1756-CNBR 1756-CNBR1756-CNBR 1756-CNBR

當(dāng)PLC的用戶程序要保留在RAM中時(shí)，就會(huì)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(huì)下降，當(dāng)其下降到不足以保證RAM中數(shù)據(jù)時(shí)，RAM中的程序就會(huì)丟失。如果用戶沒有備份程序，就會(huì)相當(dāng)麻煩。[1] 

一般PLC內(nèi)部設(shè)有電池電壓檢測(cè)電路，當(dāng)電壓下降到一定程度時(shí)，PLC就會(huì)報(bào)警，提醒更換電池。PLC的使用說(shuō)明書都有提供更換電池的方法。一般來(lái) 說(shuō)，PLC在斷電后，因?yàn)镻LC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(nèi)的數(shù)據(jù)保持一段時(shí)間，所以如果取掉電池后在短 時(shí)間內(nèi)（通常5分鐘）再將新電池?fù)Q上去，數(shù)據(jù)是不會(huì)丟失的。

但用戶實(shí)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(huì)加快PLC斷電后電容的放電速度，從而使時(shí)間不好把握。如果在帶電的情況下更換電池就可保程序*。因?yàn)殡娫词冀K會(huì) 有電壓加在RAM芯片的電源腳。當(dāng)然更換時(shí)亦要小心應(yīng)對(duì)，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(nèi)部電容充電），斷電，在5分鐘內(nèi)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(chǔ)卡，需要電池保存程序的，更換電池時(shí)候務(wù)必注意，帶電的情況下，將舊電池取出來(lái)，然后將新電池?fù)Q上即可。

