1756-CNB 1756-CNB1756-CNB 1756-CNB
當PLC的用戶程序要保留在RAM中時，就會用到電池，電池通常是3V或3.6V的不可充電的鋰電池，電池的使用壽命通常是五年左右，電池用久了，電壓就會下降，當其下降到不足以保證RAM中數據時，RAM中的程序就會丟失。如果用戶沒有備份程序，就會相當麻煩。[1]
一般PLC內部設有電池電壓檢測電路，當電壓下降到一定程度時，PLC就會報警，提醒更換電池。PLC的使用說明書都有提供更換電池的方法。一般來 說，PLC在斷電后，因為PLC上RAM電源端接有充電電容，即使把電池去掉，電容上充電電量也足夠RAM內的數據保持一段時間，所以如果取掉電池后在短 時間內（通常5分鐘）再將新電池換上去，數據是不會丟失的。
但用戶實際使用PLC的環(huán)境情況不盡相同，例如電容的容量下降，RAM電源回路有 灰塵、油泥等形成放電回路等，這會加快PLC斷電后電容的放電速度，從而使時間不好把握。如果在帶電的情況下更換電池就可保程序*。因為電源始終會 有電壓加在RAM芯片的電源腳。當然更換時亦要小心應對，注意電池的極性以及避免短路情況發(fā)生。
是把PLC通電15分鐘（給內部電容充電），斷電，在5分鐘內換好新的電池，再上電試一下。
西門子PLC有帶卡的，有不帶電池的；也有帶卡的，帶電池的。程序存在MMC卡中，如果沒有存儲卡，需要電池保存程序的，更換電池時候務必注意，帶電的情況下，將舊電池取出來，然后將新電池換上即可。
ASML 4022.439.60851 ENDPIECE WELD FLG SST 250×2×55 , NEW
AMAT 0140-01881 CABLE, SENSOR-CONTROL, BLKHD 4, SCRUBBER, WORKING
AMAT 0010-29858 AC DISTRIBUTION ASSEMBLY, RF BASE HEATER, CHAMBER A PROD S , NEW
AMAT 0050-94160 MAINFRAME , NEW
AMAT 0140-11359 CABLE MEG TANK LVL/DOOR CL SW LO ELECT M, WORKING
NOVELLUS 15-101482-01 FORK, TOP PLATE, B ANTI-DEFLECT, SEQ, NEW
AMAT 0190-77016 ENCODER SERVMOTOR PC1-3 , USED
AMAT 0150-25432 D LINK PORT 10, NEW
AMAT 0150-11506 FGI/11/1G, NEW
BROOKS TT1ENR2-1-TVS-ES-BROOKS8 Robot Teach Pendant Handheld Controller
AMAT 0140-06296 CABLE SENSOR-CONTROL BLKHD 3 SRD (SMOOTH SHIELD CNTRL), WORKING
AMAT 0090-77153 BRUSH BAR SWITCH RIGHT SENSOR, NEW
AMAT 0021-21890 RING, DEPOSITION, 8 JMF, TI/TIN, HTESC , NEW
Hoffman TFP61UL12 Cooling Fan 115V .36A , USED
NOVELL 38-134677-00, 38-134670-00 CABLE SENSING WATER LEAK 50FT, ADPTR MODU, NEW
CKD FILTER W3100/R3100/V3100 FILTER REGULATOR,USED
AMAT 3700-00629 SEAL ASSY PERLAST WITH SST NW50 CTR RING, NEW
AMAT 0140-01844 CABLE OM SENSOR-CNTRL BLKHD 3 SYSTEM, WORKING
AMAT 0010-13071 ASSY, PVD SLIT VALVE DOOR & MOUNT, 300MM , NEW
AMAT 0150-11507 REV 004, NEW
AMAT 0140-01947 CABLE BRUSH POS MOTORS POWER SCRUBBER 2, WORKING
HUBBELL HBL2321 NEMA L6 - 20P TWIST LOCK PLUG 20A 250V
AMAT 0270-00860 CATHODE STAND,NEW
AMAT 0100-01646 PCB ASSY, UPA DISTRIBUTION BD., 200MM 5- , USED
AMAT 0040-51159 PLUG, ANODIZED SGD, 300MM EMAX , NEW
AMAT 0140-04902 HARNESS PAD 3, POLISHER BKHD COND & SWP, WORKING
