(一) 运算器
1、 算术逻辑运算单元ALU(Arithmetic and Logic Unit)
ALU主要完成对二进制数据的定点算术运算(加减乘除)、逻辑运算(与或非异或)以及移位操作。在某些CPU中还有专门用于处理移位操作的移位器。
通常ALU由两个输入端和一个输出端。整数单元有时也称为IEU(Integer Execution Unit)。我们通常所说的“CPU是XX位的”就是指ALU所能处理的数据的位数。
2、 浮点运算单元FPU(Floating Point Unit)
FPU主要负责浮点运算和高精度整数运算。有些FPU还具有向量运算的功能,另外一些则有专门的向量处理单元。
★✪分散式控制系統(DCS):
ABB Masterview 850/1
Bailey Control Net90/Infi90
Fisher Control Provox
FOXBORO I/A
Honeywell TDC2000/3000
Leeds & Northrup MAX1000
YOKOGAWA Micro XL
✪可程式控制器(PLC):
Invensys Foxboro(福克斯波罗):I/A Series系统,FBM(现场
输入/输出模块)顺序控制、梯形逻辑控制、事故追忆处理、数模
转换、输入/输出信号处理、数据通信及处理等。
Invensys Triconex: 冗余容错控制系统、基于三重模件冗余
✪(TMR)结构的**现代化的容错控制器。
Westinghouse(西屋): OVATION系统、WDPF系统、WEStation系
统备件。
Rockwell Allen-Brad
Reliance瑞恩、SLC500/1747/1746、
MicroLogix/1761/1763/1762/1766/1764、
CompactLogix/1769/1768、
Logix5000/1756/1789/1794/1760/1788、PLC-5/1771/1785 PLC
CPU等。
Schneider Modicon(施耐德莫迪康):Quantum 140系列处理器
、控制卡、电源模块等。
ITE SIEMENS JL3-F400MOLDED CASE CIRCUITBREAKER 400 AMP TRIP 3POLE 600VAC
SQUARE D LC36400 S1400 AMP CIRCUIT BREAKER 3 POLE 600V AL600LI5
GENERAL ELECTRIC SGHA36AT0600 HI
NIB LITTELFUSE LA70P10004 POWR-GARD
SIEMENS MD63T800 I-T-E CIRCUIT BREAKER TRIP UNIT 800 AMPS 3POLE TYPE MD6
FERRAZ SHAWMUT A13X4000-128TA AMP-TRAP FUSE 4000A 130V
F/S CUTLER HAMMER AAL1RPK AL/LO AUX.
JOSLYN CLARK 5M-054 MAIN POLE N/O, NAED: 85251
ITE SIEMENS MD63T00CIRCUIT BREAKER TRIPUNIT 800AMP
FERRAZSHAWMUT AMP-TRAP A70P400-4TA FORM 101 400A
SIEMENS3NE3227 FUSES SITOR250A, 1000VA.C.
NIB MITSUBISHI NF225-CWU3 150A, 3POLE, 50/60HZ, 240VAC NF225-CWU
NIB BUSSMAN170M5694 FUSES 500A, 1250-1300 V
NIB SQUARE D FA24100BC MOLDED CASE
ABB SACE S6 CIRCUITBREAKER SACE-PR211 3POLE
NIB GENERAL ELECTRIC9F60FJD080
SQUARE D FIL26020 I-LIMITER
GENERAL ELECTRIC PLPS1G01
BUSSMANN KRP-C1500 HI-CAP TIMEDELAY FUSES 600V
FACTORY SEALED COOPER 3437851B01M
BUSSMANN FWP-40A14FA FUSES 40AMP, 700VAC HIGH
FACTORY SEALED GENERAL ELECTRIC 9F62DDD065
NIB AB CHANCE C705-0251 8.3 K.V. MAX. 3-PHASE
GENERAL ELECTRIC EJ 0-1D FUSES9F60FJD080, 80E AMP
SQUARE D MHL360008MSERIES 2 MOLDED CASECIRCUIT BREAKER 800AMP 600V 3 POLE
WESTINGHOUSE MC3800FCIRCUIT BREAKER 1284C76G02 800AMP W/ 255P174H03B
WESTINGHOUSE HMCP250W5W CIRCUIT BREAKERS 1491088G10, 250AMP
NIB MITSUBISHI NF225-CWU3 CIRCUIT BREAKER 125A, 3P, NF225-CWU NF225CWU3125
FUJI ELECTRIC SA403HFUJI AUTO BREAKER 3POLE 300A AC660V DC250V
SQUARE D FR34080 SERIES 2
NIB MERLIN GERIN NFHL36040
BUSSMAN170M5694 FUSES 500A, 1250-1300 V
NIB COOPER 3437851B01M
SQUARE D FAL220801021
SQUARE D LAL36300 MOLDED CASE
NIB WESTINGHOUSE 2606D95G12 DE-ION
CUTLER-HAMMER EATON3-POLE CIRCUIT BREAKER W/ 600 AMPS
SQUARE D KAL26250 MOLDED CASE CIRCUIT BREAKER 600V 250A
BUSSMANN FRS-R-4 DUAL ELEMENTTIME DELAY CLASS RK5
BUSSMANN FWA-400OAH 4000AMP 130V AC
NIB FUJI ELECTRIC BW250JAGU-3P150
WESTINGHOUSE HMCP050K2C CIRCUIT BREAKER STYLE 6630C87G15
ITE 427508 CURRENT LIMITING FUSE 250MVA 48KV 50E AMP
NIB GOULD SHAWMUT A4BY400 AMP-TRAP FUSE400 AMP FORM 480
ITE SIEMENS KM3-T500CIRCUIT BREAKER TRIP UNIT 500AMP 3POLE
WESTINGHOUSE HLB3150T STYLE: 5680D04G23AB
SQUARE D HDL36025 CIRCUIT
ITE SIEMENS JL3-F400CIRCUIT BREAKER 225AMP