福建中立恒自动化设备有限公司

一、摘要 PLC是一种专门在工业环境下应用而设计的数字运算操作的电子装置。

它采用可以编制程序的存储器，用来在其内部存储执行逻辑运算、顺序运算、计时、计数和算术运算等操作的指令，并能通过数字式或模拟式的输入和输出，控制各种类型的机械或生产过程。PLC及其有关的外围设备都应按照易于与工业控制系统形成一个整体，易于扩展其功能的原则而设计。在工业生产的各个领域，机械加工企业为了提高生产效率，采用机械化流水作业的方式，对不同类型的零件分别组成的自动生产线。随着产品机型的更新换代，生产线承担的加工对象也随之改变，这就需要改变控制程序，使生产线的机械设备按新的工艺过程运行，而继电接触器控制器系统是采用固定接线，很难适应这个要求。大型自动生产线的控制系统使用的继电器数量很多，随着PLC的应用日益普及,其使用方法简单,便于掌握,且可靠性,抗干扰性很强,自身具有完善的功能.模块化的结构,使其在工业生产线上的应用越来越广泛。

　　发展趋势：1.向高速度、大容量方向发展

　　为了提高PLC的处理能力，要求PLC具有的响应速度和更大的存储容量。目前，有的PLC的扫描速度可达0.1ms/k步左右。PLC的扫描速度已成为很重要的一个性能指标。

　　在存储容量方面，有的PLC可达几十兆字节。为了扩大存储容量，有的公司已使用了磁泡存储器或硬盘。

　　2.向超大型、超小型两个方向发展

　　当前中小型PLC比较多，为了适应市场的多种需要，今后PLC要向多品种方向发展，特别是向超大型和超小型两个方向发展。现已有I/O点数达14336点的超大型PLC，其使用32位微处理器，多CPU并行工作和大容量存储器，功能强。

