1756-CP3 1756-CP31756-CP3 1756-CP3
当PLC的用户程序要保留在RAM中时，就会用到电池，电池通常是3V或3.6V的不可充电的锂电池，电池的使用寿命通常是五年左右，电池用久了，电压就会下降，当其下降到不足以保证RAM中数据时，RAM中的程序就会丢失。如果用户没有备份程序，就会相当麻烦。[1]
一般PLC内部设有电池电压检测电路，当电压下降到一定程度时，PLC就会报警，提醒更换电池。PLC的使用说明书都有提供更换电池的方法。一般来 说，PLC在断电后，因为PLC上RAM电源端接有充电电容，即使把电池去掉，电容上充电电量也足够RAM内的数据保持一段时间，所以如果取掉电池后在短 时间内（通常5分钟）再将新电池换上去，数据是不会丢失的。
但用户实际使用PLC的环境情况不尽相同，例如电容的容量下降，RAM电源回路有 灰尘、油泥等形成放电回路等，这会加快PLC断电后电容的放电速度，从而使时间不好把握。如果在带电的情况下更换电池就可保程序*。因为电源始终会 有电压加在RAM芯片的电源脚。当然更换时亦要小心应对，注意电池的极性以及避免短路情况发生。
是把PLC通电15分钟（给内部电容充电），断电，在5分钟内换好新的电池，再上电试一下。
西门子PLC有带卡的，有不带电池的；也有带卡的，带电池的。程序存在MMC卡中，如果没有存储卡，需要电池保存程序的，更换电池时候务必注意，带电的情况下，将旧电池取出来，然后将新电池换上即可。
AMAT 0620-01270 CABLE ASSY SNSR .062-BUNDLE 72"L INTERLC, NEW
SMC VH83500-02 AC2590-02X648 AR2500-02-X129, VALVE, USED
AMAT 0190-77393 VESSEL, PRESSURE, 2.4L, TEFLON , USED
AMAT 0140-09340 HARNESS ASSY, ANALOG A2 50FT, 200MM CMP,USED
AMAT 0020-79709 WINDOW, DRYER, MIRRA MESA , USED
OMRON G6B-4BND RELAY TERMINAL BLOCK COIL 24VDC, USED
BUSS CHM1 FUSE HOLDER 30A 600V, USED
AMAT 0021-13822 MOUNT PLATE, DI LINE INPUT, 200MM MESA , NEW
EMECANIQUE LC1D18BL CONTACTOR, POLE3, 24VDC, USED
ADVANCE SAV-2640-131CBi-02 CORROSION RESISTING DIAPHRAGM VALVE, USED
AMAT 0020-77436 SHOULDER BUSHING, LOADCUP , NEW
YASKAWA SGDS-02A32A SERVOPACK 200V, USED
AMAT 4000-01273 CDCGE FRONT PANEL 4HP 6V , 2 OF LOT , NEW
AMAT 0140-09341 HARNESS ASSY, DIGITAL D7 50FT, 200MM CMP,USED
SMC LVD20B-ST07-1-X24, VALVE, USED
AMAT 0246-01866 KIT, VITON 747 ORING, 300MM DPN/ + BMA , NEW
AMAT 0090-02868 ASSY, RESISTOR ELECTRICAL, NEW
AMAT 0020-46291 BRACKET, LEFT, MOUNTING, CHBR-MF, RPG CHBR, 300MM , NEW
AMAT 0022-77548 EDGE CONTROL RING , USED
AMAT 0020-79088 CARRIER RING , USED
AMAT 0020-79087 INNER CLAMP , USED
AMAT 0022-77550 PLATE, MEMBRANE SUPPORT, 8 TUNGSTEN HEAD , USED
AMAT 0020-79089 GIMBAL ROD , USED
AMAT 0021-11224 WAFER SENSOR PLUNGER FOR TUNGSTEN HEAD , USED
AMAT 0010-77180 MANIFOLD ASSY , USED
AMAT 0021-77384 GIMBAL, FLEXURE , USED
AMAT 0020-79086 MANIFOLD FLANGE , USED
AMAT 3300-08855 HEAT EXCHANGER/ NESLAB CABLE , NEW
AMAT 1410-00643 HEATER JACKET, PLIS USG, ZONE 5, ITEM 6, NEW
