相同i/o点数的系统，用plc比用dcs，其成本要低一些（大约能省40%左右）。plc没有专用操作站，它用的软件和硬件都是通用的，所以维护成本比dcs要低很多。如果被控对象主要是设备连锁、回路相对很少，采用plc较为合适。如果主要是模拟量控制、并且函数运算很多，**采用dcs。dcs在控制器、i/o板、通讯网络等的冗余方面，一些**运算、行业的特殊要求方面都要比plc好的多。plc由于采用通用监控软件，在设计企业的管理信息系统方面，要容易一些。

福州卓凯电子科技有限公司
24小时销售技术服务热线 ：17705012279;0591-22983857
传真（Fax）：0591-22989937
商务QQ ：879520885
联系人： 林女士（ 销售经理 ）
地址：福州市闽侯西江滨大道77号正荣润园一号楼1205室
产品价格以电话或者QQ询价为准，发布价格不做参考
欢迎来电咨询，我们将会给您优质的服务！
产品详细信息，欢迎来电查询！
只要是您想要的，我都能帮您找到，价格从优！
您急需的产品，请联系我们！
您询不到的产品，请联系我们！
您买不到的产品，请联系我们！

Weiss Instruments Pressure Gauge, 3.9" Diameter, 0-100PSI, 1/4"NPT
Weiss Instruments Pressure Gauge, 3.9" Diameter, 0-100PSI, 1/4"NPT
Welch 2580B-01 Dry Vane Vacuum Pump 115VAC 60Hz 26 In.Hg 3.5CFM *Cracked Feet*
Welch 2580B-01 Dry Vane Vacuum Pump 115VAC 60Hz 28 In.Hg 3.5CFM 1/3HP 3/8" Ports
Welch 2580B-01 Dry Vane Vacuum Pump 115VAC 60Hz 7 In.Hg 3.5CFM *Needs Rebuild*
Wema Berstorff HK2100120x250 Extruder Heater w/ Fan 2KW 3PH 480VAC 4.5"ID
Werma 843 Series Stacklight LED Green/Amber/Red w/Werma 843 118 55 Sounder
West 2071 Temperature Controller M2071-L02-T1723-H64-C00-X00-4E
Western Servo Design 10119-100 RVB Power Board
Westinghouse 1F2190 Transformer 230/460P 115/230S 0.5kVA Type MTA
WESTINGHOUSE 2050A15G06 DEFINITE PURPOSE AC CONTACTOR
Westinghouse 308P614 AC Motor, 1/4HP, 1725HP, 115V, 3.*mp, 60Hz, 1 Phase
Westinghouse Digital Input Model: NL-515
Westinghouse Digital Output Model: Nl-530
Westinghouse HMCP015E0C Motor Circuit Protector 600VAC 250VDC 1* 3Pole
Westinghouse HMCP015E0C Motor Circuit Protector 600VAC 250VDC 1* 3Pole
Westinghouse Input Model: NL-705
Westinghouse Output Module Regester NL-753
Westinghouse P-B 3497 Motor 115VAC 1/3HP 1725RPM 0.5"Diameter
Westinghouse PB1HBOT1 HD Pushbutton120V No Lens
Westinghouse PB2JAL2A 2 Position Rotary Handle
Westinghouse Processor Module Model: PC502
WESTINGHOUSE TECO A510 VARIABLE FREQUENCY DRIVE A510-4050-C3-U
Westinghouse Type W Motor Control Center Bucket Door & Mounting Hardware ()
Westinghouse Type W Size 1 Fusible MCC Bucket Reconditioned- 1 Year Warranty
WF20X/10 Microscope Eyepiece 20x Widefield
Whedco IMC-316E-X-D-AD Servo Motor Controller, Voltage: 90-250VAC, *For Parts*
Wheel Master WIS-40 Light-Duty Leveling Caster, 110 lbs Rating, 3/8-16
White 270060F3110AAAAA Hydraulic Motor 1"-Diameter
White LED with BNC Connection Cable, Tested at 12VDC, Housing Length: 2-5/8"
White Ring Light 1-3/4" Inner, 3-3/8" Outer w/Adjustable Output Power Supply
White Ring Light 1-3/4" Inner, 3-3/8" Outer w/Adjustable Output Power Supply