SIEMENS PAC3200 ENERGY METER 7KM2112-0BA00-3AA0 240V WITH 7KM9300-0AB00-0AA0

SIEMENS PM240-2 SINAMICS POWER MODULE 15KW 6SL3210-1PE23-3UL0 FREQUENCY MADE UK

SIEMENS PM-E POWER INTERFACE MODULE 6ES7 138-4CA01-0AA0

SIEMENS PM-E POWER INTERFACE MODULE 6ES7 138-4CB11-0AB0

Siemens PTM6.2I420 Point Module

SIEMENS PXC100.D AUTOMATION STATION BACNET 24V

SIEMENS PXC12-E.D AUTOMATION STATION WITH 12 DATA POINTS

Siemens PXC22.D Automation Station WITH 22 Data Points PXC22-D 24V AC

SIEMENS PXC22-E.D AUTOMATION STATION WITH 22 DATA POINT PXC22

SIEMENS PXC64-U AUTOMATION STATION 24V AC

SIEMENS PXE-CRS BUILDING AUTOMATION - RUSTED

SIEMENS PXE-CRS SYSTEM CONTROLLER 24VAC

SIEMENS PXM40 10.1 INCH TOUCH PANEL HMI S55623-H119 24V AC/DC

SIEMENS QAM2120.040 DUCT TEMPERATURE SENSOR 400MM LG-Ni1000

SIEMENS QFM2171 TEMPERATURE INDICATING EQUIPMENT 170409D

SIEMENS RWR462.10 SUPERHEAT CONTROLLER 24V

SIEMENS RXC32.1 CONTROLLER WITH GLB 131.1E ACTUATOR 24VAC

SIEMENS RXC32.1 ROOM CONTROLLER 24V

SIEMENS SC 6002XL ENG INTENSIVE PATIENT MONITOR 59 46 798 E551U

SIEMENS SCALANCE X208 6GK5208-0BA10-2AA3 ETHERNET SWITCH

SIEMENS SENTRON PAC3100 7KM3133-0BA00-3AA0 100-240VAC/110-250VDC

SIEMENS SENTRON WL 3WL9111-0AT20-0AA0 DIGITAL OUTPUT MODULE

Siemens SIBCOS M1300-0-0

Siemens Signal Device M72145

SIEMENS SIMADYN D 6DD1681-0GK0 CONVERTER SU13 50 TERMINAL

SIEMENS SIMATIC 6EC1620-0A SIMATIC C1 MODULE

SIEMENS SIMATIC 6ES5 454-4UA13 DIGITAL OUTPUT MODULE

SIEMENS SIMATIC 6ES5 482-4UA11 DIGITAL INPUT OUTPUT MODULE

SIEMENS SIMATIC NET CP 6GK 7343-2AH00-0XA0 COMMUNICATION INTERFACE MODULE

SIEMENS SIMATIC PG 615 OPERATOR PANEL 6ES5 615-0UA11

SIEMENS SIMATIC PS 307 6ES7307-1BA01-0AA0 POWER SUPPLY 24VDC 2A

SIEMENS SIMATIC S5 6ES5 421-8MA12 DIGITAL INPUT MODULE LOT OF 2 UNIT

SIEMENS SIMATIC S5 6ES5 440-8MA21 DIGITAL OUTPUT MODULE

SIEMENS SIMATIC S5 6ES5 441-8MA11 DIGITAL OUTPUT MODULE

SIEMENS SIMATIC S5 6ES5 441-8MA11 DIGITAL OUTPUT MODULE LOT OF 9 PC

SIEMENS SIMATIC S5 6ES5 466-8MC11 ANALOG INPUT MODULE

SIEMENS SIMATIC S5 6ES5465-7LA13 ANALOG INPUT MODULE

SIEMENS SIMATIC S5 6ES5470-7LB12 ANALOG OUTPUT MODULE

SIEMENS SIMATIC S5 C79451-A3449-A11 PROMMER

SIEMENS SIMATIC S5-100U 6ES5 102-8MA01 CPU 102 UNIT

SIEMENS SIMATIC S7 6ES7 132-4HB10-0AB0 ET200S 2DO RELAY DC/AC LOT OF 2 UNIT

SIEMENS SIMATIC S7 6ES7 151-1AA03-0AB0 SIMATIC DP INTERFACE MODULE IM151-1

SIEMENS SIMATIC S7 6ES7 353-1AH01-0AE0

SIEMENS SIMATIC S7 6ES7 353-1AH01-0AE0 POSITION FUNCTION MODULE

Siemens SIMATIC SC 6ES7120-0AH01-0AA0 Terminal Block

SIEMENS SIMOS PT32 LG805-9671 408000237

SIEMENS SINAMICS 6SL3995-6LX00-0AA0 AVT-COMBI

SIEMENS SINAMICS CU240S DP CONTROL UNIT 6SL3244-0BA20-1PA0

SIEMENS SINAMICS G110 CPM110 0.25 kW 6SL3211-0KB12-5UA1

SIEMENS SINAMICS G110 CPM110 0.75kW DRIVE 6SL3211-0KB17-5BA0 200-240V

SIEMENS SINAMICS G110 CPM110 DRIVE 0.37kW 6SL3211-0AB13-7UA1

SIEMENS SINAMICS POWER MODULE 240 6SL3224-0BE15-5UA0 0.55kW CU240E-2 PN

SIEMENS SINEC L2F0 0LM/S4 OPTICAL LINK MODULE 6GK1502-4AB10

SIEMENS SIPART DR20K INDUSTRIAL PROCESS CONTROLLER 6DR20041

SIEMENS SIPART DR20S INDUSTRIAL CONTROL SYSTEM 6DR20011 220-240V

SIEMENS SIPART DR21 PROCESSOR CONTROLLER 6DR2101-5 230VAC

SIEMENS SIPART DR21 PROCESSOR CONTROLLER 6DR2104-5 230VAC

Siemens SIPROTEC 7SJ6211-5EN32-1FG1 Multifunction Protection Relay

SIEMENS SIPROTEC 7SJ82 EMPTY BACK PANEL

SIEMENS SIPROTEC 7SJ82 FRONT DISPLAY PANEL BROKEN

SIEMENS SIRIUS 3RP1525-1BP30 TIMING RELAY ON DELAY

SIEMENS SIRIUS 3TX7002-1BF00 INTERFACE RELAY 230VAC/DC

SIEMENS SITOP 6EP1 333-2BA00 POWER SUPPLY

