整体式主机：CPU、电源、I/O集中在单机箱，结构紧凑、成本低，适配小型控制系统。
模块式主机：各部件拆分为独立模块，配置灵活易扩展，是中大型PLC的主流结构。
叠装式主机：结合前两者优势，模块靠电缆连接，兼顾灵活性与小巧体积。
基础控制类模块
CPU模块：PLC的运算核心，负责处理信号、执行程序、协调全系统工作。
电源模块：为系统提供稳定供电，部分可同时为输入信号供电，带过压、短路保护功能。
信号处理类模块
数字量模块：处理开关信号，分输入（采集按钮、限位开关信号）和输出（驱动继电器、指示灯）两类。
模拟量模块：处理温度、压力等连续信号，支持0-10V电压、4-20mA电流等标准信号格式。
扩展功能类模块
通信模块：支持以太网、Profibus、Modbus等协议，实现PLC与上位机、其他设备的数据交互。
特殊功能模块：包含高速计数模块、定位模块、温度控制模块等，可完成普通模块无法实现的专用控制需求。
继电器输出：适配交直流负载，带载能力强但响应速度慢，适合低频场景。
晶体管输出：仅支持直流负载，响应速度快寿命长，适配高频脉冲输出场景。
晶闸管输出：专用于交流负载，响应速度介于前两者之间。
UNI TORQ 1/2" BALL VALVE ACTUATOR M20K55 WITH ASCO8551A001MS
DARRAH ELECTRIC A900 589 01 WITH MDD 95-12 N1 B
BROWNING 2-BOLT PILLOW BLOCK BEARING 1-11/16" BORE PB950NEX 111/16 *NO COLLAR*
SURPLUS SHEFFER CORP. SMITH SERVICES CYLINDER 7.5HP 220/440V22/11AMPS
STEYR BEARING 4NU13
SOR PRESSURE SWITCH 4NN-K5-N6-H2A
WESTINGHOUSE THERMOCOUPLE 185C216G01
DANAHER CONTROLS ENCODER HR52502500C01
CATERPILLAR RS-232C COMMUNICATION MODULE RS232C
CONSPEC B25 RELAY CARD P1097 CIRCUIT BOARD
ASCO 1/4" 250 VDC 100 PSI SOLENOID VALVE HC8320G702
IFS 4 CHANNEL VIDEO TRANSMITTER MULTI MODE VT5020
IFS VIDEO XTMR/DATA REC/XTMR VT1700WDM
WANDFLUH VALVE ADRVN10-Y-S610
IFS VIDEO TX VT1102M
ASCO VALVE KIT 306317
ASCO VALVE HTX8320A17308407
THAYER SCALE SSP TERMINAL BOARD B-54296A
HERION VALVE 82-124-00.8001 8-150PS1 220V 50HZ 16VA
SIEMENS 4 INPUT 4 OUTPUT INTERFACE SLAVE00-0AA3
IKS BEARING SS99R16
WATTS 2-1/2" BALL VALVE 2-1/2 S8450 M1 VT OC 1000 WOG 9130
WESTINGHOUSE TYPE AM TIME RELAY 135A093G08
PRISM CIRCUIT BOARD VJETMON
ALLEN BRADLEY SIZE 1 3 POLE 120 VAC COIL 10 HP STARTER709-BODX258
GOYEN DIAPHRAGM VALVE RCA62TLPX/2213
FOXBORO CONVERTER MODULE 3C8-E2D
IN BAG WESTINGHOUSE CAPACITORS 2384A91H03Y
STONEL QUARTZ EXPLOSION PROOF VALVE MONITORINGX33B02SDM
ALLEN BRADLEY SIZE 1 27 AMP 600 VAC 120 VAC COIL 3 POLEREVERSING CONTACTOR
FOXBORO CIRCUIT BOARD B0132CS
Howell Instruments Tepmerature Indicator BH 186B-366
ENDRESS+HAUSER ENCLOSURE ONLY MODEL E1
EFECTOR INDUCTIVE PANCAKE PROXIMITY SENSOR ID5055
Foxboro Liquid Level Transmitter 13FA-MS31A5 W/FISHERREGULATORFS-67CFR-235
REXNORD SUN GEAR SRA100047A
ASCO RED HAT SOLENOID VALVE 1/4" PIPE SIZE NS8320174
HOFFMAN ENCLOSURE A-12106CHSCFG WITH POWER-ONE HB12-1.7-ALAIDIG
METTLER TOLEDO CIRCUIT BOARD E14896900A
YASKAWA SERVOPACK CONTROLLER CACR-SRA5AB
GROVE GEAR 7.5:1 RATIO WO
GE OVERCURRENT RELAY 121AC53A801A
Cincinnati Milacron CIRCUIT BOARD 3 531 3379A
