福建中立恒自动化设备有限公司

1．输入/输出单元

输入/输出单元通常也称I/O单元或I/O模块，是PLC与工业生产现场之间的连接部件。

PLC通过输入接口可以检测被控对象的各种数据，以这些数据作为PLC对被控制对象进行控制的依据；同时PLC又通过输出接口将处理结果送给被控制对象，以实现控制目的。

由于外部输入设备和输出设备所需的信号电平是多种多样的，而PLC内部CPU的处理的信息只能是标准电平，所以I/O接口要实现这种转换。

I/O接口一般都具有光电隔离和滤波功能，以提高PLC的抗干扰能力。另外，I/O接口上通常还有状态指示，工作状况直观，便于维护。

PLC提供了多种操作电平和驱动能力的I/O接口，有各种各样功能的I/O接口供用户选用。I/O接口的主要类型有：数字量（开关量）输入、数字量（开关量）输出、模拟量输入、模拟量输出等。

常用的开关量输入接口按其使用的电源不同有三种类型：直流输入接口、交流输入接口和交/直流输入接口。

常用的开关量输出接口按输出开关器件不同有三种类型：是继电器输出、晶体管输出和双向晶闸管输出。

继电器输出接口可驱动交流或直流负载，但其响应时间长，动作频率低；而晶体管输出和双向晶闸管输出接口的响应速度快，动作频率高，但前者只能用于驱动直流负载，后者只能用于交流负载。

PLC的I/O接口所能接受的输入信号个数和输出信号个数称为PLC输入/输出（I/O）点数。I/O点数是选择PLC的重要依据之一。当系统的I/O点数不够时，可通过PLC的I/O扩展接口对系统进行扩展。

2．通信接口

PLC配有各种通信接口，这些通信接口一般都带有通信处理器。

PLC通过这些通信接口可与监视器、打印机、其它PLC、计算机等设备实现通信。

PLC与打印机连接，可将过程信息、系统参数等输出打印；与监视器连接，可将控制过程图像显示出来；与其它PLC连接，可组成多机系统或连成网络，实现更大规模控制。

与计算机连接，可组成多级分布式控制系统，实现控制与管理相结合。远程I/O系统也必须配备相应的通信接口模块。

3．智能接口模块

智能接口模块是一独立的计算机系统，它有自己的CPU、系统程序、存储器以及与PLC系统总线相连的接口。

它作为PLC系统的一个模块，通过总线与PLC相连，进行数据交换，并在PLC的协调管理下独立地进行工作。

PLC的智能接口模块种类很多，如：高速计数模块、闭环控制模块、运动控制模块、中断控制模块等。

THK HSR20R2UU1000L LINEAR RAIL W/ BEARING BLOCKS (RBD8.1) 7

EVANS COMPONENTS INC pw-12-strps-vem-ptt2n-fd  PW-100M04-F  RBM 3/4"  3/4 100

ALLEN BRADLEY 1609-B 1609-B600N A 120VAC 600VA INTERRUPTIBLE POWER SUPPLY (R1S

SYNERGY 110056 BS 10B-1 25FT ROLLER CHAIN

ARTESYN S30122-K5950-A100-6 EP071312-G POWER SUPPLY (R4S14.5B1)

SQUARE D FAL340601027 60A W/ SQUARE D 9422RNOperating Mechanism Circuit

BAUER BS02-38H/DU05LA4W 2016724 GEARMOTOR (BR5.4)

THK SHS25440L LINEAR RAIL QTY: 2 (BR6.4)

KOA MULTIPLE OUTPUT DIGITAL DELAY MODEL 310D (RBD6.2)

GEORGII KOB KOD568-1B MB/G/S2/S19/S194/SB/X BRAKE MOTOR (R5trolley.3)

THK 1020mm LINEAR RAIL W/ X2 SSR25 GUIDE BLOCKS (BR6.3)

MOTOVARIO WORM GEAR REDUCER  MOTOR

EATON TPC115-10A2-LT Powerware ePDU 10-Outlets PDU

VOLPI INTRALUX 4100 10435 LIGHT SOURCE (rbd3.2)

BECKHOFF AX2526-B200

LENZE E82EV751_2C 13127093 4B37 01697754 INVERTER (r2s8.6)

