6ES7417-4HL04-0AB0西門(mén)子6ES7417-4HL04-0AB0西門(mén)子

編程規(guī)則與典型程序塊
    利用梯形圖編程與采用繼電器控制電路有些相似，因此，很多人習(xí)慣采用梯形圖編程。梯形圖編程有些基本要求和規(guī)則，也有一些規(guī)律可循。
    2.1梯形圖設(shè)計(jì)的基本原則
    PLC編程應(yīng)注意以下基本原則。
    （1）外部輸入/輸出繼電器、內(nèi)部繼電器、定時(shí)器、計(jì)數(shù)器等軟元件的觸點(diǎn)可重復(fù)使用，沒(méi)有必要特意采用復(fù)雜程序結(jié)構(gòu)來(lái)減少觸點(diǎn)的使用次數(shù)。
    （2）梯形圖每一行都是從左母線開(kāi)始，線圈接在zui右邊。在繼電器控制原理圖中，繼電器的觸點(diǎn)可以放在線圈的右邊，但在梯形圖中觸點(diǎn)不允許放在線圈的右邊。如圖6-10所示。

（3）線圈不能直接與左母線相連，也就是說(shuō)線圈輸出作為邏輯結(jié)果必須有條件。必要時(shí)可以使用一個(gè)內(nèi)部繼電器的動(dòng)斷觸點(diǎn)或內(nèi)部特殊繼電器來(lái)實(shí)現(xiàn)。參見(jiàn)圖6-11所示。

鄭娟萍

廈門(mén)仲鑫航自動(dòng)化設(shè)備有限公司

（4）同一編號(hào)的線圈在一個(gè)程序中使用兩次以上稱為雙線圈輸出。雙線圈輸出容易引起誤操作，這時(shí)前面的輸出無(wú)效，只有zui后的輸出才有效。但該輸出線圈對(duì)應(yīng)觸點(diǎn)的動(dòng)作，要根據(jù)該邏輯運(yùn)算之前的輸出狀態(tài)來(lái)判斷。如圖6-12所示，由于M1雙線圈輸出，所以，M1輸出隨zui后一個(gè)M1輸出變化，Y1隨*個(gè)M1線圈變化，而Y2隨第二個(gè)M1輸出變化。所以，一般情況下，應(yīng)盡可能避免雙線圈輸出。

    （5）梯形圖程序必須符合順序執(zhí)行的原則，即從左到右，從上到下執(zhí)行，如不符合順序執(zhí)行的電路不能直接編程，例如圖6-13所示電路不能直接編程。
    （6）梯形圖中串、并聯(lián)的觸點(diǎn)次數(shù)沒(méi)有限制，可以無(wú)限制的使用

Polycom Quad BRI/384K, Lot of 2

INDUSTRIAL SBC,PC,IPC,NEAT-590,COMPUTER BOARD TESTER

NSK EDC-PS3015AB501 MegaTorque SERVO Drive

Omron SYSMAC C200HE CPU42,LK201-V1,MD215,MD501 (5)

Omron F3W-D052A-L and F3W-D052A-D Line Sensor

Mitsubishi A2A CPU P21, AX42,AY51,AY51,AX42,AX42 (7)

Mitsubishi A2A CPU P21,AX42,AY51,AY51,AY13,AX41,AJ71UC24 (4)

Lauterbach Trace32 JTAG-ARM9

Mitutoyo ES-11PB,542-053,ES-P

Mitsubishi A2A CPU P21, AJ71UC24,A42XY,AD71,AX42,AX42,MY42,A62DA (5)

Agilent 10462A 3-STATE TTL CMOS Data Pod

CB-420 Vision Camera #1

Olympus Microscope Lens msplan 5

Mitsubishi A2A CPU P21, AJ71UC24,A42XY,AD71,AX42,AX42,AY42,A62DA (9)

Mitutoyo 543-681 Absolute Indicator

OMRON SYSMAC C200HS CPU01,MD215,NC211,ASCO2,ID215,OD215,LK201-V1.MD215,MD215 (3)

