西门子PLC基本指令功能介绍
一、标准触点 LD、A、O、LDN、AN、ON、
LD，取指令。表示一个与输入母线相连的常开接点指令，即常开接点逻辑运算起始。
LDN，取反指令。表示一个与输入母线相连的常闭接点指令，即常闭接点逻辑运算起始。
A，与指令。用于单个常开接点的串联。
AN，与非指令。用于单个常闭接点的串联。
O，或指令。用于单个常开接点的并联。
ON，或非指令。用于单个常闭接点的并联。
二、正、负跳变 ED、EU
ED，在检测到一个正跳变（从OFF到ON）之后，让能流接通一个扫描周期。
EU，在检测到一个负跳变（从ON到OFF）之后，让能流接通一个扫描周期。
三、输出 =
=，在执行输出指令时，映像寄存器中的参数位被接通。
四、置位与复位指令S、R
S，执行置位(置1)指令时，从bit或OUT的地址参数开始的N个点都被置位。
R，执行复位(置0)指令时，从bit或OUT的地址参数开始的N个点都被复位。
置位与复位的点数可以是1-255，当用复位指令时，如果bit或OUT的是T或C时，那么定时器或计数器被复位，同时当前值将被清零。
五、空操作指令NOP
NOP指令不影响程序的执行，执行数N（1-255）。
福州卓凯电子科技有限公司联系人：林工
公司地址：福州市闽侯西江滨大道77号正荣润园一号楼1205
公司主营产品有：AB,ABB,GE,西门子,力士乐，施耐德,福克斯，等工业自动化控制配件及各种停产备件。诚信经营，质量可靠，请放心购买，我们将竭诚为您服务！
CONTACT MINI-PS-100-240AC/5DC/3 POWER SUPPLYPHOENIX CONTACT PSM-EG-RS232/RS422-P/4K 2761266 INTERFACE CONVERTER 4CHANNELPIAB 32.01.009 VACUUM PUMP M63D 400KPA 60PSIPIG KIT476 OIL ONLY SPILL KIT IN SMALL MOBILE CONTAINER DRUM WITH LIDPILZ 1001 33 80 PITERMINAL 3 MONITOR 25W 24VDC INDUSTRIAL MONITOR 240490PILZ PZE X4 24VDC 4N0 CONTACT EXPANDER MODULEPINNACLE MFG 92597/07A-002 CYLINDER DRAW TUBE MODIFPIPER PLASTICS 8-F70-27-318-9 WHEEL STAR KRONESPITTMAN 801433 MOTOR CABLE 10 FEET -01PLASTIC FIBER OPTIC CABLE LOW OH 600UM X 25MPLASTIC ROLLER CHAIN CONVEYOR BELT 104" LENGTH 4" WIDTHPLASTIC ROLLER CHAIN CONVEYOR BELT 140" LENGTH 4" WIDTHPLATO CS-47 SOLDER TIP CLEANING SPONGE WITH CENTER HOLE 10 PACKS OF 10PMC PT-EL HA ELECTRONIC LEVEL AND VACUUM TRANSMITTER 0-50PSIG 24VDC 4-20MAPNEUMATECH P280-51 700550X1 C-250-85 COALESCER FILTER ELEMENT 25" LPNEUMATIC PRODUCTS CORP REPAIR KIT P/N 1197859PNEUMAX 1 PNEUMATIC CYLINDERPNEUMAX 1319.40.35.01 PNEUMATIC CYLINDERPNEUMAX 1348.50.50.01 PNEUMATIC CYLINDERPOLY FLOW ENGINEERING SFH-04 SOLVENT POUR STATION MODEL S-1083POLYCHEM WATER FILTER HOUSING 3/4" FEMALE NPT PORTS 21" LENGTHPOLYPHASER DAS-HY-DFDM-04 DC PASS AISG COMPLIANT COAXIAL PROTECTORPOLYURETHANE GEAR BELT 2920MM 115" LENGTH 1" WPOROS HS 20 UM 1-3322-26 COLUMN 4.6 X 100 MM 1.7 ML PERFUSION CHROMATOGRAPHYPOTTER & BRUMFIELD KHS-17D11-24 RELAY 4PDT 24VDC 1/10 HP 3A 120 VACPOTTER BRUMFIELD 120VAC TIME DELAY 10A RELAY CUF 42-70010POTTER BRUMFIELD SSRD-240D25 SOLID STATE RELAY 120/240V 25APOTTER BRUMFIELD W93-X1110-20 CIRCUIT BREAKER 20 AMP 3 