1、基本概念
我們生活在一個物質的中。世間所有的物質都包含了化學和物理特性，我們是通過對物質的表觀性質來了解和表述物質的自有特性和運動特性。這些表觀性質就是我們常說的質量、溫度、速度、壓力、電壓、電流等用數學語言表述的物理量，在自控領域稱為工程量。這種表述的優點是直觀、容易理解。在電動傳感技術出現之前，傳統的檢測儀器可以直接顯示被測量的物理量，其中也包括機械式的電動儀表。
2、標準信號
在電動傳感器時代，中央控制成為可能，這就需要檢測信號的遠距離傳送。但是紛繁復雜的物理量信號直接傳送會大大降低儀表的適用性。而且大多傳感器屬於弱信號型，遠距離傳送很容易出現衰減、幹擾的問題。因此才出現了二次變送器和標準的電傳送信號。二次變送器的作用就是將傳感器的信號放大成為符合工業傳輸標準的電信號，如0－5V、0－10V或4－20mA（其中用得多的是4－20mA）。而變送器通過對放大器電路的零點遷移以及增益調整，可以將標準信號準確的對應於物理量的被檢測範圍，如0－100℃或-10－100℃等等。這是用硬件電路對物理量進行數學變換。中央控制室的儀表將這些電信號驅動機械式的電壓表、電流表就能顯示被測的物理量。對於不同的量程範圍，只要更換指針後面的刻度盤就可以了。更換刻度盤不會影響儀表的根本性質，這就給儀表的標準化、通用性和規模化生產帶來的無可限量的好處。
3、數字化儀表
到了數字化時代，指針式顯示表變成了更直觀、更的數字顯示方式。在數字化儀表中，這種顯示方式實際上是用純數學的方式對標準信號進行逆變換，成為大家習慣的物理量表達方式。這種變換就是依靠軟件做數學運算。這些運算可能是線性方程，也可能是非線性方程，現在的電腦對這些運算是易如反掌。
4、信號變換中的數學問題
信號的變換需要經過以下過程：物理量－傳感器信號－標準電信號－A/D轉換－數值顯示。
聲明：為簡單起見，我們在此討論的是線性的信號變換。同時略過傳感器的信號變換過程。 假定物理量為A，範圍即為A0－Am，實時物理量為X；標準電信號是B0－Bm，實時電信號為Y；A/D轉換數值為C0-Cm，實時數值為Z。
如此，B0對應於A0，Bm對應於Am，Y對應於X，及Y=f(X)。由於是線性關係，得出方程式為Y=(Bm-B0)*(X-A0)/(Am-A0)+B0。又由於是線性關係，經過A/D轉換後的數學方程Z=f(X)可以表示為Z=(Cm-C0)*(X-A0)/(Am-A0)+C0。那麼就很容易得出逆變換的數學方程為X=(Am-A0)*(Z-C0)/(Cm-C0)+A0。方程中計算出來的X就可以在顯示器上直接表達為被檢測的物理量。
5、PLC中逆變換的計算方法
以S7-200和4－20mA為例，經A/D轉換後，我們得到的數值是6400－32000，及C0=6400，Cm=32000。於是，X=(Am-A0)*(Z-6400)/(32000-6400)+A0。 例如某溫度傳感器和變送器檢測的是-10－60℃，用上述的方程表達為 X=70*(Z-6400)/25600-10。經過PLC的數學運算指令計算後，HMI可以從結果寄存器中讀取並直接顯示為工程量。
用同樣的原理，我們可以在HMI上輸入工程量，然後由軟件轉換成控制係統使用的標準化數值。
在S7-200中，(Z-6400)/25600的計算結果是非常重要的數值。這是一個0－1.0（100％）的實數，可以直接送到PID指令（不是指令向導）的檢測值輸入端。PID指令輸出的也是0－1.0的實數，通過前面的計算式的反計算，可以轉換成6400－32000，送到D/A端口變成4－20mA輸出。
以上講述的是PLC中工程量轉換的基本方法，程序的編寫則因人、因事而異。但是萬變不離其衷。如果大家感興趣，我可以給出自己編寫的程序供大家參考，同時也希望各位網友不吝賜教、互相交流。
咨詢熱線：18150695049
誠信經營，質量為首，誠信至上，鼎晟達竭誠為您服務
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~`
漳州鼎晟達自動化設備有限公司
聯係人：藍經理（銷售經理）
手機 ：18150695049(微信同步）
QQ ：2880842794
郵箱 ：2880842794@qq.com
傳真 ：0596-3119658（請備注林工收）
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
*所有備件的質保期均為1年，經過專業測試認證。
*如果您需要訂購產品超過1件，請與我們聯係，我們可以為您提供折扣。
*我們僅採用快遞方式遞送備件。（順豐）
*如果您發現其他供貨商為相同產品提供更為低廉的價格，我們也願意參照其價格向您提供進一步的折扣。如果還有其他任何問題，請隨時與我們聯係。
*請讓我們知道您有任何，備品，備件，的需要，我們可以給您進一步的援助，我們等候您的詢盤。
【主營產品】
1：Invensys Foxboro（福克斯波羅）：I/A Series係統，FBM（現場輸入/輸出模塊）順序控制、梯形邏輯控制、事故追憶處理、數模轉換、輸入/輸出信號處理、數據通信及處理等。
2：Invensys Triconex: 冗餘容錯控制係統、基於三重模件冗餘（TMR）結構的現代化的容錯控制器。
3：Westinghouse（西屋）： OVATION係統、WDPF係統、WEStation係統備件。
4：Rockwell Allen-Bradley: Reliance瑞恩、SLC500/1747/1746、MicroLogix/1761/1763/1762/1766/1764、CompactLogix/1769/1768、Logix5000/1756/1789/1794/1760/1788、PLC-5/1771/1785等。
5：Schneider Modicon（施耐德莫迪康）：Quantum 140係列處理器、控制卡、電源模塊等。
6：ABB：工業機器人備件DSQC係列、Bailey INFI 90等。
7：Siemens(西門子)：Siemens MOORE， Siemens Simatic C1，Siemens數控係統等。
8：Motorola（摩托羅拉）：MVME 162、MVME 167、MVME1772、MVME177等係列。
9：XYCOM：I/O 、VME板和處理器等。
10：GE FANUC(GE發那科)：模塊、卡件、驅動器等各類備件。
11：Yaskawa（安川）：伺服控制器、伺服馬達、伺服驅動器。
12：Bosch Rexroth（博世力士樂）：Indramat，I/O模塊,PLC控制器,驅動模塊等。
13：Woodward（伍德沃德）：SPC閥位控制器、PEAK150數字控制器。
14:工業機器人係統備件。
NEW BUSS FUSES JCL-4R MEDIUM VOLT MOTOR FUSE - BOX IS WORN
ALLEN BRADLEY 60 AMP 2100 FEEDER BREAKER STARTER BUCKET
BAILEY infi 90 NBIM01 NBIM-01 BUS INTERFACE CARD 6631093M1 #46
minisafe B STI MS4312B light curtain sensor banner mini receiver
NEW ROBERT SHAW SIEBE ENVIROMENTAL CONTROLS MPC-4AO ANALOG OUTPUT MODULE CARD
TRICONEX 7400056-310 REV B3 DI EXTERNAL TERMINATOR 2553-1 24V WITH COVERS
minisafe B STI MS4312B light curtain sensor banner mini transmitter
JEOL V-DRIVE PB-SP000433(00)2 CIRCUIT BOARD ON MOUNT CARD
NEW NO BOX Simplex panel card 4100 565-333F 565-333-F UT MASTER CONTROLLER
CUTLER HAMMER UNITROL F10 50 AMP BREAKER FEEDER MCCB MCC BUCKET HANDLE
CUTLER HAMMER TYPE W SIZE 1 MOTOR STARTER 20 AMP BREAKER MCC BUCKET 12'' PATCH
