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工业界对于分布式控制系统（DCS）与可编程逻辑控制器（PLC）两者孰优孰劣的争论已经持续了至少40年。然而，随着技术的发展，争论并未停止。由于两者功能特性越来越接近，价格差异也在缩小，曾经一度很清晰的选择，现在似乎变得越来越模糊。要想理解这两者之间的争论，就一定要明确这两种平台之间的根本性差异。
要想理解这两者之间的争论，就一定要明确这两种平台之间的根本性差异。例如，DCS体系结构源自一种完整的系统方法，其焦点在于基于网络实现分布式控制，协助作业人员监视并操控工厂中的任何一个区域。通过高性能的确定性网络实现一致、同步并且完整的过程数据正是DCS体系结构的核心。
另一方面，PLC体系结构聚焦于灵活快速的本地控制，PLC技术最近的发展为其增加了过程控制能力。当PLC和HMI软件集成在一起时，其最终形态看起来与DCS十分类似，但是这仍旧是一种自建（DIY）的实现方法，意味着工程师必须亲力亲为实现系统的每一个环节。对于控制来说这种方法更加灵活，但是DIY通常意味着在组网和性能上更大的技术风险，其导致的成本增加会在后期慢慢体现。
以前，相对于PLC系统来说，DCS通常更加昂贵，而且与今天面临的状况不同，当年很多工厂对生产速度、产量、废物排放、安全性和遵循法规上的需求并不高。正是因为这样，基于PLC的系统才获得了发展，因为它们能够提供更低的固定资产投资，同时提供的功能也足够用。但是随着时代的变迁，在全球市场范围DCS系统的价格不断降低，制造企业对其需求也随之上升。因此，在投建新自动化项目时，很多控制系统工程师、维护经理和工厂经理开始重新审视DCS和PLC控制系统两者的优劣。
Moeller 0188-0135 Cylinder 0635-H58H - No Box
MOELLER 0117RG39 **NNB**
MOELLER 0.4A, 660V MANUAL MOTOR STARTER PKZM 1-0.4-NA
Moeller 0 to 300 Psi Gage 76526 (U1)
MOELLER ~ PKZM 1–16~16A~660 V~ AC 3~VDE 0660~IEC 157 ~ MOTOR STARTER SWITCH
Moeller / Kloecker Moeller EMR4-F500-2 Phasenfolgerelais
Moeller / Kl?ckner Moeller ZB4-508-KB1 Verbindungskabel
Moeller / Kl?ckner Moeller ZB4-501-IF1 SUConET K-Interface - -
Moeller / Eaton Aufbaugeh?use Geh?use - M22-I6 - 6 Fach - 216540 - NEU & OVP
MOELLER (FAZ-D16/3) D16 16 AMP 15 KA 278896 TRIPLE POLE MCB CIRCUIT BREAKER
MOELLER (FAZ-D10/3) D10 10 AMP 15 KA 278892 TRIPLE POLE MCB CIRCUIT BREAKER
MOELLER (FAZ-C10/3) C10 10 AMP 15 KA 278869 TRIPLE POLE MCB CIRCUIT BREAKER
Moeller (F&G) Fehlerstromschutzschalter F7-63/4/01-A
Moeller (1 Stück) - Leistungsschütz 7,5kW/400V,DC DILM17-10(RDC24) #GR-461-4
Moeller ( EATON ) EMT6 DB 2S Motorschutzrelais Temperaturüberw. AC 230 V in OVP
Moeller ( EATON ) EMT6 DB 2S Motorschutzrelais Temperaturüberw. AC 230 V in OVP
Moeller # PKZMO-1-T Manual Starter Motor Protector
MOELLER - ZB32-2,4 - RELAY, OVERLOAD, FOR DILM17-DILM32
Moeller - X Pole PLSM-D63/3-MW - 63a Type D Triple Pole MCB In Box
Moeller - X Pole PLSM-D6/3-DW - 6a Type D Triple Pole MCB In Box
Moeller - X Pole PLSM-D50/3-MW - 50a Type D Triple Pole MCB In Box
Moeller - X Pole PLSM-D40/3-DW - 40a Type D Triple Pole MCB In Box
Moeller - X Pole PLSM-D25/3-DW - 25a Type D Triple Pole MCB In Box