NOVELLUS 16-033931-00 SHOWER HD PINNED 200,WLDMNT , NEW
TOKYO Q310-231493 BLOCK ASSY,UV MONITOR, NEW
AMAT 0140-02811 HARNESS START/STOP BLKHD, WORKING
AMAT 0015-77236 DISC NOZZLE , NEW
AMAT 0040-85379 RF CONDUCTOR OFFSET , NEW
AMAT 0050-92389 GASLINE, AR FAC TO PURGE MODULE, 300MM ALD TAN (RPG), NEW
HUBBELL HBL2326 CONNECTOR, POWER ENTRY, RECEPTACLE, 20A
AMAT 0021-39076 MANIFOLD, OUTPUT H2O, TI-XZ , NEW
AMAT 3300-02518 MALE NPTF PIPE, NEW
AMAT 0200-35841 PUMPING RING, CERAMIC, GIGA-FILL SACVD , NEW
AMAT 0680-01190 CBTHERM SGL POLE 5A PB 50VDC 250VAC 50/6., NEW
AMAT 0190-25400 VALVE GATE 200 THROTTLING (STANDARD) TPV , NEW
AMAT 0090-00028 FULL ATMOSPHERE SWITCH ASSY, 8100 , NEW
AMAT 0090-09022 FULL ATMOSPHERE SWITCH ASSEMBLY , NEW
NOVELLUS 16-271392-00 300mm 13" Shower Head , NEW
AMAT 0270-00689 INSTALL, TOOL COLLAR, 300MM HDPCVD,NEW
AMAT 0020-38074 INSULATOR, HV-FEED, NEW
AMAT 0190-25401 VALVE GATE 200 THROTTLING (MIRRORED) TPV , NEW
ITAC SYSTEMS GPNB-5XXMP B-MPIND MOUSE TRACK BALL
AMAT 1040-00183 METER FLOW WATER , NEW
AMAT 0140-12771 55BLE FLOW/PRESSURE SW LOWER ELECT MEG, WORKING
THERMO SCIENTIFIC D4511 Barnstead B-Pure Water Filter, NEW
AMAT 0090-A4700 XDC PSU , NEW
CKD MN3E0660-**-FL313891 N4E0-QX-FL319147, N4E0-EL, USED
AMAT 0150-16851 CABLE ASSY 25 FT EVC M/M, WORKING
CKD MN3E0660-**-FL313657 N4E0-QX-C-FL319145, USED
FUTURESTAR 154-010 PATHFINDER SERIES TEFLON FLOW METER
AMAT 0140-11665 CABLE MEGASONIC SENSORS, UPPER ELECT, WORKING
CKD N4E0-T30R, USED
AMAT 0090-A2690 BOOSTER PS ASSY , NEW
FUTURESTAR 154-040 PATHFINDER SERIES TEFLON FLOW METER
AMAT 0090-A3220 SBBI ASSYSEM-I BEAM BLANK , NEW
AMAT 0270-00739 INSTALL TOOL CATHODE ASSEMBLY, 300MM HDP, NEW
SMC 10-CQSB25-35D CYL, COMPACT 1.0MPa, USED
AMAT 0090-A4670 CAMERAS PSU , NEW
AMAT 3620-00055 PUMP DRAIN FOR QLCA-320 , NEW
AMAT 0190-14995 SPECIFICATION GRIPPER. CRYO PUMP 300 MM, NEW
AMAT 0140-78563 CABLE MOTION CONTROL SENSORS SYSTEM, WORKING
AMAT 0140-78037 CABLE, UPPER-LOWER SYSTEM, WORKING
FUTURESTAR 154-00250 PATHFINDER SERIES TEFLON FLOW METER
EBARA FREX 200 CARRIER HEAD ( STI CMP ), WORKING