GE 7700 SERIES SIZE 2 MOTOR STARTER 60 AMP 600V F MCC MCCB BUCKET
NEW THE LOGICA GROUP CD5020-VAVR DIGITAL CCD COLOR DOME CAMERA 1/3" SONY SUPER
NEW ASCO RED HAT F210D95K 3/4" PIPE AIR OPERATED VALVE #694
DANFOSS 195H3301 VARIABLE SPEED AC DRIVE VLT 2020
sick micro c4000 c41e-0301ag300 sensor banner light curtain sickmicro
WESTINGHOUSE CH TYPE W SIZE 1 STARTER 20 AMP BREAKER MCC BUCKET NO DOOR
SIMPLEX FIRE ALARM 4120 NETWORK INTERFACE ASSY 565-694 C1 CIRCUIT BOARD
New Barksdale Explosion Proof P1X-H30SS-T Hi Pressure Switch .5-30 psi
ABB Digital Field Communication Interface Module CI810A CL810A
NEW SQUARE D FGA FGA240302 FGA24030 AMP 30 BREAKER
NEW SIMPLEX *BOX FACTORY SEALED* 4010-9810 0742155 DACT COMMON EVENT REPORTING
ABB Kent-Taylor MOD 30XL Controller 1701RZ14003D-91100331 Circuit Board
RAYTEK RAYT3P THERMALERT 3 PLUS MONITOR
NEW GILBARCO MARCONI T17533-G1R T-17533-G1R REGULATOR BOARD
NEW GILBARCO MARCONI T17840-G2R T-17840-G2R REGULATOR BOARD
GE AF 300 DRIVE 6KE$3PCU 100~240V 50/60HZ 981842B002
commander cd75 AC Drive vsd vfd 3 phase 380-460v volt 1hp 1 hp 50hz 60hz .75kw
lg is3 sv022is3-4 AC Drive vsd vfd 3 phase 460v volt 3hp 3 hp 50hz 60hz 400hz
GE 8000 30 AMP 600V F FUSIBLE HALF 6'' FEEDER MCC MCCB BUCKET
NEW COSTAR CDC2500H F/W VER 3.41D H/W VER V2.1 DOME CAMERA
SQUARE D GP GROUND CENSOR GROUND FAULT RELAY 200-1200 AMP 600V GP-200B GP200B
Westinghouse A210M0CAC Size 0 Reversing Motor Starter 5HP 575v Volt 18 Amp 120v
GE CR306G0**XBNA CR306G0 Size 5 Motor Starter 200hp 600v Volts 270 Amp 480v Coil
ALLEN BRADLEY 2100 60 AMP 240V FUSIBLE F DUAL TWIN FEEDER MCC BUCKET
ITE SIEMENS 5600 5640 DUAL 60 100 AMP BREAKER FEEDER MCC MCCB BUCKET
Siemens 3TF56 Starter Contactor 3 Phase 400HP 400 Amp 600v Volt 480v Coil
Cypress Security Solutions ZE-SPX-1300 Suprex SPX-1300 Central/remote
New Festo VADMI-45-N Vaccum Generator 20.4-26.4V DC
CUTLER HAMMER TYPE W SIZE 1 REVERSING STARTER 15 AMP BREAKER MCC MCCB BUCKET
CUTLER HAMMER TYPE W SIZE 1 STARTER 15 AMP BREAKER MCC MCCB BUCKET 12''
CUTLER HAMMER TYPE W SIZE 1 STARTER 15 AMP BREAKER MCC MCCB BUCKET HOA 12''
NEW JOKAB SAFETY JSR2A 24VAC EXPANSION RELAY
NEW GE SGDA SGDA32AT0400 3 POLE 400 AMP 240v CIRCUIT BREAKER NEW IN BOX
2" keystone tyco morin actuator butterfly valve k-switch postition pneumatic
NEW SCHUBERT & SALZER 7031 ANGLED BODIED FLANGE VALVE BEST NR. 7031/040V2920014
ITE SIEMENS 6500 SIZE 2 KVA 15 AMP 2 POLE BREAKER MCC MCCB BUCKET
NEW APPLETON AAU-1N EXPLOSION PROOF LIGHT FIXTURE 100W 300V MAX A-51 SERIES
sti optosafe pl4080 25632ud transmitter safety light curtain sensor banner
Barber-Coleman Network 8000 Local Control Module LCM-88210-1 Fire Alarm
GE GENERAL ELECTRIC FANUC IC3600AFGA1D1B CIRCUIT BOARD CARD
ITW RANSBURG 9040 CASCADE LOW VOLTAGE MODULE W/ BOARDS 76985-18 & 76892-05
UTICOR PMD 450 76711-16 REV A PROGRAMMABLE MESSAGE DISPLAY
ITW RANSBURG 76604-02 PNEUMATICS MODULE
WESTINGHOUSE LBB LBB3400W 3 POLE 400 AMP TRIP 600V CIRCUIT BREAKER 2
WESTINGHOUSE CUTLER HAMMER TYPE W SIZE 1 MOTOR STARTER 15 AMP BREAKER MCC BUCKET
NEW HUBBELL 2210-132CC13S PILOT DUTY SPEED SWITCH
NEW GILBARCO MARCONI T-19108-G1R 367704 LCD DISPLAY BOARD G-1-R
NEW GILBARCO MARCONI T-12084-G3R 358858 LOGIC BOARD G-3-R
new SLOAN 8186 OPTIMA PLUS ROYAL FLUSHOMETER 1.5 GPF / 5.7 LPF
FEDERAL PACIFIC FPE 4204 SIZE 4 CU43-26 MODEL C 120V COIL MOTOR STARTER
NEW 8" STOCKHAM LG722-DS3-B BUTTERFLY VALVE WITH 50:1 MANUAL ACTUATOR
FEDERAL PACIFIC FPE 4204 SIZE 4 CU43-51 MODEL C 120V COIL MOTOR STARTER
FEDERAL PACIFIC FPE 4204 SIZE 3 CU33-26 MODEL C 120V COIL MOTOR STARTER
GILBARCO MARCONI VERIFONE T20270-G2R G-SITE CIRCUIT BOARD CORE