RELIANCE ELECTRIC DIODE ASSEMBLY WITH HEAT SINK 78178-W
UNBRANDED DOUBLE CHAIN SPROKET 3-3/8" BORE 12228
BOX OF 10 MCGILL CAM FOLLOWERS CFH 435
GMR Angular Contact Ball Bearing 7905A5DB
MICRO SWITCH PROXIMITY SENSOR LYT02C-2S
GE LIMIT SWITCH CR9440D2BB
Edwards OIL Vacuum Pump G1099-80023, S63P
WESTINGHOUSE LIMIT SWITCH HDH24S4F
DENISON HYDRAULICS VALVE 016 82918 0 0054802
EAGLE SIGNAL 120 VAC TIMER CE503A6
ASCO RED HAT 1/2" SOLENOID VALVE EF8300D76U
DODGE TIGEAR GEAR202Y025N056K4
BARKSDALE PRESSURE SWITCH D2H-H18
BOX OF 2 CHESTERTON SEALS ID 4.7500 OD 7.2500 SH 0.5000 30KW 30KWIPER
DAMAN HYDRAULIC MANIFOLD D-451-164
MARTIN 5-1/2" BORE COUPLING 16016 MTO SPROCKET
GE FANUC MEMORY CIRCUIT BOARD 44A20751-G01
GE FANUC MEMORY CIRCUIT BOARD 44A720751-G01
MARTIN 3" 120 19H CHAIN SPROCKET 120B19H
BENTLY NEVADA 3300 XL 8MM PROBE 330101-00-40-05-01-00
HEIDENHAIN ROTORY ENCODER ROD426 1800
LPA CIRCUIT BOARD 951009 REV A
THE PYLE NATIONAL 2 POLE 150AMP 125VDC. PLUG BCRF0-150-AE
ASCO VALVE HT8211A15 MO
E 1 1/2 NPTF CONN 6-14 IN WT SPRING PRESSURE REGULATOR122-12
GE CIRCUIT BOARD PWB244A8229G1
ASCO VALVE WJSP8320B174MS
JOSLYN CLARK LIMIT SWITCH ROLLER A
RIVETT 3000PSI HYD SOLENOID VALVE 6553-03-41
SNAP-LOCK LIMIT SWITCH EA70070030
AMERICAN A5224SS ROLLER BEARING UM AD5224
KEYENCE PRESSURE SENSOR AP-16S
Asco Red-hat Solenoid Valve 120v-ac 1/2in 831667
UNITOR ACTUATOR M-74DA/DLS WITH TCI 1-316 BALLVALVE
ASCO 3/8" PIPE 110/120V. SOLENOID VALVE FT8344A73
KROHNE BM 70 EX LEVEL RADER 434 853/1
DODGE TYPE K/DI PILLOW BLOCK BEARING 1-5/8" BORE 060152
LINKBELT SPHERICAL ROLLER BEARING 22217LBK/W33/C3
BOX OF 6 ALLEN-BRADLEY STATIONARY CONTACTS FOR SIZE 4 STARTERX-67541
GENERAL ELECTRIC TRANSFORMER 893H279AP G2
PARKER SOLENOID VALVE AND BASE H2E15BBL53B
DOERR 1/2HP BRAKE MOTOR 1725RPM STEARNS 36-0001-1 F56FC FRAME601855AA741
HUANGYAN SAHNE NMRV 063 20:1 THREE PHASE ASYNCHRONOUS GEAR MOTORY2-80M2-4208V
LINKBELT 22217EK.C3 ROLLER BEARING 22217LBK/W33/C3
EL HAGIWARA CIRCUIT BOARD C-7704-5020B
SIEMENS BREAKER 3VU1600-0MJ00
SNR CYLINDRICAL ROLLER BEARING NU224E F24
CIRCUIT BOARD ASSEMBLY C000526 006-2B
OSECO PLR 4" 316SS 26.40PSIG RUPTURE DISK 314778 / 1401-1-1
CIRCUIT BOARD 33HBDS2C
Arrow-Hart Plugs AH460C7
BENTLY NEVADA 72711-01-03-02-01-01-15 CIRCUIT BOARD PWA72711BZ
ALLEN BRADLEY SOFT START 150-A05NB SERIES A
FLO-TITE 1" F150 STAINLESS BALL VALVE CF8M/316
ASI CIRCUIT BOARD 600-0046
