810-017031-003

810-017031-003

810-017031-003

810-017031-003

DCS在控制上的大特点是依靠各种控制、运算模块的灵活组态，可实现多样化的控制策略以满足不同情况下的需要，使得在单元组合仪表实现起来相当繁琐与复杂的命题变得简单。随着企业提出的高柔性、益的要求，以经典控制理论为基础的控制方案已经不能适应，以多变量预测控制为代表的控制策略的提出和成功应用之后，过程控制受到了过程工业界的普遍关注。需要强调的是，广泛应用各种控制与优化技术是挖掘并提升DCS综合性能有效、直接、也是具价值的发展方向。

在实际过程控制系统中，基于PID控制技术的系统占80%以上，PID回路运用优劣在实现装置平稳、、运行中起到举足轻重的作用，各DCS厂商都以此作为抢占市场的有力竞争砝码，开发出各自的PID自整定软件。另外，根据DCS的控制功能，在基本的PID算法基础上，可以开发各种改进算法，以满足实际工业控制现场的各种需要，诸如带死区的PID控制、积分分离的PID控制、微分先行的PID控制、不完全微分的PID控制、具有逻辑选择功能的PID控制等等

SQUARE D 9003 KC003N SWITCH

Square D 9006-PKF111P 18mm Cylindrical Proximity Switch

SQUARE D 9007 AW-16 SERIES D LIMIT SWITCH 600V

Square D 9007 B23 Lever Arm

SQUARE D 9007 B53ECRBLIMIT SWITCH with 3' CABLE

SQUARE D 9007 B54B2 LIMIT SWITCH

SQUARE D 9007 B62C SERIES A LIMIT SWITCH

SQUARE D 9007 C52G LIMIT SWITCH with 9007 TYPE G OPERATING HEAD

SQUARE D 9007 FTSBFOUNDRY LIMIT SWITCH

Square D 9007-AALever Arm

SQUARE D 900KR4R MUSHROOM BUTTON OPERATOR

SQUARE D 900KY2 2-HOLE CONTROL STATION ENCLOSURE BUTTONS & CONTACTS

SQUARE D 9050 JCK21V20 SER H TIMING RELAY 0.1-SECONDS with SOCKET BASE

SQUARE D 9050 JCK52V20 ELECTRICAL TIMING RELAY 0.3-30 SEC. with SOCKET BASE

SQUARE D 9050 PMDH-11AA TIMER COUNTER 120V

SQUARE D 9050 PMDH-1AA TIMER COUNTER 120V

SQUARE D 9050 R09E RELAY

SQUARE D 9050A020D TIMING RELAY

SQUARE D 9050DER10 On - Delay Relay Yellow Box

SQUARE D 9050JCK18V20 SER. B 120V 0.6S-60M

SQUARE D 9050-JCK70V20 SERIES F TIMIMG RELAY 0.05 SEC-999 MIN with SOCKET BASE

Square D 9065 TR 0,28 Contractor

Square D 9065 TR0,4 Contractor 9065TR0,4

Square D 9065 TR2 Contractor 9065TR2

Square D 9065 TR2,8 Contractor 9065TR2,8

SQUARE D 9065TUP0.86 OVERLOAD RELAY 0.86-1.1AMP

Square D 9070 E0-17 Control Transformer

Square D 9070 For T50-T200 Terminal Cover

Square D 9070T100D4 Transformer 9070 T100D4

SQUARE D 9070T250D20 CONTROL TRANSFORMER

SQUARE D 9070T50D0.05 KVA TRANSFORMER PRI: 240/480V SEC: 120V

SQUARE D 9070T50D83 .05KVA TRANSFORMER PRI: 208/230/277/460V SEC:120V

SQUARE D 9070TF100D0.kVA TRANSFORMER with FUSE BLOCK

Square D 9080 GCB70 Circuit Breaker, 1-Pole, Rating: 7A 250VAC 65VDC

SQUARE D 9080 LBC165208 POWER DISTRIBUTION BLOCK 760 AMP SER C

SQUARE D 9080 PF-SINGLE 1-POLE FUSE HOLDER

Square D 9080GH73 Jumper 6 Pole GK6 50 Amp

SQUARE D 9421LH3 SER B CIRCUIT BREAKER ROTARY HANDLE - NO HARDWARE

SQUARE D 9422 TC-DISCONNECT SWITCH 30A 30 AMP 600VAC/DC

