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。

以下链接皆有货

Parker Sporlan 961-651D Micro Thermo Technologies Case Controller

Parker SRL2205QLBPG2S201 SR Series Filter for Feeding Filtered Oil 250 L/min

Parker T6CM B10 1R01 C5 Denison Vane Hydraulic Pump

Parker TB Series Low Speed High Torque Motor 4 Bolt 1" Keyed Shaft 7/8-14SAE

Parker TB Series Low Speed High Torque Motor TB0130AS110AAAA

Parker TB Series Small Frame Low Speed High Torque Motor TB0065as100aaaa

Parker TB Series Torqmotor 4 Bolt 2.5 in3/rev 1" Keyed Shaft TB0045FS100BBFZ

Parker TB Series Torqmotor TR0165FP130AAAB

Parker TB0036AS210AAAC TB Series Hydraulic Motor

Parker TB0050AS090AAAA TB Series Low Speed Hydraulic Motor

Parker TB0050FS100AAAA Hydraulic Motor 21119 AD 6825

Parker TB0260FS100AAAA TB Series Hydraulic Torqmotor

Parker TBPAT Directional Hydraulic Valve Coil DC24V 40018938

Parker TE0050AS100AAAB Torque Motor 1" Keyed Shaft 12/15GPM 45/57IPM 7/8-14 SAE

PARKER TE0365AS090AAAA HYDRAULIC MOTOR

Parker TF Series Torqmotor TF0280EW450AAAB 280CC 31.75mm Shaft

Parker TG Series Hydraulic Motor TG0530US190BBDL 20GPM 213RPM 2500PSI

Parker TG0140MS1M0ABCB Hydraulic Motor 3012-NR TG Series 18923-131

Parker TG0140UX460AAAA Hydraulic Torque Wheel Motor TG Series

Parker TG0240ZS060AAAA TG Series Hydraulic Torqmotor LSHT

Parker TG0310LS080AAKR TG Series Hydraulic Lawn Mower Wheel Motor

Parker TG0335HS030AAAB TG Series Hydraulic Motor

Parker TG0405US081AAMF Orbital Hydraulic Torque Motor Tapered Shaft 405cm3

Parker TG0475MM050AAAA TG-Series Hydraulic Torqmotor

Parker TG0785US050AAAB TG Series Torqmotor 1-1/4" 14 Tooth Spline 300 Bar

Parker TH0530US360AAAA Hydraulic Motor 528/32.3, 7/8-14 SAE LSHT Torqmotor

Parker THO530US360AAAA Hydraulic Gear Motor 4 Bolt 15321 AB 7699 Series TH

Parker Two-Way Ball Valve 12A-B8LJ-SSP 3/4" A-Lock Compression

Parker UHP High-flow Tied-Diaphragm Pressure Regulator 1700PSI Up To 3/4"

Parker VA35-A880 Inlet Valve 348-9175-005 Direction Control Valve W/ Seal Kit

Parker Veriflo Surface Mount Pressure Regulator 54026265

Parker Veriflow Model 959100W3PXFSMIM8120EX 1/4"*7KG/cm2*300LPM*EP

Parker Wireless SensoNODE Humidity Transmitter Gen4 10Bar/150PSI 1/4" NPT Male

PARKER ZETA 6104 CP*ZETA6104-12788 INDEXER DRIVE

Parker-Hannifin Torque Link Hydraulic Motor TGK0405MS200AAAA

Parlec C50-15SM4 Shell Mill Holder CV50 Taper Size 1-1/2" Pilot D 4" Projection

Parlec C50-PC6-12 Modular Tool Holder Boring Tool CAT50 Taper Shank PC6 11.38"

