PLC控制器抗干擾的軟件措施6AV6640-0CA11-0AX0西門(mén)子觸摸屏 由于電磁干擾的復(fù)雜性,僅采取硬件抗干擾措施是不夠的,要用PLC控制器的軟件抗干擾技術(shù)來(lái)加以配合,進(jìn)一步提高系統(tǒng)的可靠性。采用數(shù)字濾波和工頻整形采樣、定時(shí)校正參考點(diǎn)電位等措施,有效周期性干擾、防止電位漂移。采用信息冗余技術(shù),設(shè)計(jì)相應(yīng)的軟件標(biāo)志位;采用間接跳轉(zhuǎn),設(shè)置軟件保護(hù)等。例如對(duì)開(kāi)關(guān)量輸入信號(hào),采用定時(shí)器延時(shí)的方式多次讀入,結(jié)果一致再確認(rèn)有效,提高了軟件的可靠性。 5、正確選擇接地點(diǎn),完善接地系統(tǒng)。 良好的接地是保證PLC控制器可靠工作的重要條件,可以避免偶然發(fā)生的電壓沖擊危害,還可以抑制干擾。
From United Kingdom
INDRAMAT ECO DRIVE DKC02.3-040-7-FW FWA-ECODR3-SMT-02VRS-MS
From Germany
ECO DRIVE DKC02.3-040-7-FW FWA-ECODR3-SMT-02VRS
From Germany
REXROTH INDRAMAT ECODRIVE DKC02-3-040-7-FW+ECODR3-SMT-02VRS+BGR DKC02.3LK SCK02
From Germany
REXROTH INDRAMAT ECODRIVE DKC02-3-040-7-FW+ECODR3-SMT-01VRS+BGR DKC02.3LK SCK02
From Germany
INDRAMAT Eco Drive Controller DKC01.1-040-7-FW FWA-ECODRV-ASE-02VRS-MS
From Germany
INDRAMAT ECO DRIVE DKC03.3-040-7-FW+BGR DKC03.3LK PBK02+FWA-ECODR3-FGP-02VRS
From Germany
INDRAMAT ECO DRIVE DKC03.1-040-7-FW // FWA-ECODRV-PDP-03VRS-MS
From Germany
REXROTH INDRAMAT ECODRIVE DKC02-3-100-7-FW+ECODR3-SMT-02VRS+BGR DKC02.3LK SCK02
From Germany
REXROTH INDRAMAT ECODRIVE DKC03.3-040-7-FW+BGR DKC03.3LK PBK02+FWA-ECODR3-FGP
From Germany
Indramat ECO Drive Typ DKC01.3-040-7-FW inkl. Firmware Mod. FWA-ECODR3-SMT-02VRS
From Germany
INDRAMAT ECO DRIVE DKC02.3-040-7-FW FWA-ECODR3-SMT-02VRS-MS
From Germany
REXROTH INDRAMAT ECODRIVE DKC02-3-100-7-FW+ECODR3-SMT-02VRS+BGR DKC02.3LK SCK02
From Germany
ECO DRIVE DKC02.3-040-7-FW FWA-ECODR3-SMT-02VRS
From Germany
REXROTH INDRAMAT ECODRIVE DKC02-3-040-7-FW+ECODR3-SMT-02VRS+BGR DKC02.3LK SCK02
From Germany
REXROTH INDRAMAT ECODRIVE DKC02-3-040-7-FW+ECODR3-SMT-01VRS+BGR DKC02.3LK SCK02
From Germany
INDRAMAT Eco Drive Controller DKC01.1-040-7-FW FWA-ECODRV-ASE-02VRS-MS
From Germany
INDRAMAT DKC02.1-40-7-FW FWA-ECODRV-SSE-03VRS-MS
From Germany
INDRAMAT ECO DRIVE DKC03.3-040-7-FW+BGR DKC03.3LK PBK02+FWA-ECODR3-FGP-02VRS
From Germany
Indramat ECO Drive Typ DKC01.3-040-7-FW inkl. Firmware Mod. FWA-ECODR3-SMT-02VRS
From Germany
INDRAMAT ECODRIVE DKC01.1-040-7-FW FWA-ECODRV-ASE-02VRS-MS
From Germany
National Instruments Model: 182009-02 GPIB / X5 Cable
NATIONAL INSTRUMENTS 763061-01/02/03 REV C TYPE -X2 GPIB INTERFACE CABLES
From Israel
NATIONAL INSTRUMENTS 763061-02 TYPE-X2 GPIB CABLE 2M
National Instruments GPIB Cables 763507-02 REV 1, Type-X2, 2 meters
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National Instruments Type X2 763061-02 REV C 2 Meter GPIB Cable P/N 12708
National Instruments Model: 763061-02 GPIB Cable. Type X2, Rev. C
NATIONAL INSTRUMENTS 763061-02 REV C TYPE -X2 IEEE-488 GPIB INTERFACE CABLE 2m
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NATIONAL INSTRUMENTS TYPE-X2 GPIB Shielded Cable 763061-02 2.1 METERS LONG
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Shielded 2x GPIB 76306-02 Double-Shielded Cable, Shielded Plug-Receptacles 2 m
Krohn-Hite 3940 LP/HP/BP/BR Butterworth Bessel Dual Channel Filter
Bizerba LP 204 - II T Etikettendrucker Ex-geschützt mit EXTA-Tastatur #5084
From Germany
HP 8510C 20GHz Vector Network Analyzer w/8341A and 8515A, Complete and Working
Pairgain Avidia 3000 AV210 AV311 AV421 AV541LP System #5136
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JoeCo BlackBox BBR64-DANTE 64-track recorder, DANTE dig...
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BOBBY BUTLER 95 CARD LOT 11-12 UPPER DECK HOCKEY UD # 71 OTTAWA SENATORS 95 CT.
PETER FORSBERG 20 CARD LOT 05-06 UPPER DECK ICE UD # 71 FLYERS 20 ct. 2005-06
CT UD71 Unidrive Serial comm interface module NIB
From Hong Kong
CONTROL TECHNIQUES UD71 USPP UD71
CONTROL TECHNIQUES UD-71 275064 SERIAL COMMUNICATION INTERFACE MODULE ***XLNT***
NORDSON GFNB4B28-UD71XH-4G-B3 USPP GFNB4B28UD71XH4G
CONTROL TECHNIQUES UD-71 275675 SERIAL COMMUNICATION INTERFACE MODULE ***XLNT***
CONTROL TECHNIQUES UD-71 273236 SERIAL COMMUNICATION OPTION MODULE ***XLNT***
CONTROL TECHNIQUES UD-71 283353 SERIAL COMMUNICATION INTERFACE MODULE ***XLNT***
CONTROL TECHNIQUES UD-71 275687 SERIAL COMMUNICATION INTERFACE MODULE ***XLNT***
CONTROL TECHNIQUES UD-71 276741 SERIAL COMMUNICATION INTERFACE MODULE ***XLNT***
CONTROL TECHNIQUES UD-71 278836 SERIAL COMMUNICATION INTERFACE MODULE ***XLNT***
Control techniques Unidrive UD71 module, Excellent condition 6 months warranty
From United Kingdom