SQUARE D 9422 TC-DISCONNECT SWITCH 30A 30 AMP 600VAC/DC - NO HANDLE

Square D 9423M3 Third Roller Latch Kit

Square D 999320 20-Amp 3-Pole 600-Volt Circuit Breaker 20A 3P 600V

SQUARE D 9999 D1AUXILIARY CONTACT - QUANTITY

Square D 9999 MPX10 Auxillary

SQUARE D 9999 PN10 Contact Attachment

Square D 9999 PRV250 Varistor-Module 9999-PRV250

Square D 9999 PRV48 Varistor-Module 9999-PRV48

SQUARE D 9999 SB-12 POWER POLE

SQUARE D 9999 SX-6 SER B AUXILIARY CONTACTSHIP

SQUARE D A1-E A1B100 PLUG IN 100 AMP 3 POLE CIRCUIT BREAKER CHIPPED

Square D AI-E Frame 20 Amp 1-Pole Circuit Breaker 20A 1P 240VAC

SQUARE D B0.4THERMAL OVERLOAD HEATER ELEMENT

SQUARE D B0.5THERMAL OVERLOAD HEATER ELEMENT

SQUARE D B0.8THERMAL OVERLOAD HEATER ELEMENT

Square D B3.30 Overload Relay Thermal Unit

Square D B3.70 Overload Relay Thermal Unit

SQUARE D BGA34110Y 110A 480/277V BG110

SQUARE D BLUE(2), AMBER(2), REDPILOT LIGHT TYPE KMCLASS 9001

SQUARE D CLASS-9016 GAW-2 VACUUM SWITCH

SQUARE D CONTACTOR 40A RES. 600VAC 208/240V COIL , 8910DPA3Y392

SQUARE D CP100480INFRARED HEATING CONTROL PANEL 2 THREE POLE CONTACTOR PANEL

Square D DASKP250 Lug Kit Aluminum

Square D DASKP600 Lug Kit Aluminum

Square D DASKS400 Lug Kit Aluminum

SQUARE D DD160 OVERLOAD RELAY HEATER ELEMENT

SQUARE D DEFINITE PURPOSE CONTACTOR 3 POLE 120V COIL OPEN , 89KO-3

Square D DMFPAA The Subway Aluminum Face Plate

Square D DMFPDA Face Plate

Square D DSMLA THE SUBWAY

SQUARE D EDB14020 20 AMP 20A 1-POLE CIRCUIT BREAKER

Square D EDB14020 Circuit Breaker

Square D EDB14020 Circuit Breaker Lot of 4

Square D EDB34025 Circuit Breaker 25 AMP

SQUARE D ELECTRICAL INTERLOCK 9999 SX-13, 9999SX13

SQUARE D FA26070AC 70A 70 AMP 2-POLE 600V CIRCUIT BREAKER

Square D FA-6 Looper Lever Arm

SQUARE D FAL12100 100 AMP 100A 1-POLE CIRCUIT BREAKER

SQUARE D FAL24015 15A 15 AMP 2-POLE THERMAL MAGNETIC CIRCUIT BREAKER

SQUARE D FAL34015 CIRCUIT BREAKER SERIES 2

SQUARE D FAL34020 20 AMP 20A CIRCUIT BREAKER 3-POLE 480V

Square D FAL340351212 Breaker 35 Amp

SQUARE D FAL34050 50A 50 AMP 3-POLE CIRCUIT BREAKER

SQUARE D FAL360 MAG-GARD ADJUSTABLE INSTANTANEOUS TRIP CIRCUIT BREAKER 30 AMP 3P

SQUARE D FAL36060 60A 60 AMP 3-POLE CIRCUIT BREAKER

SQUARE D FH16020B 20A 20 AMP 1-POLE CIRCUIT BREAKER chipped

SQUARE D FUSE HOLDER BLOCK SF-3 POLE ADJUSTABLE

Square D FY14020A, FY14020B, FY14020C 1-Pole 20A 277V Circuit Breaker

Square D GTK03 Grounding Bar Kit