12-8886-112

12-8886-112

12-8886-112

12-8886-112

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 H363RB SERIES F05 100A FUSIBLE DISCONNECT SWITCH

SQUARE D H36SERIES D2 30A 30 AMP FUSIBLE SAFETY DISCONNECT SWITCH

SQUARE D HEAVY DUTY LIMIT SWITCH , 9007 B62A

SQUARE D HLW1BL, 1- BOX OF (3) 1.5 IN BLANK FILLER SER. 4

SQUARE D HU361AWK SERIES F05 30A 30 AMP NON-FUSIBLE SAFETY DISCONNECT SWITCH

SQUARE D HU362DS 60 AMP NON-FUSIBLE DISCONNECT SWITCH STAINLESS STEEL SERIES F06

SQUARE D HU3630 AMP 30A SERIES ENON-FUSIBLE SAFETY DISCONNECT SWITCH

Square D KA26125 KA26125AC 125 Amp 2 Pole Breaker

SQUARE D KAL26200WB804200A 200 AMP CIRCUIT BREAKER

SQUARE D KAL36100 100A 100 AMP CIRCUIT BREAKER 3-POLE 600VAC 250VDC

SQUARE D KAL36175102175A 175 AMP CIRCUIT BREAKER 3-POLE TYPE KAL

Square D KM35R31 Red Pilot Light

Square D KN-700WP Blank White Legend Plate

Square D LA-21 Contact Block

SQUARE D LA36400 400A 400 AMP CIRCUIT BREAKER 3-POLE 600VAC

Square D Lever Arm 9007 MA-184112 FREE

SQUARE D LIMIT SWITCH , 9007 B53-GD

SQUARE D LIMIT SWITCH , 9007 B61P

SQUARE D LIMIT SWITCH with OPERATOR HEAD CLASS 9007 SERIES A , AEQ2699

SQUARE D LIMIT SWITCH with ROLLER 9007 B53B2

Square D LJB4TF Square-Duct Oil Tight Wireway 7801524

SQUARE D MA36700 700A 700 AMP CIRCUIT BREAKER

SQUARE D MAGNET COIL , 1707-S1-T24A

SQUARE D MG24120 Schneider Electric 1P Protector 25A 25 AMP 277VAC

SQUARE D MG27160 MERLIN GERIN NC100H 50 AMP 50A 240V 1-POLE CIRCUIT BREAKER

Square D MH26 NC26F Panelboard Box & Cover NO INTERIOR FOR NF / NQ

SQUARE D MH900A 900A 900 AMP 3-POLE CIRCUIT BREAKER TRIP & AUXILIARY

SQUARE D MHF CIRCUIT BREAKER HARDWARE

SQUARE D MHF36000M 1000A 3-POLE CIRCUIT BREAKER AMP

SQUARE D MICRO CONTROLLER 8003 CP30 SERIES AREVISION 1.00 100-240VAC

SQUARE D MULTI 9 C60 MINIATURE SUPPLEMENTARY PROTECTOR 2A 1P

SQUARE D NQ30L1C 100 AMP MAIN LUG PANELBOARD 30 CIRCUIT 240 VAC 48 VDC 1Ø

SQUARE D NQ30L2C 225 AMP MAIN LUG PANELBOARD 30 CIRCUIT 240 VAC 48 VDC 1Ø

Square D NSB 9001KS43B Selector Switch

SQUARE D OCCUPANCY MOTION SENSOR WALL SWITCH MOTION INFRARED , SLSPWD1277UI

SQUARE D PK23GTA Grounding bar KIT-for QO series--replaces 40559-372-50/51

SQUARE D PNEUMATIC TIMER RELAY 9050-R02E incomplete

Square D PSQ321A Limit Switch

SQUARE D Q2L Q2L3125 125 AMP 125A 240VAC 3-POLE CIRCUIT BREAKER

SQUARE D Q2M3150MB CIRCUIT BREAKER 150 AMP 150A 240VAC 3-POLE

SQUARE D Q2M32255700 225A 225 AMP 3-POLE CIRCUIT BREAKER

Square D QMB-300-EK1 Interlock 2QMB300EK1

SQUARE D QMJ362T SER E60 AMP 60A FUSIBLE PANEL BOARD BRANCH SWITCH w HARDWARE

