PLC模块是构成可编程逻辑控制器（Programmable Logic Controller, PLC）系统的核心硬件单元，用于实现工业自动化中的逻辑控制、数据采集与设备驱动等功能。它通常以“模块化”形式存在，可根据控制需求灵活配置和扩展，广泛应用于汽车制造、能源化工、机械加工等工业场景。
核心组成与功能
PLC系统由多个功能模块协同工作，主要包含以下几类：
CPU模块
作为PLC的“大脑”，负责执行用户程序、处理输入信号并生成输出控制指令。其性能直接影响系统的运算速度与响应实时性。
输入/输出（I/O）模块
是PLC与外部设备的接口桥梁：
数字量输入（DI）/输出（DO）模块：处理开关信号，如按钮、继电器状态。
模拟量输入（AI）/输出（AO）模块：处理连续信号，如温度、压力传感器数据（4-20mA或0-10V）。
特殊I/O模块：如热电偶、高速计数等专用模块。
电源模块
为整个PLC系统提供稳定的工作电源，通常将交流电转换为直流电（如24VDC），部分还为传感器供电。
通信模块
支持Modbus、PROFINET、EtherNet/IP等工业通信协议，实现PLC与上位机、HMI、伺服系统或其他PLC之间的数据交互。
功能扩展模块
如温度控制模块（如三菱Q64TCTT）、运动控制模块等，满足特定工艺需求。
OYCE 08790239 REDUCER ACC993324-00
JOYCE 08790237 REDUCER ACC003536-00
FOXBORO E94-P28S TEMPERATURE TRANSMITTER E94 W/ 713329004 GAUGE
YASKAWA ELECTRIC JAMSC-120DDI35400 I/O MODULE 12/24 VDC 32 POINTS 4 MA VER. D1
F/S SKF 2308ETN9 BALL BEARING SINGLE ROW SELF ALIGNING 90X40X33MM, 2308 ETN9
WALTHER ELECTRIC 338419 CONNECTOR, WATERTIGHT (IP67) 30A, 3 PHASE 480VAC
BARBER-COLMAN MAQ3-00310 TEMPERATURE ConTROLLER MAQ300310, 000-3-00
KRonES 1-054-15-100-0 PIPES CPL. L-R DELCO A312TP321 1054151000
SKINNER X5H51580 1/4" SOLENOID VALVE CODE EC9 X5H51580EC9
SKINNER X5H51580 1/4" SOLENOID VALVE CODE EG0 X5H51580EG0
MISUMI 0612-2369 SENSORS WHT92602USA-063296901001-ECAL MR0612-2369
CONTA-CLIP 4R721661A CIRCUIT BOARD 1395.9
LEUZE LUMIFLEX 150917 ConNECTION CABLE MIN-3FPX-66
PARKER YA01-11-16C 1" UNFX1" NPT MALE YA011116C
PARKER H3517BHA53A VALVE 150 PSI REPLACES H35VXBHA53A, 12.0 VA, K593-302 COILS
CENTRAL STATES 42MPSFY-075 3/4" VITON POLYCLAMP GASKETS 42MPSFY075
NIB FERRAZ SHAWMUT A070F700 PROTISTOR FUSE 700V, 700A, 323A2432P77
NIB PEPPERL+FUCHS RKL24-54/100D PHOTOELECTIC SENSOR 419043, RKL2454100D
NIB MENCOM CORPORATION MIN-3FPX-100 CORD SET MIN3FPX100, 300VOLT, 10AMP
3 AUTOMATION DIRECT CPS-AP-F / CPSAPF CYLINDER POSITION SWITCHES 0.3M 3-PIN NSFS