Circuit Board 55-482-J I-2484998 C1 I-2483998 J2
PACIFIC SCIENTIFIC N31HRFG-LSS-M2-02 POWER PAC 1.8 DEG. STEP MOTOR
NEW SIMPLEX 4100-8901 ADD ON'S FOR 4100 4602-9503, 562-974 3 EXPANSION BAYS
NEW SIMPLEX 4100-8901 ADD ON'S FOR 4100 562-974 3 EXPANSION BAYS 4602-9503 "B"
NEW SMC MGPL80-200-HL COMPACT GUIDE CYLINDER WITH REAR LOCK AND BALL BUSHINGS
honeywel linput module plc pcu card 621-3580r 6213580r 24 volts
New Square D Trilliant SDT 2 pole 50 amp 120/240v SDT250 Circuit Breaker
SQUARE D CM-250 CLASS 3020 CAT NO. CM250X1 POWER LOGIC CIRCUIT MONITOR NO KEY
PHOTOSWITCH 61LJ2-1000 DUAL PROBE PHOTO SWITCH
New in Box Schindler Circuit Board HPBHNA Circuit Board
flexsafe fs4300b-2 fs4312b-2r-3 sensor banner light curtain flex safe
New In Box Siebe MPC-4C0 Environmental Controls Fire Alarm
GROVHAC SERIES 10- 1102 STANCHION MIXER
SQUARE D TELEMECANIQUE 30618-006 SY MAX PC BOARD 30
NEW THOMAS CAPRI LIGHTING KP136W WEIGHTED BASE LOW VOLT
GE 8000 SERIES SIZE 2 MOTOR STARTER FUSIBLE F MCC MCCB BUCKET FVNR
ALLEN BRADLEY FLEX I/O 1794-1F41 ISOLATED ANALOG INPUT
enclosure MOTOR STARTER nema 12 breaker hoffman COMBINATION DISCONNECT AGE22
enclosure MOTOR STARTER nema 12 breaker hoffman COMBINATION DISCONNECT AGE23
enclosure MOTOR STARTER nema 12 breaker hoffman COMBINATION DISCONNECT AGE24
enclosure MOTOR STARTER nema 12 breaker hoffman COMBINATION DISCONNECT AGE25
enclosure MOTOR STARTER nema 12 breaker hoffman COMBINATION DISCONNECT AGE26
GE GENERAL ELECTRIC TRD 2 POWER SUPPLY CIRCUIT BOARD CARD
ALTECH CONTROLS SSPC-CPU AA-008-00 CIRCUIT BOARD CARD
ALTECH CONTROLS SSPC-CPU-SL AA-008-40 CIRCUIT BOARD CARD
DAY LMU-TS-2 LMUTS2 CIRCUIT CONTROL BOARD
NEW MONARCH LIGHT LITHONIA LIGHTING KSFU400SR3TBRP12 120/208/240/277
YAMATAKE HONEYWELL P-ETP13 TERMINAL PANEL J-TPF20 DIGITAL INPUT ENH KIT
NEW KELK AMPLIFIER AX3 LOAD CELL - IN BLACK BOX
SQUARE D KI KI36225 3 POLE 225 AMP 600V CIRCUIT BREAKER GRAY
GENLYTE THOMAS LUMINAIRE FITTING A16 QUARTZ DC BAYONET T-4 250 WATT LIGHTING
INDRAMAT DIM02 109-0919-4801-05 CIRCUIT BOARD CARD PLC FIRE ALARM
VFD abb acs601-0003-2-000b1200801 208 240v volt drive
New Panasonic PODV7CPNS camera outdoor housing dome
reliance 1ac4007u- DRIVE AC Drive vsd vfd 3 phase 460v volt 7.5hp 7.5 hp
JEOL EVAC 2-PB SP000465(00) CIRCUIT BOARD CARD
JEOL MOTHER BOARD SP00045-00 CIRCUIT BOARD CARD SP00045(00)
Indramat software 2ad100d as131/007-000 1 card hssIV kda 3.3
INDRAMAT AS131/007-000 HSS1V1.3 POWER SUPPLY SERVO CONTROLLER MODULE SOFTWARE #8
INDRAMAT AS131/007-000 HSS1V1.5 POWER SUPPLY SERVO CONTROLLER MODULE SOFTWARE #9
INDRAMAT AS131-007-000 HSS1V1.3 POWER SUPPLY KDA CONTROLLER MODULE SOFTWARE #3
ALLEN-BRADLEY C1336s-brf15-ae-de4 AC DRIVE 480v
NEW Square D QOB QOB3125VH 3 Pole 125 Amp 240v Circuit Breaker
Square D Trilliant SDT 2 pole 100 amp 120/240v SDT2100 Circuit Breaker
New EST Edwards 5707B-001 Alarm Verification Panel
Crouse Hinds DMVS070/MT DMVS070 70 Watt 277V Lighting Fixture Explosion Proof
Emco FP-93-P-0-D-S-F FP-93-P-O-D-S-F 15-36V Dc 0.25 Amp Genius PM
New Allen Bradley 1747-NI4 1747NI4 Series A Analog Input Module SLC500
JOHNSON CONTROLS FACILITATOR AS-UNT110-1 REV K CONTROLLER
WESTINGHOUSE LB LB3400F 3 POLE 350 AMP TRIP CIRCUIT BREAKER LB3350
WESTINGHOUSE CUTLER HAMMER TYPE W SIZE 1 STARTER 15 AMP BREAKER MCC MCCB BUCKET
Danfoss Control Interface Option Circuit Board Fire Alarm Card 175L3669
Copes Vulcan 860320-00001 Arbiter Board Fire Alarm 624688050
GE 7700 SERIES SIZE 2 MOTOR STARTER 70 AMP BREAKER MCC BUCKET HOA LIGHT
SQUARE D MODEL 6 SIZE 1 MOTOR STARTER 7 AMP BREAKER MCC MCCB BUCKET
