通用型3BHB021400R0002驱动模块批发价
通用型3BHB021400R0002驱动模块批发价
通用型3BHB021400R0002驱动模块批发价
通用型3BHB021400R0002驱动模块线路图
通用型3BHB021400R0002驱动模块引脚图
通用型3BHB021400R0002驱动模块接线图
3BHB021400R0002功能模块独立的概念是功能模块化、抽象、信息隐蔽和局部化概念的直接结果。
3BHB021400R0002抽象是指对事物、状态或过程之间所存在的某些相似的方面集中和概括起来,而暂时忽略他们之间的差异,即考虑抽象事物的本质特征而暂时不考虑他们的细节。信息隐蔽是指再设计功能模块时使得一个功能模块内所包含的信息(过程或数据),对于不需要这些信息的功能模块来说是不能访问的。
3BHB021400R0002信息隐蔽原则对于以后在软件维护期间修改软件时会带来极·的好处,因为大量数据和过程是软件的其他部分所不能觉察的,因而再对某个功能模块修改时就不大会影响到软件的其他部分,所谓局部化是指把一些关系密切的软件元素在物理位置上彼此靠近。
3BHB021400R0002功能模块独立性是通过制定具有单一功能并且和其他功能模块没有过多联系的功能模块来实现的。每个功能模块只涉及该软件要求的一个具体子功能,而且与软件结构的其他部分的接口是简单的。
3BHB021400R0002功能模块独立性好的软件接口简单,易于编制,独立的功能模块也比较容易测试和维护,限制了功能模块之间由于联系紧密而引起的修改副作用。独立性是保证软件质量的重要因素。
140NOE77101 1 面价16871
BMEP581020 2-----------
BMXFCW303 1
6ES7510-1DJ01-0AB0-----------
BMXAMI0810 1
BMXAMO0410 2
BMXAMI0800 2
THS-IP211 15
BMXDDO3202K 1
BMXAMO0802 2
6ES7288-1SR30-0AA0 1
TM221CE40R 1
BMEXBP1200 1-----------
TM3DI16 1
BMENOC0301 ---------------
BMXNRP0201 1
490NAC0100 2
BMXFTB2800 1
BMXFTB2010 1
XBE-1000 2
BMXDDO6402K 2
BMXDDI6402K 2
BMXDDM3202K 1
140CRP93X00 1
140CRA93X00 1
6ES7288-3AE04-0AA0 1
TM3DI8 3
TM3DQ8R 3
6ES7231-4HF32-0XB0 12只
6ES7234-4HE32-0XB0 12只
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6GK5004-2BD00-1AB2
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6ES7972-0AA02-0XA0 1
3NP1123-1CA20 4
3NP1133-1CA20 4
6ES7922-3BC50-0AB0 1
D800436F-511
A20B-8200-0560 各1
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3HAC028357-001 DSQC 679------------
6SL3760-0HF00-0AA0 1
6SL3700-1AH41-2AA0-Z D02+K75+M26+M87+M90 1
123-1AA00-0CA1 2
322-1HF0A-0AA0 1------------
322-1HF01-0AA0------------
6FC5203-0AF03-0AA0 1-------------
通讯线TPC-S7200 1
IC200PBI001
IC698PSA100 各一
TSXPSY3610 2个--------------
62BMO06DXEAS---------------
UNITROL-1010 1
3BHE035301R0001---------------
3BHE035301R0002------------
R900953564 3
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R900929121 3
R901087088 3
SST-PB3-CLX-RLL 无面价 1--------------
6SE6400-0AP00-0AB0 1
20-750-2262C-2R数量4 面价2209
20F11NC037JA0NNNNN数量2 面价26263
20F11NC072JA0NNNNN数量2 面价48571
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TM200CE40T 21个
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2094-BC01-M01-M 1
2090-CPWM7DF-16AA15 2215 1
2090-CFBM7DF-CEAA15 2404 1
1794-AENTR 数量1 7765
1747-L542/04C 数量1 58844------------
1769-IQ16 数量1 3171
1769-OB16 数量1 4169
1794-OB32P 数量1 5904
1794-IB32 数量1 4664 22年
1794-IB16 数量1 3231
321-1BH02-0AA0 数量1 ------------
321-1BL00-0AA0 数量1---------------
331-1KF02-0AB0 数量1------------
332-5HF00-0AB0 数量1--------------
1769-PA4 数量1 5946
1756-OB32 A F/W REV2.4 数量2 9636
1756-OF4 数量2 17344
1794-ADN 数量1 5915
1794-OA8 数量1 3358
1794-TB3 数量2 2038
1746-P4 数量1 17551
1746-NI16I 数量1 29374------------
1746-NI4 数量1 16498 22年-----------
1747-ASB 数量1 17516 19年
1794-AENTR 数量2 7765
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