模块：DCS系统所有I/O模块都带有CPU，可以实现对采集及输出信号品质判断与标量变换，故障带电插拔，随机更换。而PLC模块只是简单电气转换单元，没有智能芯片，故障后相应单元全部瘫痪。
我们不得不从PLC和DCS的起源谈起：PLC的发展基于制造业的现场控制需求，DCS大发展基于化工行业的连续过程控制和监控。从控制需求分类看，控制系统可分成：顺序控制（PLC的基本功能）、过程控制（DCS）、位置控制（CNC）、传动控制（调速或同步），但从发展的角度来看，这几部分控制方式在渐渐融合。如果非要说出不同来，我认为有如下几点：
1、面向对象不同：PLC面向一般工控制领域，通用性强。DCS偏重过程控制，用于化工行业。
2、DCS强调连续过程控制的精度，可实现PID、前馈、串级、多级、模糊、自适应等复杂控制，一般PLC仅具有PID功能，控制精度不如DCS高。
3、DCS系统具有功能强大的SCAND软件包，具有配方功能，并针对不同行开发了专家软件（化工工艺参数配置和控制算法），比PLC应用方便。联系人：苏宝珠 电话：18050108292
福建宇创自动化设备有限公司》
Allen-Bradley（美国AB）系列产品》
Schneider（施耐德电气）系列产品》
General electric（通用电气）系列产品》
Westinghouse（美国西屋）系列产品》
SIEMENS（西门子系列产品）》
销售ABB Robots.FANUC Robots、YASKAWA Robots、KUKA Robots、MitsubishiRobots、OTC Robots、Panasonic Robots、MOTOMAN Robots
estinghouse（西屋）： OVATION系统、WDPF系统、MAX1000系统备件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。
Bosch Rexroth（博世力士乐）：Indramat，I/O模块,PLC控制器,驱动模块等。
Motorola（摩托罗拉）：MVME 162、MVME 167、MVME1772、MVME177等系列
我的优势：
福建宇创以“专业、诚信、创新、合作、共赢”的经营理念、不断开发新产品、为客户提供优质服务、以最大限度追求客户满意、并不断开拓新领域业务。
公司经销产品广泛应用于数控机械冶金、石油天然气、石油化工、化工、造纸印刷、纺织印染、机械、电子制造、汽车制造、烟草、塑胶机械、电力、水利、
本公司经营各种电工电气工控品牌产品。库存多，价格好,欢迎您联系我们
四:DCS系统备品备件 PLC模块备件”有着强大的优势只要您需要的PLC产品，我们就能帮您找到，公司极具价格优势
联系人：小苏
电话：0592-6083552
手机：18050108292
传真：0592-6535181
Q Q ：3070246084
E-mail:3070246084@qq.com
KEYENCE CORP CZ12 NSPP CZ12
KEYENCE CORP FU-12 NSFP FU12
Keyence Sensor EH-303A (EH303A) NIB!
(2) Keyence Separate Amplifier Pressure Sensor AP-44 Series
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KEYENCE CORP FS-V1 NSPP FSV1
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NEW Keyence Long Distance Sensor Amplifier ES-11AC Brand New in Box - BNIB
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USED KEYENCE RD-50RW WITH HOFFMAN ELECTRICAL JUNCTION BOX 16" X 12" X 7"
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Look to be brand new, manufactured June 09
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Keyence: Industrial Automation PLC Power Supply Part CA-U3
KEYENCE BAR CODE DISPLAY INTERFACE UNIT MODEL BL-V35E
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Keyence PZ-G41CB Diffuse Reflective Long Range Photoelectric Sensor NEW
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KEYENCE FU-65X PHOTOELECTRIC REFLECTIVE FIBEROPTIC NIB
KEYENCE BARCODE READER BL-700 SERIES BL-741 SENSOR
KEYENCE SL-P7N-T & SLP7N-R LIGHT CURTAIN CABLE SET NSFP
KEYENCE SL-PC5P-T & SLPC5P-R LIGHT CURTAIN CABLE SET NSFP
KEYENCE LZ-A150 LASER-TYPE PHOTOELECTRIC SWITCH
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Keyence PL-465 Head Monitor Sensor Amplifier PL465
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KEYENCE KV-R16X PROGRAMMABLE LOGIC ConTROLLER PLC TERMINAL INPUT MODULE