GE 7700 SERIES SIZE 2 MOTOR STARTER 70 AMP CIRCUIT BREAKER MCC MCCB BUCKET
GE 8000 SIZE 2 MOTOR STARTER 50 AMP CIRCUIT BREAKER MCC MCCB BUCKET 12''
minisafe ms 4300 ms4320bx sensor banner light curtain mini safe
GE 8000 30 AMP 600V F FUSIBLE HALF 6'' FEEDER MCC MCCB BUCKET RED HANDLE
CARDKEY DST-SI pn 11-0850-01 .5 amp 115 V 31-1152-01(2) with 2 transformers
New Simplex 565-627C Contact Closure DACT Board
CUTLER HAMMER TYPE W SIZE 1 MOTOR STARTER 15 AMP BREAKER MCC BUCKET HOA 12''
MultiComat RS-321/ATX RS321ATX RS-321-ATX 220/240V Digital Timer
WESTINGHOUSE CUTLER HAMMER TYPE W SIZE 1 STARTER 7 AMP BREAKER MCC MCCB BUCKET
NEW GILBARCO MARCONI Q-13086-62R Q13086-62R MOTHER BOARD
NEW GILBARCO MARCONI T19489-G1R T-19489-G1R CIRCUIT BOARD
CUTLER HAMMER TYPE W SIZE 1 MOTOR STARTER 15 AMP BREAKER MCC MCCB BUCKET 12''
INDRAMAT NFD03.1-480-130 POWER SUPPLY AC SERVO CONTROLLER FILTER DRIVE #5
GE 7700 SERIES SIZE 2 MOTOR STARTER 40 AMP CIRCUIT BREAKER MCC MCCB BUCKET
GE 7700 SERIES SIZE 2 MOTOR STARTER 40 AMP CIRCUIT BREAKER MCC MCCB BUCKET 24''
SQUARE D MODEL 6 SIZE 1 MOTOR STARTER FUSIBLE F FEEDER MCC MCCB BUCKET #1
GE 7700 SIZE 2 MOTOR STARTER 50 AMP CIRCUIT BREAKER MCC MCCB BUCKET 24"
HP HEWLETT-PACKARD 6253A DUAL DC POWER SUPPLY 0-20V 0-3A
WESTINGHOUSE CH TYPE W SIZE 1 STARTER 15 AMP BREAKER MCC BUCKET NO DOOR
RAMSEY CONTROLS BN251 POWER SUPPLY
ITE SIEMENS 6500 SIZE 1 REVERSING MOTOR STARTER 30 AMP BREAKER MCC MCCB BUCKET
MOORE INDUSTRIES DDA/1-5V/SH1/24DC-GR DC CURRENT ALARM #4
HONEYWELL CONTROL NETWORK MODULE 620-0038
NEW SIMPLEX 4010-9810 566-155B ALARM PANEL DACT BOARD
LANDIS & GYR POWER AO-R AOR1 CKSM-B299 533-695 CIRCUIT BOARD 600 SCU CARD
Liebert Circuit Board Card DC12I IGM Interface Panel DC12I-422/Sitelink w/key
ITE SIEMENS 5600 5640 DUAL 5 AMP BREAKER FEEDER MCC MCCB BUCKET
New Xantech IRS232 IR to RS232 Module
Teledyne Instrument Model 560 Enhanced Remote Panel
Siemens SXL-XMAIN Circuit Board 580-148440 / 315-095997 Fire Alarm
Hi-Speed Checkweighter Load Cell DS-14 100# Capacity
EMERSON 1590-4125 15904125 DCM POSITIONING CONTROL BOARD CRD
ABB Power Supply Module SD812V1 110 240v 24v
CHALLENGER CD 3 POLE 200 amp 240v CD3200W CIRCUIT BREAKER CD3200
CUTLER HAMMER CHH 2 pole 125 amp 240v CHH2125H2X Circuit Breaker
Square D KA 3 pole 225 amp 600v KA362251212 Circuit Breaker KA36225-1212 AUX
NEW SQUARE D FGA FGA240302 30 AMP 2 POLE CIRCUIT BREAKER GRAY LABEL
NEW FAFNIR / TORINGTON 312KS BALL BEARING 60mm ID x 130mm OD x 31mm W
THAYER/SCALE/HYER PCB #3 D-41416B POWER SUPPLY MOTHER BOARD
New Locknetics 505 Series 505XEIR 12/24 VDC Power Supply Fire Alarm
SQUARE D IF IF34090 3 POLE 90 AMP 480V BREAKER BLACK STYLE
NEW SIMPLEX Digital Flex 50 70v module 743-448 4100-1327 Fire Alarm Box Sealed
Benshaw CBRSM6B-250-480-12 Integral Bypass 260Hp 480V 312 Amp
GE 7700 SIZE 2 MOTOR STARTER 40 AMP CIRCUIT BREAKER MCC MCCB BUCKET 18"
NEW EATON CUTLER HAMMER CC CC3200X 3 POLE 200 AMP 240V CIRCUIT BREAKER
Phoenix Contact FL-Switch-LM-8TX Ord-No.:2832632 56 Block
NEW ALLEN BRADLEY CONTACTOR 100-C85DJ01 24v DC COIL No AUX Contact
New Agastat 7022BD 7022-BD Timing Relay 5-50 Seconds
ALLEN BRADLEY AB POWERFLEX 700 20BD3P4A0AYNAND0 2HP 480V 3PH SER A AC DRIVE
AB ALLEN BRADLEY 1756-OA16 Series A ControlLogix 16 pt D/O Module AC Output
AB Allen Bradley 1756-IA16 Series A PN 96259078 AC Input 16 pt 120 VAC 13mA
New Square D QOB QOB3125VH 3 Pole 125 Amp 240v Circuit Breaker
NEW SQUARE D 8903SQO2 120V COIL 100 AMP 600V LIGHTING CONTACTOR 3 POLE 8903SQ02
ABB Kent-Taylor Controller Process Recorder 1700JZ14005A-5917 Circuit Board
ABB Kent-Taylor Indicating Controller 1700RZ14005A-15782 Circuit Board