SMC VQ1000-FPG-C4C4 CHECK BLOCK 8/PK (RS2.2B3)

ISE ELECTRONICS PW-68-102/ CU209MCPB-S31A (C4)

ALLTECH MICROSEAL SEPTUM KIT INCLUDES 1 MICROSEAL NU P/N 80062

FAIRCHILD 1626A Vacuum Regulator (U1.2B2)

320 PCS OF RENATA VBH20321 BATTERY HER ((IN18S3B4))

HP / AGILENT VXI E1328A E1328-66511 REV A 4 CHAIN D/A CONVERTER (R5S10.5B2)

KEYENCE CZ-H37S PHOTOELECTRIC HEAD (BR2.2B16)

SEMITOOL 14843 REV J LOGIC ASSY (BR2.2B8)

NAIS AFP1732 FP1 I/O LINK IT (IN6S4)

DISCO FBPCB-0174 PCB (IN25S1B3)

ALCATEL LUCENT 3AL78818AA 3AL78818AAAC 01 W/ 3AL37558ABAA 03AL37558ABAC 01 (

ALCATEL LUCENT 7450 ESS-M20-1GB-SFP 3HE00233AAAA 01 (R2S2.1B1)

ALCATEL LUCENT 3AL78818AA 3AL78818AAAC 01 W/ X2 3AL37558ABAB 01 (R2TROLLEY.3)

ALCATEL LUCENT 3AL78818AA 3AL78818AAAC 01 W/ X2 3AL37558ABAC 01 (R2TROLLEY.3)

ALCATEL LUCENT 3AL86703AA 3AL86703AAAA 01 (R3S9.7B1)

ALCATEL ABLT-D 3FE21443AA 3FE21443AAAD 04 CARD (R3S12.6B1)

SCHNEIDER 18437 MULTI 9 C120H CIRCUIT BREAKER (R2S6.7B2)

ALCATEL LUCENT STGR-LIM-AP-72 0800-0992-172 REV 6 ADSL BOARD (R3S10.6)

ALCATEL LUCENT STGR-LIM-AD-72 0800-0993-072 -12 ADSL LINE INTERFACE MODULE (R6S1

ALCATEL LUCENT STGR-LIPM-A2P-72 0800-0951-002 008 LINE CARD (R5S8.4)

ALCATEL LUCENT STGR-LIM-E1-24 0800-0949-124 REV -14 INTERFACE MODULE (R5S8.5)

SEACHANGE ADAM REV 3 EVE REV 3 BOARD (R2S4.8B1)

SMC MXS25L-75A-X12 SLIDE CYLINDER

217 PCS OF PANASONIC EEUFC1H102B 1000UF 50 V Aluminium Electrolytic CAPACITOR

COHERENT AVIA-HP 0178-112-00 0178-111-00 BA PULSE BRD Laard (BR2.2B6)

DELTA DESIGN 1666339 REV P MOTOR CONTROL BOARD (RBD6.2B2)

SONO-TEK 06-03645 AUTO-FILL CONTROL  (R3S11.5B2)

BLACK AC057A-R4 4-CHANNEL VGA VIDEO SPLITTER (R3S12.5B1)

NETCOM 813 RM PRO Ethernet Serial Server (R5S4.4B4)

ALCATEL LUCENT 3AL78830AA 3AL78830AAAB 02 (R2S2.1B1)

ALCATEL LUCENT 3AL86606AA 3AL86606AAAB 01 (R3S9.7B1)

ALCATEL LUCENT 3AL86712AA 3AL86712AAAA 01 (R3S9.7B1)

ALCATEL LUCENT 7450 ESS-M10-1GB-SFP-B 3HE01532AAAA 01 (R2S2.1B1)

HONEYWELL FPG 060-C735-03 TRANSDUCER (BR6.3B5)

SMC EMXS20-50 SLIDE TABLE (BR2.4B6)

HI-SPEED P2-80-121 REV E CIRCUIT BOARD (IN27S3)

ASC DSP1 DISTRUBITION SURGE PROTECTOR (R5S14.3B4)

ALARIS MEDICAL 1000EL00705 ISSUE 2.0 ASSY 1000EL00707 (R3S1.2)

