MURR 51301

MURR 51301

IC670ALG230

HP / National Instruments 763061-02 TYPE X2 GPIB INTERFACE Cable 2.1 Meters 6FT

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Harmonic Drive HS-250-2 MDB04-2D20-T HS 2502 MDB04 2D20-T

SP-100S-MF2-70-1E1-2S

National Instruments 185893G-0110 GPIB-VXI/C VXIbus C-Size Module

NATIONAL INSTRUMENTS AT-GPIB ATGPIB INTERFACE CARD

PLC在程序执行阶段：按用户程序指令存放的先后顺序扫描执行每条指令，执行的结果再写入输出状态寄存器中，输出状态寄存器中所有的内容随着程序的执行而改变。

3D SYSTEMS / DC POWER SUPPLY VAT CONTROLLER

TOSHIBA PCB BOARD PPMC4C 4-D214-2 PMC4C 4 D214 2

BAL-TEC REC 010 BALZERS UNION HV-PRINT HS 011 BU 005 259 BU 005 253 HS011

NATIONAL INSTRUMENTS SCXI-1324 HIGH VOLTAGE SCREW TERMINAL BLOCK (L6)

National Instruments 183913C-01 NI Instrument Simulator

National Instruments AMP Cable

National Instruments NI PCI-6025E NI DAQ Card, Multifunction, Analog Input

National Instruments cFP-2020 Ethernet Controller Interface, Compact FieldPoint

Main CPU Robot FANUC / A16B-3200-0040/05B

VDH-050-MF1-40-031-0G0

SPK140-MF2-7-15

National Instruments NI cFP-RTD-124 8-Channel 4-Wire RTD Temp. Module for cFP

FW-EPC-10VRS EPC2800

National Instruments NI 9421 digital module for daq or compact rio

Lust LTi DRIVES Frequenzumrichter CDA32.006.C1.4.H09

MURR 51301

PANASONIC PULSE MOTOR DRIVER PANADAC337N-02 PANADAC337N 02

22D-D2P3N104

SP-100S-MF1--3-1K1-2S

SERVOLAND / GLM20 TYPE / SVDH20-P / *HMB*S*8I80H*0043 / SVDH20 P

ORIGIN GEXUS >GE-4F< >GE 4F< GE 4F 05P129P10

National Instruments 5604190 Power Distribution Relay

FUJI / APR-MX / RPXD0060-1T / RPXD0060 1T

National Instruments NI GPIB SCSI-A Interface

Eurotek Line Reactor ET/RF 3016-MHP 80403

OMRON SYSMAC CS1G CS1G-CPU44-EV1 CS1G CPU44 EV1

分配PLC的I/O点，画出PLC的I/O端子与输入/输出设备的连接图或对应表。（可结合第2步进行）。

NAIS MICRO-IMAGECHECKER A200 ANMA210T97

ROCKWELL SAMSUNG / CPU BOARD / SRCP_BN586 PCISA-158HV-AMP V4.1

National Instruments FP-2000 Ethernet Controller Module P/N 187685E-01. 3B

National Instruments SCXI-1180 Feedthrough Panel

NACHI FUJIKOSHI SERVO AMP UNIT PSUA61A

RELIANCE TST1 MA-25006 S-25005 TST1 MA 25006 S 25005

National Instruments NI PXIe-8105 2.0 GHz Dual-Core PXI Exp. Embedded Controller

SAMSUNG 400W CSDA-0402B3 CSDA-XXXXB3 RA41-00103A CSDA 0402B3

GPIB/IEEE Cable 2.0M National Instruments 763061-02

AVAL DATA / ELAN-T.BD / AVME-361 / TSA-221 / AVME 361 / TSA 221

MITSUBISHI / AC SERVO DRIVER / MR-H100B / MR H100B >

SEMIKRON SEMIPACK 5 SCR 1600V 500A SKKH570/16E SKKH570 16E (MOQ : 2PCS)

National Instruments DIO 6533

HIVERTEC PCB BOARD HPCI-CPD508A HPCI CPD508A

National Instruments PXI-5401 Arbitrary Function / Signal Generator NI DAQ Card

NATIONAL INSTRUMENTS NI 2501/2503 USER MANUAL 24 CHANNEL TWO-WIRE (#14)