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Keyence PROXIMITY SWITCH EM-014P
KEYENCE DIGITAL ConTACT SENSOR GT-H10 NIB
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KEYENCE Photoelectric Sensor PS-55C PS55C new in box free ship
KEYENCE FS-T2P *NEW*
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KEYENCE CORP AP-31 NSFP AP31
KEYENCE CORP AP-C33 NSFP APC33
KEYENCE CORP CZ-40 USPP CZ40
KEYENCE CORP AP-31KP NSFP AP31KP
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KEYENCE CORP KV-8EYR USPP KV8EYR
KEYENCE CORP PJ-55A NSFP PJ55A
Keyence, FS-V12/ FU-40, fiber optic sensing assembly
KEYENCE CORP EH-614A NSFP EH614A
KEYENCE CORP LG-C1 NSFP LGC1
Keyence SL-M12H Corner Mirror for LC-C Series Safety Light Curtain, 278mm, New
OP-26540 KEYENCE ConNECTOR CABLE **NIB**
Keyence AP-33A Self-Contained Pressure Sensor AP-30 Series
KEYENCE CORP LZ-153 USPP LZ153
KEYENCE CORP FS-V22R NSPP FSV22R
KEYENCE FS-V11 / PS-T2P new (A1)
KEYENCE FS-T1P new (B8)
Keyence LB-041 / PT-A170 (B8)
KEYENCE AP-31K TWO COLOR DIGITAL PRESSURE SENSOR
Keyence LV-12SBP New (A1)
NEW Keyence Fiber Optic Sensors FU-10 FU10 - Set of 2 - BNIB
Keyence CPU PLC unit KV-300 ___ KV300
keyence LV-51M SENSOR AMPLIFIER
keyence GT-72A AMPLIFIER
NEW Keyence Proximity Sensor EZ-18T EZ18T BNIB
N-R2 KEYENCE CABLE EXTENSION
Used KEYENCE PLC KZ-24R Free Ship
Keyence AP-C30K subminature Digital Pressure Sensor (Used)
Keyence KV-10AT KV10AT Free Ship
PZ-101P KEYENCE PZ SERIES PHOTOELECTRIC SENSOR
Keyence sensor LV-H62 (J2)
KEYENCE PROXIMITY SWITCH PN: EH-110 NEW!!
KEYENCE FS-V33 new (A1)
KEYENCE FS-V31 new (A1)
Keyence Controller UD-300 (free shipping)
Keyence FS-T2P Fiber Optic Sensor
NEW KEYENCE DIGITAL LASER SENSOR LV-21AP LV21AP
KEYENCE PZ-M51 NEW SELF ConTAINED PHOTOELECTRIC SENSOR PZM51
KEYENCE LASER SENSOR BL781 BL-781
keyence AP-32A Digital Pressure Sensor (Used)
KEYENCE EG-547 Positioning Control Free Ship
Keyence corporation SH-114 Sensor new
Keyence corporation EH-290 new
KEYENCE SL-U2 SAFTEY LIGHT CURTAIN POWER SUPPLY UNIT
AP-33 KEYENCE NEW TWO COLOR DIGITAL DISPLAY PRESSURE SENSOR
keyence bl-p1e handheld programmer
KEYENCE BL-U1 Power supply for industrial machine use
KEYENCE LV-S41 SERIES 28110162 SUPER SMALL STRAIGHT BEAM REFLECTIVE RETROREFLECT
One KEYENCE EM-038 PROXIMITY SWITCH AMP-IN-CABLE NIB
KEYENCE BAR CODE READER N-400 N400
Keyence FS-V22RP Duel Digital Fiber Sensor *New*
Keyence Photoelectric Fiber Cable CZ-40 (7725)
New Keyence CV-022U High Speed Vision Control Unit
LV-H47 KEYENCE LASER SENSOR
NEW IN BOX KEYENCE PZ-V33P SELF-ConTAINED PHOTOELECTRIC SENSOR PZ-V/M SERIES
NEW IN BOX KEYENCE 3 METER SENSOR EH-114 FAST SHIP
Keyence FS-V1P Photoelectric Amplifier New in Box!