Partial  Genuine Ricoh Toner Black 842477 Cyn 842480 Mag 841753 Yel 841752

PARTIAL Genuine OEM PACARR Exhaust Manifold 2406414 For MX-13 12.9L SEE DESC

PARTIAL KIT LM-UTV CAN-AM 64" MAVERICK X3 High Clearance Radius Rod Kit SEE DESC

PARTLOW N4101 Z270000 DIGITAL TEMPERATURE CONTROLLER

PARTS - NEIHOH ASTM-D1403 AUTO MICROPENETROMETER

Partspin Food Warming Equipment Sensor Service Kit No Probe Phtt

Pason Systems VSP200 TRailer Access Point VSP005 SEE DESC

Pass & Seymour 1 Gang 1 Duplex TradeMaster Wall Plate White TP8-W

Pass & Seymour 664-WG 4-Way Toggle Switches 15A 120/277VAC White

Pass & Seymour Ceiling Fan 4" Round 5/8" Shallow Pan Install Box 77700w

Pass & Seymour Duplex Receptacles 20A 125V Specification Grade Ivory

Pass & Seymour Hospital-Grade Receptacles 20A 125VAC Self Test Ivory

Passenger Right Side Performance Headlight for 2004-2017 Volvo VNL SEE DESC

Passenger Seat Cover Black Leather Red Stitch for 2018-23 Jeep Wrangler Rubicon

Passenger Side CPP Front Brake Set 13" Rotor For 1973-1977 Chevelle SEE DESC

PastaBiz 016 ILMP3 3.5MMSpaghetti Die For P3 Pasta Extruder

Pathway Connectivity PWENC SML VER eDIN System Enclosure 1105, 10.5x 13x4.5"

Patriot H8040-1 Lakester Header for Small Black Chevy 1-5/8" x 3-1/2"