PANASONIC SERVO MOTOR MSM5AZA1A

LTI LUST ELECTRONICS VF-1402S-G10-FA RQAUS1

SP-180S-MF2-40-1G1-2S

OMRON / SYSMAC CS1G / CS1G-CPU43-EV1 / CS1W-SCB41 / CS1G CPU43 EV1

TEKNIC SST SERVO STEPPER SST-1500-XCW/F SST 1500 XCW F

LAM RESERCH 853-800083-346 853 800083 346

National Instruments PC-DI0-24 Board

INDRAMAT SERVO DRIVER CLM01.3-X-0-2-0 CLM01.3 X 0 2 0

Lust LTi VF1204S G10 FB I6 M3 Frequency Converter 3068319

HYOSUNG SERVOPACK CACR-SR10BB1AF

National Instruments 350938C-00 - labVIEW 7 Express Getting Started w/Tek Open W

伺服主要靠脉冲来定位，基本上可以这样理解，伺服电机接收到1个脉冲，就会旋转1个脉冲对应的角度，从而实现位移，因为，伺服电机本身具备发出脉冲的功 能，所以伺服电机每旋转一个角度，都会发出对应数量的脉冲，这样，和伺服电机接受的脉冲形成了呼应，或者叫闭环，如此一来，系统就会知道发了多少脉冲给伺 服电机，同时又收了多少脉冲回来，这样，就能够很精确的控制电机的转动，从而实现精确的定位，可以达到0.001mm。

SANYO DENKI AC SERVO MOTOR P20B10150HXS2C

NATIONAL INSTRUMENTS 6-CHANNEL ISOLATED D/A CONVERTER MODEL SCXI-1124 (Z5)

OMRON SYSMAC CPM2A CPM2A-60CDR-A CPM2A 60CDR A

OMRON / 2D CODE READER / V530-R150 / V530 R150

PRT / SWITCHING POWER SUPPLY / PRM400

CKD / ABSODEX / AX0170H

SIEMENS / C53207-A322-B21-5 / C53207 A322 B21 5 C53207A322B215

NATIONAL INSTRUMENTS AT-GPIB INTERFACE CARD 181060-01 REV. E3

PAKER MICROSTEP DRIVE S SERIES S83-93 S6-DRIVE S83-93

KOYO / KOSTAC / SR-10R

HIVERTEC PCB BOARD HPCI-CPD508A HPCI CPD508A

YUSHIN / SERVO6000 DRD / PENDANT TEACHING BOX

SANYO DENKI / ABS SUPER SERVO AMPLIFIER / 65AA015PXR02 65BM007HBR

National Semiconductor / Texas Instruments LM208H Precision Op Amps Metal Can

KYOPAL CPCIX-DIO(128) CPCIX DIO 128 CPCIXDIO128

PXI-8335

YASKAWA SERVOPACK DR2-08ACY11 DR2 08AC Y11

ADLINK SBC NUPRO-865 NUPRO 865

OMRON 3G8F7-CLK23-E 3G8F7-CLK21 0938048-0C

PLC的结构与工作原理，PLC的结构，PLC的类型繁多，功能和指令系统也不尽相同，但结构与工作原理则大同小异，通常由主机、输入/输出接口、电源、编程器扩展器接口和外部设备接口等几个主要部分组成。

