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。
5 - General Electric Type THQB Circuit Breakers 20A GE Lot1-Pole #13070
SMC Valve System AR25-02H-X2138 #6353
Open End to Angle Open End Wrench 1-3/4" to 1-3/4" #12911
XB5AW33B5 Telemecanique GREEN Push Button #8746
CAT 5P-8403 Caterpillar Ring #11108
12-PR Sanifresh Industrial Work Gloves Nitrile Dipped ElasticCuff Small #13032
ISSC 1017UL / CSA-250-1-1 Timer #8963
CAT Hose AS Caterpillar P/N: 142-4962 #5175
L S 60W LED Power Supply COD. 12504590100 (UL) SP.NADISTR.12V #9887
Tru-Stop NAPA TS-451 Brake Shoes #10487
Keyence CA-DC100 2-Channel Light Controller #7009
Manitowoc Mot 4"x2"x1" Block #7441
3 Gould 1-pole 30A Fuse Her 20321 Lot # 12706
Future Design Controls FDC-7L-Z275 Limit Control #10404
SMC EAFM4000 Mist Separator #11761
Omron CQM-ID212 Input Module #10781
Festo DNGU-1 Pneumatic Air Cylinder 1/4" - 1.25" - PPVA#9031
Bimba Flat-1 Cylinder FO-170-75 RG #12109
2 - GE Fanuc Blank Space Filler Module 44C715527-001 #9699
Sisco Pressure Gauge 0-100PSIG #8086
SMC EAFM4000 Mist Separator 9.9 bar # 11558
Endinine Shock Absorber OEM .58 #9268
1-5/8" Open End to Angle Open End Wrench # 12913
Gojo Soap or Sanitizer Wall Mot Dispenser 5150-06 #11440
Gojo Soap or Sanitizer Wall Mot Dispenser 5150-06#11440
Mar-Bal Stand-Off Insulator w/Steel Inserts 3.5" tall, Red#12467
4 - Telemecanique Illuminated Indicator Button RED Z..-BV3 LOT#8571
Straight Through Fitting Brass Male Barbed #13012
SMC Valve Sub connector #7479
Cascade 7000035 Pin Kit #10979 / 11044 / 11091 / 11111 /11141
ASCO 8210G002 Solenoid Shut off Valve 1/2 " #7719
Bussmann NOS600 One-Time Fuse 600 AMPS #10091
Buss RES 500 Super-Lag 500 A Fuse #10093
Komatsu Valve Shut Off 1239688H92 #10559
Euclid Hitachi Kit E4029306 #7352
Komatsu 1209836H1 O' Ring #11098
Taylor and man Transformer Type DW 16295 #6193
20 - 5/16-18 Black Flat Hex Head Screw Interior BindingConnector cap #9944
NKS 0-0.6 MPa pressure gauge 1278128 #12339
DR24D12R Crydom Solid State Relay #7656
H3YN Omron Timer with socket base #6497
WM Forged Flange 1x.50" 150 B16.5 SA182 F304/304L #536718 9'14#7828
FO-090.125 Bimba Cylinder Pneumatic Flat-1 #9232
Omron F39-JC3A-D #6593
Napa Echlin BR125 Resistor #10690
Micro Plastics 04ASO750MSN Hardware #8929
Caterpillar CAT 132-8876 Hydraulic Oil Filter #5018 /#5019
1 Caterpillar CAT 132-8876 Hydraulic Oil Filter #5018/#5019
Encore Wire 14 AWG E156879 RED Strand Copper 81 Ft #12664
Wagner 4752R Lamp Red Beam #100301
Adhesive Felt Rectangle 1-3/4"x 1" Nitto 500 ,772 #8544
Fleetguard HF6118 Hydraulic Filter #100325
PHD CTS1U 32x2 -88 Pneumatic Compact Cylinder #9092
CAT Tee 6V-8781 Caterpillar #5085
Festo Coil: MSUG-3-24VDC Block: MUH-ZP-D-1-24G #12024
19 - togi terminal blocks ctw-15s 2 # 12029
SMC SV2100-5W2U-02T Position Solenoid/Air Control Valve#11774
Festo MEH-5/2-4,0-S-VI Solenoid Valve MEH-3-0.9 Coil #11592
CAT 8N-3301 Shaft Genuine Caterpillar #4660
ADVU-12-10-P-A Festo Compact Cylinder #9045 / 9082 / 9105 /9199
CDQ2A32-35D SMC Pneumatic Cylinder w/ JB40-8-125 Floating Joint#7859
ASCO 8262R220 shut off Valve #7728
SX Fiber Optic Sensor FX-7 #9002
CAT 124-6704 Resister A Genuine Caterpillar #4648
o QM 2/2 2.5/35 Terminal Block Blue White LOT