PZ-42L(SO1352) Keyence New In Box Photo Switch PZ42LSO1352
PZ-42L Keyence New In Box Photo Switch PZ42L
Keyence TL-30 2D Industrial Automation Barcode Reader
GT2-CHL5M Keyence New In Box Photo Switch GT2CHL5M
Keyence Proximity Switch Sensor Head EH-440 NOS
Keyence DC 5V, Class 2 Laser Scanner BL-701
SL-U2 Keyence New In Box Safety Light Curtain Power Supply SLU2
KEYENCE MICRO PLC MODULE KV-24DT
KEYENCE CORP FS-17 NSFP FS17
KEYENCE CORP FS-T20 NSFP FST20
KEYENCE CORP FU-34 USPP FU34
KEYENCE CORP KV-U4 USPP KVU4
KEYENCE BL-V35E Bar Code Display Interface Panel
Keyence Proximity switch ES-32DC (ES32DC) NIB!
KEYENCE KL-2DA KL2DA Free Ship
Keyence AT-104 AT104 Linear Sensor, +/- 2mm 1um, Japan
KEYENCE Proximity Sensor SH-108 ( SH108 ) new in box free ship
KEYENCE NE-V08 ethernet switch NEW in box w manual
Keyence PS-05R & PS-05T NEW
Keyence PLC KV-10AR (free shipping)
Keyence KL-16BX input unit
Keyence KL-16BT output unit
Keyence SL-U2 Light Curtain Power Supply 1.8Amp 24VDC *SEALED*
KEYENCE CORP FU-15 NSFP FU15
KEYENCE AP-33K DIGITAL PRESSURE SENSOR 0-145PSI 12-24V
KEYENCE AP-33K PRESSURE SENSOR 0-145PSI 12-24VDC NPN
KEYENCE AP-33K SELF-ConTAINED PRESSURE SENSOR 0-145PSI 12-24VDC NPN OUTPUT
Keyence KL-2DA KL2DA PLC New Open Box
KEYENCE CORP FS-V32CP NSFP FSV32CP
KEYENCE CORP KV-U3 NSPP KVU3
SJ-M200 Keyence Static Eliminator Controller
Keyence KV-C32TA Output Module **LNC**
KEYENCE PJ-VZ1R *USED*
KEYENCE FU-12 (LOT OF 4)
Keyence sensors FS-V11 (1) & FS-V12 (8)
KEYENCE Fiber Optic Sensor FU-95Z ( FU95Z ) new in box free ship
Keyence Corp. KV-D20 6162932 Operator Panel
Keyence Interface Display KV-D20
Keyence KV-24DT PLC
KEYENCE PZ-42L (2.5M) *NEW*
KEYENCE GT2-75P GT275P
KEYENCE CORP FU-65-1M NSFP FU651M
Keyence PS-05R & PS-05T NEW
Keyence PLC KV-10AR (free shipping)
Keyence KL-16BX input unit
Keyence KL-16BT output unit
Keyence SL-U2 Light Curtain Power Supply 1.8Amp 24VDC *SEALED*
KEYENCE CORP FU-15 NSFP FU15
KEYENCE AP-33K DIGITAL PRESSURE SENSOR 0-145PSI 12-24V
KEYENCE AP-33K PRESSURE SENSOR 0-145PSI 12-24VDC NPN
KEYENCE AP-33K SELF-ConTAINED PRESSURE SENSOR 0-145PSI 12-24VDC NPN OUTPUT
Keyence KL-2DA KL2DA PLC New Open Box
KEYENCE CORP FS-V32CP NSFP FSV32CP
KEYENCE CORP KV-U3 NSPP KVU3
SJ-M200 Keyence Static Eliminator Controller
Keyence KV-C32TA Output Module **LNC**
KEYENCE PJ-VZ1R *USED*
KEYENCE FU-12 (LOT OF 4)
Keyence sensors FS-V11 (1) & FS-V12 (8)
KEYENCE Fiber Optic Sensor FU-95Z ( FU95Z ) new in box free ship
Keyence Corp. KV-D20 6162932 Operator Panel
Keyence EH-114 *NIB* Free Priority Shipping!!
Keyence Interface Display KV-D20
Keyence KV-24DT PLC
KEYENCE PZ-42L (2.5M) *NEW*
KEYENCE GT2-75P GT275P
KEYENCE CORP FU-65-1M NSFP FU651M
KEYENCE CORP KL-16BT USPP KL16BT
KEYENCE CORP KZ8ET USPP KZ8ET