Mitsubishi A61P, AX42,AY51,AY51,AX42,AJ71UC24 (11)

Mitsubishi A2A CPU P21, AJ71UC24,A42XY,AD71,AX42,AX42,AY42,A62DA (6)

NI SHC-68,National Instruments,SHC68-68-EPM,0.5M

Mitsubishi A2A CPU -S1, AX42,AX42,AX42,AY42,AY42,AJ71UC24 (10)

Mitsubishi A2Acpu p21-s1,Aj71uc24,A42xy,Ad71,Ax42,Ay42,A62da (1)

i CSU4000B CCD Camera Control Unit

Lauterbach JTAG-ARM7-20 LA-7746

NSK ESA-Y3008TF2-21.1 MegaTorque Drive

Mitsubishi A2Acpu p21-s1,Aj71uc24,A42xy,Ad71,Ax42,Ax42,Ay42,A62da (2)

Olympus JF UM20-12

OMRON SYSMAC C200HS CPU21,NC211,ASCO2,ID215,OD215,OC222,MD215,LK201-V1 (4)

Leica Stereozoom 5 head ( No Eyepiece )

Tohnichi Torque Drive 20FTD2-s

Omron K3HB-XAD-CPAC21 Digital Panel Meter

i Camera Adapter CA130B

Keyence PJ-S08 Light Curtain Multi-Beam

INTERFACE IBX-4914 BOARD

VP-810/122 BOARD WORKING

Omron K3NX-VD2C-T1 Panel meter

Omron E5EN-Q3HBT-N Temperature Controller

Yamatake SDC20 Temperature Controller

HP 16542-61607 Double Probe Adapter

Mitsubishi A3A CPU P21, AJ71UC24,A42XY,A42XY,AX42,AH42,AY42,A42XY (12)

Omron F3W-B035L and F3W-B035-D Line Sensor

Manfrotto Art 454,Micrometric Positioning Sliding Plate #1

Sunx DP2-22Z Digital Pressure Sensor

Nikon e Plan 40x / 0.65 160/0.17 Objective

Sony XC-75 Video Camera Module With lens

Olympus PM-CBSP AND CAMERA

Sony XC-55 Progressive Camera Module With lens

Sony XC-75 Video Camera Module

SMC ZSE40-01-22 Readout Pressure Control Switch

i CCD CS8320B with Nikon 10X(qty2)

Takenaka TMC-724 CCD Camera

PULNIX TM-9700NMTH,Progressive Scan,Takenaka System

Vexta PMM33bh2-C16 ,Oriental Motor

Olympus DPlanApo 10 UV 0.40 160/0,17 Objective

Nikon UV-F 100 1.30 Glycerine 160/0.17 Objective

Sony XC-ST50 CCD Video Camera With lens and Manual Stage

Olympus DApo 100 UV 1.30oil 160/0,17 Objective

shimatec led power supply s2ch(25W)

Manfrotto Art 454,Micrometric Positioning Sliding Plate #2

Chuo seiki Manual Stage

i CCD CS8320B with Kenko

Olympus PM-10AK With Power supply

Nikon Fluor 20x / 0.75 160/0.17 Objective

Olympus PM-CB20 n PM-PB20

i CCD CS8420i With Bracket #2

Correct 4.5x lens With Shimatec BSL-520TOSW #2

Olympus SPlan 40x 0,70 160/0,17 Objective

Fluke 8505a Multimeter-For parts

Olympus BH2 BHTU Microscope Trinocular Head AND eyepiece

Olympus SPlan 10 0,30 160/0,17 Objective

Sony XC-ST50 CCD Video Camera With lens

i CCD CS8420i With Bracket #1

Nikon Optiphot Trinocular head and eyepiece

Sony XC-ST50 CCD Video Camera With line light LV-27-SW

ex headset h-630,Orginal Box

Flovel CCD CAMERA CB480B with Correct lens #1

Correct 4.5x lens With Shimatec BSL-520TOSW #1

Nikon e Plan 10 / 0.25 160/- Objective

Sony SC-ES30 CCD Video Camera With lens

Grass Valley Group Kalypso Menu

Flovel CCD CAMERA CB480B with Correct lens #2

ex headset h-630

Sunx DP2-20Z Digital Pressure Sensor

Keyence FS-V21R Fiber Optic Sensor

Mithubishi A2ACPU P21 AX42,AY51,AY51,AY13,AJ71UC24 (3)