Stuwe Frictional Connector AS 25-12x25 #140130058
CAT 6T-8390 Caterpillar Shaft #11033
CAT 117-9315 seal Caterpillar # 5341
114-5593 CAT Valve #5095
WatLow St. Louis FireRod 1014 07 -E72J49 E2 #9413
Square D Control Relay type LO-80 #7202
Square D Control Relay type LO-80 #7202
Caterpillar Hydraulic Oil Filter in Package 167-2009#5050
2" Connector Bolt 1/4-20 Flat Head Black Lot of 150 #9943
Hoffman A-6AXFN Fan w/ Finger Guards #10212
Combination Wrench 1-1/4" India Forged H1 branded #12896
Open End to Angle Open End Wrench 1-7/8" x 1-7/8" #12900
KSR-Niveauschalter transmitter 624299-1 #2877
NAVI Sensor FX-302 #6508
Festo ADVC-20-25-I-P Pneumatic Actuator #11734
Fuji CP32M 7.5 Circuit Protector CP32M 7.5A #6507
Automation Direct Fuse Her DN-FM6 with fuse Trap 2000 #11537
Square D RED Pilot Light Indicator Light 9001 KM35#8777
1 Square D RED Pilot Light Indicator Light 9001 KM35#8777
panduit dnf18-250fim-c quick connect disconnect 50-cot#12145
2" open end to angle open end wrench #12889
Electrolet Killark 1" GECCT #4865
Joslyn Clark Stak-Lite Type sk red blue #3432
Solenoid valve pneumatic DC-24 #6520
Carlon E989N Jction w/Lights #2708
Encore Wire E156879 12 AWG Blue Strand 35FT #12659
CAT 132-4788 PIN Genuine Caterpillar #4638
Cutler-Hammer Stacklight E26BL Red Amber Green #10344
Fleetguard FS19621 Fuel / Water Separator Filter #100311
Square D Control Relay class 8501 Type LO-40 #7205
35 IDEC BNH15MW Terminal Blocks Lot plus Rail #4994
LS LED Power Supply SLT60-12VL-1A 60W 120V 12Vdc w/10-port #9486/ 9786 / 9884
Siemens 505-4132 Low VDC Input Module #8663-J / 8663-K
Komatsu site gauge w/ floating ball #11074
VME Parts Extension E4023366 Extender #7238
Festo 525221 Pneumatic Manif #11755
LH-6 Square D Handle #6198
Bimba D-86223-A-G Stainless Cylinder #9165
SMC VHS3500-03-X1 PORT LOCK OUT VALVE #6300 / 11216
Square D Timing Relay 8501 L0-40 #7206
10 -Everbrite Electronics WHITE LED Bare Rigid Light Strip Board600-0522 #12226
Sato "S" Applicator Print Engines Operator and TechnicalReference Manual #9678
MiSUMi SLHFRS25 Flange Type Linear Bushing #10783
Master Pneumatic Pressure Regulator with gauge R55M-2 #6536
Parker Brass 5/8" ball valve #10302
4- Balluff Cable C04REL00VY050M #6500
2 - Siemens Circuit Breaker Lot BQ3B030 30A 3P Type BQ #2904
Merlin Gerin Multi9 6A Circuit Breaker C60N 3P #10147
bosch da2/100b damper switch #12043
John Deere Ring 0373405 #7335
Omron E2J-JC4A Amplifier Proximity Sensor #11452
AB1BV6 Telemecanique Clip-In Marker Strips HUGE LOT #8948
Festo Manif Strip 5-position #12110
Komatsu 44816 Link # 10689
merlin gerin circuit breaker 3-pole 15a type d 480vac 17471#12071
Festo Pneumatic Rod Cylinder 10BAR / 145 psi DSNUL-16-100-PPV-A#9209
800T-R20 Demko Amber Pilot Control Light #6839
136-5694 CAT Socket Caterpillar #5429
Quabbin cat 5E/ISO Datamax Patchcord/Jumpter p/n: 5508#12375
59 - Gray Square Grommet Cover BULK WHOLESALE LOT #9882
Square D 9001KR30 GREEN Push Button #8787
19 - Timberline Lock 120T 103T 121E 127T 121T Key Lot #12686
DVS-180N Numatics Pressure Sensor #6566 / 11783
Wagner 4752 Beam Clear Off Road Rod #100314
XB5AA35 Telemecanique Button Green #8748
Bimba FO-092-CMT Pneumatic Air Cylinder #9094
Culter-Hammer Relay D5R3R1 w/ IDEC Socket base SR-3B-05#5550
