厦门亿佳天辰贸易有限公司
ABB , DCS卡件 , AB , 1756 , 1747 , 1785系列
MVI69-HART CPU模块
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MVI69-HART CPU模块

DCS多层分级控制系统


DCS的基本设计思想是采用控制分散、操作和管理集中的思路,实现多层分级控制和合作的结构。目前,主要应用在冶金、电力和石化等领域。


DCS 是实现多层分级控制的系统,在使用的过程中具有两个基本的分级环节:现场控制单元和操作站。


DCS基本分级环节


● 现场控制单元:


指远离控制中心而在现场附近使用的控制系统,可根据DCS本身机构实现对现场的监控和控制。现场控制单元的使用需要准备不同的设备,如配置插件,即根据系统的要求配置相应的中央处理器插件、电源插件和通信插件等,为后期的分级控制奠定基础;


冗余配置是分级控制系统中重要的环节之一,在配置的过程中要对主机插件、电源插件和通信插件等实现冗余配置;实现随现场的分级控制和监测需要对不同的硬件添加DCS,确保分级控制的可靠性。


● 操作站:


操作站中记录并显示控制系统中的不同数据,是展示人机交互的场所,常用的操作站中包括系主机控制、显示设备和键盘输入设备等,是主要使用人工操作记录和反馈的场所,主要实现显示不同数据、报警和操作等多种重要功能。

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SST BALL BEARING 6300ZZ/6300414050

SST Bearing 09-814, L44643

SST Bearing 09-814, L44643

SST BEARING 6004-ZZ NSPP 6004ZZ

SST BEARING 6004-ZZ NSPP 6004ZZ

SST BEARING 6205-C3        6205C3

SST BEARING 635ZZ-Q 635ZZ 13/64"          

SST Bearing Corp Pillow block Bearing SBFTN205-16           IN BOX

SST Bearing Corp. 5301Z Bearing

SST Bearing Corp. MG306-2RS 1-3/16" x 3-1/2"

sst bearing hc 205-16 in square pillow block with grease zerk

SST BEARING R10 NSPP R10

SST BEARING R10ZZ NSPP R10ZZ

SST BEARING R4ZZ NSPP R4ZZ

SST BEARING SQUARE BORE BEARING, W208PPX, 1-1/8" SQUARE BORE, SST, CHINA

SST BEARING UCP204-12        UCP20412

SST BEARING UCP204-12 NSPP UCP20412

SST BM style split tapered bushing, Type P2 1-1/2" bore,          

SST CFR4Z Bearing 12 Pack          

SST Cone Bearing 741-04129

SST CONVEYOR ROLLER, R1618NASQH3, 16" BETWEEN FRAME, 1-7/8" DIAMETER, 7/16" HEX

SST CONVEYOR ROLLER, R1627IASQH6, 16" BETWEEN FRAME, 2.75" DIAMETER, 11/16" HEX

SST Corporation 2-3/16" Taper Bushing (SK 2-3/16)