Moeller - X Pole PLSM-D20/3-MW - 20a Type D Triple Pole MCB In Box
Moeller - X Pole PLSM-D20/3-DW - 20a Type D Triple Pole MCB In Box
Moeller - X Pole PLSM-D10/3-DW - 10a Type D Triple Pole MCB In Box
Moeller - X Pole PLSM-C6/3-DW - 6a Type C Triple Pole MCB In Box
Moeller - X Pole PLSM-C50/3-DW - 50a Type C Triple Pole MCB In Box
Moeller - X Pole PLSM-C25/3-DW - 25a Type C Triple Pole MCB In Box
Moeller - X Pole PLSM-C10/3-DW - 10a Type C Triple Pole MCB In Box
Moeller - X Pole PKS6-40/1N/B/003 - 40a Type B RCBO
Moeller - X Pole PKS6-16/1N/C/003 - 16a Type C RCBO
Moeller - X Pole PKS6-10/1N/B/003 - 10a Type B RCBO
Moeller - X Pole PFIM-100/2/003 - 100a 30mA Type AC Double Pole RCD
MOELLER - TO-2-1/I1/SVB - 3 POLE ENCLOSED ISOLATOR 20A 4KW
MOELLER - T0-2-1/I1H/SVB - ISOLATOR, PLASTIC, ENCL, 20A, 3POLE
MOELLER - T0-2-1/E - MAINS SWITCH, T0-2-1/E
MOELLER - T0-1-102/I1/SVB - SWITCH, PLASTIC, ENCL, 20A, 2POLE
Moeller - Schütz- Hilfschütz
MOELLER - P1-25/I/SVB - 3 POLE ENCLOSED ISOLATOR 5.5KW
MOELLER - Motorschutzschalter - PKZM0-0,63
MOELLER - M22-WRK3+M22-A - ACTUATOR, THUMB, 3WAY
MOELLER - M22-WK+M22-A - ACTUATOR, THUMB, 2WAY
MOELLER - M22-KC10 - ConTACT BLOCK - (Lot of 3 Each - )
MOELLER - M22-KC01 - ConTACT ELEMENT (Lot of 3 Each)
MOELLER - M22-I6 - SURFACE MOUNTING IP66 PUSH BUTTON ENCLOSURE, 6 GANG
MOELLER - M22-I3 - SURFACE MOUNTING IP66 PUSH BUTTON ENCLOSURE, 3 GANG
MOELLER - M22-I3 - SURFACE MOUNTING IP66 PUSH BUTTON ENCLOSURE, 3 GANG
MOELLER - M22-I2 - SURFACE MOUNTING IP66 PUSH BUTTON ENCLOSURE, 2 GANG
MOELLER - Leistungsschalter Motorschutz - NZM7-100N-M8 neu OVP
Moeller - LED- SL-LED grün
Moeller - LED- SL-LED gelb
MOELLER - Haupt-/Not-Aus-Schalter 6P 32A IP65 - T3-4-15682/EA/SVB-SW
MOELLER - Haupt-/Not-Aus-Schalter 6P 32A IP65 - T3-4-15682/EA/SVB-SW
MOELLER - Grundger?t 3p o.Ausl?serblock - PKZ2
MOELLER - FAZ-C16/3 - CIRCUIT BREAKER, 16A, 3POLE
MOELLER - FAZ-C10/1 - CIRCUIT BREAKER, 10A, 1POLE
MOELLER - FAZ-C1/1 - CIRCUIT BREAKER, 1A, 1POLE
Moeller - Eaton Ein-Aus-Schalter P3-63/IVS
Moeller - Eaton Ein-Aus-Schalter P3-63/IVS
MOELLER - EATON DILMC65 ( RDC24 ) LEISTUNGSSCHüTZ SCHUTZE 24-27 V DC 30KW/400V
MOELLER - DILR31 - ConTACTOR - 120V
MOELLER - DILEM-10-G(24VDC) - CONTACTOR, MINI, 4KW