SIEMENS SITOP DC UPS POWER SUPPLY 6EP1931-2EC42

Siemens SITOP Power 10 6EP1 334-1AL11 Power Supply

Siemens Sitop Power 2.5 6EP1 332-1SH11 Power Supply 6EP1332-1SH11 24V DC

SIEMENS SITOP POWER 2.5 6EP1332-1SH12 POWER SUPPLY 24VDC 2.5A

Siemens Sitop Power 5 6EP1333-1AL11 Power Supply 24V 5A

SIEMENS SITOP POWER FLEXI 6EP1 353-2BA00

SIEMENS SITOP PSU100C 6EP1 332-5BA10 POWER SUPPLY 24VDC

SIEMENS SITRANS P 7MF4433-1EA02-2AC1 TRANSMITTER FOR DIFF PRESSURE

SIEMENS SITRANS PROBE LU 7ML5221-2AA12 ULTRASONIC LEVEL TRANSMITTER 24VDC

SIEMENS SITRANS PROBE LU 7ML5221-2AA18 LEVEL TRANSMITTER 24VDC

SIEMENS SM322 DIGITAL OUTPUT MODULE 6ES7 322-1BL00-0AA0

SIEMENS SRT1034-1B CONTACTOR

SIEMENS ST-300 6ES7 340-1AH02-0AE0 COMMUNICATION PROCESSOR

SIEMENS TD100C 6ES7 272-1BA10-0YA0 TEXT DISPLAY UNIT

SIEMENS TERMINATION MODULE PTM6.20250-M

SIEMENS TP170B 6AV6 545-0BB15-2AX0 MONO TOUCH PANEL 24VDC

SIEMENS TXB1.PBUS INTERFACE MODULE 24V

SIEMENS TXM1.16D 16 CH DIGITAL INPUT MODULE

SIEMENS TXM1.6R 6-CH RELAY OUTPUT MODULE

SIEMENS TXM1.6R TX-I/O 6-CHANNEL DIGITAL OUTPUT MODULE

SIEMENS TXM1.8U 8-CH UNIVERSAAL I/O MODULE

SIEMENS TXM1.8U 8-CH UNIVERSAL I/O MODULE

SIEMENS TXS1.12F10 POWER SUPPLY MODULE 24V AC/DC

SIEMENS VOLTMETER 0-600V

SIGMATEK DIAS DDI 161 DIGITAL INPUT MODULE 05-006-161

SIGMATEK DIAS DIC 121 DIAS POWER SUPPLY 05-003-121

SIGMATEK DIAS DTO 163 DIGITAL OUTPUT MODULE 05-007-163

SIGMATEK DTO163 DIGITAL OUTPUT MODULE 05-007-163

SIGNALINE 330-120V-10SEC OPERATE DELAY RELAY

Signum Water/TBN Tester Oil Testing Device

SII 503020-01 MarkPoint KeyPad wSII LCD Module L169200J2 MEW-183

Silicon Power System SPS-43 Alternator Voltage Regulator SPS43

SIMPLY VAV BAC-8001 COOLING AND HEATING SINGLE DUCT VAV CONTROLLER

SIMPLY VAV BAC-8205 BACNET FAN AND REHEAT CONTROLLER 24VAC

SIMPSON H345371020 PANEL METER 9-36VDC

SIMPSON SKU-F351910 DIGITAL PANEL METER 4TL78 120VAC

SIMRAD NORGE 37960309 INTERFACE BOARD 37960325-B

SIMRAD NORGE DDA 382-066411 PCB

SIMRAD NORWAY REV.A 357681 TRB XC 211020 383-211045

SIMRAD ROBERTSON A/S 25005315 ALARM & FUNCTION BOARD

SIMTRONICS GD10 INFRARED GAS DETECTOR 100% LEL CH4

SIN WOO ENG S-CON RTD ISOLATED TEMPERATURE

SINCHRONIZING GENERATOR II S265/2 DOUBLE VOLTMETER CT450/100V

SINCHRONIZING GENERATOR II S270/2A DOUBLE FREQUENCY METER

SINWOO S-CON FDC-2C8N-Y SIGNAL CONVERTER 24VDC

SIRAI L172V03 SOLENOID VALVE G 1/8X2 50BAR 230V

SITARA PROCESSOR AM437X INDUSTRIAL DEVELOPMENT KIT XDS100 512640 EVM KIT

SIXNET ET-GT-ST1 SIXTRAK I/O GATEWAY

SIXNET ST-AI-10V-08 8-VOLTAGE ANALOG INPUT MODULE

SIXNET ST-DI-024-16 16-DISCRETE INPUT MODULE

SIXNET ST-DO-DC1-08 8-DISCRETE OUTPUT MODULE ST-DO-DC1-08UB

SIXNET ST-DO-DC2-16M 16-DISCRETE OUTPUT MODULE ST-DO-DC2-16HB

SIXTRAK AT-AO-20M-08M 8-ANALOG OUTPUT MODULE ST-AO-2OM-08FB

Skywave DMR-800 Transceiver SM200252-BHG Pole Star

Skywave IDP 690 SM201206-SXG Satellite Terminal

SM ELECTRICS P10002-4 INTERFACE MODULE NMEA 210.24.0.0

SMART SB-DIM2C6A-DN 2-CH DIMMER 6A

SMART SB-DIM4C3A-DN 4-CH DIMMER 3A

SMART SB-DIM6C2A-DN 6-CH DIMMER 2A

SMARTX CONTROLLER UI-8/DO-FC-4-H I/O MODULE

SMC ITV2010-012BL2 ELECTRO-PNEUMATIC REGULATOR

SMC PNEUMATICS ECC-PNAL2-24MR-D SMART RELAY 24VDC

SMC V0307E-BD0-Q SOLENOID VALVE 59634801 COIL VOLTAGE 24V AC

SNP2NN/017RN01BAP1C7C3NNNN/NNNNN GEAR PUMP 111.20.222.00

SOLA HEVI-DUTY EGS SLS-24-036T POWER SUPPLY 24VDC

SOLCON MPS3000 MOTOR PROTECTION SYSTEM 83300124 110-220VAC/DC

SOMFY UPS10 TRANSFORMER 24VDC

SPEC 1622C169 CONTROLLER FOR CATHODIC PROTECTION EQUIPMENT