EBARA FREX 200 CARRIER HEAD ( WCMP ), WORKING
HMI 77-604-210120-004-3 DEFLECTION IMAGE CONTROLLER NEW TYPE DICC-E , USED
HMI 77-603-080500-000-0 SCCECC-A CONTROLLER , USED
emecanique LC1F225 CONTACTOR, WORKING
AMAT 0020-24558 HONEYCOMB COLLIMATOR 3/4 HX 1.5:1 8" , NEW
RORZE PURR-4561-1 PULLED FROM ULVAC ENTRON , USED
AMAT 0010-14714 ASSY, 4 PORT TP UPA REFLEXION, WORKING
SMC ITV2050-402S-X80 Electropneumatic Air Pressure Regulator, USED
RORZE RAE-01786 PULLED FROM ULVAC ENTRON , USED
AMAT 3870-04672 THROTTLE BUTTERFLY VALVE IQD, USED
EBARA MEIS-2000 MULTI PROCESS MONITOR FROM FREX300S , USED
BROOKS AUTOMATION 002-9479-04 REV : 1, NEW
LAM 720-000920-004 SCR, SCH CAP,4-40, NEW
LAM 721-000956-002 WSHR, LK, #10, NEW
LAM 721-000964-001 WSHR, FLT, 1/4, NEW
EBARA EMA-16 RECM-1 MAIN AMP FROM FREX300S , USED
AMAT 1350-00400 NT Pressure Transducer 4210-060G-F04-B12-B-P1-U1 , NEW
Shimadzu 262-78782-22 Turbo Molecular Pump Cable EI-D3403M , NEW
AMAT 0150-05891 CABLE ASSY, DVRS ENCODER, CNTRL-MNFRM BK,USED
PATLITE LCE-AFB SIGNAL TOWER
AMAT 0010-39207 HIGH EFFICIENCY RF MATCH, ETCH, SUPER-E, USED
AMAT 0150-77040 CABLE ASSY, HD ROT CNTRL,USED
AMAT 0010-70264 5-PHASE STEPPING MOTOR, 1 SET, USED
PATLITE WM-FBEN Light Tower 4 Lights 24V AC/DC 10W
AMAT 0870-01072 DRVR SERVO AMP 200V 15A DNET PV1A015SM61P50 , NEW
AMAT 0150-77047 CBL ASSY,PWR PLATEN CNTRL,USED
AMAT 0010-35048 5-PHASE STEPPING MOTOR, 1 SET, USED
AMAT 0020-79227 SENSOR PLATE, USED
AMAT 0010-01711 5-PHASE STEPPING MOTOR, 1 SET, USED
AMAT 0010-70149 5-PHASE STEPPING MOTOR, 1 SET, USED
WHITEY SS-44XS6 3- WAY BALL VALVES
AMAT 0020-77944 BASE PLATE MOUNT , NEW
AMAT 0150-77056 Platen Motor,USED
AMAT 0010-09978 ASSY LAMP MODULE AU-PLATED 200MM, USED
NAGANO KEIKI KL12 differential pressure transmitter 27VDC 0.5kPa 20mA DC, USED
Norgren VM1516SL12898A DeviceNET 5V MOD NET, WORKING
MITSUBISHI QD51 INLIGENT UNIT, MELSEC-Q, USED
AMAT 0010-25625 ASSY,ENDURA 300MM PR CH SLIT VALVE REV 3 , NEW
AMAT 0150-77058 CABLE ASSY,DIGITAL I/OBP,USED
ACCRETECH RE07118-G001-02 AF CONTROL UNIT , USED
RDI 2M26FC TERMINAL BLOCK INTERFACE MODULE