WOODS AJ10A075 COUPLING HUBS AJ10 A075
NIB POWERTRAN DCT-100 TRANSFORMER 288VA, PHASE 1, 50/60HZ, 120V H1-H2, DCT100
CISCO WS-X5236-FX-MT 5500 CATALYST SWITCH CARD 5236 FAB# 28-2732-03
10 COOPER BUSSMANN FNQ-R-5 / FNQR5 CC-TRON CLASSIC CC FUSES 5A NSMP
NIB NSI SC-4/0 COPPER COMPRESSION SPLICE SHORT BARREL - QTY 15
MERCOID DAF-31-152-8 PRESSURE SWITCH DAF311528
F/S SKF 22213EK/C3 BALL BEARING SELF ALIGNING 65X120X30MM, 22213 EK/C3
SONY MAGNESCALE MSD-9220 DETECTOR MSD9220
THERMO ELECTRON CORPORATION 102663-00 MEASUREMENT INTERFACE BOARD 102664-00
MOORE INDUSTRIES LIT/1-5V/A/24DC LINEAR INTERGRATOR BOARD 350-246-01B
WABCO REXROTH PW67716-1 VALVES 150 PSI, PW677161
2-1/2" HANSON WHITNEY CO. 12 NS TAP 2" DEPTH 6 FLUTE, GH-6, MADE IN USA
DOVER FLEXO R4-A EA887C REGULATOR BOARD
BLH ELECTRonICS 02.153.04B CIRCUIT BOARD 02.153.04 B
ALLEN BRADLEY 1756-DHRIO /C ControlLogix DH+/RIO COMMUNICATION MODULE 1756DHRIO
PHOENIX ConTACT 5651352 BOARD REV. 0 TYP UMK-SE 11,25-1
ABB 500S1373 TRANSFORMER WITH TERMINAL BLOCK, 500P1369
AMP PACKAGING SYSTEMS 35-402253-02 REV G BOARD MOTOROLA P/N: 0182195V01
KYOSAN AQ1354PA010B MDK 44V-0 POWER SUPPLY BOARD 879R00600
ALLEN BRADLEY 800MS-J42B SER. A SELECTOR SWITCH W/ 800M-XAK SER. A ConTACT BLOCK
GENERAL ELECTRIC 44B337330G02 ConTROL STATION 44A306032
BALLUFF BMOA-AMP-D-PU-C-02 SENSOR ART: 03150, BMOAAMPDPUC02
SonNTEK LH-30 DEUTERIUM LAMP LH30
PRECISION SCIENTIFIC INC. 00344901 FLASH POINT TEMPERATURE ConTROLLER 00344801
NIB ALLEN BRADLEY 802T-AL2W5 LIMIT SWITCH SER. D, 600VAC, 802TAL2W5
NIB MRC 5310CG-H501 STEEL/C3/ABEC-1 BEARING 5310CGH501
GENERIC 230V 50/60CY SOLENOID COILS
NUMATICS 226-401B SOLENOID VALVE WITH 12SXD352B ConTROL VALVE 226401B
NIB ALLEN BRADLEY 1771-IG TTL INPUT MODULE 1771IG
OMRON CS1W-OD231 OUTPUT UNIT CS1WOD231, OD231, DC24V, 0.5A
TRANSDUCERS INC. G4-BB-250A CAPACITY 250 LBS.