SST Corporation AK41H Cast Iron 1.56" Bore 1 Groove 3.95" OD Sheave          

SST CORPORATION Bushings P1 1 3/8

SST Corporation Keyway Size Cast Iron Single Groove Finished Bore AK34-5/8AT

SST CORPORATION Sheave AS34-5/8" Bore Single Groove Pulley          

SST CORPORATION SST 38037 (Power Transmission Division) Sheave

sst corporation taper bushing type h-1 lau parts # 60331508

SST CORPORATION V-BELT PULLY PART # 34713 -          

SST CORPORATION, FL205 ,FLANGE BEARING WITH GREASE ZERK

SST F203 Flange Bearing, 2 Bolt, 5/8" Bore,          

SST F204 Housing 5/8" 4 Bolt UC202-10 Flange Mount Bearing          

SST FLANGE BEARING UCFS206-18, 1-1/8" bore -          

SST FLANGE BEARING UCFS206-19, 1-3/16" bore -          

SST FT203 Flange Mount Ball Bearing Unit, 2 Bolt, 5/8" Bore,          

SST II 60NB17H, 1" Needle Bearing, 17 Tooth, 3/4" Pitch Idler Sprocket NWOB

SST INSERT BEARING, 6002RSV, 6002 RS, 15 X 32 X 9 MM, 11 MM HEX, LOT OF 4

SST Keyed Split Taper Bushing 7/8 inch bore H-7/8 2&1/2 inch flange

SST Keyed Sprocket 50BS16H 7/8 50BS16H78 16 Teeth 7/8" Bore          

SST Keyed Sprocket 50BS19H-1 50BS19H 1 50BS19H1 1" Bore 19 Teeth          

SST MC4016H - 1, 1" Bore Sprocket for #40 Chain with 16 Teeth NOS

SST MC4016H-1 Sprocket

SST MICRO P381 Transistor 3-Pin Through Hole           Quantity-1

SST P-115 1-15/16" (1.938") WELD ON TYPE HUB WITH 2 SET SCREWS

SST P206 Pillow Block, Low Center Height Style, 1-11/16" from bottom to center

SST PH29EE010-150-3CF IC 32Pin Integrated Circuit PDIP - Lot of 5 Pcs TESTED

SST PILLOW BLOCK BALL BEARING NIB 901110-052 102055

SST ROLLER CHAIN SPROCKET, 50BS17H, 50BS17H-1, 1" BORE, 17 TEETH, 3-3/4" OD

SST ROLLER CHAIN SPROCKET, 50BS22H 1-7/16, 1-7/16" BORE, 4-11/16" OD

SST SBFTN205-16 Two Bolt Flange Mounted Bearing 1 NIB

SST Shaft Collars 2 1/8"

SST SHEAVE PULLEY, IVP 71, 1-5/8" BORE, 7-1/8" DIAMETER

SST SHIELDED BEARING, 6203Z5/8, 6203 Z, 6203Z, 17 X 40 X 12 MM, LOT OF 4

SST SINGLE ROW BALL BEARING 6305Z, 25 X 62 X 17 MM

SST SINGLE ROW BALL BEARING 6407 NIB

SST SINGLE ROW BALL BEARING 6407 NIB

SST SPROCKET 40BTB32H - 1610TB -          

SST SST39VF040-70-4C-NHE FLASH MEMORY

SST Tapered Roller Pinion Bearing 1-3/8" L68149-L68111 NIB

SST TSTH8N80        TSTH8N80

SST W5203-2RS, 17mm x 40mm, Double Row Ball Bearing

SST WC87500 Bearing

SST, QD BUSHING BORE SPROCKET, 40SH28, 1-3/4" BORE, 4-3/4" OD

SST, ROLLER CHAIN SPROCKET, 80BS15H 1-3/8, 1-3/8" BORE, 5-5/16" OD

SST, TAPERLOCK BUSHING BORE SPROCKET, 60BTB21H 2012, 60 CHAIN, 2-3/4" BORE

SST, TAPERLOCK BUSHING BORE SPROCKET, 80BTB21H 1610, 3-1/4: BORE, 4-1/2" OD

SST, UCS-0317, PROFIBUS DP SLAVE MODULE

SST-012-2025-CLEAR HEAT SHRINK TUBING 4.77MM ID FEP .188" TO .115" 50FT TEFLON

SST-12 BLACK SHRINK-N-SHIELD 48” HEAT SHRINK TUBING

SST1M-C Cable Tie Standard, Pack of 100

SST-2 SST-N2 straight thru hydraulic quick coupling set 316 Stainless 1/4" NPT

SST204 STAINLESS STEEL HOUSING           AMCAN Stainless Steel Housings Bearing

SST205           WJB HOUSING

SST205 STAINLESS STEEL HOUSING           AMCAN Stainless Steel Housings Bearing

SST25LF040A / SST25LF040 / 25LF040 / Serial Flash

SST25VF016B 16 MBIT SPI SERIAL FLASH ( Qty 4 ) ***           ***

SST25VF016B-50-4C-S2AF Integrated Circuit           Lot Quantity-10

SST29EE010-90-4C-PH , EEPROM 128K X 8 90NS 32 pin DIP, 11 pieces

SST29LE512-200-3C-NH "Original" SST 32P SMD IC 2 pcs

SST29SF040-55-4C-NHE 2 Mbit 4 Mbit x8 Small-Sector Flash 2 Mbit 4 Mbit (10 PER)

SST29SF040-55-4C-NHE 2 Mbit 4 Mbit x8 Small-Sector Flash 2 Mbit 4 M


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