WESTINGHOUSE CUTLER HAMMER TYPE W SIZE 1 STARTER 30 AMP BREAKER MCC MCCB BUCKET
NEW GILBARCO MARCONI T-15879-G4 T15879-G4 KEYBOARD BOARD
WESTINGHOUSE CUTLER HAMMER MOTOR STARTER BREAKER FUSIBLE F MCC MCCB BUCKET
GE 7700 SERIES SIZE 2 MOTOR STARTER 30 AMP 600V F MCC MCCB BUCKET
NEW SIMPLEX BOX OPENED 4100-0622 DIGITAL AUDIO RISER 742-535 CIRCUIT BOARD
WESTINGHOUSE LB LB3400F 3 POLE 350 AMP TRIP 600V CIRCUIT BREAKER flawed
SIMPLEX 4100-9142,4100-2300 EXPANSION BAY 566-084 POWER DISTRIBUTION BOARD
VFD VARIABLE SPEED DRIVE AC 1.5 HP CIMR-PCU40P7
WESTINGHOUSE LB LB3400F 3 POLE 350 AMP 600V CIRCUIT BREAKER Chipped
SCHNEIDER AUTOMATION 610MDC20231 MODICON CYBERLINE M100D DIGITAL DRIVE 230V
GE 7700 SERIES SIZE 2 MOTOR STARTER 50 AMP CIRCUIT BREAKER MCC MCCB BUCKET
GE 7700 60 AMP CIRCUIT BREAKER HALF 6'' FEEDER MCC MCCB BUCKET NO DOOR
New Black Box Ethernet Transceiver LE005A / LE003A A980977538 Fire Alarm
flexsafe b fs4300-2 fs4312b-2x-1 light curtain sensor banner mini
flexsafe 4300 B sti fs4312b-2x-3 light curtain sensor banner flexsafeb
Transamerica Delaval Explosion Proof HI-Pressure P1X-J600 SS-T 25.-600. psi
NEW GILBARCO MARCONI W01517-G1R 319363 REGULATOR BOARD
TEXAS INSTRUMENT 500-2109 COMMUNICATION MODULE ASSEMBLY
WESTINGHOUSE CH TYPE W SIZE 1 STARTER 40 AMP BREAKER MCC BUCKET NO DOOR
NEW CUTLER HAMMER CHH CHH3100H2 3 POLE 100 AMP 240V CIRCUIT BREAKER
optoflex l 41030-0240 sensor banner light curtain
NEW GILBARCO MARCONI T-12517-G1r LOGIC BOARD G-1
ITE SIEMENS 6500 SIZE 2 MOTOR STARTER 50 AMP BREAKER MCC MCCB BUCKET
NEW SIMPLEX FIRE ALARM 4100-1246 BOX SEALED!! NAC MODULE FLEX 50 742-539
4D7APXID-211-E 4D7APXID211E 51301582 REV C HONEYWELL BOARD #15
HONEYWELL SERIAL LINK MODULE BOARD 621-9939
New Asco 8266D170L/F484488 1/2" pipe 15.4 watt valve
Square D Lighting Contactor 8903 SQG11 600 V 100 AMP 120V COIL 8903SQG11
EST EDWARDS MN-ABMN AUDIO BRIDGE PRE-AMP MODULE
GE 7700 SERIES SIZE 1 MOTOR STARTER 40 AMP CIRCUIT BREAKER MCC BUCKET HOA
GE 7700 SERIES SIZE 2 MOTOR STARTER 40 AMP CIRCUIT BREAKER MCC BUCKET HOA
CPC LDS ZONE SENSOR REFRIGERANT LEAK ALARM 809-160 COMPRESSOR RACK
Bently Nevada 3500 3500/15 3500-15 Ac Power Supply
WESTINGHOUSE GCA-530 SIZE 5 AC CONTACTOR 300 AMP 3 POLE 600V W/480V COIL
Benshaw CBRSM6B-250-480-12 Integral Bypass 260Hp 480V 312 Amp No Backplate
Foxboro Electrodeless Conductivity Analyzer 873EC-AIWFNZ 2NO/NC 5A120VAC
ITE SIEMENS 6500 SIZE 2 MOTOR STARTER 50 AMP BREAKER MCC MCCB BUCKET FLEXOPULSE
GE 7700 SERIES SIZE 2 STARTER CONTACTOR 60 AMP 600V F MCC BUCKET NO DOOR
SQUARE D MODEL 6 SIZE 1 MOTOR STARTER 3 AMP BREAKER MCC MCCB BUCKET
sti microsafe mc 4700 mc47lr-20-450-x safety light curtain sensor banner
NEW JOSLYN CLARK CONTACTOR, 7442-1020-11, SIZE 2, 240VDC
NEW GILBARCO MARCONI W02437-G1R 323923 POWER SUPPLY BOARD
NEW SMC ITV2030-01N2L4 PNEUMATIC RELULATOR E/P WITH CABLE 4-30 MADC 0.7-70 PSI
GE 7700 SERIES 60 AMP FUSIBLE F HALF 6'' MCC MCCB BUCKET
GE 7700 SERIES 30 AMP FUSIBLE F HALF 6'' MCC MCCB BUCKET
ITE SIEMENS 6500 SIZE 1 REVERSING MOTOR STARTER 25 AMP BREAKER MCC MCCB BUCKET
Johnson Controls Network Controller w/o arcnet NU-NCM300-1 Metasys
New ABB Control Main Contacts KZD NC SK825 202-A EHDBCK220-NC
JEOL EDA 3-PB SP000425-00 CIRCUIT BOARD CARD
MicroTherm 500A 9T59 0816BOIOL-186 Computer for Boiler 110V 6A
SQUARE D CM-2250 CLASS 3020 POWER LOGIC CIRCUIT MONITOR
Bently Nevada 3300/16-03-01-02-00-00-00 Dual Monitor XY/GAP Monitor Board
Bently Nevada 3300/20-02-01-02-00-00 Dual Thruster Monitor Card Module
NEW PULNIX PB-50F PHOTOELECTRIC BEAM SENSOR
