51305508-200 咨询热线:18050036945 在用户程序执行阶段,PLC总是按由上而下的顺序依次地扫描用户程序(梯形图)。在扫描每一条梯形图时,又总是先扫描梯形图左边的由各触点构成的控制线路,并按先左后右、先上后下的顺序对由触点构成的控制线路进行逻辑运算,然后根据逻辑运算的结果,刷新该逻辑线圈在系统RAM存储区中对应位的状态;或者刷新该输出线圈在I/O映象区中对应位的状态;或者确定是否要执行该梯形图所规定的特殊功能指令。 即,在用户程序执行过程中,只有输入点在I/O映象区内的状态和数据不会发生变化,而其他输出点和软设备在I/O映象区或系统RAM存储区内的状态和数据都有可能发生变化,而且排在上面的梯形图,其程序执行结果会对排在下面的凡是用到这些线圈或数据的梯形图起作用;相反,排在下面的梯形图,其被刷新的逻辑线圈的状态或数据只能到下一个扫描周期才能对排在其上面的程序起作用。 *********************************** 厦门莫格电气自动化有限公司 联系人:杨丽君(销售工程师) 手 机:18050036945/0592-6808374 Q Q:3443643092 邮 箱:3443643092@qq.com 传 真:0596-6514751(请备注杨工收) *********************************** Bellofram 962-033-000 Sub-Miniature Regulator, 5mm Ports 250 PSI IN, 0-15PSI Stocker Yale M1000 Mille Luce Fiber Optic Illuminator, 115VAC 230VA, 18mm Input NMB Technologies 4710PS-12T-B30 Axial Fan 115VAC, 50/60Hz, 14/11W Lot of 3 New TRI-DIM 24" x 96" TRI-DEK Air Filter 4 Deniers Galvanized Wire RSF Elektronik MSA 6905-4 Linear Encoder EK71302AB005 120mm, 10um, 5V Lot of 2 New RP1220 12" x 20" Produce Bag Rolls 775 per Roll Clear Low Density Globe Motors A59-B15A-15T3-000 Fan 115VAC, 50/60Hz, 35/32W, 5.75" Dia. Stocker & Yale Fiber Optic Ring Light, 18mm Input, 32mm Ring ID, 36" Long Lot of 1000 New Adenna NPF885 Non-Slip Wet/Dry Nitrile Exam Gloves Medium 4.8mil International Rectifier IRKT91-08 Thyristor 95A Lot of 1000 New Kimberly Clark 55082 Nitrile Disposable Gloves Medium Purple Lot of 900 New Adenna PHM916 Phantom Black Latex Powder Free Examination Gloves Concoa PurityPlus 3043001-84-000 Regulator, 3000 PSI Max, 0-100 PSI, w/Gauge Concoa PurityPlus 3044001-84-000 Regulator, Stainless, 3000 PSI Max, 0-250 PSI Omega CN78133-LV Process Controller, 12-24VAC/DC, Alarm, 2 Relay Outputs SMC SY114A-5MOZ Manifold Containing 2 Pneumatic Solenoid Valves, 3-Port, 24VDC Cole-Parmer 77096-00 Emergency Cutoff System for Liqui-Sense 115VAC 1.2kVA Olympus VMZ 1x-4x Stereo Microscope, Missing Eyepieces Cutler-Hammer WMS1C08 Circuit Breaker, 1 Pole, 8 Amp, 240V New Red Lion CUB3TR20 Timer, 60-260V, 1 hr, Resettable New Baumer BDK 16.05A2048-5-5 Incremental Shaft Encoder, 5VDC, 12000RPM, Parker 71-016987-10 Gemini Series Cable Banner M12PFF25 Photoelectric Sensor 10-30VDC PNP Light/Dark NEMA 6 25mm Range Boeckeler JS-40 Joystick Controller for Video Image Marker System 2-Axis Serial Parker Bayside RA60-008 Gearhead, 8:1 Ratio, 60mm Frame Size, Low Backlash RSF Elektronik MS 65-55G Linear Encoder with 6" Reader, 5V, 50um Intervall Numatics NBSD2-CD01I-CO Pneumatic Tie Rod Cylinder 3/4" Bore 1 1/2" Stroke New Cutler-Hammer WMS1C08 Circuit Breaker, 1 Pole, 8 Amp, 240V New Cutler-Hammer WMS2C08 Circuit Breaker, 2 Pole, 8 Amp, 415V Talboys 949510 Single Block Dry Heater 120VDC 0.9A Ambient +5°-150°C High/Low New Cutler-Hammer WMS2C16 Circuit Breaker, 2 Pole, 16 Amp, 415V Turck BC3-M12-AP6X-H1141 Capacitive Proximity Sensor 10-30VDC 200mA 3mm Range Lot of 4 New SMC ZPT13BS-B5 Vacuum Bellows 13mm Pad M5x0.8mm Thread Silicon Baldor VP7424D DC Motor w/ Gearbox, 1/5HP 0.15KW 180VDC 1.1A 1750RPM D63D Intercon 1 VCP-10-S Cable for Sony XC Series Cameras 10m 32.8 GE Fanuc IC693CHS392J Expansion Backplane for 10 I/O Modules GE Fanuc IC693MDL740F PLC Output Module, 12/24VDC 0.5A, 16 Point, Pos Logic Sony DC-700 Camera Adapter for XC Series Cameras 