ASCEND COMMICATIONS STGR-TM-OC3-M1 0800-0920-001 REV 2 TRK MODULE (R6S2.5)

ALCATEL LUCENT STGR-LIM-AP-72 0800-0992-172 007 ADSL BOARD (R6S7.5)

ALCATEL LUCENT STGR-TRAM-02 0800-0985-012 --3 2-PORT CONTROL MODULE (R3S6.4)

ALCATEL LUCENT STGR-LIM-AD-72 0800-0993-072 -14 ADSL LINE INTERFACE MODULE (R5S1

ALCATEL LUCENT STGR-TM-OC3-2 0800-0920-002 -G (R5S8.4)

ALCATEL LUCENT STGRLS-TM-OC3-2M 0800-0942-202 -D TRK MODULE (R6S5.6)

TEL TOKYO ELECTRON E280-000008-11 E2U215-11 DHUB3 IT (BR5.2)

SIEMENS SA10946482 REV 05 WASH DILUTION ASSY (R04.4r)

Kohzu Rotary RM07-03 and Kohzu Linear X Y Stage

ST5-Q-EN Applied Motion Products , 5000-177

RKC INSTRUMENTS CVM-6A POWER CONTROLLER (R5S3.5)

RKC INSTRUMENTS DPL-A*1-CS8/CE Z-423 FAREX SR MINI SYSTEM (R5S7.3)

NORGREN 2X2912 SOLENOID VALVE W/ HONEYWELL MLH150PSB06A  GAUGE SENSOR w/ v

ELODRIVE BN-15P1E -S067 ACTUATOR

FAG 6030-2RSR DEEP GROOVE BALL BEARING (r1s2.7)

TOKYO ELECTRON TEL WAFER SEARCH LED ASSEMBLY - 3287-005011-11

OMRON SYSMAC C40H-C60R-DE-V1 /WITH CONTROL BOARD VIEW ENGINEERING 10000-503 (R4S

100 PCS OF HARTING 09653226803 D-Sub plug (R4S5.5)

NAIS AFP33103EM FP3 OUTPUT IT

SMART A660140375 EXHUAST GAS COOLER (R5S5.2)

GALIL MOTION ICM 1460 / AMP 1460 REV B Circuit Board Module W/ Advanced Motion C

HIRSCHMANN RS2-FX/FX RAIL SWITCH ((IN4S3B2)) (IN4S1B1)

SIEMENS (X7) 6ES7193-4CA40-0AA0 W/ (X2) TM-P15S23-A0 W/ (X7) TM-E15S26-A1

MBRA MB-DESKTOP STATIC ELIMINATOR 1500522 (IN8S2)

ITEK MIYACHI series 70 weld head control (RBD7.2)

ESR POLLMEIER MR5470.4151 MMSI-070H-045R-320S-14S0-100 AC SERVO MOTOR (IN20S1B4)

HITACHI SJ200 SJ200-007NFEF INVERTER (IN21S2) (IN22S2)

ABB KP9-113 1SFA616199W1113 RESET BUTTON QTY: 100 (IN24S2)

Portwell B930A512AB1D712820 RUBY-D712VG2AR 003 BIOS R1-00-E6 MOTHERBOARD W/ CPU

APTECH AK1215B 4PL 8 8 0 0 BRASS HI FLOW REGULATOR W/ X2 SWAGELOK FITTINGS (U1

FISHER SCIENTIFIC ACCUMET XL150 PH/MV BENCHTOP PH METER (R3S8.8)

RAPID-AIR CORP MS2 SERVO FEEDER (R3S10.4)

KOB NWS Level switch NWS-R25200 (R1S14.7B2)

FANUC A06B-0115-B075#0008 AC SERVO MOTOR (R6S5.5B4)

MKS MASS-FLO METER 179A24CR3BM (R6S5.5B4)

FUJITSU SIEMENS W2631-W52-X02 W2631-W52-Z2-03-36 MOTHERBOARD W/ CPU  RAM

MTA 1-0014-01-000-20 PS 12-50 CYLINDER ((IN8S2B1))((IN7S3B4)

ORIENTAL MOTOR 5GU50RH GEAR ((R1S-1.4))