STANLEY J3785/3 CABLE J37853 REV D
NIB NORTEL NETWORKS 303735-BR08 BAYSTACK 400-ST1 MDA, HDW 02, MOD REV 06
NIB G&L MOTION ConTROL M.1301.3993 DRIVE TO NSM MOTOR ENCODER CONNECTOR
ENC-NSM-001M-MCS-DCA-28-AA
HOPLAB MS2-48054 CIRCUIT BOARD 48054, 117-950-294, 76043
MICROMASS M955069BD1 UNF UNION ADAPTOR 10/32''
PARKER 16-316 ConNECTORS 1" TUBE TO 1" MALE THREAD 16316
DAYTON PROGRESS KNX 50 75 P.2420 ETCH CALLOUT & MARK LOGO
WESTERN RESERVE ConTROLS 1781-A16A BOARD 960740, 1781A16A
V334LS150
AGILENT G1315-67302 ConNECTING TUBING KIT 1,6-FT,0,5, 0100-1516, G131567301
SMC ZM131H VACUUM EJECTOR W/ VJ114 VACUUM SOLENOID 24VDC
PARKER 13943-12-8 CRIMP HOSE S 3/4" X #12 FEMALE JIC 37
ConTRAVES PC0529A PC BOARD SUPPLY
NATIonAL N44 CARBON BRUSHES
BOSTRON 5V1700 SUPER-V HSO V-BELTS
VEKTEK 32-1264-24 ROTARY UNION 32126424
GEORGIN C-118-P PRESSURE SWITCH C118P
FLOWSERVE WORCESTER ConTROLS 1 A4466RESE R2 VALVE 1" NPT
CAPP/USA 266680 TACHOMETER W/ALARMS, P/N: 266680
HonEYWELL 621-9934 I/O RACK POWER SUPPLY 6219934, INPUT: 115/230 VAC
BENTLY NEVADA 90040-13 RELAY MODULE 9004013
TEXAS INSTRUMENTS 500-5018 SERIES 500 INPUT MODULE
BALLUFF BMOA-AMP-D-PU-C2 PHOTOELECTRIC MINI AMPLIFIER 10-30VDC BMOAAMPDPUC2
AB6853-6 (D) CIRCUIT BOARD, HF TIMING 105 IAX
NIB DESTACO 89451-4 PNEUMATIC SWING CLAMP 894514
NIB ROSEMOUNT SERIES 78 RTD SENSOR, 078N11N00N020F1, SRL7001-8-4P-MOD3
CUTLER-HAMMER E30BA COMPACT PUSHBUTTON INDICATING LIGHTS, 120V
BOX OF 15 PARKER WC23R20A FULFLO HonEYCOMB FILTER CARTRIDGE
ASHCROFT ASH-RX-D-100-B-M-MB4-42-B-P25IW PRESSURE TRANSMITTER 4-20MA, RXLDP
FACTORY SEALED ATLAS COPCO 2910 3049-00 UNL VALVE SERVICE KIT 2910304900
USON CORP 407A HI RESOLUTION TRANSDUCER ConVERTER MODULE
SMC ZM103AH-K5LOZ-E15CL VACUUM GENERATOR ZM103AHK5LOZE15CL
MERLIN GERIN 60197 MULTI 9 C60 D 25A CIRCUIT BREAKERS D25A
NIB OMRON E3X-DA11TW PHOTOELECTRIC SWITCH E3XDA11TW, 12 TO 24V DC
SKF 608-2Z/C3 HT MINI BALL BEARINGS 907515-20 W/ SCREWS & WASHERS
NIB NTN 6218ZZC3/EM BALL BEARING 6218ZZC3/L627
FANUC A16B-2203-0190/03A DEVICENET MOTHERBOARD A16B-2203-0190
ENERPAC SLRS21 SWING CLAMP CYLINDER 04597C 5000PSI 350BAR
ARO INGERSOLL RAND E312SD-120-A VALVE E SERIES 116-218-33 COILS 120V AC
DANFOSS 1AR17-20T PILOT OPERATED RELIEF VALVE 158B9751
INGERSOLL-RAND 112G16AJ PUMP GLANDS 112G16AJX1-543F (2 HALVES EACH)
NIB NORTEL NETWORKS 302830-AR24 BAYSTACK 400-2FX MDA 4-PORT 10base-T/100base-TX
MTT DSP4040 REV. C BOARD TRGUNIT 993020 MTT INC.
