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。

 STAHL MUSHROOM EMERGENCY STOP 8040/ 11E-M100-LK03 ..EACH

MOTOROLA MJ100BX100 POWER MODULE

SANYO DENKI 103-546-5345

SETEX 22779 BG 300 002 533403 SP 50

FABORY SMC M8-1.25X110HS HEX SOCKET CAP SCREW M8X110MM LOT OF 81

84-P30671C001 REV A 01-P30670C00 AMPCB-01-P30670C002 REV.F PC200210-CNV-2

ASCO SPARE PARTS KIT 4000018650 81-827

BENEDKIT  JAGER K2-07A22 24V 50-60HZ

PYREX 4442-250

TRI-SEN SYSTEMS 86-4574/75 REV.A/B

EATON VICKERS DG4V-3S-6C-Y-M 507848 24V DC 30W ,,, AS IN PICTURE

OMRON INVERTER 3G3EV-AB002MA-CUES1 200V CLASS 1PH

NIB SMC Corporation IF300-N06-00 shly

APPLIED ENERGY SA3515A

APPLIED ENERGY SA5167-R

NNB Applied Energy SA5003 REV D

ABB BAILEY DCI SYSTEM 40PB3201A A-Loop I/O Board ... MODULE

ECONO-PICK c00439 OPERATOR MODULE

NIB ILLINOIS 403-6539 BORE HOLE DRILL 2-1/2" HOBB HIGH SPEED

DANOTHERM F2 21153227411 CAH 27R

nnb BURGESS M2V3HM6SLR LIMIT SWITCH

NIB TOROR TRILOBE SRU3W 3149557400381 ... EACH

OMRON CQM1H-CPU51 PROGRAMMABLE CONTROLER CPU IT 24V DC

NNB GE AUXILIARY RELAY 12HGA26A2 DC 48V GEI-28801 GEF-2623F

MICROWAVE FILTER 616 5267 003 3 CELL FILTER

Reliance Electric Circuit Board Assembly PCB P/N 802288-81A

OMRON C200H-OD21B OUTPUT IT

NIB DETCON 912-010040-100 HS-12 0-100 PPM MOD 12

IDEC IZUMI CORP. PSR-AD0712 POWER SUPPLY 100-240VAC

PCI-5S3 4 Slots PICMG Bus Passive Backplane

DATALOGIC DS2100 VOLT 10-30DC WATT 3 DS2100-1010

 M-SYSTEM A-IT DC ALARM ACV-6111-F

ABB METRAWATT GTR0212 Temperature controller

PARKER 05R213AD

NANALEM HEC-03A A-4V 306B 6

HONEYWELL HVB16VDA3 DISTRIBUTION AMPLIFIRE

SPECTRE SENSORS INC. UL440 5000 psi

HP 8500 8550 formatter assembly [C7096-60101][C7091-80001][C4148-60001]

NIB HOFFMAN CP5560G CONCEPT DOOR PANEL

SIEMENS CIRCUIT BOARD 720050308 1 720050204 S-C-P2

SANREX GK-3813

THURMAN SCALE TPS-2001-1 18361 H583379CL

ACTRION III 681-301042 ..... EACH

MODUS D11225 REV B PTC 1293 ...... EACH

Saders Opti-Set Switch M0E-N0M12 With Kit M0k-00100 CRANE

GEAR TRAIN 64 BP 100168-002Y ASM G/T 5/8-1 HP 64 RED

192-179 0.88" 22.5MM 34.5CM 3 17/32" Aluminum Pump Impeller

GENERAL ELECTRIC GEM150MLTLA3D-5/2 86718 ....

TOSHIBA INVERTER VT130G9U4110

OMHART 940-270-89 S-C5006G .. AS IN PHOTO

INTELLENT 10/100 TO 100BASE FX MULTI MODE SWITCHING CONVERTER

SMC VPW 2145 SOLENOID VALVE AC 110V 50/60HZ, PLEASE CHECK PHOTOS FOR PIPE SIZE

INVALCO 8500A

ITC MC-12 120V 60HZ 15AMP

LINCOLN S-10773-47 INSULATING WASHER

HOLOPHANE transformer kit WITH Z93P2455MR AEROVOX  HOLOPHANE R1B061 120V

RE108-CG12Y601 0V12 0738

Rexroth Motor MNR: 3 842 541 310 3P 1.7KW

NNB Duramaster Cylinder Model Ds3206mp2b1 LX ..... EACH

E54ha2.2b Module

SCHNEIDER SQUARE D 52011-038-50 Main Control Board

SCHNEIDER SQUARE D D52011-005-50 POWER INTERFACE

ATU TSC-251C UV FLAME SENSOR ... EACH

NNB ANIXER WIRE F16027 1015BC-16/26-2 16 AWG 26/30 BC 2/64 PVC LIGHT BLUE 1000FT

GENRAL ELECTRIC, IC93MDL645E, INPUT 24VDC 16PT POS/NEG LOGIC

ALLEN-BRADLEY 22DJ4-4000 SER. B PHOTOSWITCH CONTROL MODULE

Baldor 1 HP Inverter Drive VS1MD21

NIB PULSOTRONIC Altech 9966-1302 Proximity Sensors

NIB Asco SC8353G061 120 V AC

NNB Velan 3/4" SW Globe Valve Class 2680 Y 6700PSI HF A105N 1" W-9076Z-02TS sh

SEIKI CIRCUIT BOARD MGDC 16-12-00-00

NNB Hitachi Seiki 17-03-00 S3-SPG CNC Board

HITACHI SEIKI CIRCUIT BOARD 06-19-00-00 A

CONTROLWARE FLOPPY DISK SOFTWARE DISKS .. SET OF 6 ..