O-Z/GEDNEY EXPLOSION PROOF LIGHT FIXTURE, 120/208/240/277V, 400 WATTS
WESTINGHOUSE CUTLER HAMMER TYPE W SIZE 1 STARTER 3 AMP BREAKER MCC BUCKET DOOR
WESTINGHOUSE 11-300 12 SPACE BREAKER PANEL PANELBOARD MCC MCCB BUCKET
EMERGENCY POWER ENGINEERING 5-00271-00D 8432-416
ALLEN BRADLEY DATALINER, DL20 MESSAGE DISPLAY, REV 62A
NEW GILBARCO MARCONI T16925-P1R T-16925-P1R KEYBOARD BOARD
NEW BARKSDALE HI PRESSURE SWITCH P1X-J340SS-T EXPLOSION PROOF
NEW GILBARCO MARCONI T20138-G1R T-20138-G1R POWER SUPPLY CIRCUIT BOARD
NEW GENERAL ELECTRIC GE CR463L40AJA10A0 30 AMP 4 POLE LIGHTING CONTACTOR 120V
ALLEN BRADLEY FUSIBLE 60 AMP FUSIBLE F FEEDER MCC MCCB BUCKET
5d73402G01 POWER SUPPLY DC-DC CONVERTER GQ1003-7R GQ2541-7R
BROWNING C950X 2 7/16 TAPERED ROLLER BEARING INSERT 2-7/16" SHAFT
CUTLER HAMMER UNITROL F10 SIZE 1 MOTOR STARTER FUSIBLE MCC MCCB BUCKET
CUTLER HAMMER UNITROL F10 SIZE 1 2 MOTOR STARTER FUSIBLE FEEDER MCCB MCC BUCKET
GE 7700 SERIES SIZE 1 MOTOR STARTER 30 AMP 600V F MCC MCCB BUCKET
NEW DANFOSS V02 VO2 AH108020 VARIABLE OUTPUT BOARD
GE 7700 30 AMP 600V FUSIBLE F HALF 6'' FEEDER MCC MCCB BUCKET
GE 7700 60 AMP 600V FUSIBLE F HALF 6'' FEEDER MCC MCCB BUCKET
New Phoenix Contact Converter Module MCR-CLP-UI/I-4
APPLETON MERCMASTER III MLBRG355QA1 EXPLOSION PROOF LIGHT LAMP 55W 90-140V
NEW JOSLYN CLARK 7001-8040-11 CONTACTOR 40 AMPS 500VDC 120V COIL 3 POLE
NEW SQUARE D POWER LOGIC PM650 3020 METER MODULE ENCLOSURE
NEW SIMPLEX FACTORY SEALED 4100-0622 DIGITAL AUDIO RISER 742-535 CIRCUIT BOARD
new FYH UCF315 48G5 MOUNTED BEARING
New Allen Bradley 700-R500A1 Electrically Held Relay 120V Coil Series B Type R
DANFOSS V02 VARIABLE OUTPUT BOARD AH098009 AA088210
ITE SIEMENS 5600 5640 DUAL 60 AMP BREAKER FEEDER MCC MCCB BUCKET
Square D FGA 3 pole 45 amp 480Y/277v FGA34045 PowerPact Circuit Breaker Paint
SQUARE D 8020 SCP111 SY/MAX MODEL 100 CONTROLLER WITH MEMORY MODULE
AVDEL 727 AIR RIVETER WITH FOOT PEDAL
New TELEMECANIQUE XAPG392036080064 Control Station Enclosure
AMX RAD-INC Incandescent Dimming Module 2400W 277v 10A Input 277V 2400 watt
GILBARCO MARCONI VERIFONE Q13086-101 G-SITE CIRCUIT BOARD CORE
CPC COMPUTER PROCESS CONTROLS RS485 ALARM 811-4850 CONTROL PANEL ALARM
Square D 8903PBM10V02 Lighting Contactor 600v Volt 30 Amp 120 Volt Coil
GILBARCO MARCONI VERIFONE T20229-G1 T20229-GX ADVANTAGE CARD CAGE ASSEMBLEY
SQUARE D MODEL 6 SIZE 1 MOTOR STARTER 30 AMP FUSIBLE FEEDER MCC MCCB BUCKET
FIREYE 45UV5 MODEL 1005 SELF-CHECKING UV SCANNER 1 INCH NPT MOUNT
RAMSEY CONTROLS BN176 REV. INV. TRIGGER
NEW NO BOX Simplex panel card 4100 565-333G 565-333-G UT MASTER CONTROLLER
NEW GILBARCO MARCONI PETRO VEND MBR 213 DUAL TRACK CARD READER
NEW GILBARCO MARCONI BLACK BOX COS 2 SWED55545 OPERATED SWITCH
NEW GILBARCO MARCONI K93062-02 UPGRADE KIT TCR-G TCR-G2
NEW GILBARCO MARCONI 22196-01 13880-01 SERVICE CONSOLE KEY PAD
INDRAMAT AS31/006-000 POWER SUPPLY AC SERVO CONTROLLER MODULE SOFTWARE #6
INDRAMAT NFD02.1-480-130 POWER SUPPLY AC SERVO CONTROLLER FILTER DRIVE #4
INDRAMAT KDA-02V3.05 POWER SUPPLY KDA CONTROLLER MODULE SOFTWARE #3A
INDRAMAT MSP1V0.7 KDA3.2-050 POWER SUPPLY SERVO CONTROLLER MODULE SOFTWARE #7
SQUARE D MODEL 6 SIZE 1 MOTOR STARTER 3 AMP BREAKER MCC MCCB BUCKET MISSING
NEW TURN-ACT TURN-DEX 422-2-000 ACTUATOR WITH UNIDIRECTIONAL CLUTCH 2-1/2" BORE
WATTS F602-16WJ FILTER 1" NPT MAX PRESSURE 250PSI MAX TEMP 150F
NEW VORTEC VORTEX COOLER MODEL 721
CPC COMPUTER PROCESS CONTROLS RS485 ALARM 811-4850 CONTROL PANEL WHITE
CRESTRON CRESLITE SYSTEM 7 CL6 SIX-MODULE LIGHTING CABINET
new MICRO SWITCH FE-MLS-5EB PHOTO EYE SENSOR
BOSCH 0 608 101014 EC MOTOR 463 006 3.1 AMP 23 MAX AMP