Patton High Pressure Divider Valve Block Assy K23 Max 7500 PSI for Compressors

Paul Yaffe H00905 Chrome 1-1/4" Bagger Monkey Bars 14" For 1999-2017 Harley

PAVEX 72BA0408 RTS 72V 40A T7F2B DT20V 10V 40A MODULE

PBA 688264-423 PB689998-004 BOARD

PBC Linear FLAC40 Closed Self-Aligning Compensated Linear Plain Bearing 2.5" ID

PBC Linear Wheel/Flange Plate HVB-056/HVP2

PBI Pacific Best Engine Coolant Radiator PR13775A For 2019-2020 Kia Forte

 PCS COMPACTPCI SRCS-1 S-D4039 CONTROL CARD

PE Automotive Wheel Hub & Bearing 016.298-50A For Mercedes 140mm x 199mm

Peakworks Tie Back Leading Edge SRL Class A 310 LB Capacity SRL-54954-9TB

PEAVEY M-3000 MK V MARK V SERIES POWER AMPLIFIER

Peer Tillage Trunnion Bearing Unit GW211PP25

PEER W211K56 7L Tillage Trunnion Bearing Unit

Peer W211K58 Gang Disc Tillage Trunnion Bearing SEE DESC

PELCO NET101R NET ETHERNET SYSTEM RECEIVER

PELCO NET101T PEL-NET101T Single-Channel Video Transmitter Ethernet Connection

PELCO PP4348 Rooftop Parapet Camera Adapter Mount NO BASE SEE DESC

Pelican Manhole Gasket MHG-3513-FS 20" Betts Compatible FEP/SIL

Pemko Flat Track Sliding Wood Door Hardware System BLD-FT-01 SEE DESC

Pengo Pilot Bit Fishtail,No Teeth, For Drilling Bucket 4" Shank/Shaft

Penn Liquid Flow Switch Type 4 Vapor Tight 24/240V 50/60Hz 15 Amp

PennEngineering Spring Loaded Large Knobbed Panel Fastners PF11-M6-2

Pentair 154641 Closure Kit With 6" Buttress Thread For Triton Ii Models Tr40-60

Pentair 618016 Intellibrite Architectural White 22" Spa Light 12V 18W SEE DESC

Pentair 8.5" Triton Ii Buttress Thread Closure Kit 154856 for TR40 TR50 TR60

Pentair Aurora 6761747208 Ring Wearing Case 400, 6-1/8"OD 5-1/8"ID

Pentair Aurora Pump Wearing Rings RNGIMP 6761059208 for Pumps

Pentair Everpure Claris XL Water Filter Cartridge EV4339-13 Quick Connect

Pentair Myers 4" 20GPM 1.5HP 230V 2 Wire 1PH Submersible Predator Plus Well Pump

Pentair P43B0010A2-01 Submersible Well Pump 1HP 10GPM 230V B10P4MS10231-03

Pentair R171215 Rainbow HC3315 Commercial High Capacity Chlorine/Bromine Feeder

Pentair Shurflo 115VAC 60HZ 1 Max Amp Water Boost Replacement Pump 8025-933-399

Pentair SHURflo 2088-564-144 Delivery Pump 3GPM 45PSI 230VAC

Pentair Shurflo EV3128-18 Double Headed Pump MRS-600HE 8008992388 24VDC

Pentair Sta-Rite 4" Submersible Pump & Motor 1 HP 20 GPM 2 Wire S20P4JP10221-02

Pentair Sudmo 2343806 Single Seat Valve Control Assembly S370-SE-E-15 T-XX-XX-AS

Pentair Westlock Silver Bullet Position Speed Limit Switch 316SB-STN-004-AAA

Pentair XE Series 4" Submersible Motor 3HP 230V 3 Phase 3 Wire SEE DESC

Pentek Pentair P43B0010A4 4" Submersible Motor 1.0 HP 460V 3-Wire 3PH

PEPPERL & FUCHS WCS3A WCS3A-LS310 READING HEAD

PEPPERL & FUCHS WCS3B WCS3B-LS257 199290-0021 READ HEAD

 PEPPERL FUCHS A5511360 202C03E SENSOR 10-30VDC

Pepperl Fuchs PEP RLK39-54/31/40a/116 Retroreflective Photoelectric Sensor

Pepperl Fuchs Ultrasonic Sensor UB1000-18GM75-E01-V15 204533

Pepperl+Fuchs 6000MANDV01 Manifold Assembly For 6000 Series Type X Purge System

Pepperl+Fuchs IQT1-F61-IO-V1 Read/Write Station Proximity Switch 13.56 MHz

PEPPERL+FUCHS MPD4HD 454385 DIFFUSE MODE SENSOR

Pepperl+Fushs 133053 Ultrasonic Sensor UB500-18GM75-E5-V15

PERCEPCRON VME GRAPHER VGA GRAPHICS SYSTEM 495-0092

PERCEPTRON REV G 147 SERIAL BOARD 495-0102-01

Perfect Stop 89X17970B Semi Loaded Brake Caliper for 2011 Ford F150

PerfectVision Universal Tinned Ground Bar 4x24" PV-GB0424-T

PERKIN ELMER 089960 BODENSEEWERK GMBH MODULE

PERKIN ELMER 610 600 SERIES LINK CHROMATOGRAPHY INTERFACE

PERKIN ELMER 610 600 SERIES LINK CHROMATOGRAPHY INTERFACE #2

PERKIN ELMER AS 8300 AUTO SAMPLER

PERKIN ELMER BURNER CONTROL 057-0600 117V 50/60HZ

 PERKIN ELMER FXQG-33-1.75 NSMP

PERKIN ELMER LAMP MODULE MVS-7020 90-230 MACHINE VISION STROBE - PARTS

Perlick 100811-2 K05-A Door Mount Hinge 110 KG 4x6x9"

Perlick F38304SS Stainless Steel Sampling Valve with 1/2 TRI-CL

Permco 1-1/4"Hydraulic Dump Pump 577-00886-20 5770088620

PERMCO 2100 Series Hydraulic Gear Pump 1" Shaft M2100B783AX23XI17-32AHI12-1

Permco 592-00884 Gear Pump 23GPM 2500PSI ORB Port P5151A224NMZK20-54

Permco 6070 Pro Hydraulic Motor Drive Vacuum Motor - M5151A731NMZK20-00

Permco DM-25/ DM-640-25 2000PSI Dump Pump For Heavy Dump Trucks

Permco P124A082AKZA07-81 Small Hydraulic Gear Pump Series 124 3500 PSI

Permco PEK8 Hydraulic Pump 3000PSI 2400RPM 7/8" 13 Tooth Shaft Bolt Mount

Permco TruckPro 36B467MNZA2500 Gear Pump Assembly HH36B467MNZA2500

Permobil Comfort INFERIOR ONLY Foot Single E0954 Bariatric Gell & Bolt/Clamp on

Perry Slingsby Systems DWG-D75125-001 Reverse Phase Light Controller

Pewag HSW 26 Grade 100 Eye Sling Hook 26,500KG Capacity For 1" Chains

Pfannenberg 11622153115 Filter Fan 115VAC Light Gray Grille

PFC Brakes PFH076910 Front Brake Pad Set for Chevy Hino Thomas

PFC PFH39019320 Rear Disc Brake Rotor for 2010-2018 Blue Bird Vision School Bus

PFC Rear Disc Brake Rotor PFH39019320 for 2010-2018 Blue Bird Vision School Bus

Pfeiffer SplitFlow Vacuum 310 Split Flow Turbo Pump PM P05 570