SANYO DENKI BL SUPER 45BA010FXR-C91 VSV100-10 BA010G-091 45BM014H 45BA010FXR C91

YASKAWA AC SERVO MOTOR SGMPS-15ACA21 SGMPS 15ACA21

National Instruments Kabel cable Schnittstellenkabel 2m

SP100S-MC2-40-1G1

National Instruments NI PCIe-GPIB Interface Adapter Card 198405C-01L

EUROTEK ET-SW/3X300-500/24/6/NB N° 4133 Power Conversion Box EUROTEK Power Line

PANASONIC COLOR CCD CAMERA WV-CL834

MITSUBISHI AC SERVO MOTOR HA-FE23 HA FE23

Cyber Optics Corporation PWA5120208

SANYO SM04-001 C/4

PXI-0144

BALDOR DC SERVOMOTOR MT-4525-BTYCN 55P537Z104G1

AEB125.3

MKS 600 PRESSURE CONTROLLER SERIAL INTERFACE 113594

B4141-0/9

MURR 51301

PCI-5401

3HAC14265-1

LP090-M01-10-111

Eurotek ET/RF 3016-MHP line Reactor ETRF3016MHP

D-5410-Melec

National Instruments NI GPIB-SCSI-A IEEE-488-SCSI Controller w/ Type X2 Cable

FUJITSU DENSO / CONVERTER / FDS36-21

CIPRICO INC / PCB BOARD / 66005320

POWER ONE POWER SUPPLY HPM7CZCYBEAUF6S558 2000W

National Instruments ER-16

FUJI inverter FVR-G5 FVR004G5B-2 FVR004G5B 2

RELIANCE CLD1A MA-25007-1A S-25006-1 CLD1A MA 25007 1A

National Instruments 763061-02 Rev C 2.1 Meter GPIB / HPIB Cable

SP 210-MC2-20-131-SP1

SANYO DENKI BL SUPER POWER UNIT PDT-S2020S04 PDTS2010S PDT S2020S04

Orbotech I/O-0349373B C.S I/O-0349374B P.S I/O 0349373B C S I/O 0349374B P S

National Instruments SCXI-1325 Screw Terminal Block $30

IAC / CPU BOARD / EM-350A V2.1 / EM 350A

BECKHOFF / AX2003 / AX 2003 / 2KVA /3A/ IP20

NEC / PC-9821 VGA CARD / G8YKJ A5 / 136-552593-B-02 / G8YKJA5

OMRON FACTORY INTELLIGENT TERMINAL FIT10-CPU01 FIT10 CPU01

PHOENIX CONTACT PROFIBUS DP IL PB BK 2740054 (MOQ:2PCS)

MYCOM / VME BOARD / PG012A / PG 012A

YASKAWA / SERVOPACK / CACR-04-NF / CACR 04 NF

LP090-M01-5-111

LUST Servomotor LSH-074-1-30-320/T1,B,G6M (9700209)