Microscan FIS-0710-0019 MS-710 Bar Code Scanner

kvm-Extender eku221c Never  Before

Eksigent eks-PS-250 DC Power Supply

MORSE B8171 GCT

MORSE B8171 GC M5T

NNB Fanuc Transformer A80L-0001-0430

RELIANCE ELECTRIC 57421-3A 574213A INPUT MODULE CARD

NIB MODICON AS-B236-501

NIB 750442-2 - TE Connectivity / AMP - 7504422  of 100

METERMASTER RM 450TB/ 15-20 vdc 450TB 115 0-20 VDC NON LINEAR SYSTEM

NNB MTI 4407

NIB trerice steam trap # 0A 3/4" 100 PSI

NNB BINDICATOR SA-1 ROTO GUARD MOTION INDICATOR 2HP 20A AMP 480V-AC SENSOR

SWAGELOK SS-FL4VF4VF4-55H FLEXIBLE METAL 321 SS Braid, 1200 to 1500 psig

SEI RESISTOR 20000 OHMS 20K 3023 98469 WT/1000 ...APROX REEL 5000

NIB Heinemann Electric CF3-Z320-1 CIRCUIT BREAKER .... EACH

NIB VOGEL 179-990-381

NIB GENERAL ELECTRIC 117C4538P002 DS07-375-059 PLUG  RECEPTICLE INCLUDING PINS

NNB MOTOROLA MR1235FLR

CONNOMAC CABLE 4314-12FC 4 POLE 12 FT FEMALE PLUG

NIB ITT PURE-FLO Diaphragm 3/4-N-PN-36-M7-A208-SP2S .75 N PN 36 M7 A208 SP2S

NIB ITT PURE-FLO Diaphragm Valve 3/4-N-PN-31-M7-A208 .75-N-PN-31-M7-A208

NNB ITT PURE-FLO Diaphragm Valve 1NPN36M7A208 1 N PN 36 M7 A208 ... EACH

NiB ASHCROFT G2 PRESSURE TRANSDUCER G27M0210M15000#G 5000 PSIG 10 VDC

RONAN X54-216L-K-400-1800F-B 4-20MA

RONAN 18-3809 X54-216L-J-0-500F-B 0-TO 500F 4-20MA

RONAN 18-3809 X54-216L-J-100-300F-B 4-20MA

RONAN 18-3809 X54-216L-J-0-200F-B 4-20MA

HONEYWELL PROPORTIONAL BAND CALCULATOR

SIEMENS 3TH-7BG4 2N02NC 20A/240V 50/60HZ 60947-5-1

VOLVO 85109297 WIRING HARNESS

ALLEN-BRADLEY 1492-F1209 TERMINAL BLOCK SER.C 300V 25A MAX

BAIRD 2308 1/4" NPT PRESSURE PROBE

MSA LIRA GAS ANALYZER AMPLIFIER 3000 PREAMPS 458406 REV.11

ACTUATOR VALVE PNEUMATIC EXPOSED 41P639 V-3000-1

LINOSAY 503-F OR 603-F

ABB CAL5-11 ABB AL16-30-10 48 VDC

HITACHI AC REACTOR HRL010L 9028352

VERSA ENGLEWOOD VBH-3203 200VAC

VM VAC'S-TRON Z-80A-1-E 2H 10-77 0-10V DC TRANSDUCER 1.0000 TORR /- 15V DC

KTI Networks 10/100M 8 Port Dual Speed Hub Model KF-8MD KF8MD

NIB IPTCI BUCNPP 202 10 5/8" SET SCREW PILLOW BLACK OXIDE NICKEL PLATE BEARING

PERKIN ELMER 1720 OPTICAL SCREW PRE AMP L116 0868 A L116 2068 ISS 1

PERKIN ELMER OPTICS MODULE CONNECTOR BD 1720 L116 0856 A TEL C 87 07

IBM 7594 Industrial Computer with 12" Touch Screen .. no power supply

ER SIDE

B  G P9-41CB 8.5" Outlet - Outlet. 1-1/16" Water Inlet Diameter. 1-1/16" Water

OVATION ANALOG INPUT 20MV/50MV/100MV 5X00070G34 28808114480 0972987/1

MAESTRO ULTRASONIC SENSOR RS-485 305M/1000FT TRANSMITTER

MDA SCINTIFIC W/O 26423-0018

CIRCUIT BOARD 41-11955-1 41-1983-1 B

MDA 102622-15 S16 V1.9 S-P2 15C8 DIG 8107 870222 ESS.M.O 3495 870221 2

MA AIF 3571 872268 1 872267 A

MDA 872494 15 100105 486-9543 9631 870385 2

MDA 872562 1 A0 3941 872561 A

LTX 12-8V PWR SUPPLY DRAWER SIG I/0 T PCB-1 94V0 1504 860-2852-01 AA

1SNA115359R0200 ENTRELEC M6/8.STA Screw Clamp Terminal Blocks 5 Brand

PORT ELECTRONICS INC Q2000-DCR7-2 MISSING FACE PLATE