廈門市泰尼電器有限公司
主營產(chǎn)品: AB模塊PLC |
廈門市泰尼電器有限公司
主營產(chǎn)品: AB模塊PLC |
參考價 | 面議 |
根據(jù)不同DCS系統(tǒng)的要求,軟件及數(shù)據(jù)庫的備份管理方式也不相同。一般系統(tǒng)軟件要求具備能*重裝系統(tǒng)的整套功能,除設(shè)備投產(chǎn)時隨機提供的重裝軟件外,應(yīng)具備系統(tǒng)正常運行后的不少于兩次的系統(tǒng)備份軟件。應(yīng)用軟件(數(shù)據(jù)庫)應(yīng)及時備份,對于極小的改動,可不必進行備份,但應(yīng)在系統(tǒng)修改記錄上進行記錄,以防系統(tǒng)因故障恢復(fù)時采用舊的數(shù)據(jù)庫進行重裝。對于數(shù)據(jù)庫的修改,一方面要下裝到控制處理機,同時要存到工程師站硬盤,為安全起見,還應(yīng)存儲到軟盤或其他工作站上,以增加可靠性。舊的備份磁盤等不應(yīng)超期使用,以防止超過其壽命而造成數(shù)據(jù)丟失。
:張亮(工程師) 專線:
24小時移動專線: 【】
1747-AIC---1747-AIC
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為防止MIS系統(tǒng)或其他與DCS聯(lián)網(wǎng)的系統(tǒng)給DCS系統(tǒng)產(chǎn)生不良影響,在設(shè)計二者的通信程序時,應(yīng)確保DCS傳輸數(shù)據(jù)的單向性,防止MIS系統(tǒng)向DCS發(fā)送數(shù)據(jù)或病毒,危及DCS系統(tǒng)的安全。
MINERVA NETWORKS VNP-150 IP VIDEO ENCODER
LUXO 23711 BINOCULAR ZOOM MICROSCOPE WITH BOOM STAND 7x - 45x 10x OPTICS
MOTION ANALYSIS VP320 CAMERA VIDEO PROCESSOR DIGITIZER
HASKRIS R050 RECIRCULATING CHILLER REFRIGERATED R0-50
NEWPORT 560 LASER DIODE DRIVER ~ 560B LDD
ACTERNA WANDEL W&G PCM-4 PCM4 CHANNEL MEASURING SET 984/02 958 24 BN
PTS 200 S601G FREQUENCY SYNTHESIZER 200 MHZ PTS200 ~ 250 S601G SIGNAL GENERATOR
SPIRENT DLS-5402DC DUAL OUTPUT NOISE INJECTOR GENERATOR
NIKON SMZ-10 STEREO PHOTO MICROSCOPE STEREOZOOM AFX
AGILENT HP N1020A 6 GHZ TDR PROBE, ACCESSORIES & CASE FOR 86100A 83480A & 54750
SANPLATEC SANPLA DRY KEEPER HORIZONTAL DESICCATOR
APHEX 9000R AUDIO RACK W 9301A COMPELLOR 9721 DOMINATOR
UDT S2575 & 2575 SENSOR MINISPHERE COMBINATION
TEKTRONIX SG504 LEVELED SINEWAVE GENERATOR TEK TM500
MOLEX HYDROLIC CRIMPER WITH DIE
NEWPORT 325 TEMPERATURE CONTROLLER ANALOG INTERFACE
KEITHLEY 7012-S 4X10 2-POLE MATRIX CARD FOR 7001 7002
ACTERNA WANDEL W&G PCM-4 PCM4 CHANNEL MEASURING SET 958/24 IEEE 488 984 02 03
HP AGILENT 81553SM FABRY PEROT 1550 LASER SOURCE FOR 8153A 8163A 8164A & 8166A
HP AGILENT 8447E AMPLIFIER 0.1-1300 MHZ
ACTERNA WANDEL W&G PCM-4 PCM4 CHANNEL MEASURING SET 984 00 980 01
NEWPORT UTM-100 CC1HL MOTORIZED LINEAR TRANSLATION STAGE 100 MM TRAVEL RANGE
HP AGILENT J2294C ADVISOR MODULE J2300C/D E1 ISDN
DAGE DAGE-CAL-JIG100?KG 100KG SHEAR CALIBRATION JIG 4000 BOND TESTER
ALNOR 6006 AP VELOMETER SERIES 6000 P AIR VELOCITY METER & ACCESSORIES 6006AP
RF PLASMA PRODUCTS LES-300 CONTROLLER LASER ENDPOINT SYSTEM 300
ALLEN BRADLEY 2802-CAM1 LINE SCAN CAMERA W 2801-EIA
AIXTRON 40080046 INFICON LEYBOLD TRANSDUCER 761-601-G1
ACTERNA WANDEL W&G PCM-4 PCM4 CHANNEL MEASURING SET 980 03 BN 984 02