ORIENTAL MOTOR PK564AW-T20 5-PHASE STEP MOTOR (BR2.3B4)

KOLLMORGEN SEIDEL SERVOSTAR 443M-S S443M-SE (IN22S2)

MELLES GRIOT 4706788 360mm OPTICAL STAND W/ X2 STAND CLAMPS 65mm x 65mm beds

FUJITSU D2836-S11 GS 2 MOTHERBOARD W/ PROCESSOR  HEATSINK (R5S1.3)

VIEW ENGINEERING 1000-301 WIRING PANEL 8100 W/ OMRON SYSMAC C40H-C60R-DE-V1

SMC SS5V2-W10S1QWD-12B-C6-D-X160US MANIF STATION (R5S14.4B1)

NUMATICS FLEXIBLOCK MANIF X2 081RD400J / X3 081SS415M / X2 082SA415M / 081SA4

MULTIVAC SM88.2.18M6Z233 85.811.4101.05 STEPPER MOTOR (r3s7.7)

LINAK CB9182-01 CP 5786M (R5TROLLEY.5B3)

HAAS-LASER 18-12-04-BS V1.4 CONTROL BOARD (R1S-1.7B1)

PHILIPS C5-240R Curved Array Ultrasod Transducer Probe (R3S14.8)

PHILIPS C5-2 453561316252 CONVEX ULTRASOD TRANSDUCER / ACTIVE ARRAY (RBD2.3)

QMC 1473-ME2793 MOTOR WITH/ 77822-003 ENCODER

MITSUBISHI HF-KP23B 200W AC SEVO MOTOR W/ VRGS-11B60-200-TE1 REDUCER (R4S3.1)

ROFIN 141200399 FILTER (R6SO.6)

TOKYO ELECTRON TEL WATER LEAK  (MOTORSHELVES)

VARIAN 391713401 PENCIL FILTER (R4S10.5B5)

SIEMENS 6ES7312-1AE14-0AB0 CPU MODULE (R1S8.3)

SOLID APPLIED TECHNOLOGIES SMARTSCAN 25 S25-S15V-7G8AC Ultrasonic level transmit

JENAER ANTRIEBSTECHNIK TD1500-85/105 TRANSFORMER 1500VA VDE0550 (R3S1.1)

THK L= 106cm LINEAR RAIL W/ (X2) THK GSR25T NNB linear bearing

ODRIVE S37 DRS71S4 GEARMOTOR (BR5.1B2)

PLAST-O-MATIC PRH075V-PV W/ ASHCROFT AISI 316  10PI-0 GAUGES W/ SWAGELOK 316-RF

BALDOR WDM3538 MOTOR (BR5.6)

CISCO 7200 SERIES VXR CHASSIS W/ NETWORK PROCESSING ENGINE 200 73-2441-03 D0 W/

LENZE SSN31-1UHAR-056C22 SERVO MOTOR W/ sn31-1fhar w/ 260mm worn screw (Rbd3.2)

TAM TYTP -2kva 6320516 TRANSFORMER (R3S9.2)

BUSCH SV1003D000 PLZZ VACUUM PUMP W/ HANNING E5YZ2B-046 MOTOR (rs4.1)

THK HSR12R3UUM-390LM LINEAR RAIL (BR2.2B12)

GEMS 194764BSPP RFO LEVEL SENSOR (IN10S1B3)

HP Agilent 3478A MULTIMETER (tnpallet)

 HP Agilent 3478A MULTIMETER (tnpallet)

ALCATEL LUCENT 3AL78848BA 3AL78848BAAM 01 (R3S9.7B1)

ALCATEL LUCENT 3AL78848BA 3AL78848BAAB 01 MODULE (R2TROLLEY.1)

Texas Instruments Analogue Switch ICs TS5A12301EYFPR.  lot 3000 pieces

YASKAWA SGDV-R70A01AY845AB SERVOPACK (R3S8.3)

LONDON ELECTRONICS LTD F4-4C-H-0-0-0-R-AC-2-0 DISPLAY (RBD7.2)

MURATA RPER71H474K2M1C03A CERAMIC CAPACITORS QTY: 1800 (U7.6)

VARIAN PCG-750 PCG750KF16 Diaphragm Gauge (R2S6.7B2)