RELIANCE CARDPAK TRANSDUCTOR 0-49009-14
IN PACKAGING SCOTT INSTRUMENTS GAS TRANSMITTER 4600-IR
GULTON POWER SUPPLY 92036-302
PARKER CYLINDER ND22901-03
TEEL 1/3 HP 115/230 VAC 1 PH JET PUMP 9K648B
Westinghouse FLA Contactor w/120V Coil 701816A-22
ALCO THERMO EXPANSION VALVE XB1019 HW75
URB Cylindrical Roller Bearing NJ 208 EC3
SALVAGNINI 204006 EXTENSION BOARD EXT-AX 2.0
MCGRAW-EDISON CONNECTING ROD & PISTON KIT RSKX234
SKF 22313CCKW33 SPHERICAL ROLLER BEARING 22313 CCK/W33
BW CONTROLS LIQUID LEVEL CONTROL 1500-G-L3-S2
OMEGA OMEGAMATIC PHP-53
DODGE DOUBLE-INTERLOCK EXPANSION BEARING 1-11/16" BORE WITH22168
TOPAZ 2124 POWERMAKER 315-B-12
UNITED ELECTRIC TEMPERATURE SWITCH B5G 7398
GENERAL ELECTRIC 193X295ABG01 CIRCUIT BOARD 36A398551AA-A-X2
CEG .25HP MOTOR MTFHC63B4 /2SP
RHINO Automation Direct SWITCHING POWER SUPPLY PSB24-240
BIMBA PNEU-TURN ROTARY ACTUATOR PT-098090-A1MSTJ
SQUARE D HANGER BAR HORITZONTAL FLATWISE HF-19-F I-LINE-II
FAG BEARING ADAPTER SLEEVE H3124.403
TELEMECANIQUE TSX 47-10 JUNIOR PROCESSOR TSX P47 13
URB SPHERICAL ROLLER BEARING NJ 2312 EMAC3
BOSCH SOLENOID VALVE 0820026026 ISO 352
MORSE 19-1RATIO .34HP 1750RPM ANGLED GEAR REDUCER A88MC1011
WHITEY 3/4 SOCKET WELD 1500 PSI 100 DEG F BALL VALVESS-65TSW12P-1840
GE RELAY 55-201503P1
DYNAPAR TACHOMETER W/ALARMS MTJR1500
GE RRELAY CR120AD04042AA
DURABLA 1" RESTRICTOR CHECK UNIT 5623
FLOWSERVE SHAFT SLEEVE 150S8ACX5-K
WELC-TROL POWER BOARD 71-077-061-002 WELCO
BENTLY VIBRATION MONITOR 7200 RV-R
ALLEN-BRADLEY TYPE EX DC RELAY 200-EX440Z1 SERIES A
PARKER CYLINDER 01.50 SBA2HLRS27MC 7.870
GENERAL ELECTRIC 13.33:1 GEARMOTOR 5KH33GG1067 WITH7GS103DC6FY10
SQUARE D SIZE 0 STARTER WITH ENCLOSURE 8502 SBG-3
WESTINGHOUSE HAGAN 121 LOOP POWER SUPPLY 4111085-001
11/B48 Goodyear Banded V-Belt
6/BX75 Goodyear Banded V-Belt
ROTORK NP17A F05-F07 020 PNEUMATIC ACTUATOR GTWNU.92X90
MITSUBISHI ELECTRIC BASE UNIT Q312B
4/C87 Goodyear Banded V-Belt
17/A47 Goodyear Banded V-Belt
3/CX75 Goodyear Banded V-Belt
5/BX90 Goodyear Banded V-Belt
5/3VX1060 Goodyear Banded V-Belt
16/A48 Goodyear Banded V-Belt
6/3VK530 Goodyear Banded V-Belt
14/A60 Goodyear Banded V-Belt
6/A136 Goodyear Banded V-Belt
6/B103 Goodyear Banded V-Belt
12/B43 Goodyear Banded V-Belt
14/B40 Goodyear Banded V-Belt
8/3V630 Goodyear Banded V-Belt
VICKERS PISTON 0051562
WATSON MCDANIEL 1" SERIES 4063 PRESSURE REDUCING VALVE40-125
ALLEN BRADLEY REFRIGERATION STARTER 775-A03A22