KOLLMORGEN / SERVOSTAR SP / CP310250

TEL TEB103-11 FPIF TEB103-12/FPIF-1 EC08-000028-12 EC81

National Instruments TBX-68 DIN-RAIL Mount I/O Connector Block

SANYO DENKI / SAN DRIVER / PDT-J01-102

MITSUBISHI MELSEC-K INPUT UNIT KX40N

PXI-4472

National Instruments NI PCI-7350 2 Axis Board

HITACHI / H-SERIES / COMM-2H 6KAGBDFA

HONEYWEL / 80364261-100 / 80363898-001 51304543 REV B 80364261100 80364261 100

Metal detector Teknetics Eurotek Pro 11" - Head - Covers ricerca Oro Monete Meta

National Instruments SCXI-1326 Terminal Block Part # 185700A-01

PLC在程序执行阶段：按用户程序指令存放的先后顺序扫描执行每条指令，执行的结果再写入输出状态寄存器中，输出状态寄存器中所有的内容随着程序的执行而改变。

LPK-090-M02-3-111

PANASONIC SERVO DRIVER MOTOR SET ADKA400GVTAAB AMKC060B10KFG

LEITCH / PCI CARD / 743-190 REV.10L

National Instruments UMI-FLEX6 Universal Motion Interface 184976A-01

cFP-PG-522

LUMONICS LASER CONTROL MODULE LUXTAR LXTR50 E80X7980X

ASYMTEK 6STATION RELAY MODULE 62-0744-00 REV.K

CUS250LD-5

MITSUBISHI AC SERVO MOTOR HG-AK0336-S2 HG AK0336 S2

PARKER HANN / GT6 SEMINI STEPPER + MOTOR SET / GT6-L5 + ES33B-DNR10

cFP-PWM-520

FUJI FVR-E11 FVRO.2E11S-2 FVR0.2E11S-2 FVRO2E11S 2

National Instruments P/N: 778848-01 NI Analog Waveform Editor NEW

FRONT END PROCESSOR / 46-321299R1 REV O 46-321298 G1-A / 46321299R1 46321298 G1A

National Instruments DAQPad-1200 Data Acquisition & Control for Parallel Port

YOKOGAWA FINESERV PC10020 AA00/L1Z002

CREVIS / CCD CAMERA SET / HV-B080V-LD / HV B080V LD

PCI-7344

FANUC AC SERVO MOTOR MODEL : 1-0S A06B-0312-B002 A06B 0312

National Instruments PCI-6023E PCI Daq Card NI Data Acquisition

CHUO SEIKI / CONTROLLER / LMC-2

National Instruments 186838E-0R5 SHC68-68-EP Cable

MITSUBISHI / AC SERVO / MR-J2-40B-A15 / MR J2 40B A15

5136-DN-104

T1008 National Instruments cFP-TC-120 184522B-02

FUJI Driver Motor SET RYS101S3-VVS-ZA2 GYS101DC1-SB RYS101S3

SK100SMF152H1

National Instruments PC-516 Data Acquisition PCI Card w/NI-DAQ Software

LUST VF1205M Frequenzenumrichter

LENZE E82EV552_4C E82EV552 4C 5.5kW

NATIONAL INSTRUMENTS MODEL FP-TB-1 THERMOCOUPLE MODULE (BB)