Moeller - DIL2M-G, NDIL2M, FDBDIL Motor Contactor Starter
Moeller - DIL2M Motor Contactor 110V COIL
Moeller - DIL00M-10
MOELLER - Anschlussblock Klemmblock 160A - K95/5
MOELLER - 22DILEM - ConTACT BLOCK, 2NO/2NC
M8-8611ET ROLLER PLUNGER SWITCH replac MOELLER ATO-11-S-I/RS OMRON D4N-4132
M8-8611ET ROLLER PLUNGER SWITCH replac MOELLER ATO-11-S-I/RS OMRON D4N-4132
M8-8611E ROLLER PLUNGER SWITCH replac MOELLER ATO-11-S-I/RS OMRON D4N-4132 AZD1
M8-8611E ROLLER PLUNGER SWITCH replac MOELLER ATO-11-S-I/RS OMRON D4N-4132 AZD1
M8-8608ET ADJUSTABLE ROLLER LEVER SWITCH REPLACES MOELLER ATO-11-S-I/V AZD1008
M8-8608E LIMIT SWITCH 6A REPLACES MOELLER ATO-11-S-I/V
M8-8607ET ADJUSTABLE ROD LEVER SWITCH REPLACES MOELLER ATO-11-S-I/H 6A AZD1007
M8-8607E ADJUSTABLE ROD LEVER LIMIT SWITCH REPLACES MOELLER ATO-11-S-I/H AZD1057
M8-8606ET FLEXIBLE PLASTIC ROD WOBBLE LEVER SWITCH REPLACES MOELLER ATO-11-S-I/F
M8-8606E FLEXIBLE PLASTIC ROD WOBBLE LEVER SWITCH REPLACES MOELLER ATO-11-S-I/F
M8-8604ET ROLLER SHORT LEVER ARM SWITCH REPLACES MOELLER ATO-11-S-I/R D4N-4125
M8-8604E ROLLER SHORT LEVER ARM SWITCH REPLACES MOELLER ATO-11-S-I/R AZD1004
M8-8603ET ONE-WAY ROLLER ARM LEVER VERTICAL SWITCH replac MOELLER ATO-11-S-I/WR
M8-8602ET ONE-WAY ROLLER ARM HINGE LEVER SWITCH replac MOELLER ATO-11-S-I/AR
M8-8601ET PUSH DOME PLUNGER LIMIT SWITCH 6A REPLACES AZD1001 MOELLER ATO-11-S-I
M8-8601ET PUSH DOME PLUNGER LIMIT SWITCH 6A REPLACES AZD1001 MOELLER ATO-11-S-I
M8-8601E PUSH DOME PLUNGER LIMIT SWITCH 6A REPLACES D4N-4131 MOELLER ATO-11-S-I
M8-8601E PUSH DOME PLUNGER LIMIT SWITCH 6A REPLACES D4N-4131 MOELLER ATO-11-S-I
M22-WRS3 +M22-A Moeller - M22-Wrs3 +M22-A - Actuator , Keyswich , 3Way
M22-WRS+M22-A Moeller - Actuator , Keyswich , 2Way
M22-WRLK-R+M22-A - EATON MOELLER - ACTUATOR, RED, 2WAY
M22PVLM22AM22XAK Moeller Switch , Pushbutton , Estop , 90mm Lbl
M22-PV+M22-A+M22-XAK Moeller - Switch , Pushbutton , Estop , 90mm Lbl
M22-PV/KC11/IY Moeller Enclosure , Estop Pushbutton
M22-DRP-R+M22-A Moeller - M22-Drp-R+M22-A - Switch , Pushbutton , Mushroom , Red
M22-DRL-Y+M22-A Moeller - Switch , Pushbutton , Illum , Yellow
M22-DRL-B+M22-A - EATON MOELLER - SWITCH, PUSHBUTTON, ILLUM, PROG, BLUE