POLE 277 VOLTPOWER DYNAMICS INTERCONNECT KITPOWER ONE HBAA-40W-AG DC POWER SUPPLY 3OUTPUTS 5VDC 3APOWERS SERIES 250 VALVE P/N 658-0086 1.0 CV MODEL 049346 SPRING RANGE 10 14VPOWERWAVE 470250A.101 ERGA FLEXI EDGE RF DUAL DUPLEXER 900POWERWAVE 472447A 472447A.101 5D111900733 FFNF MODULEPOWERWAVE 500-01187-001 200-01187-001 REV A PC BOARD PCB FUSE PLUG-INPOWERWAVE 500-12339-VLF-001A TRANSCEIVER MODULE PCB PC BOARDPOWERWAVE 700-18411-093 CABLEPOWERWAVE 7060.10 CILOC BTS CURRENT INJECTOR LAYER ONE CONVERTERPOWERWAVE CILOC 1001983 RF FEEDER BROADBAND CURRENT INJECTOR CONVERTERPOWERWAVE CILOC 109-1202-A RF FEEDER BROADBAND CURRENT INJECTOR CONVERTERPOWERWAVE LGP21302 CIN OD GEN3 806-2170MHZ OUTDOOR CURRENT INJECTOR 7/16POWERWAVE LGP23302 INDOOR CURRENT INJECTOR CIN ID 806-2170 MHZ W/ LEAD WIRESPOWERWAVE NEXUS-SENTINAL CHASSIS 12 SLOT + CNTRL/PSUPOWERWAVE OS1-2100 2100MHZ RF FEU FRONT END UNIT BOOSTERPOWERWAVE PW11044A0028 BIDIRECTIONAL TRANSCEIVER VEN-0900-20 ?POWERWAVE TECHNOLOGIES 8110.40 RET SB SINGLE BAND RETPOWERWAVE TECHNOLOGIES BASE STATION MANAGEMENT INTERFACEPOWERWAVE TECHNOLOGIES CM1002-DBPXBC-005 CROSSBAND COMBINER DIPLEXERPOWERWAVE TECHNOLOGIES EP-ITA0113-0400-020 POWER SUPPLY PSUPOWERWAVE TECHNOLOGIES EP-ITA0113-0400-100 POWER SUPPLY DC PSUPOWERWAVE TECHNOLOGIES G3L-1929-160 REV B POWER AMPLIFIERPOWERWAVE TECHNOLOGIES G3L-850-180-002 POWER AMPLIFIER 850 MHZ 180 WATTPOWERWAVE TECHNOLOGIES LGP13901 TOWER MOUNTED AMPLIFIER TMA-DD 1900 FBPOWERWAVE TECHNOLOGIES LGP17201 TOWER MOUNTED AMPLIFIER TMA-DDD 850/1900POWERWAVE TECHNOLOGIES LGP17205 TOWER MOUNTED AMPLIFIER TMA-DDD 850/1900POWERWAVE TECHNOLOGIES LGP18601 TOWER MOUNTED AMPLIFIER DUAL DUPLEXPOWERWAVE TECHNOLOGIES RH345789/401 REV A REPEATER 698-787 MHz 817-869 MHZPOWERWAVE TECHNOLOGIES RH709000/401 REV A REPEATER 698-787 MHz 1710-2155 MHZPOWERWAVE TECHNOLOGIES TT08-19DB111-001 TMA 850/1900 DUAL BAND TWINPOWERWAVE TECHNOLOGIES TT19-08BP111-001 TMA 1900/850 BYPASS TWINPOWERWAVE TECHNOLOGIES UA115 04/84 FIBER OPTIC DAS MASTER UNITPOWERWAVE TSAW-07BP111-001 TMA SINGLE AMS WITH 700 BYPASS TOWER AMPLIFIERPRECISION SENSORS INC 4863-115-GA-RM-CE WITH VALVEPRESSURE CONTROLS LCD2-3 PRESSURE SENSOR 2000 PSIGPRESSURE