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AB 1756-L81E-NSE模块PLC参详
AB 1756-L81E-NSE模块PLC参详
AB 1756-L81E-NSE模块PLC参详
AB 1756-L81E-NSE模块PLC型号详解
AB 1756-L81E-NSE模块PLC说明书
70BT01C
70BA01C-S
LT370C
6FC5371-0AA30-0AA1
3G3RX-A4450-E1F
R911311750 2个
MSK100C-0450-NN-M2-BG2-RNNN
140G-J6C3-C25 1pcs 面价10268
140G-J6F3-D20 1pcs 面价10360
FBM237 (P0914XS 2
变频器 :ACS880-01-038A-3 11KW 2台
软启动器 :PSTX60-600-70 1台
PSTX370-600-70 1台
P0916KF-0B 2
P0916QD 2
GJR2391500R1210 ==5块
REF645 KM133BAAA 1
A5E00151091 1
6FX2007-1AE04 2个
GJR2336500R1
UT386B 各3
517-3FP00-0AB0 1
516-3FN02-0AB0 1
CIMR-HB4A0009 400V-2.2KW 2台
变频器操作面板AB 20-HIM-A6 数量1 1724
YOKOGAWA DX204-2-2/BT11M1 DX20422BT11M1
YASKAWA ELECTRIC UAACLA-37AA2K UAACLA37AA2K
YASKAWA ELECTRIC LHBVB027J LHBVB027J
YASKAWA ELECTRIC CIMR-P5U20300F CIMRP5U20300F
WESTINGHOUSE HNCG31200F HNCG31200F
WESTINGHOUSE DS416-1200A-LSIG DS4161200ALSIG
UNITED TECHNOLOGIES TVD6-200-10BL TVD620010BL
TOSHIBA VT130G3U-6400 VT130G3U6400
TOPAZ 97630-21 9763021
TEXAS INSTRUMENTS PLC CVU1000-8001 CVU10008001
TEXAS INSTRUMENTS PLC 505-5103 5055103
TEKTRONIX 3001GPX 3001GPX
TB WOODS WFC-4050-0CHT WFC40500CHT
TAYLOR ELECTRONICS 5202RA2000 5202RA2000
SYMAX 8030-CRM-211 8030CRM211
SYMAX 8010-SFW-601 8010SFW601
STAEFA CONTROL SYS REG9 REG9
SQUARE D SMSDL SMSDL
SPRECHER & SCHUH CA1-800-N CA1800N
SIEMENS 6SN1-145-1BA01-0DA0 6SN11451BA010DA0
SIEMENS 6SE9-212-0DA40 6SE92120DA40
SIEMENS 6SE6440-2UE31-5DA1 6SE64402UE315DA1
SIEMENS 6SE3-212-7DA40 6SE32127DA40
SIEMENS 6FX1-113-4AD01 6FX11134AD01
SIEMENS 6FM1-470-4BA25 6FM14704BA25
SIEMENS 6FM1-470-4BA20 6FM14704BA20
SIEMENS 6ES7-624-1AE00-0AE3 6ES76241AE000AE3
SIEMENS 6ES7-444-1MX0-00XE0 6ES74441MX000XE0
SIEMENS 6ES7-317-2EK13-0AB0 6ES73172EK130AB0
SIEMENS 6ES5-982-1AA11 6ES59821AA11
SIEMENS 6ES5-926-3SU11 6ES59263SU11
SIEMENS 6ES5-902-3SA12 6ES59023SA12
SIEMENS 6DS1308-8AA 6DS13088AA
SIEMENS 6AV7-801-0AA00-2AC0 6AV78010AA002AC0
SIEMENS 1PH7133-2ND02-0CA0 1PH71332ND020CA0
SICK OPTIC ELECTRONIC IVC-3D21112 IVC3D21112
SEW EURODRIVE SF4DT71D4BMGHRASDX3 SF4DT71D4BMGHRAS
SANYO DENKI 65AA030TXR03 65AA030TXR03
RELIANCE ELECTRIC SA3000DC070 SA3000DC070
RELIANCE ELECTRIC B/M-805401-5R BM8054015R
RELIANCE ELECTRIC 805401-1R 8054011R
RELIANCE ELECTRIC 805401-15 80540115
RELIANCE ELECTRIC 803456-21T 80345621T
RELIANCE ELECTRIC 50R4160 50R4160
RELIANCE ELECTRIC 45C-360 45C360
RELIANCE ELECTRIC 2EC4040 2EC4040
RELIANCE ELECTRIC 29422-V 29422V
RELIANCE ELECTRIC 1KSK06307-WQ 1KSK06307WQ
RELIANCE ELECTRIC 1KSK05412-PQ 1KSK05412PQ
RELIANCE ELECTRIC 0-52837 052837
RELIANCE ELECTRIC 0-51893-1 0518931
PERCEPTRON 9110014 9110014
PCME LTD DM-990 DM990
PACIFIC SCIENTIFIC M5HLON-00115-00 M5HLON0011500
ONE AC CORP CX4196-NG CX4196NG
OMRON 3G3RV-A2300-AV1 3G3RVA2300AV1
OKUMA E4809-032-487 E4809032487
NSK 7028A5TDBC7P4 7028A5TDBC7P4
NDC P680163 P680163
MULTILIN SR750-P5-G5-S5-HI-A20-RTM8 SR750P5G5S5HIA20
MOORE PRODUCTS 39MBXNAN 39MBXNAN
MOORE PRODUCTS 15799-91-8 15799918
MODICON PC-CBCA-000 PCCBCA000
MODICON MM-PM22-300 MMPM22300
MODICON AS-L206-011 ASL206011
MODICON AS-D013-200 ASD013200
MODICON AS-D013-000 ASD013000
MODICON AS-C384-204 ASC384204
MODICON 92-00597-05 920059705
MITSUBISHI A6PHP-115UL A6PHP115UL
MITSUBISHI A3U-CPU A3UCPU
METRA INSTRUMENTS M1010BT-COS-E-IS M1010BTCOSEIS
MEASUREX 51402797-100 51402797100
MEASUREX 20000981 20000981
MEASUREX 084736-00 08473600
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。
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。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。
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。
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。