VERSA PNEUMATIC DIRECTIONAL VALVE VAP-3401-181D-NGS
10/B57 Goodyear Banded V-Belt
7/BX64 Goodyear Banded V-Belt
4/BX112 Goodyear Banded V-Belt
4/B160 Goodyear Banded V-Belt
8/3VX630 Goodyear Banded V-Belt
2/CX112 Goodyear Banded V-Belt
3/C120 Goodyear Banded V-Belt
3600-8M-30 Goodyear Banded V-Belt
7/B87 Goodyear Banded V-Belt
13/A66 Goodyear Banded V-Belt
5/3VK710 Goodyear Banded V-Belt
6/3V850 Goodyear Banded V-Belt
PARKER 1/4 TRD MAN VALVE 530931000
BARKSDALE PRESSURE TRANSMITTER 425N1-08
REXNORD PRESSURE REGULATOR 250PSI P55109
ABB ROBOTICS 3 HNP 00043-1 PS 60/4-90-P-LSS-4667 R
ENDRESS+HAUSER CERABAR M Pressure TransmitterPMC45-RC15H6C1DL4
GENERAL ELECTRIC 115/120 VDC. COIL 22D14G24A
ASCO VALVE 821G88E
17/A42 Goodyear Banded V-Belt
FALK 1080T HUB 2.9375 BORE 3/4 X 3/8 KW HUB 0710652
4/3V1250 Goodyear Banded V-Belt
10/B56 Goodyear Banded V-Belt
6/3VX850 Goodyear Banded V-Belt
2/C180 Goodyear Banded V-Belt
AMETEK Drexelbrook SENSING ELEMENT PROBE 300PSI 700-0005-054
4/3VX1250 Goodyear Banded V-Belt
BENCHMARK Hydraulic Pump V10-1S1S-11-2058868
15/A53 Goodyear Banded V-Belt
3/5V800 Goodyear Banded V-Belt
2/5V1180 Goodyear Banded V-Belt
3/B225 Goodyear Banded V-Belt
3/5VX800 Goodyear Banded V-Belt
6/BX74 Goodyear Banded V-Belt
2/5VX1180 Goodyear Banded V-Belt
11/B47 Goodyear Banded V-Belt
5/C68 Goodyear Banded V-Belt
5/B128 Goodyear Banded V-Belt
SKF BALL BEARING NJ 217 M
12/A71 Goodyear Banded V-Belt
FACTORY - GOODYEAR Banded V-Belt Classic Wrapped 10-Bandsbelt 10/A85
FACTORY - GOODYEAR Banded V-Belt Classic Wrapped 10-Bandsbelt 10/B55
10/B55 Goodyear Banded V-Belt
10/A85 Goodyear Banded V-Belt
FACTORY GOODYEAR Banded V-Belt Narrow Cogged 10/3VX425
10/3VX425 Goodyear Banded V-Belt
7/B86 Goodyear Banded V-Belt
7/BX63 Goodyear Banded V-Belt
61CCB142K Goodyear Banded V-Belt
12/3VX315 Goodyear Banded V-Belt
BENTLY NEVADA 72851-04-02-04-01-01-00-00-01 CIRCUIT BOARD RVXY2PWA 72852-01U
IN BAG Analog Devices Iso Frequency Input 3B46-03
ROSEMOUNT SMART TWO-WIRE MICROPROCESSOR TRANSMITTER0081PH/ORP
FAG BEARING RACE NU320E C3
FALK 1025G10 COUPLING SLEEVE 0744983
JOSLYN CONTACT KIT KTM34-1
FAFNIR INSERT BEARING 311KB
WESTINGHOUSE SIZE 5 3 POLE 600 VAC 120VAC COIL 200 HP STARTER2050A15G15
CF FLUID CONTROLS TYPE SW/CH 1-1/2" GATE VALVE HUGM CF8M FIG#CK15FC1.5
FAG Bearing 23024ES
SOR Pressure Switch 66V2-EF3-N3-C2A-TT
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