AMAT 0620-01694 CABLE ASSY NETWORK .7FT W/MODULAR PLUG, NEW
AMAT 3300-01236 FTG HOSE NIP QDISC 1/2BODY X 1/2FPT BRS EP-SEAL , NEW
AMAT 3300-01733 FTG HOSE CPLG QDISC 1/2BODX1/2FPT BRS BUNA-SEAL , NEW
AMAT 3300-01346 FTG FLANGE BLANK -OFF NW25 1.570DX.20THK SST304 , NEW
AMAT 3880-01029 WSHR LKG SPLIT #1/2 .875 ODX .512 ID X .125 THK SS , NEW
AMAT 3550-01213 PIN BALL LOCK T- HDL QK-REL 1/2D X 4.00-GR SST , NEW
MKS 100312703 HPS Seal Center Ring NW25 , NEW
Wasco 0225-32231-A 30Hz PSI 1A115VAC 100Torr CL DECR , USED
VARIAN type 0531 VACUUM GAUGE , USED
KEYENCE SJ-B101, SJ-B196 CORPORATION , USED
AMAT 0190-19174 DUAL FREQUENCY RF MATCH BOX, 5 KW 2 MHZ/ , NEW
AMAT 3300-03613 FTG HOSE conn 1/2h x 1/2MNPT SST , NEW
KEYENCE SL-C40H-T & SL-C40H-R Light Curtain Set NOT INCLUDED CABLES , USED
AMAT 3300-08855 HEAT EXCHANGER/ NESLAB CABLE , NEW
AMAT 0021-25014 DISK, SHUTTER, BESC, CENTER PIN, RPG CHB , NEW
AMAT 3300-09301 FTG TBG CONN 1/2" T ORFS X 1/2" MNPT , NEW
AMAT 0020-23549 SHIELD, UPPER, AL ARC-SPRAY, SST, 300MM , NEW
SUNX SF2-NH40D-PN Receiver Sensor 24V 240mA, USED
AMAT 3030-09600 LFM LF-210A-EVD TICL4 .05GPM FS 1/4 & 1 , NEW
SUNX SF2-NH40P-PN Receiver Sensor 24V 240mA, USED
Ion Systems 5685 AeroBar Ionizer with lsoStat Technology, USED
AMAT 0015-35019 SOCKET, BALL JOINT, CHAMBER VACUUM TEST , NEW
AMAT 0226-98549 CABLE ASSY PFC INTERFACE , NEW
Turck FDNP-L0404G-TT DeviceNet 4 in 4 out Ethernet Busstop, NEW
AMAT 0021-42816 BAR, HANDLE, 300MM PRODUCER SE , NEW
AMAT 0140-19338 HARNESS ASSSY, USER INTRF , NEW
AMAT 0010-30380 CONNECTOR, HV MODULE, SHI , NEW
AMAT 0020-79021 HOUSING, LOADCUP, USED
AMAT 0190-77103 LOADCUP LINEAR BEARING, NEW
AMAT 0140-17834 HARNESS ASSY MKS THROTTLE, NEW
AMAT 0690-01767 CLAMP SPLIT & SCREW 1/2 SHAFT SIZE .562, USED
AMAT 0020-77374 GEAR, USED
AMAT 0600-00008 FAN FILTER ALUMINUM MILL 4.68X4.68X0.175 , NEW
AMAT 0020-07626 BRACKET, LID, SOURCE BOX, 30MM, R1 , NEW
AMAT 0020-77924 BEARING RETAINER, CAP , USED
TOFLO HELICAL FLOW ANALOG 4~20mA, USED
AMAT 0020-77925 BEARING SEAT, RACE CLAMP , USED
Entegris 6500-T9-B12-A-P1-U3 NT Integrated Flow Controller, WORKING
Entegris 6500-T1-F02-D12-L-P2-U1 NT Integrated Flow Controller, NEW