PRODUCTS IND MILTON ROY PUMP PART STAINLESS STEEL B-14683-003-01PRESSURE PRODUCTS IND. C-5702-100 ASSEMBLY COMPRESSOR MATCODE 006-04892PRIME POWER XP2117 A9000816000 Z-AXIS POWER SUPPLYPRIME TECHNOLOGY 92-9066-001 MODULEPRINTED BOARD LO SPEED OIDI W/256X 16RAM MATCODE 020-12292PRINTED CIRCUITBOARD PM1758.C.ISS.3 716012G1 MATCODE 004-09649PROCESS TECHNOLOGY P III-A TEMP CONTROLLERPROCOMAC 4-20878/8 SCROLL COMMAND COUPLING KEYED 0R05001753PROCOMAC PR0367 ELECTRONIC CARD 808140301/1 IFC011PRO-FAB STAINLESS STEEL PLEXIGLASS GLOVE/EQUIPMENT STORAGE CABINETPROFACE OPERATOR INTERFACE AGP3600-T1-D24 3280024-14 CLASS2 24V DC 1.30APROGRESSIVE TECHNOLOGIES SENTRY S1510 ATMOSPHERIC DIFFUSION FURNACE CONTROLPROMINENT FLUID CONTROLS CONB 1601PP 000D000 METERING PUMPPROSTAR PRX 21233 PRESSURE REDUCING REGULATOR WITH GAUGESPROTEUS 0105SS24 100 SERIES APPLIED MATERIALS AMAT FLOW SWITCH 24VDC 1/4FNPTPROTEUS INDUSTRIES 0150B110 FLOW METERPROTEUS INDUSTRIES 0160B24N FLOW METERPULS ML50.102 DC POWER SUPPLY OUT 12-15 VDC IN 100-240 VACPULS QS20.244 DC POWER SUPPLY DC 24-28 V 20 AMP OUT 200-240 VAC INPULSAFEEDER 680-S-AE DIAPHRAGM METERING PUMP 40:1 RATIO 150 PSIPUMP BUSHING MATCODE 017-13486 1 4 2X165EXPUMP CROSSHEAD KIND STL 008601PVDF CHECK VALVE 1-1/2" MALE NPT ENDS 9" LENGTHQA TECHNOLOGY COMPANY 100-PRP2581H-S RAZOR PROBE 500 COUNTQIAGEN 9012599 DISPOSABLE CONDUCTING FILTER TIPSQUALITROL 092-35U-2 FLOW INDICATOR PUMP ON PUMP OFF OIL FLOW INDICATORQUALITROL CORP 104-380-01 LIQUID TEMPERATURE GAUGE 0-120 DEGREE CQUALITROL CORPORATION DAL-042-38 WESTINGHOUSE OIL FLOW INDICATORQUINCY COMPRESSOR Q MAT 04 NO LOSS ELECTRONIC DRAINRAB WP2H150 METAL HALIDE WALLPACK 120V 150 WATTS 60HZRACAL FSCM 23 REV B POWER SUPPLYRADIOMETER COPENHAGEN 904-480 PROPELLER STIRRING KIT 10VDC W/ 10MM 18MM PROPRAINAN LTS PRECISION PIPETTE TIPS RC-L10ML 200 COUNTRAPID AIR 96100080 CONTROL BOARDRAYCHEM AUTOMATRIX AM-BSII SPLICE KIT FOR HAZARDOUS LOCATIONSRAYCHEM PMK-J2LP-M MONITOR WIRE POWERED SPLICE CONNECTION KIT POLYMATRIX BOXRAYCHEM TTC-1 TRACETEK SENSING MODULE ALARM LEAK DETECTOR INTERFACE CABLESRCA 6342-A PHOTOMULTIPLIER TUBERDO ENTERPRISES 0100-20159 PPECO 11110502 CONTROL BOARD REV CRDO ENTERPRISES