LV6 Kl?ckner Moeller SPS EBE231 B EBE 231
Lot of 9 Moeller X Pole PLSM-C16/1-AS 1P Circuit Breakers
LOT OF 8 MOELLER EK10 AUXILIARY ConTACT 600VAC * *
LOT OF 7: Klockner Moeller DIL R 40 Contactors + Auxiliaries 22DIL,04DIL,40DIL
LOT OF 7 MOELLER FAZ-2-C6 CIRCUIT BREAKER * OUT OF A BOX*
LOT OF 6 MOELLER 0117-RG87 PUNCHES RND 20 DIA X 25, P=9.58 B=12 P/S
LOT OF 6 KLOCKNER MOELLER BREAKER FAZNC4-2 TWO POLE 277/480VAC
Lot of 6 Moeller Manuel Starters PKZM 1-1,6
LOT OF 6 MOELLER 04DIL MINIATURE ConTACTOR * *
LOT OF 5 MOELLER M22-KC01 ConTACT BLOCK * *
LOT OF 5 KLOCKNER-MOELLER RWK3R SELECTOR SWITCH * IN A BOX*
LOT OF 5 KLOCKNER-MOELLER AD-E ADAPTER EXTENSION PIECE * IN A FACTORY BAG*
LOT OF 5 KLOCKNER-MOELLER 40DIL SMALL ConTACTOR * *
LOT OF 5 KLOCKER MOELLER EFC * OUT OF BOX*
LOT OF 4: Klockner Moeller DIL R 40 + 22 DIL M + 04 DIL Contactor, Relay
LOT OF 4 MOELLER FAZN B6 CIRCUIT BREAKER * OUT OF A BOX*
LOT OF 4 MOELLER 20DIL AUXILIARY ConTACT BLOCK * IN A BAG*
LOT OF 4 MOELLER 11DILM AUXILIARY ConTACTS * *
LOT OF 4 KLOCKNER-MOELLER RWK3R SELECTOR SWITCH * IN A BOX*
LOT OF 4 KLOCKNER-MOELLER EZ1 THERMAL OVERLOAD RELAY ACCESSORIES * *
LOT OF 4 KLOCKNER MOELLER NHi11-PKZM1 * IN BOX*
LOT OF 4 KLOCKNER MOELLER FAZN B10 * *
Lot of 4 Klockner Moeller DIL R 40-G Contactor Relays w/ VG B DIL 24 Suppressor
Lot Of 3 Klockner Moeller Pkzm3-U-Na Manual Motor Starter
Lot of 3 Moeller Track Mounted Breakers (See Add. Info for Specs)
LOT OF 3 MOELLER FAZ-C10 CIRCUIT BREAKER * OUT OF A BOX*
LOT OF 3 MOELLER FAZ-3-C20 CIRCUIT BREAKER * OUT OF A BOX*
LOT OF 3 MOELLER FAZ-2-C4 CIRCUIT BREAKER * OUT OF A BOX*
Lot of 3 Moeller FAZ-2 S10 10 Amp Breaker Switches
LOT OF 3 MOELLER DILEM-10-G ConTACTORS 15AMP DILEM10G
Lot of 3 Moeller DIL EM4-G Contactor 4 Pole 24VDCCoil 15A 400V VAC 4kW
LOT OF 3 MOELLER BFT 125/6 * OUT OF A BOX*
LOT OF 3 MOELLER 31DILM MINIATURE ConTACTOR * IN A BAG*
LOT OF 3 MOELLER 13 DIL MINIATURE ConTACTOR 13-DIL 13DIL
LOT OF 3 KLOCKNER-MOELLER 20DIL AUXILIARY ConTACT MODULE * IN A BOX*
LOT OF 3 KLOCKNER MOELLER SELECTOR SWITCH RWK3R * IN BOX*
LOT OF 3 KLOCKNER MOELLER HI11-P1/P3 AUX. SWITCH * IN BOX*
LOT OF 3 KLOCKNER MOELLER FAZ-S6 SUPPLEMENTARY PROTECTORS, 230/415 V, FAZS6
