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當(dāng)PLC掃描頻率為10次/min?以下時(shí),既可以采用繼電器輸出方式,也可以采用PLC輸出驅(qū)動(dòng)中間繼電器或者固態(tài)繼電器(SSR),再驅(qū)動(dòng)負(fù)載。
對(duì)于兩個(gè)重要輸出量,不僅在PLC內(nèi)部互鎖,建議在PLC外部也進(jìn)行硬件上的互鎖,以加強(qiáng)PLC系統(tǒng)運(yùn)行的安全性、可靠性。
對(duì)于常見的AC220V交流開關(guān)類負(fù)載,例如交流接觸器、電磁閥等,應(yīng)該通過DC24V微小型中間繼電器驅(qū)動(dòng),避免PLC的DO接點(diǎn)直接驅(qū)動(dòng),盡管PLC手冊(cè)標(biāo)稱具有AC220V交流開關(guān)類負(fù)載驅(qū)動(dòng)能力。
ABB DI620?
ABB DDI01?
ABB DDO02?
ABB DAI05?
ABB DI610?
ABB DO610?
ABB DRA02?
ABB DSAX452?
ABB DSDP170?
ABB PU515?
ABB IMASI23?
ABB ? ? AO610?
ABB DSBC176?
ABB DSDX452?
ABB DSPC172H ?
ABB DSQC322?
ABB DSQC352?
ABB IEMU11?
ABB NTCL01?
ABB PM630?
ABB PU515A?
ABB TC501V150 3BSC550038R3?
ABB TC514V2?
ABB PM511V16?
ABB AI625?
ABB 07KT97B?
ABB 35AE92?
ABB 37911-4-0338124?
ABB 3BSE 008538R1?
ABB PU514 ?3BSE013062R1 ??
ABB TU811V1 3BSE013231R1?
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ABB CM10/200?
ABB DAI01?
ABB DAI03?
ABB DAO01?
ABB DCP02?
ABB DCP10?
ABB DDI03?
ABB DDO01?
ABB DI814?
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LAM 853-026078-025 ?
GE GL-4C35 ?
PHOTOMETRICS 57-10 ?
FUJITSU RM10S-SSM ?
KAPAREL PS4734-5?
CPI YU-191A ?
SUN 540-5559-01? ?
QUARTZ DSS-450 ??
ACDS 98044 ?
IPC C16BM-B1 ?
IPC C16BM-B1?
TELECT 005-0005-0002 ? ?
National GPIB-SPRC-S.U.S?
INFICON FL-9496 ?
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