AMAT 0010-77241 CONTROL PANEL , USED

AMAT 0190-11497 BOTTOM BASE, DI WATER SYSTEM, CMP , USED

AMAT 0010-77426 ASSY TOP MANIFOLD DI WATER , USED

AMAT 0010-77312 ASSY, VALVES ROBOT & PEDESTAL PNEUMATIC , USED

AMAT 0010-77348 ASSY WATER TRAP PEDESTAL VACUUM , USED

AMAT 0660-00669 DISK DRIVE FLOPPY 3-1/2" 720K/1.44MB BE , USED

AMAT 0240-52216 KIT, SMOKE DETECTOR FOR MIRRA CMP , USED

AMAT 0010-35249 ASSY, XFMR ENCLOSURE 208V , USED

AMAT 0090-01021 HARNESS, IM, 300MM, WALKING BEAM, WAFER , USED

AMAT 0021-16083 BAFFLE, 300MM , USED

AMAT 3700-01091 ORING ID 20.000 CSD .210 VITON 75DURO BLK , NEW

AMAT 0270-03499 PEEK OTF CALIBRATION SPINDLE , NEW

AMAT 3300-02682 FTG NIP QDISC 1/4BODY X 1/4-18FP 1.52"L SST303 , NEW

AMAT 1330-01035 TIE INDENT W/FLAG MINI BLU MS3368-5-E , NEW

AMAT 3700-01227 ORING ID 1.799 CSD 103 VITON 75 DURO BLK , NEW

TOKYO ELECTRON 2184-020011-11 MC-311097 Omron B7A-T6D7-T, USED

TOKYO ELECTRON 1181-000876-11 PCB. I/F TTLE06-11 POWER BD PCB, USED

TOKYO ELECTRON 1181-000866-11 PCB. I/F TTLS05-11 MMI-INTFC PCB, USED

TOKYO ELECTRON 1181-000877-11 PCB. I/F TTLE07-11 ISOREP-BD PCB, USED

TS-4000Z PANEL PANEL, POWER AC100V 3A 50/60Hz, WORKING

AMAT 0020-08673 SHIELD, INNER, AL ARC-SPRAY SST, SIPM NEW

SMC VNB114B process Valve,USED

AMAT 0100-20027 PCB ASSY, CONTACTOR INTERLOCK , NEW

AMAT 0200-04118 ISOLATOR, CERAMIC, BLOK-CUST SPECIFIED , NEW

AMAT 0041-05327 RETAINING RING COMPOSITE 8 TITAN HEAD, NEW

AMAT 1040-01012 wMETER, SENSOR 10VDC , NEW

USHIO DXW 120v-1000WC5 Halogen Lamps,NEW

AMAT 0190-07314 POWER SUPPLY, HEAT EXCHANGER, MEGASONIC, USED

AMAT 0021-03568 FACEPLATE 200MM SACVD PRODUCER , NEW

AMAT 0020-75873 HOOP, 8 HTHU HEATER , NEW

AMAT 0021-27155 CHAMBER LINER RIGHT YTTRIUM COATING PROD , NEW

Fujikin Type N.C.0.34-0.49MPa 316L StainlessSteel Pneumatic Dual Diaphragm ValVe

AMAT 0040-32449 LID,PUMPING PLATE,TEAOS,GIGA-FILL SACVD , NEW

AMAT 0020-79255 COVER, HOUSING , USED

MILLIPORE WGMXMBRR4 HIGH FLOW TEFLON FILTER, USED

AMAT 0040-06170 ADAPTOR, LOWER, SIP-TA, WB CHAMBER , NEW

AMAT 0200-09072 SHIELD, 200MM , NEW

TKD ZRAC2203-11 NOISE FILTER 250V, USED

AMAT 0242-24504 KIT, CONTROLLER TEST TOOLS, DSM & 5.3 FI , NEW

AMAT 0240-28181 KIT, HEATER INSTALLATION, BESC , NEW

AMAT 3030-05714 Tylan FC-2950 Mass Flow Controller,WORKING

AMAT 0240-03004 KIT WATER SIP-CU UPPER ADAPTER , NEW

AMAT 0040-48030 LINER, TOP, TICL4 TIN , NEW

RIKEN KEIKI GD-F24 Tokyo Electron GAS EDTECTOR SENSOR, USED

Sun Microsystems 501-6635-06 Dual Gigabit Ethernet SCSI Network Adapter Card

AMAT 0200-35612 PLUG GAS FEED TXZ , NEW

FAIRCHILD TT7800-002 TRANSDUCER, TERMINAL BLOCK,WORKING

AMAT 0021-11110 RING EDGE ALUMINUM, SST HEATER TXZ 300MM , NEW

CB631S-10-M1 AMP RELAY MODULE, RELAY ALARM CABLE, USED

AMAT 0040-09733, 0150-09901 ENCLOSURE AC BOX OZONATOR, CABLE , USED

KEYENCE AP-33PA Main Unit, Positive-pressure Type, 1 Mpa, PNP, USED

AMAT 0240-05877 KIT, SOURCE SIP, RF EMISSIONS SHIELD , NEW

AMAT 0190-07312 AMPLIFIER, MEGASONIC, 200 MM SYSTEM, NRTL COMPLIANT , USED

RORZE CURR-4426-1 ROBOT CONTROLLER , USED

AMAT 0021-22177 COVER RING, ADV. 101 300MM PVD , NEW

AMAT 0040-02520 GAS BOX, SILANE, 200MM PRODUCER, Qualified 2ND NEW

AMAT 0140-78466 CABLE ASSY, UPPER ELEC/CHEMICAL FACILITY, WORKING

OLYMPUS BX-UCB CONTROL BOX , USED

AMAT 0020-02348 CLAMP, LOWER SHIELD, 300MM SIP , NEW

AMAT 0140-78040 CABLE, SENSOR-CONTROL, BLKHD 2, SRD, WORKING

AMAT 0090-77325 HARNESS, SWITCH, CHEM FLOW, BRUSH LDM, NEW

AMAT 0190-24854 MKS REV3.0 G4 PLUS 4-PORT UPA 300MM REFL , REFURBISHED

Kitz  316 Stainless Steel Valve 3/8" NPT 30K-3/8  Swagelok Parker,USED

AMAT 0021-12555 SHIELD UPPER LIFTABLE SHORT PVD , NEW

AMAT 0195-03995 146GB HARD DRIVE , NEW

HAYASHI LA-150FBU LUMINAR ACE , USED

ALLEN BRADLEY 4409-M18001 GUARD INVERTER

AMAT 0190-23229 SPECIFICATION, CB, X346 IBM E-SERVER DUA , NEW

NOVELLUS 27-262408-00 Controller, IOC, Firmware Ver. 4.20, NEW

NOVELLUS 15-150002-00 RING, GUARD, LTM, HDP300 , NEW

AMAT 0020-34775 BLOCKER, PERF,SILOX 8,UNIV CH,NON-STEPP , NEW

AMAT 3700-02321 SEAL CTR RING ASSY ISO250 W/VITON , NEW

AMAT 0020-10117 PLATE, PERFORATED OX 200MM TEOS , NEW

OMRON DRT2-ID16 XWT-ID16 OMRON DRT2-ID16 XWT-OD16 REMOTE TERMINAL 4 units,USED 

Fuji  CP32E/5 5A/1000A 250v Circuit Breaker, used

PENINSULA CONTROL PANELS 48657-00 HEATER CONTROLLER , USED

GENERAL ELECTRIC 9650-128 MINI PROTOCOL CONVERTER. 128K MEMORY

TS-4000Z PLASMA DISPLAY UNIT, WORKING

AMAT 0021-19342 SHIELD INNER 300MM PCII/RPC+ , NEW

SIEMENS 6ES5-422-8MA11 DIGITAL INPUT MODULE

AMAT 0820-90100 SENSOR. LIQUID LEVEL, CAPACITIVE. 4.5'' ES-SP-120 , NEW

AMAT 0020-48304 CLAMP RING, LOWER SHIELD, SST WITH CLEAN , NEW

AMAT 0010-30419 Z Heater 8" Assembly, NEW

AMAT 0020-29343 SHLELD, CLAMP DARKSPACE, NEW

AMAT 0200-00403 ISOLATOR PUMPING RING, MIDDLE, PRODUCER, NEW

AMAT 3870-04338 VALVE ASSY SLIT DBL ACT ACTUATOR 35X336, NEW

AMAT 0020-08299 CLAMP, INNER SHIELD, 300MM SIP , NEW

AMAT 0020-30447 PLATE,BLOCKER SX 6 IN , NEW

AMAT 0140-78535 CABLE IM SENSOR-CNTRL, BLKHD 2 SYSTEM, WORKING

AMAT 0820-90081 SENSOR. LIQUID LEVEL, CAPACITIVE. 4.5" ES-SP-119 , NEW

ASTex  Astron AX7651 REMOTE PLASMA SOURCE GENERATOR, WORKING

AMAT 0140-05085 CABLE X-CAR, MOTORS MNFRM BKHD, PWR, WORKING

AMAT 0020-25077 SHIELD LOWER 8 101 G-12 SST , NEW

AMAT 0140-02781 CABLE SYSTEM INTERLOCK SYSTEM, 300MM 36, WORKING

AMAT 0195-01644 LCWE/PNEUMATIC BOX ASSEMBLY/300MM , USED

PALL CORPORATION T93030300010 VCSC100-04M3F 300