NEW NATIONAL INSTRUMENT 192323B-02 779312-01 PCI 6521 8 CH/CH ISO CARD
INTELLIGENT ACTUATOR, IS-S-Y-M-16-60-400, 24" SLIDE
NEW UNIVER MILANO, ELECTRIC AIR CYLINDER, LAP40ODE095T
NEW SMC LINEAR SLIDE, PNEUMATIC GUIDE CYLINDER, MGPM50N-100B-XC8
GE 7700 SERIES SIZE 2 MOTOR STARTER 30 AMP CIRCUIT BREAKER MCC MCCB BUCKET HOA
GE 7700 SERIES SIZE 1 REVERSING MOTOR STARTER 15 AMP BREAKER MCC MCCB BUCKET
microtek controls model ticr500 interface module disp card plc
SIMPLEX BUILDING COMMUNICATION SYSTEM 5120-9190 POWER SUPPLY
Barber-Coleman Network 8000 Local Control Module LCM-84110-1 Fire Alarm
Siemens HE HE63B100 3 pole 100 amp Circuit Breaker
GENERAL ELECTRIC GE TKM TKM836Y800 600 volt 3 pole 800 amp Circuit Breaker SHUNT
Speed Controller MSE402 Board Inside w/ Rittal Outer Box Fire Alarm
SQUARE D MODEL 6 SIZE 1 MOTOR STARTER FUSIBLE F FEEDER MCC MCCB BUCKET
NEW COILHOUSE PNEUMATICS L340MB LUBRICATOR 3/4" NPT 250PSI MAX
Square D FGA 3 pole 40 amp 480Y/277v FGA34040 PowerPact Circuit Breaker
New Allen Bradley 505-BOD-A2C Size 1 Reversing Starter E1 Plus 600v 120v Coil
NEW ONO SOKKI RP-0432Z ROTARY ENCODER SIG 1000 P/R
Simplex 565-878 Circuit Board With 565-560 Board Fire Alarm
Simplex 565-486 Circuit Board with 565-560 Board Fire Alarm
NEW 4" ABZ VALVE 401-100 ABZOLUTE BUTTERFLY VALVE WITH MANUALLY OPERATED LEVER
UNITED ELECTRIC E117-3BS TEMP SWITCH RANGE 100-400F/37.8-204.4C MAX TEMP 450F
MEDAR INC 7623-3M2 PC BOARD 7620-3
ALLEN BRADLEY 2100 FUSIBLE MOTOR STARTER 150 AMP FUSIBLE FEEDER BUCKET
SIMPLEX 4606-9101/9101C LCD ANNUNCIATOR DISPLAY ##
SIEMENS 3RX2-10 3RX2110 EVALUATOR CONTROL UNIT
NUMATICS SPS075X51ZCX POWER SLIDE SENSOR 3/4" BORE 1/2" STROKE W/ 2 CS-2OTP-QD
GILBARCO MARCONI M01560A001R MICRO READER BOARD CORE
NEW ALLEN BRADLEY 609-XCX SER.J 1P NEMA 4X MANUAL STARTER SWITCH SINGLE PHASE
GE 7700 SERIES SIZE 1 MOTOR STARTER 30 AMP FUSIBLE F MCC MCCB BUCKET
GE 7700 SERIES SIZE 1 MOTOR STARTER 30 AMP FUSIBLE F MCC MCCB BUCKET LIGHT
NEW PANDUIT TTC8YS-10 THERMAL TRANSFER LABEL ROLL OF 10000 1 PER BUY
GE 7700 SERIES 30 AMP FUSIBLE F FEEDER SIZE 1 STARTER MCC MCCB BUCKET
New in Box Siebe Environmental Controls MPC-2P0 Pneumatic Output Module
Square D 8536SEO1H10S Size 3 Motor Starter SR310 Motor Logic 30-90 Amp 120v Coil
GILBARCO MARCONI 23533-01 SPARE KEYBOARD 120 KEY BOARD CORE
WESTINGHOUSE CH TYPE W SIZE 1 STARTER 30 AMP BREAKER MCC BUCKET NO DOOR
Homer Electric HE693ASC900E Module PLC Horner
ANTENNA ASSEMBLY 1-301048-J21 001301048J21
NEW ROTARY LIFT DOVER FJ699
FINN-AQUA AUTOCON 2 IO DIO 31113 V9203 PLC CIRCUIT BOARD
FINN-AQUA AUTOCON 2 IO ADIO 31113 V9203 PLC CIRCUIT BOARD
FINN-AQUA AUTOMATION CPU FF V9307 ACS 30838 PLC CIRCUIT BOARD
CUTLER HAMMER 2100 SIZE MOTOR STARTER BREAKER FEEDER EMPTY MCC MCCB BUCKET
light curtain sensor banner sti beam array bmlv18c
NEW GILBARCO MARCONI K-93744-09 BOX OF 6
NEW GILBARCO MARCONI M01564A001 CIRCUIT BOARD
NEW ASCO HC8344G70 SOLENOID VALVE AIR,GAS,WATER 10-125 PSI LT.OIL 25-125 PSI
SQUARE D MODEL 6 SIZE 1 MOTOR STARTER 8536 FUSIBLE F FEEDER MCC MCCB BUCKET
ALLEN BRADLEY 809-A01E 600V TRIP RELAY
ASCO 920 Remote Control Switch Contactor 926 3 Pole 60 Amp 600V 600CY
ALLEN BRADLEY 117404-TT250N 10B4 POWER BLOCK DUAL SCR
NEW SQUARE D 9065TJF40 9065 TJF40 CURRENT TRANSFORMER WITH LR2D13 OVERLOAD RELAY
new pcb813327 813782 sensor inlet
NEW SQUARE D IFL IFL24070 2 POLE 70 AMP CIRCUIT BREAKER
GILBARCO MARCONI M01608A001 MAIN POWER SUPPLY CORE
controller sti light curtain banner minisafe ms4328 burned
sti light curtain banner controller ap400b
light curtain banner controller optosafe p4100b-2 p4124b-2