Square D QO115 15 Amp Pole 120/240V Circuit Breaker Type QO

Square D QO120 20 Amp Pole Circuit Breaker 120/240 VAC QO CLIP ON

Square D QO120 20-Amp Pole 120/240V 50/60Hz Circuit Breaker CLIP ON

SQUARE D QO120 Pole 20 Amp 120/240V CIRCUIT BREAKERS *SHIPS FREE*

SQUARE D QO140 40 Amp Pole PLUG IN CIRCUIT BREAKER CLIP ON

Square D QOB115EPD Bolt-On Circuit Breaker, 15A 120VAC 60Hz 1-Pole, GFI

Square D qob120 20 Amp Circuit Breaker 120/240 VAC Pole BOLT ON

Square D QOB120HM Circuit Breaker 20A 1P 120/240VAC 10kA Bolt-On

Square D QOB22010220 Amp 2 Pole Bolt On Circuit Breaker

Square d QOB32010220A 3 POLE

Square d QOB33010230 Amp Shunt Trip CIRCUIT BREAKER

SQUARE D QOB335 BOLT-IN 3-P 30A 240V CIRCUIT BREAKER

SQUARE D QOGFI1PAF Handle Padlock Attachment

SQUARE D QOGFI2PAF Handle Padlock Attachment 2-POLE

SQUARE D QOM60L MINIATURE 60 AMP 60A CIRCUIT BREAKER 120/240V TYPE QOMI

SQUARE D QOU130 30A 30 AMP 1-POLE CIRCUIT BREAKER - QUANTITY

SQUARE D QOU150 50A 50 AMP 1-POLE CIRCUIT BREAKER

SQUARE D QOU-215 15A 15 AMP 2-POLE CIRCUIT BREAKER QOU215

SQUARE D QOU3151200 15 AMP 15A CIRCUIT BREAKER 3-POLE

SQUARE D QOU3501200 50 AMP 50A CIRCUIT BREAKER 3-POLE

SQUARE D QOU3601200 60 AMP 60A CIRCUIT BREAKER 3-POLE

SQUARE D QOUR120 20A 20 AMP 1-POLE CIRCUIT BREAKER

SQUARE D QOUR130 30A 30 AMP 1-POLE CIRCUIT BREAKER

SQUARE D QQ13100 100 AMP 100A 3-POLE CIRCUIT BREAKER

SQUARE D RELAY 850CO-16 with SQUARE D ENCLOSURE 999UE-1

SQUARE D RELAY 850RS14V20 with 850NR45 SOCKET 7AMP 300V

SQUARE D RELAY with 4323-SCOIL

SQUARE D S33998 CIRCUIT BREAKER PHASE BARRIERS POWERPACT

SQUARE D SELECTOR SWITCH w (3) 900KASER K CONTACTS - NO KEY

SQUARE D SELECTOR SWITCH w 900KACONTACTS - WITH KEYS

SQUARE D SIZE 25MBG2 MANUAL MOTOR STARTER ENCLOSURE

Square D SNO3C Insulated Groundable Neutral Kit SN03C

SQUARE D SOLID STATE TIMING RELAY ON DELAY 0.6-60 SEC with BASE , 850JCK-13

SQUARE D SWITCH AC PILOT DUTY CLASS 9007 AB-21

SQUARE D SY/MAX Processor Model 500 SCP-521 Class 8020 Series D/G Rev K

Square D SYMAX Input Module 8030 Type RIM-101

SQUARE D TIMING CONTACTOR 9050 B0-1D

SQUARE D TIMING RELAY 5-180 sec. 850XTD2 with CONTROL RELAY , 850X040

SQUARE D TVS120LC20 SURGELOGIC TRANSIENT VOLTAGE SURGE SUPPRESSOR FREE

Square D Type ML-2 994370 70A 3p 600VAC Circuit Breaker Used

Square D Type QOB 20 Amp 1 Pole Circuit Breaker Bolt In

SQUARE HEAD Machine Bolt Bronze Silicon 3/8"-16 x 2-1/4"

SQUARE-D 2S1F 2.0 KVA TRANSFORMER PRI: 240/480V SEC: 120/240V 1-PHASE

SQUARE-D 2S1F 2KVA DRY TYPE LOW VOLTAGE TRANSFORMER HIGH: 240x480V LOW: 120x240V

SSAC ERDM42SOLID STATE TIMER 0.1-SECOND TIME DELAY 120V