100-120VAC 22W BNC Connectors GE Fanuc IC693ALG220G PLC Analog Input Module, 4 Point Fisher Scientific 282A Isotemp Vacuum Oven, 115V 15A, 12x12x18" Chamber, 280°C Beckhoff EL9100 Voltage Supply Terminal, 24VDC, 10A New Sartorius YDP03-OCE Printer w/ Ink Ribbon & Paper & Cables & Batteries National Instruments NI 4021 SCXI Switch Controller New Bimba SSM-704-DWEE1 Stainless Steel Cylinder 3" Bore 4" Stroke 250PSI New Spears 467E-335SR Saddle Clamp w/ Stainless Steel Ring EPDM Gasket 3" x 1" Hughes VTA-60 Weld Head 250 Watt-Seconds 4oz-20lbf *Missing 1 Weld Arm* B-Line J&P Box 312J, Junction Box, 6"x6"x6" Analog Devices 5B47-T-07 Isolated Linearized Type TC Input, 0C-200C, 0V-5V Analog Devices AD204JY Isolation Amplifier, PCB A/R 1.1, 750 V rms, 5 kHz Keyence AP-C31KP Neg. Press. Vacuum Switch 0 to -29.9inHg 12-24VDC 1-5VDC Output Patlite MT Stack Light Tower 24VAC/DC Red, Amber, Green Incandescent Steady Aalborg GFC17 Mass Flow Controller for Helium Gas 0-1SCFH 24VDC 0-5V/4-20mA Parker 74332BN4UNJ1N0D1D1C2 2-Way Solenoid Valve, 170PSI, 24VDC, 10W, 1/8" New Dodge 117154 Taper-Lock Bushing, 3/4" ID Aalborg GFM37 Mass Flow Meter for Argon Gas 0-70SCFH 24VDC 0-5V/4-20mA Sunx FM-214-4-P Digital Flow Sensor, 10L/MIN, PNP, 4mm Port Fitting, 12-24VDC Sunx FM-253-4-P Digital Flow Sensor, 5L/MIN, PNP, 4mm Port Fitting, 12-24VDC Allen Bradley 700-FEA3TU23 Ser B On-Delay Timer SPDT 0.05sec to 10hr 24-48VAC/DC Banner SM312FPGQD Mini-Beam Fiber Optic Sensor 10-30VDC Bipolar Euro Connector New Federal Signal LSL-120R Red Color Stack Light Tower Module 120VAC SMC NZM051HT-K5LZ Vacuum Generator 75PSI Supply Pressure 24inHg SMC IZN10-01P06-B2 Ionizer, High Frequency Nozzle, PNP, F6 Metric, 24VDC Oriental Motor DGM60-ASAK Hollow Rotary Actuators 24VDC 1:18 Ratio Single Shaft Wilkerson F08-01-SK00 Pneumatic Filter, 1/8"NPT, 25 SCFM, 5-Micron Watts R25-01C Pneumatic Regulator, 1/8"NPT, 150PSI Max, 0-125PSI Range Arrow R162 Pneumatic Regulator 1/4" NPT, 1/8" Gauge Port, 250PSI Max, 5-125PSI SpeedAire 6ZC33A Pneumatic Regulator, 1/8"NPT, 250PSI, 2-125PSI Range New Dodge 117089 Split Taper Bushing, 7/8"ID, Taper-Lock Terminal Box Assembly, Hoffman A402DSC Enclosure, 5-PIN QD Plug, 14-Terminals New Federal Signal LSB-120 Stack Light Tower Base 120VAC Black w/ Cap New Keyence LC-2400A LC-2420 Laser Displacement Meter System Cutler-Hammer E26XWWL6W-V2 Blue Stack Light Tower Module 24VAC/DC Incandescent Parker 14R113FC Regulator, 1/4"NPT, 1/8" Gauge Port, 300 PSI Max, 2-125PSI Range TPC UPR2000 Regulator, 1/4"NPT, 1/8" Gauge Port, 150 PSI Max, 7-120 PSI Range TPC PR2 Regulator, 1/4"NPT, 1/8" Gauge, 140 PSI Max, 7-140 PSI Range Patlite LCE-FBW Stack Light Tower 24VAC/DC Green, Red, Green w/ Sounder, Bracket Lot of 2 New Philips MH400/U Metal Halide Lamps Universal Mount 20,000 Hr New Point Grey FWB-PCIE-01 Single Channel Dual Port Firewire Card PCI-E 2.0 Clippard MMR-2Q-P60 Regulator 1/4" NPT, 1/8" Gauge, 150PSIG Max, 7-60PSIG Range Clippard MMR-2Q-P30 Regulator 1/4" NPT, 1/8" Gauge, 150PSIG Max, 7-30PSIG Range Clippard MMR-2Q Regulator 1/4" NPT, 1/8" Gauge, 150PSIG Max, 7-30PSIG Range Lot of 4 New BSW-00N 10-32 Leveling Mount 3/4" Footprint Nickel Finish ±15° Contemporary Controls AI-SRVR-1/TB5 ARCNET Server to Ethernet Client