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1771-P7 AB模块 罗克韦尔

1771-P7 AB模块 罗克韦尔

分  类:可编程控制器

品  牌:AB

厂  商:岳航计算机工程(厦门)有限公司

型  号:1771-P7

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发布时间:2014-03-31 14:17 浏览人数:

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在I/O模块的安装时,根据不同的系统,通常同型号的模块放置在一起。但是,如果
对于输出模块与输入模块形成回路的,则可以将一个回路的参量所涉及的模块放置在
一个机架上(或一个CPU所控制的机架上)比较合理。有的*****在设计的时候不
会考虑这一点,你可以调整过来。
        在选型的时候,因为各种PLC都有大型、中型、小型的分别,这些分别主要是由
CPU模块的性能不同造成的。在实际上,并非一定大型的功能就是合适的。除了价格方面
的考量之外,主要是,如果控制点数不多,小型的CPU模块完全可以胜任,则小型的CPU反
而比大型的CPU模块工作还要可靠一些。因为,小型的CPU所涉及的资源少,而大型CPU的资
源多,在程序执行中,为处理那些程序不需用到的资源时,也要分配时间去处理,这样不仅
造成资源的浪费,可能在程序处理上不及小型CPU可以更单纯和稳定地工作。  
        在设计交底的过程中要指出的是,对于设计中的任何变更,你只能提建议,而不是
擅自做修改。因为,你的职责是按照设计施工,而不是设计,因此,对于任何你发现的不合
理的东西,你可以提出意见,但必须要等到设计变更确认书下到你手里后,你才能按照变更
后的设计工作,尽管这个变更可能是你的意见。还有,即使最初的设计也是你做的,你在
变更后,也要通知客户,并取得客户的书面同意。

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EPSON SKP338 I/O PROTECT BOARD M1039 IBI, M4V0


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Symbol Model: LS-1220-I200A Fix Mount Laser Scanner


ANVIL N210RYBX24V4 RELAY BOX 960913 01112 5 QTY 3


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TDK M8450A MSIO LED Controller, Mfg. No. 93L002


ALLEN BRADLEY 800H-DP 1# C 800T-XD1 GREEN SWITCH


Mitsubishi A6TBXY36 Terminal Block , 32 Points, 2


MOTOROLA MC68HC000P10 DIP QTY (2)


ALLEN BRADLEY 800H-FRXT D4 SER F 800T-XD4 RED SWITCH


Potter & Brumfield Model: W58-XB1A4A-3 Switch


ACDC ELECTRONICS 24N5.4-9 PERKIN ELMER POWER SUPPLY


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H.B. FULLER 2-011-00 APPLICATOR NOZZELS QTY (23)


ALLEN BRADLEY 800MR-Q24 SER. D SMALL PILOT LIGHT. ...


ANORAD 7705 MAW: 7705 20X AXIS CMOS-TTL BOARD TESTED


Allen-Bradley: 815-B0V4 Overload Relay. Series K


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HOTWATT 650W 240V 8509 HEATER QTY (3)


OSBORN 43-K-20 CODE 35087 5/8"OD .005 STEEL QTY 12


HOTWATT 650W 240V SC50-10.5 9324 HEATER QTY (5)


Allen Bradley 800T-H5, 2 Position Selector Switch


Allen Bradley Model: 1770-SC Data Station Connector


Allen-Bradley: 800T-PST16 Small Pilot Light w/o Lens


Texas Instruments (Siemens) Mdl: 5TI-1082-2 Sequencer


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Red Lion Controls Model: ASTC0000 Sensor W


Square D Class: 9001 / Type: KM38 Push Switch, Ser. H


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Square D FAL32060 Thermal-Magneti?c Circuit Breaker


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IDEC Model: 41-10650 Push Button Switches, 3


RTC (Radiant Technology Corp) 3AQ-302-11-H Heater


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(2) Compact Air Model: AS2X212-TR Cylinder, =


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Allen-Bradley Cat. #: 700-C110A1 Contactor. Series B


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Magnecraft Electric Co.: W6210DSX-1 Solid State Relay


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Package: Buss Model: GDA-6.3A Fuses, 50 Each Box


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MANIX 21 CONTROL ASSEMBLY 177


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