BANNER S18SP6FF100Q / 30884 EZ-BEAM PHOTOELECTRIC SENSOR 10-30VDC 100mm NSMP
GENERIC HAMMOND / PEABODY MPC-H1 FFS134 POWER METER DB2D TYPE C 86709 MPCH1
GORDOS ARKANSAS GB18400-305 SOLID STATE RELAYS GB18400305, 240 VAC
FLEX-A-SEAL 2460-C7K 1-1/2" H.T. ROTARY W/ FS12811-07
GENERIC I46E1 BARBED X 1/2" NPT ADAPTER S
EATON CUTLER-HAMMER E22DE DIRECT VOLTGE UNIT FOR LED/NEON BULB
NIB NTN 32924 TRUST BEARING
NIB HUBBELL 28318-008 PBP PUSHBUTTON INSERT SINGLE SPEED/ PLUGIN PG2 28318008
SYPRIS PC-50 CURRENT SENSOR PC50, 4-20mA, 0-50 AMP
NIB WARNER ELECTRIC 7105-448-120 CABLE 30VDC, 30'' NPN-S, 7105448120
GATES MECTROL SPARKS 85-HTD14M-4354 BELT SPVBO15589|11 00044777 14MM 3-3/8" 14FT
LUMENITE ELECTRonIC CB-009 RELAY BOARD CB009
GE IC600CB502D ConTROL MODULE ASM. NO. 44A297094-G01 FAB NO. 44A717610-001 R03/4
WESTINGHOUSE MCP03150CR MOTOR CIRCUIT PROTECTOR STYLE 2610D55G04 600V, 3 POLE
HAYS ELECTRO-STEAM 2192-6421 SOLENOID COIL 24V, 50/60HZ, 17/12W, 150PSI
HonEYWELL 620-0053 I/0 EXPANDER MODULE 6200053
GE FANUC IC693CPU331X CPU MODULE
GE FANUC IC693PCM301K PROGRAMMABLE COPROCESSOR MODULE 192K
NIB UNITED TECHNOLOGIES HH 07AT 172 THERMOSTAT HH07AT172 MULTI STAGE 24V 2HT/2CL
NIB SKF 12339 OIL SEALS I.D. 1-1/4'', O.D. 1-3/4'', WIDTH 1/4''
GRAFOS 6134081900 FACE PLATE W/ GRAFOS 6134189300 PLATE
FUKUDA ELECTRIC 15078-1 TRANSFORMER 150781, 100VA
RELIANCE ELECTRIC 0-51444 POWER SUPPLY BOARD 051444
CUTLER HAMMER E57-12LE10-AA SER. E1 PROXIMITY SENSOR 20/250VAC, 3A, 250MA
VICTOR 370247 COMPRESSED GAS REGULATOR 200PSI W/ AIRCO 801 0786 & GAUGE, S350D
FANUC A16B-2202-0820/02B AUXILIARY AXIS ConTROL PC BOARD W/ A20B-2902-0070/04B
ATLAS COPCO 4231 5012 00 BOARD W/ 9040100117 CABLE 4231501200
DECCO DETROIT COIL COMPANY 24-93 D.C. SOLENOID 24 VOLTS DC
YASKAWA ELECTRIC DESIG3PCB DRIVE CAPACITOR BOARD 400VDC
ALLEN-BRADLEY 849-N2A SER A PNEUMATIC TIMING RELAY AUXILIARY ConTACT 849N2A
FIFE 0H0 BS1-8RA, PUMP OHOBS18RA
MCGILL 1701-7112 INPUT BOARD 17017112, PCB P/N Q6511, ASSY P/N: 1010 REV. F
FORRY 040383 CIRCUIT BOARD PROCESSOR BOARD ASSEMBLY 040383/C
SKF 6314-Z/C3 DEEP GROOVE BALL BEARING 6314ZJEM
GENERIC 23981-02 BOARD REV. F 33773-00 REV. B
AMF R10-E2441-1 RELAYS 115VAC, A34257-08, R10E24411
ISSC 300-MX5 LOGIC BOARD B-16-09-074-E, ID/N: D-16-12-239 REV. D
202-026H TRANSFORMER CMI-1087 9210 HIPOTTED
ATLAS COPCO STYRKORT 1K 4222 0192 03/REV. D7 INDEX BOARD 81N810AB01 REV. 4