AMAT 0190-14751 SPEC., CDA MANAGEMENT KIT, YASKAWA ROBOT , NEW
AMAT 0010-04926 HV MODULE ASSY, NEGATIVE, CESC , USED
ONTRACK 28-8875-002 PCB, OPTO OUTPUT BOARD
AMAT 0150-77053 CNTRL BKHD ROBOT,MNFRM BKHD HEAD SWEEP,USED
Lam Research 715-022497-008 COV,LWR,ELCTRD HSNG, 2300 BSR, NEW
AMAT 0100-00062 STEPPER DRIVE , USED
GESAPC GESICU-2A INDUSTRIAL INTERCONNECTION UNIT
AMAT 0190-11724 SWITCH, WATER 3/4" HOSE/W ANALOG OUT 6 G , NEW
AMAT 0190-17687 SW PRESS SPDT 1A RES 28VDC FIXED 600TORR , NEW
AMAT 3870-01574 VALVE PNEU BLWS 3WAY NC- N/0 1/4 BUTTWEL 6LVV-P1V333P-AB
CAMBRIDGE FILTER GA5-457915FU-STL80 HEPA FILTER,KONDOH CKA572-A001 Air Fan,USED
Malema LFC-7302-21321-212-001 Liquid Flow Controller , USED
AMAT 0040-89837 GIMBAL BASE (UNIVERSAL) PAD CONDITIONER 200MM , NEW
AMAT 0020-78260 MNTG BRKT 1 LOADCUP, NEW
AMAT 0100-76061 ASSY, PCB SYSTEM ELECTRONICS BACKPLANE , USED
SMC VXA2232J AIR OPERATED VALVE, WORKING
SMC ZL112-DBH00005 MULTISTAGE EJECTOR, WORKING
ACCRETECH RE07125-F001-00 I/O ITF BOX , USED
IODATA CDRW-U5232 CD Rom Drive Compact Disk 52x32x52
ACCRETECH RE07124-G001-01 DC/M1 , USED
TOKYO ELECTRON 1181-000434-15 MC-31108A OMRON B7A-T6D7, USED
OMRON K3GN-NDC-FLK DC24V DIGITAL PANEL METER, USED
AMAT 0020-27207 CLAMP RING 6 SMF PADDED HTHU HTR, NEW
AMAT 0150-77061 CABLE ASSY,DRVS ENCODER,USED
SHI CONTROL SYSTEMS UMC5B0001-01 LINEAR AMPLIFIER MODULE SDLV-004A UMC5B0
Advanced Energy AM/DEMO 250-1200 Sekidenko 2000 1-Ch Optical Fiber Thermometer
SHI CONTROL SYSTEMS SDLN-014BMT LINEAR AMPLIFIER MODULE , USED
YAMAMOTO ELECTRIC MS61AHV1.2E-K DIFFERENTIAL PRESSURE SWITCH 0.2~1.2kPa, USED
YAMAMOTO ELECTRIC MS61AHV1.2E DIFFERENTIAL PRESSURE SWITCH 0.2~1.2kPa, USED
AMAT 0190-10735 ASSY,LOWER ELECTRONIC BOX,BRUSH 2,2 CHEM, WORKING
YAMAMOTO ELECTRIC MS61L DIFFERENTIAL PRESSURE SWITCH 0.5~3kPa, USED
SHI CONTROL SYSTEMS UMC5B2003-10 POWER SUPPLY MODULE PSDC-10A1 UMC5B2003AAG10
AMAT 0010-14246 ASSY, 100-500CC SINGLE CHANNEL, SLURRY D, NEW
AMAT 0021-77895 STUD, NEW
AMAT 0190-77374 MANIFOLD, 8-VALVE, CHEMICAL SUPPLY, MEGA , USED
Nemic-Lambda NNS30-15 15VDC @ 1.4-3.4A Power Supply , USED