Whitey 1/4 turn Double Acting Actuator 131DA
Whitey 153DA Spring Return Actuator With 2x SS63XTF8-53DDM 3-Way Ball Valves
Whitey B-1KF4-W1 Valve 1/4"NPT
Whitey DOT-3E1800 Cylinder AA0323 304L-HDF4-50CC 02EK097 1/4" NPT
Whitey SS63XTF8-53DDM 3-Way Ball Valve, Ports: 1/2" NPT, Pressure: 1000psi
Whitman Controls L55-02-C1-02-NO Liquid Level Switch, Side Mount, 1/8"NPT, 50VA,
Whitman Controls P88G-4-C1TB Economical Pressure Switch 1A, 125VAC, 30VDC
Wiegmann 14" x 12" x 6" Type 12 & 13 Enclosure, with 15 Cord Grips & Switch Box
Wiegmann BN4060604CHSS Enclosure, Dimensions: 6" x 6" x 4.5", Stainless Steel
Wiegmann N1C121406WW Enclosure 12"x14"x6"
Wiegmann N1C202408WW Enclosure 20"x24"x8"
Wiegmann N1C202408WW Enclosure 20"x24"x8"
Wiegmann PB1 Pushbutton Enclosure, With Pushbutton, 3.8"x3.6"x3"
Wiegmann SC080804NK Enclosure 8" x 8" x 4"
Wieland 87.200.2202.3 D-SUB Connector to Screw Terminal, 25-Pin Female w/Cable
Wika 213.53 2.5" 100psi Gauge, 1/4 NPT Bottom Connection, 2.5" Diameter 9767061
Wika 213.53 2.5" 100psi Gauge, 1/4 NPT Bottom Connection, 2.5" Diameter 9767061
Wika 213.53 2.5" 100psi Pressure Gauge, 1/4 NPT Back Liquid Filled, 2.5" 9767215
Wika 8642850 Vacuum Transmitter, Vacuum: -30inHg, Output: 4-20mA, 1/2" NPT
Wika Bourdon Tube Pressure Gauge 100mm Diameter 0-600bar G1/2B Thread
Wika Pressure Gauge, 0-100PSI, 1/4"NPT, 2.68" Dia. Dial
Wika Pressure Gauge, 0-60PSI, 1/4"NPT, 2.44" Dia. Dial
WIKA Transcat S-10 8643628 891.13.500 Industrial Pressure Transmitter DC10..30V
WIKA Vacuum Gauge 0 to 30inHg 316 SS Tube and Connection 1/2" NPT 6" Diameter
Wild Heerbugg M* Stereo Microscope w/ MDG13 Illuminated Base *Needs Bulb*
Wilden 00-9733 Pump, Connections: 1/4" NPT, Max Flow Rate: 5GPM (18.9LPM)
Wilden 01-10436 Pump, Ports: 1/2" NPT, Air Supply: 1/4" NPT, Pressure: 125psi
Wilden 01-10487 Pump, Ports: 1/2" NPT, Air Supply: 1/4" NPT, Pressure: 125psi
Wilden M1/GGGQ/TF/TF/GTV Air Operated Double Diaphragm Pump Carbon Acetal
Wilden SD-2 Equalizer Automatic Surge Dampener 2" Inlet Aluminum Air Chamber
Wilkerson 6B216 1/4" Regulator 2-125PSI w/Gauge 0-60PSI
Wilkerson B08-01-QKG0 Regulator
Wilkerson B08-02-FK00 Penumatic Regulator & Filter Combo w/ Gauge 0-125PSI Out
Wilkerson B18-02-FKG0 Filter/Regulator With Pressure Gauge (0-160psi), 1/4" NPT
Wilkerson DM4130 Thermocouple Isolated Transmitter, 115VAC IN, 0/10VDC OUT
Wilkerson E18-C4-EC00 Pneumatic Slow Start QD Valve, 24VDC, 1/2"NPT IN, 3/8" OUT



资讯来源：福州卓凯电子科技有限公司