LOT OF 3 KLOCKNER MOELLER DIL 00M-10 ConTROL (300)
LOT OF 3 KLOCKNER MOELLER ConTACTOR 11 DIL EM * OUT OF BOX*
Lot of 3 Klockner Moeller Circuit Breakers FAZN C20-2 / FAZN C40-3 / 20A / 40A
LOT OF 3 - KLOCKNER MOELLER DIL R 31 Contactor 500V~/600V 10A
LOT OF 2 MOELLER DILM17-10 Contactor DILM1710 DILM17
LOT OF 2 MOELLER PROTECTOR FAZ/FIP-XHI11 * OUT OF BOX*
Lot Of 2 Moeller PKZM0-6.3 Manual Motor Starter Switch/CircuitBreaker Ser. No 04
Lot of 2 Moeller PKZM0-10/PKZM0-4 Motor Protector Circuit Breakers
Lot of 2 MOELLER P1-25 SWITCH 3 PHASE
Lot of 2 Moeller LS-11 Plunger Roller Mechanical Limit Switches
LOT OF 2 MOELLER LAMP MODULE M22-CLED-R (RED) * OUT OF BOX*
LOT OF 2 MOELLER LAMP MODULE M22-CLED-B (BLUE) * OUT OF BOX*
LOT OF 2 MOELLER LAMP MODULE M22-CLED230-G (GREEN) * OUT OF BOX*
LOT OF 2 MOELLER DP-M22-DL-W ILLUMINATOR * IN BOX*
Lot of 2 Moeller DILM820-XHI11-SI Contact Block
Lot of 2 Moeller DILM1000-XHl11-Sl Contact Block
LOT OF 2 MOELLER DIL00M ConTACTOR RELAYS DIL-00M
LOT OF 2 MOELLER 13DIL MINIATURE ConTACTOR * IN A BAG*
LOT OF 2 KLOCKNER-MOELLER FAZ-2-S2 CIRCUIT BREAKER * IN A BOX*
Lot of 2 Klockner-Moeller DIL08-53 RELAY
LOT OF 2 KLOCKNER MOELLER U-PKM0 * IN A BOX*
Lot of 2 Klockner Moeller S2 Mounting Bracket Old Stock Box
LOT OF 2 KLOCKNER MOELLER PKM0-2,5 *NICE*
LOT OF 2 KLOCKNER MOELLER ConTACT BLOCK K-NA * OUT OF BOX*
LOT OF 2 KLOCKNER MOELLER ConTACT BLOCK K-NA * OUT OF BOX*
Lot of 18 KLOCKNER MOELLER F CONTACT
Lot of 15) Moeller RLF-GE Orange Indicating Pilot Light Push Button +Priority SH
Lot of 15) Moeller RLF-GE Orange Indicating Pilot Light Push Button +Priority SH
Lot Of 11 Moeller FAZ Circuit Breaker 1 pole
Lot Of 10 Moeller Punches 1291-0313
Lot of (4) Klockner-Moeller RT110 RP-RTX Industrial Red Stop Push Button
Lot of (4) Klockner Moeller Sector Switch RWK3R NNB + Free Priority Shipping!!!
Lot of (4) Klockner Moeller Sector Switch RW1R with BE3 Adapter Mounting Bracket
Lot of (4) Klockner Moeller Red Emergency Industrial Stop Push Button NNB
Lot of (4) Klockner Moeller RDH-9RT110 Red Emergency Stop Push Button
Lot of (4) Klockner Moeller RDH-9RT110 Red Emergency Stop Push Button
LOT OF (4) KLOCKNER MOELLER ConTACT BLOCK ASSEMBLIES 1 N.O. 1 N.C. MODEL BK11