NEW IN BO...
SIEMENS SMP-E431-A5 POWER SUPPLY NEW IN BOX
SIEMENS 6ES7 960-1AA04-0XA0 CENTRAL PROCESSING UNIT (NE...
SIEMENS 6SE7090-0XX84-0FJ0 COMMUNICATION BOARD
ROSEMOUNT 54EC-01 CONDUCTIVITY ANALYZER NEW SURPLUS
E+H MULTI-POINT LSC 1135 CAPACITANCE LEVEL SWITCH
VICKERS FAS T-1V2-060-00-00-00 BRUSHLESS 6000 RPM (NEW)
MITSUBISHI AD75P2 MOTION CONTROLLER GOOD TAKEOUT
VICKERS EEA-PAM-525-C-32 AMPLIFIER CARD GOOD TAKEOUT
HONEYWELL 30750338-005 COMMUNICATION MODULE TDC 2000 PW...
FANUC A14B-0070-B105 INPUT UNIT GOOD TAKEOUT
RELIANCE ELECTRIC HR2000/BLA-08 SERVO DRIVE GOOD TAKEOU...
FANUC A20B-1001-0930 POWER UNIT GOOD TAKEOUT
HONEYWELL 60130572-001 (BF4MDC) PC BOARD GOOD TAKEOUT
BOSCH INTERFACE BOARD 0 811 405 071 (JB01) NEW IN BOX
ANILAM ELECTRONICS PCB504 CRUSADER M HIGH SPEED COUNTER
B&R HCMM2M-0 (MODULE MAESTRO EXPANSION MEMORY) GOOD TAK...
RELIANCE ELECTRIC 14C109A FLEXPAK PLUS 5 HP GOOD TAKEOU...
ABB ACS143-2K7-3-U (3 HP VARIABLE FREQUENCY DRIVE) NEW ...
SIEMENS 6ES5 318-8MA12 SIMATIC INTERFACE MODULE (NEW)
ABB SDCS-COM-1 DRIVE LINK BOARD GOOD TAKEOUT
EUROTHERM 2627 SERIES 2000 INTERFACE ADAPTER WITH CABLE...
ALLEN BRADLEY 702-EOA92 SIZE 4 AC CONTACTOR NEW IN BOX
POWERTEC C001.5N1CH032 BRUSHLESS CONTROL 500 (1 HP) GOO...
RELIANCE ELECTRIC HR2000/BLA-16 SERVO DRIVE GOOD TAKEOU...
QUADTECH 7605-5600-02 ENCODER RATIO- 2:1 (NEW)
NIKKI DENSO ACTUS POWER NPSA-4J-45 GOOD TAKEOUT
FANUC A06B-0522-B031 SERVO MOTOR MODEL 1-0 GOOD TAKEOUT
RELIANCE ELECTRIC SP 500 VS DRIVE 1SU41002 (2 HP)
SIEMENS 6ES7 326-1BK01-0AB0 SIMATIC S7 MODULE GOOD TAKE...
SIEMENS 6ES5 465-7LA11 ANALOG INPUT GOOD TAKEOUT
RELIANCE ELECTRIC HR2000/BLA-12 SERVO DRIVE GOOD TAKEOU...
ALLEN BRADLEY 8600 1880L (CPU BOARD) OSAI OS5001V
ALLEN BRADLEY 8600 1882FL (MEMORY MODULE) OSAI OS5241
FUJI UM31B-02 INTERFACE CONTROL BOARD GOOD TAKE OFF
SIEMENS 6ES7400-1JA11-0AA0 RACK/CHASSIS BRAND NEW!!
SIEMENS 647101.0400.01 CONTROL CARD GOOD TAKEOUT
MITSUBISHI BN634A257G52 (MC456A) GOOD TAKEOUT
MITSUBISHI CIN624A822G52A (MC301B) GOOD TAKEOUT
BOSCH 0 608 830 158 TIGHTENING SYSTEM 6 SLOT RACK
HONEYWELL UDA2182 DUAL ANALYZER UDA2182-PH1-NN2-NN-N-0E...
RELIANCE ELECTRIC 2DB4010 (AC VS DRIVE D.B. UNIT) GOOD ...
FANUC A20B-0005-0700 /04C GOOD USED TAKEOUT
EUROTHERM CHESSELL D103950-001-01-01-5098-K12 (NEW SURP...
SANYO DENKI 65BA008VXKH0 (BL SUPER) SERVO AMPLIFIER GOO...
SAFTRONICS CIMR-G3U45P5+ (7.5 HP AC DRIVE) GOOD TAKEOUT
MITSUBISHI RT-XC-11 PICKUP UNIT GOOD TAKEOUT
MITSUBISHI BN624A550G52A MAZAK FX23ID (XLNT CONDITION)
SIEMENS 505-CP2572 SINEC ETHERNET TCP/IP GOOD TAKEOUT
ALLEN BRADLEY 6171-IDH INTERFACE MODULE DATA HIGHWAY
ABB (ASEA DSMB 127) 2668 184-584/2 BRAND NEW
YASKAWA JZNC-TU60-3 MOTOMAN ERC POWER SUPPLY *XLNT*
YASKAWA CPCR-IN02C SERVOPACK GOOD TAKEOUT
ALLEN BRADLEY 8600-1966X CNC MODULE
GENERAL ELECTRIC B2002020AH PCB CONTROL BOARD GOOD TAKE...
NSD CORPORATION VS-10B-UNNP-1-1.1 (100-240 VAC) XLNT
SIEMENS 6ES5430-3BA11 DIGITAL INPUT MODULE NEW IN BOX
SIEMENS 6ES5450-3AT11P OUTPUT MODULE (REFURBISHED)
FANUC A16B-1212-0240 /05A SERIAL I/O CARD NEW OLD STOCK
FANUC A20B-1003-0340 /02A CRT / KB BOARD RECONDITIONED
CINCINNATI MILACRON 3-533-0350G PC BOARD EXCELLENT CON...
TWK-ELEKTRONIK SWF 15B-01 ANGLE CONVERTER