Olympus BH2 Microscope Eyepiece WK 10X /20L

Keyence FS-V31 Fiber Optic Sensor

Keyence PS2-61 Photoelectronic Sensor

Omron E3X-T11 Photoelectronic Switch Sensor

Olympus BH2 Microscope Objective A4,A10,A20,A40,A100

SMC ZSE40F-01-22 Pressure Control Switch (Lot of 2)

Sunx DP-20 Digital Pressure Sensor (Lot of 7)

Keyence FS-T22 Photoelectronic Sensor

Omron E3X-NT11 PhotoElectronic Sensor (Lot of 2)

Arcomed ag volumetric pump 5005 #1

GE Dash 2000 Patient monitor #1

Keyence FS-V11,FS-V12 Fiber Optic Sensor

Arcomed ag volumetric pump 5005 #2

aesculp elan-ec ga 835 and parts

Omron E3S-AT61-D & E3S-AT61-L Photoelectronic Switch(Pair)

Keyence PZ-41L Photoelectric Sensor

Olympus BH2 Microscope Trinocular Head

Olympus CH2 BInocular Microscope

Keyence FS2-62 Photoelectronic Sensor (Lot of 3)

Keyence AP-31,AP-33 Pressure Switch

Keyence Lot of 3 AP-21A,AP-23A Pressure Switch

Trek 610D HV Supply / Amplifier / Controller , 610D-G

Olympus BH2 Microscope Body, BHTU

Omron E3X-A11 PhotoElectronic Sensor With E32-D11L(Lot of 2)

Olympus BH2 Microscope Condenser

Aspect Medical System DSC-XP 185-0124 Modual

Hall ultrapower high speed drill 7020-011 with parts

Olympus BH2 Microscope Stage

Keyence PZ-41 Photoelectric Sensor

GE Dash 2000 Patient monitor with cable #2

Olympus BH2 Trinocular Microscope BHTU (2)

Datatransit DR-108 BUFF ANALYZER

Keyence FS-T1 Fiber Optic Sensor

Olympus MAJ-1536 evis Lucera Keyboard

linvatec powerpro Controller pro2000i with handpiece

Intra-Automation GmbH Intrasonic

Yokogawa dr240 hybrid recorder,no module.

Olympus u-etr-4 Trinocular head for BX Series

Olympus whn10x-h/22 ,whn10x/22 eyepiece for u-etr-4 Trinocular head

leica 10445302 and wild 445302 eyepiece pair for leica stereo microscope

NI USB-6509,ni usb-6509, 96-ch 5vttl/cmos dio

Schneider 75mm f/2 super,Anamorphic 2x MC,Projection Lens

LEICA MS5 Microscope Body & Camera Adaptor / No eyepiece / #2

INTERFACE IBX-3133 BOARD

Schneider Super-Cinelux 2/77.5mm,Anamorphic 2x MC,Projection Lens

EXFO FVA-80 Optical Variable Attenuator

Ohmite D100K100 100W,100Ohms "Unused in a Box"

Rockwell Samsung NX700,NX-CPU750a,NX-POSI2. ETC....

INTERFACE IBX-2130CL BOARD

Polycom 1565-07242-002 sub woofer

Chino Infrared Thermometer IR-TA

American Optical AO 45x microscope objective

Crestron tps-impc and tps-3000

INTERFACE IBX-2796C BOARD

ALNOR AXD 550 Micromanometer

Edwards D37421000 Pump local Control iTIM

Schneider 2/37.5mm 1.48 in Projection Lens,35mm FILM (1)

American Optical AO 100x oil microscope objective

Tekelec v.24/RS232C Interface Modules Qty 2

Navitar 1-60135,1-60110,2x Adapter 6030,1-6010