VAT 0340X-MH24-API1 WAFER TRANSFER VACUUM VALVE ACTUATOR A-291078 , USED
Advance Electric CP300-CAAAA-008 RANGE 0-100KPA 24V ,USED
AMAT 0040-77170 DRIVEN PULLEY , USED
AMAT 0040-76728 STOPPER PLATE GRIPPER ASSEMBLY BRUSH 200/300 , USED
AMAT 0040-51473 TANK, OUTPUT MODULE, 300MM CLEANER , USED
GCG2951-S8TD92 BRUSHLESS MOTOR 85W AC115V, USED
AMAT 0040-77085 LOWER PLATEN INCLUDING CHAMBER PLUG , USED
AMAT 0040-77086 SPACER , USED
AMAT 3870-01212 VALVE PNEU NW 40 6"LG , USED
SANYODENKI 109L1224H1J01 PAN SanAce120L DC 24V 0.21A, USED
AMAT 0190-10030 HEAT EXCHANGER, AL-GRAPHITE, WITH CONNEC ETN23A-SC-B, WORKING
AMAT 0240-15379 KIT, LOWER ADJ MEMBER FI, NEW
SUNX SF2-NH20D-PN Receiver Sensor 24V 160mA, USED
AMAT 0242-46897 KIT, HEAT EXCHANGER, CHAMBER, PRODUCER GT, NEW
AMAT 0242-31591 KIT, DI COOLER INTEGRATION FITTINGS AND HOSE, NEW
SUNX SF2-NH20P-PN Emitter Sensor 24V 160mA, USED
AMAT 0246-02555 KIT, WHITE FFU INTAKE PLENUM, STANDARD, NEW
AMAT 0270-03505 SHIM, CHAMBER LINER INSTALLATION & REMOVAL, EPI 300MM, NEW
AMAT 0021-35925 EDGE RING,TXZ,200MM,JMF , NEW
OPTEC DAI-ICHI DENKO EQ-111AD NIKON OPTICAL CONTROLLER DAI CHI OPTEC, WORKING
AMAT 0242-29469 KIT, GAS DELIVERY, INTEGRATION, 300MM, NEW
2980-090661-13 ACT 8 Spinner I/O PCB, WORKING
AMAT 0010-36476 ASSY,EDGE RING,TXZ,200MM,JMF , NEW
AMAT 0242-17147 KIT, DPS-2 CHAMBER BLOWOUT, SHIPPING, NEW
AMAT 0020-39360 RACE, UPPER,BEARING, UPPER ROTATION, RTP, NEW
AMAT 3300-08884 FTG, ELBOW 1.00 FEMALE SWVL SEAL-LOK SST WITH EVL, NEW
LAM RESEARCH 810-17031-2 ADIO-A0 Control Board, WORKING
KARUMAN ACE SAGINOMIYA FLOW METER 0.4-3.5 L/min TYPE: SLK SLK-0532T09, USED
AMAT 0020-39361 RACE, LOWER,BEARING, UPPER ROTATION, RTP, NEW
AMAT 3690-00526 SCR HEX HD 1/2-13 X 3L STL GRADE 5 ZINC-PLT, NEW
AMAT 0190-17102 CABLE ASSY, 50 FT, HP DC PWR SUPPLY TO C , NEW
YASKAWA SGDS-10A32A SERVOPACK 200V, USED
AMAT 0140-06710 300mm Mainframe Cable Assembly, NEW
AMAT 0020-24386 COVER RING 6 101 SST/MATL , NEW
SMC MHKL2-20C1S GRIPPER, PARALLEL WEDGE CAM, WORKING
AMAT 0010-76174 ASSY, THROTTLE VALVE DUAL SPRING, 5000 CVD , USED
AMAT 0200-10191 COMMON SILANE SHIELD, NEW