GjR5212100R2

SONY CCD CAMERA XC-HR50 XC HR50

SAMSUNG (HITACHI OEM) / HIBRAIN INPUT / 33016136-3 / 33016136 3

MURR 51301

SIEMENS PLC BOARD 00330647-06-KJ-L027-0082 TZ

CC-PCF901 订货号：51405047-175

LA-M00105-2 LK-M00105D / LAM00105-2 LKM00105D LA M00105-2 LK M00105D

PCI-8430/4

YASKAWA JANCD-SP17B DF8203304-B0 JANCD SP17B DF8203304 B0

ADVANTECH / TTL DIGITAL / PCL-730 REV.B2

National Instruments Embedded Platform Evaluation Kit

SCHNEIDER AUTOMATION / TSX QUANTUM / 140 DDO 353 00

FANUC AXIS CONTROL 4-AXES A16B-2200-025 A16B-2200-0250/05C

SCREEN AP-1368C AP-1369B EEUC-0015 AP 1368C AP 1369B EEUC 001

OMRON / VME BOARD / M0021 / 3G8B3-M0021 0287281-6D / 3G8B3 M0021 0287281 6D

SP-140-MC1-10-161-000

TP110-MA3-110-011-000

PANASONIC AC SERVO DRIVER MSD011P1ECO3 MSD011P1EC03

MITSUBISHI / CPU UNIT / A3UCPU

PFE500F-48

PANASONIC / AC SERVO DRIVER / MSD1A321E

National Instruments SH100100 Shielded Cable 182853C-02 100 Pins 2m NI DAQ

HITACHI Hseries H-702 CPU2-07H CPU2 07H

TOSHIBA PCB BOARD PPMC4C 4-D214-2 PMC4C 4 D214 2

YAMATAKE / DMC10D2TR0100

National Instruments 778837K-030 NI-DAQmx Documents & SW Combo Kit NWOB

NATIONAL INSTRUMENTS TYPE X2 763061-03 REV.C 4 METERS CABLE

LG / VARIABLE FREQUENCY DRIVE IS3 / SV075iS3-4N

National Instruments NI cFP-DO-400 8-Channel Sourcing Digital Output Module

MSSI-055G-045E-320C-IFNB-H2701

Eurotek 4 Channel Relay ET-MRZ04/24DC/SC/N/AR Breakout Board

NATIONAL INSTRUMENTS cFP-CB-2 CONNECTOR BLOCK

SP lOOS-MFl-3 -lKO

T1014 National Instruments cFP-BP4 188546C-01

FANUC / SERVO AMPLIFIER / A20B-0009-0320/10D A350-0009-T322/06 A20B0009032010

National Instruments GPIB-SCSI-A Controller

ASM APD20 DRIVER 02-15787-02 03-20959-01 02 15787 02 03 20959

National Instruments PCI 6035E

TP-110S-MF2-40

JINYOUNG CONTECH / TFT LCD MONITOR / VS800-V

OMRON / PROGRAMMING CONSOLE UNIT / CVM1-PRO01

ORBOTECH NREP NREP-OKI 0373847 NREP-OKI

SP 100S-MC1-7-0G1-2K

C79039-A9000-C111-06

National Instruments NI PXI-5441 100 MS/s AWG OSP

National Instruments 777641-08 184677D-02 PCI 485/8 Port

JUKI / SUB-CPU / SUBCPU REV.03

Allen-Bradley / AC SERVO MOTOR / MPL-A4530K-MK22AA

MOTOROLA / MVME333-2 / 01-W3503B056 / 84-W8503B01C REV A / MVME 333-2

National Instruments cFP-RTD-124 8ch Temperature Module, Compact FieldPoint

FANUC / A14B-0070-B002 / A14B 0070 B002 A14B0070B002

NATIONAL INSTRUMENTS NI 9203 8CH ANALOG INPUT MODULE 198861A-01L

National Instruments NI 9263 Analogausgangsmodul 4Kan?len 100kS/s 16bit, ±10 V

pci-184903c-14

SANYO DENKI / PENTASYN / PMM-BD-5725-3 / PMM BD 5725 3

NI8-M18-AP6X-H1141

SIEMENS / SIMATIC S5 / 6ES5482-7LA11 / 6ES5 482 7LA11

National Instruments NI 9225 Analog Input Module

JOINST / MONITOR / JST-LM72 / JST LM72

PCI-8335

运动控制，PLC可以用于圆周运动或直线运动的控制。从控制机构配置来说，早期直接用于开关量I/O模块连接位置传感器和执行机构，现在一般使用专用的运动控制模块。如可驱动步进电机或伺服电机的单轴或多轴位置控制模块。世界上各主要PLC厂家的产品几乎都有运动控制功能，广泛用于各种机械、机床、机器人、电梯等场合。

VARIAN TFS / ANALOG I/O / BB10 156047

PCI-1428

national instruments GPIB-120A, Bus Expander/isolator, 1S1555E-31, 50-60Hz

ASM 02-33575-42 MS896A AC SERVO DRIVER KIT+LDS III 02 33575

National Instruments Lab PC Computer Board Assy 180835-01

cRIO-9014

National Instruments NI PCI-6704 Analog Input DAQ Card 183689E-01

PXI-6513

数据处理，现代PLC具有数学运算（含矩阵运算、函数运算、逻辑运算）、数据传送、数据转换、排序、查表、位操作等功能，可以完成数据的采集、分析及处理。这些数据可以与存储在存储器中的参考值比较，完成一定的控制操作，也可以利用通信功能传送到别的智能装置，或将它们打印制表。数据处理一般用于大型控制系统，如无人控制的柔性制造系统；也可用于过程控制系统，如造纸、冶金、食品工业中的一些大型控制系统。