LUBRIQUIP HDV-9-A26 MANIFOLD BLOCK VALVE ASSEMBLY MSP-5T MSP5T HDV9A26
HonEYWELL 621-0004 SDM MODULE 6210004 REV. A2
UNITED SCIENCES 1003-0500-06 POWER SUPPLY BOARD 1003050006
BALANCE TECHNOLOGY PCB 33513 PC BOARD
PARKER MODEL: 02.00 CC-P2HLT14AC 8.500 CYLINDER 3000PSI
RBC KP6A-FS428 DEEP GROOVE BALL BEARINGS 0.375" X 0.875" X 0.313"
SAFT LS14500-STS AA SIZE LITHIUM BATTERIES 3.6V LS14500STS
ALLEN BRADLEY 802F-TE6SM11 SAFETY INTERLOCK SWITCH SER. A REV. A W/O KEY
YASKAWA ELECTRIC YPLT31002-1C PC BOARD ASSEMBLY DRIVE BOARD GCMK-C2X
FANUC EE-4707-030 LOCAL STP ConTROLLER HOOKUP KIT EE4707030
FANUC GFM A03B-0801-C462 RC01C ROBOT ConTROL MODULE A03B0801C462
PNEUMEC C80-58 S.E.F. CYLINDER 0036005
PHARMA ALLIANCE GROUP AQUACLEAR BIOCIDE, SF EASY TUBE 10 GMS
RENISHAW MK2, A/1029/0161, M/1029/0160/03
GATES B66 HI POWER II POWERBAND BELT 5-1/4" WIDTH
NIB PARKER 73218BN75N00 VALVE 73218BN75N0033363
INLAND MOTOR C-78509-2 MOTOR ConTROL BOARD REV 4 C-78509-4
TOYOZUMI DENGENKIKI SD21-500A TRANSFORMER 500VA, 50/60HZ, SD21500A
JASON 2000-8M TIMING BELT 3-1/2" WIDTH 20008M
NIDEC ConTROL TECHNIQUES SM-DeviceNet / 82000000011100 OPTIONS MODULE USNP
GE IC600CB502D ConTROL MODULE ASM. NO. 44A297094-G01 FAB NO. 44A717610-001 R02/2
SAMSON 3771-0 PNEUMATIC POSITIonER 37710 FABR. NR. 190098
GE FANUC IC693MDL310C OUTPUT MODULE .5AMP, 12POINT, 120VAC
NTN UCFLU-1.3/4 MOUNTED BALL BEARING FLU209V
NIB NACHI 6218Z DEEP GROOVE BALL BEARING 6218ZZNR, 6218-ZZNR
NIB FAIRCHILD EA-12127-2 SERVICE KIT FOR 10BP -300 & 400STANDARD, EA121272
NIB FAIRCHILD 12127-2 SERVICE KIT FOR 10BP -300 & 400STANDARD, 121272
ALLEN BRADLEY 1771-ES SERVO ENCODER 1771ES
GOULD SHAWMUT 60658R FUSE BLOCKS 60AMP, 600V
SIEMENS 6ES7-323-1BH01-0AA0 I/O MODULE E-STAND: 01 6ES73231BH010AA0
NATIonAL ELECTRIC 151875 COIL 28594 WHSK 40
DIAMOND NO. 50-2 ConNECTING linkS C-6550CL-08-P
PARKER SERIES HMI 50 CCHMIRNS34MC 40.00 M 1122 CYLINDER
NIB 10 GE IMRC2K VOLTAGE SURGE SUPRESSSOR BLOCKS 50V-127V AC
NIB ALLEN BRADLEY 800T-10JBH2KB7AX ILLUM. SELECTOR SWITCH 3-POS. 800T10JBH2KB7AX
GENERIC 9218-Z CRANK-INTERLOCK ACTUATOR C.A.G.
FOXBORO Q0104PE pH MEASUREMENT ELECTRODE QO1O4PE QO104PE
NIB TECAN AG GENESIS OPTIBO V2.0 BOARD 02008908, MT97230058, V2.0-C
SEALED RAYCHEM GELCAP-4 / 292284-000 GelCap INSULATING SPLICE COVER 600V KIT
LITTELFUSE FLSR 300 ID / FLSR300ID TIME DELAY FUSE W/ INDICATOR 75-600V 300A