SCHAFFNER FN258L-16-07 Power Line Filter 3-Phase 480VAC 16A, USED
AMAT 0200-02873 200MM GDP PALTE, WORKING
LAM RESEARCH 715-007469-001 ELECTRODE LOWER 8" 4 PIN, NEW
RKC RCB-100-2A DEGAS HEATER UNIT FROM ULVAC ENTRON , USED
AMAT 0010-13321 ASSY, ROBOT DRIVE, 8 , USED
Advanced Energy 950-2005-01 Sekidenko 2000 2-Channel Optical Fiber Thermometer
TDK ZRGT2230-M 30A EMC Noise Filter , USED
AMAT 0100-20003 OBS DIGITAL INPUT OUTPUT PCB, WORKING
Ham-Let UCV HMS20-4VKC Diaphragm Gas Valve, USED
Gespac GESMPU-4B Circuit Card Assembly, WORKING
Ham-Let UCV HMS20-4VLQ Diaphragm Gas Valve, USED
KARUMAN MLK-0532CXQ2 SAGINOMIYA ACE FLOW METER,USED
AMAT 0190-77526 & 0190-77527 PAD CONDITIONER PC SWEEP AND PC ROATION SET
AMAT 0100-77043 DUAL WAFER LOSS BOARD,HEAD, NEW
OKANO WORKS DMP200N12 PRESSURE GAUGE 20.00Pa RE07217-F001-00 , USED
YASKAWA SGDA-01AP SERVOPACK 200V 1 PHASE 2.5AMPS, USED
Setra 227 & 3280L3ADZNSAM3 Pressure Transducer, Micro Pressure Transduce, USED
CKD LYX-1145 VALVE 0.15MPa, USED
Veriflo 45800978-2, SMSQ2MICRO130E60102, A0137418-6 PARKER VERIFLO, USED
AMAT 0040-53142 GIMBAL BODY, HEATER LIFT, TXZ 300MM , USED
APTECH AP506SM 2P FA TF HF MINI REGULATOR, NEW
PATLITE LCE-FBK LIGHT TOWER, 3-LIGHT, 24V AC/DC, RED, GREEN, YELLOW, USED
PATLITE LCE-FBW LIGHT TOWER, 3-LIGHT, 24V AC/DC, RED, GREEN, YELLOW, USED
AMAT 3030-01683 Mass Flow Controller 3 SLM O2 , USED
SONY UW-1010 DUV POWER SUPPLY UWP-1000 RE07127-G002-00 , USED
CKD PMM20-10BUP VALVE, USED
AMAT 0140-78157 CABLE, DEVICENET GROUNDING , NEW
MITSUBISHI CP750A PRINTER , USED
AMAT 0010-09341 CVD SUSCEPTOR LIFT , USED
SMC SRH4110-03-R 0.05-0.7MPA,USED
AMAT 0010-21748 ASSY, RF MATCH, 300MM PRECLEAN/RPC PVD, NEW
Nihon Inter Electronics NIEC PDT10016 THYRISTOR MODULE, USED
AMAT 0010-30421 ASSY HEATER 8 JHT .029 W/VITON, NEW
AMAT 0100-09103 PCB ASSY A/C INTERCONNECT , USED
AMAT 0100-09224 PCB ASSY EXPANDED RS232 INTERCONNECT , USED
AMAT 0150-09701 CABLE ASSY DUAL FREQ INT TO PANEL , USED
Nemic Lambda MYB-1210-33 Noise Filter 250V~10A, USED
AMAT 1110-01030 NTWRK SPLITTER DNET 8 DROP PASSIVE 24VDC , USED
AMAT 0010-77242 VALVES PANEL , USED