DN3-104-2-NP-E V1.4.1

National Instruments PXI-5142 100 MS/s Digitizer part # 779587-01

National Instruments PXI-1011 Chassis

NI National Instruments CA-1000 SC-2345 SC-2350 Dual 9-PIN (Male), D-SUB Panel

CY-210A

GPIB Cable 763061-04 rev C National Instruments X2 8 meters long

MATRIX / MD-SC / MD SC 6 >

MURR 51301

National Instruments Digital Electronics CCA 193426-01L FPGA Board for Elvis

TSXP57203

USHIO INC / FR-4 SEK-K / PB0068

FANUC A16B-1200-0100.02B A320-1200-T104/03 A16B-1200-0100-02B A16B 1200 0100 02B

HITACHI CW005-R1-IOU 68E2,122720 CW005 R1 IOU DDC-2VS

SCREEN AP-1027B 9EIO-4021 AP 1027B 9EIO 4021

MUSASHI PENDANT TP-11 TP 11

SIEMENS / SIMATIC / 6ES5470-4UB12 / 6ES5470 4UB12 >

National Instruments myTemp for NI myDAQ multi-sensor temperature measurement

RELIANCE ELECTRIC / SERVO MOTOR / S-6200-Q-H04AC 6066-01-003

JOINST / MONITOR / JST-LM72 / JST LM72

ABB EL3000 CONTINUOUS GAS ANALYZER EL3010-IPA EL3010 IPA

TEL SAT-MCTR PCB 3M81-001116-12 3M81 001116 12

National Instruments 183663C-01 AT-GPIB TNT Plug And Play IEEE 488.2 ISA Card

National Instruments PCI-MIO-16E-4 Data Acquisition Card

NATIONAL INSTRUMENTS GPIB-130 BUS EXTENDER

PCI-5153E

National Instruments PCI-6023E DAQ Card, Analog Input, Multi Function

National Instruments NB-MIO-16X Digital I/O Board,NuBus 慈善物品

PCIe-8255

National Instruments GPIB-100A BUS Extender

ALLEN-BRADLEY / KINETIX2000 / 2093-AM02 / 2093 AM02

JINYOUNG CONTECH / LCD MONITOR / INOV170-T

SPEEDLINE

SPK-075-MF2-10-131-PG

National Instruments TBX-68 Unshielded Screw Terminal I/O Connector Block

SIEMENS / SIMATIC IPC627C BOX PC / 6ES7647-6CD10-0EX0 / 6ES7647 6CD10 0EX0

National Instruments NI SCXI-1001 Chassis

National Instruments NI cFP-2000 Rugged Intelligent Ethernet Controller Int/face

National Instruments CCA,PCI-7030-MZA-6030E 184164K-05 183958E-01 REV X24

Lust LTI Servoantrieb CDA32.0004,C1.4

SAMSUNG PLUS N-70 CPL9215A CPL9215A-2 CPL9215A CPL9215A 2

INDRAMAT AC SERVO CONTROLLER TDM3.2-020-300W0 TDM32 020 300W0

SANYO DENKI SANMOTION R RS1A01AAW

STEPHAN / VPM INVERTER / SL 1500-130 / SL1500-130 SL1500130 1500 130

MITSUBISHI / MELSEC / AX80

National Instruments CB-68LP 68-PinTerminal Connector Block Board

OMRON CONTROLLER LINK UNIT CJ1W-CLK21-V1 CJ1W CLK21 V1

National Instruments 182008-04 X4 GPIB / HPIB 4M Cable / Metal Connectors

National Instruments NI 9421 digital module for daq or compact rio

National Instruments PXI-8310 NI StarFabric Interface Card, CardBus-to-PXI, cRIO

National Instruments NI cFP-DO-401 16-Channel Sourcing Digital Output Module

SANKYO AC SERVO MOTOR HA1LH01

PATLITE SIGNAL DISPLAY GSE-09TL0-K GSE 09TL0 K

National instruments FP-AI-110

PATLITE SIGNAL DISPLAY GM-1000R3-W

MITSUBISHI / RZ386 / BU288A172G51

PXI 8171

ASAHI / PACK DRIVER / AK-BX640 / AK BX640

PCI-1422

YASKAWA SERVOPACK SGDS-02A01A SGDS 02A01A

National Instruments FP-TC120 8CH. Thermocouple Input

SK 075S-MF1-3-0E1-1K00

YASKAWA NITTOKU NSC10 PC02 C1 JEPMC-IO128 C1 JEPMC IO128

SANYO DENKI BL SUPER SERVO AMPLIFIER 20BA150MFW11

SAEIL E371-06405 E371 06405

PLC的应用领域 目前，PLC在国内外已广泛应用于钢铁、石油、化工、电力、建材、机械制造、汽车、轻纺、交通运输、环保及文化娱乐等各个行业，使用情况大致可归纳为如下几类。

ASTECH AUTOMATIC MACHING NETWORK ALT-100RA ALT-100RA-03

National Instruments CABLE NI 184428A-01

LUMONICS LASER CONTROL MODULE LUXTAR LXTR50 E80X7980X

YASKAWA SERVO DRIVER SGDB-20VD-R SGDB 20VD R

HEURIKON / HK68/VE / 612A420-4C*10-04-9926 / HK68C/VE0-1MB / HK68 VE

TEL / 2108-020613-11 TTL-T0004 / 2108-020111-12 / 2108 020613 11

National Instruments GPIB-USB-A w/3 BNC's

SIEMENS / C53207-A322-B4-2 / C53207 A322 B4 2 C53207A322B42

按结构分，可分为整体式和模块式。整体式PLC是将电源、CPU、I/O接口等部件都集中装在一个机箱内，具有结构紧凑、体积小、价格低的特点；小型PLC一般采用这种整体式结构。模块式PLC由不同I/O点数的基本单元（又称主机）和扩展单元组成。基本单元内有CPU、I/O接口、与I/O扩展单元相连的扩展口，以及与编程器或EPROM写入器相连的接口等；扩展单元内只有I/O和电源等，没有CPU；基本单元和扩展单元之间一般用扁平电缆连接；整体式PLC一般还可配备特殊功能单元，如模拟量单元、位置控制单元等，使其功能得以扩展。这种模块式PLC的特点是配置灵活，可根据需要选配不同规模的系统，而且装配方便，便于扩展和维修。大、中型PLC一般采用模块式结构。还有一些PLC将整体式和模块式的特点结合起来，构成所谓叠装式PLC。

National Instruments SCB-100, P/N 182788B-01 REV: 6.0