JEOL EVACI PB SP000466(00) CIRCUIT BOARD CARD
Andover Controls CIU 3 01-1000-314 display PCB Board
NEW Simplex FIRE ALARM 4100-5015 8 ZONE CLASS A MODULE 565-231 REV D
NEW TELEMECANIQUE SQUARE D A66PI PCMCIA COMMUNICATION CARD SIEMENS ALTIVAR 66
New Cooper Lighting Emergency Light Sure-Lites UEL1SD 120/277 V 12 W
Festo DGP-11/4"-31"-PPVA B Pneumatic Linear Actuator Drive 1-1/4" Bore 31"Stroke
CIRCLE SEAL RELIEF VALVE, M5162N-6M(L), SET @ 588, 3/4" PIPE, ASME AIR CAP
SIMCO RAMIC CORP SRC PCB ASSY FBSU VGA 94-160293-004 REV A W/94-162372 #7
ESI Elevator Systems Access Board Rev B Circuit Board Card 019-1434
ESI Elevator Systems Door Board Circuit Board Card 021-1433
Allen Bradley Flame Monitor EB-700 Eng Code 3 91090015 Fire Alarm E-1001 Fireye
Allen Bradley Flame Monitor EB-700 Eng Code 3 93340089 Fire Alarm E-1001 Fireye
New Telemecanique 3 Phases Voltage Monitoring Relay
WESTINGHOUSE LB LB3400F 3 POLE 125 AMP TRIP CIRCUIT BREAKER LB3125
NEW BOSTON GEAR 700 SERIES, SPEED REDUCER, F713-30-B5-G, 1.0SF@1750 RPM,
Converter Concepts Inc CS90134 90-250V Power Supply 3 Amp Freq 44-440 Hz
SYNERGISTICS ACCESS CONTROL PANEL BWJUMP.PM3-4/92 CONTROL PANEL
NEW NO BOX SPACE AGE ELECTRONICS YM9050 LMW METAL LEXAN ENCLOSURE
Positron 7501-24 750124 4 Wire Data Isolator
Sharp Ladder Processor Z-100LP1 Z-100-LP1
BAILEY infi 90 NAMMO3 NETWORK ANALOG MASTER 6637203D1 #48
FIREYE EB-700 AUTOMATIC PRIMARY FLAME MONITOR #2
KILLARK EXPLOSION PROOF LIGHT HZJ-71G-HZP2 120V 250 WATT MERCURY VAPOR
JEOL SP000277-00 ANP-PB FIRE ALARM CIRCUIT BOARD CARD
HONEYWELL DCM MODULE BOARD 620-0048
MPCS-3 POWER CHANGEOVER MODULE
RAMSEY CONTROLS 2411-1/258 DRIVE TACH FBDK
NEW BIMBA 5024-DXP PNEUMATIC CYLINDER 2-1/2" BORE 24" STROKE
Siemens MPC6-DB 6000 Main Display Board
DAY Control Products OM-1000E Board Card
JEOL LED DISP PB SP000324-01 SP000325-02 LED CONT PB CIRCUIT BOARDS CARD
FIREYE E300 EXPANSION MODULE WITH EB700 CHASIS FIRE ALARM SAFTEY
LANDIS & GYR POWER AO-V BOARD 02 533-680 537554 Z8AV8 CIRCUIT BOARD CARD 600 SCU
Flowserve Single Cartridge Pump Seal Series 84 R84-14SA R8414SA
ITE SIEMENS QJ QJ23B09000s01 3 POLE 90 AMP BREAKER SHUNT TRIP S01QJOR3
SERVOTRONICS OPT-MN MOTION CONTROLLER CIRCUIT BOARD
Non-Linear Systems 8000-1-1-04-60 8000110460 120V Ac Signal Module
PYROTRONICS 580-184139 REV I VCI5 CIRCUIT BOARD MAIN BOARD
yaskawa cimr-f7u40p4 AC Drive VFD .75hp 480v 460v 400v 380v 50/60hz 3/4hp
Siemens 3TF52 w/ 3UA62 OL Motor Starter 50HP 90 Amp 600v Volt 120v Coil size 4
FPE NFJ 3 Pole 225 Amp NFJ631225 Circuit Breaker
VACUUM PUMP MOTOR .55KW .73HP 3/4 220/380V 1330RPM
NEW CONTROL TECHNOLOGY 2589-A 8/16/32 POINT UNIVERSAL DISCRETE INPUT MODULE cti
VFD VARIABLE SPEED DRIVE AC 6MB400P5 6MDDN-1P4102
HOSTILE DUTY HW10EL9C2-C 215T 3PH 10HP 460V COOLING TOWER DUTY 2 SPEED AC MOTOR
DATA INSTRUMENTS D42351-02 REV F D50640 REV F CIRCUIT BOARD CARD
NEW TELEMECANIQUE MOTOR PROTECTION MODULE 6 - 10 AMP 690V MAX OVERLOAD RELAY
genesis kbn2-4303-1 460v 3hp ac drive 3 hp 3 phase
genesis kbn2-4303-1 460v 3hp ac drive 3 hp 3 phase missing bottom half
ALLEN BRADLEY AB 1333-AAA 1hp 230V 208V 200V 2.6KVA 3ph SER B AC DRIVE SER D
eaton mmx12aa7d0f0-0 ac drive starter soft start 2hp 240v single phase 1
DANFOSS GT2CN1STR0DLF00A00 10HP 240V 3PH AC DRIVE 6000c31
New Notifier JLIB-200 Fire Alarm Interface Board
SIEMENS 6FX11202CA00 6FX1120-2CA00 MEMORY MODULE CARD
NEW GILBARCO MARCONI W01854-G7R W0-1854-G7R REGULATOR BOARD
Bailey Controls IMASI02 Infi 90 Analog Input Slave +5 +- 15V DC 1 Watt 6637626G1
Bailey Controls IMASI02 Infi 90 Analog Input Slave +5 +- 15V DC 1 Watt 6637626D1
豫公網安備41010502000017號 
