S7200基本編程指令

S7-200PLC指令系統(tǒng)指令分類——按形式分2.功能塊1.繼電器觸點(diǎn)線圈——()Enable輸入?yún)?shù)IN1IN2N輸出參數(shù)OUT功能數(shù)據(jù)類型地址條件長(zhǎng)度EN指令分類——按功能分1。位操作功能2。定時(shí)器3。計(jì)數(shù)器4。算術(shù)運(yùn)算功能(整數(shù)與浮點(diǎn)數(shù))5。關(guān)系運(yùn)算功能6。數(shù)據(jù)傳送功能7。轉(zhuǎn)換功能8?？刂乒δ芤?、位邏輯指令邏輯關(guān)系梯形圖助記符I0.0I0.1LD I0.0A I0.1= Q0.0LD I0.0O I0.1= Q0.0LDN

I0.1= Q0.0與或非ANDORNOT當(dāng)I0.0與I0.1

都“ON”時(shí)，則輸出Q0.0

“ON”(1)。當(dāng)I0.0

或I0.0

“ON”時(shí),則輸出Q0.0

“ON”(1)當(dāng)I0.1

“OFF”時(shí)則輸出Q0.0

“ON”(1)Q0.0I0.0I0.1Q0.0Q0.0I0.1注意：與、或、非運(yùn)算均是對(duì)從該指令前面的指令到該指令的前一個(gè)指令處的結(jié)果進(jìn)行運(yùn)算。AI0.2是與圖中A點(diǎn)處的結(jié)果（即I0.0與I0.1的結(jié)果）相或，而不是與I0.1相或。I0.0I0.2I0.1LD I0.0A I0.1O I0.2= Q0.0例：Q0.0常開(kāi)觸點(diǎn)與常閉觸點(diǎn)的用法1.常開(kāi)觸點(diǎn)讀輸入映象寄存器的值,在右接線圖中,按鈕未動(dòng)時(shí)I0.0=1,I0.1=02.常閉觸點(diǎn)讀輸入映象寄存器的非值,在右接線圖中,按鈕未動(dòng)時(shí)I0.0=0,I0.1=1I0.0I0.0I0.1I0.1例1：直接啟動(dòng)停車控制繼電器控制電路圖I/O分配：I0.0：停車I0.1：?jiǎn)?dòng)Q0.1：KM梯形圖：語(yǔ)句表LDI0.1OQ0.1AI0.0=Q0.1停止優(yōu)先Q0.1I0.0Q0.1I0.1啟動(dòng)優(yōu)先I/O分配決定PLC的端子接線圖PLC的端子接線方式又決定編程語(yǔ)言I/O分配：I0.0：停車I0.1：?jiǎn)?dòng)Q0.1：KMQ0.1I0.0Q0.1I0.1Q0.1I0.0Q0.1I0.11LQ0.0Q0.1Q0.2Q0.31MI0.0I0.1I0.2I0.3KMFRSB1SB2置位、復(fù)位指令I(lǐng)0.1ExampleNETWORK1LDI0.0=Q0.0SQ0.1,1RQ0.2,2立即I/O指令—立即輸入直接讀取物理輸入點(diǎn)的值，輸入映象寄存器內(nèi)容不更新。指令操作數(shù)僅限于輸入物理點(diǎn)的值。LDII2.1=Q1.1LDNII2.3=Q1.2立即I/O指令—立即輸出執(zhí)行立即輸出指令時(shí)，則將結(jié)果同時(shí)立即復(fù)制到物理輸出點(diǎn)和相應(yīng)的輸出映象寄存器

I2.1Q1.2I2.3Q1.1III一個(gè)掃描周期輸出映象寄存器Q1.1執(zhí)行指令執(zhí)行指令一個(gè)掃描周期輸入映象寄存器I2.1輸入端子I2.1輸出端子Q1.1輸入端子I2.3輸出映象存器Q1.2輸出端子Q1.2立即I/O指令—立即置位和復(fù)位指令注意：立即I/O指令是直接訪問(wèn)物理輸入輸出點(diǎn)的，比一般指令訪問(wèn)輸入輸出映象寄存器占用CPU時(shí)間要長(zhǎng)，因而不能盲目地使用立即指令，否則，會(huì)加長(zhǎng)掃描周期時(shí)間，反而對(duì)系統(tǒng)造成不利影響。LDI0.1SIQ2.0,2LDI0.2RIQ2.0,2空操作正跳變負(fù)跳變能流到達(dá)取非觸點(diǎn)時(shí)，能流就停止；能流未到達(dá)取非觸點(diǎn)時(shí)，能流就通過(guò)。檢測(cè)到每一次正跳變（信號(hào)后，讓能流通過(guò)一個(gè)掃描周期的時(shí)間

檢測(cè)到每一次負(fù)跳變信號(hào)后，讓能流通過(guò)一個(gè)掃描周期的時(shí)間

取非輸入映象寄存器I0.0輸出映象寄存器Q0.0輸出映象寄存器Q0.1輸出映象寄存器Q0.2一個(gè)周期一個(gè)周期空操作指令（NOPN）不影響程序的執(zhí)行。操作數(shù)N是常數(shù)0~255ExampleNETWORK1LDI0.0AI0.1=Q0.0NETWORK2LDI0.0NOT=Q0.1NETWORK3LDI0.1ED=Q0.2Example:搶答器設(shè)計(jì)1LQ0.0Q0.1Q0.2Q0.31MI0.0I0.1I0.2I0.3KM2SB1SB2KM3KM1復(fù)位SB3SB4限流電阻KM4I0.4SB5Q0.1Q0.2M0.0Q0.0Q0.0I0.0Example:搶答器設(shè)計(jì)Q0.0Q0.2M0.0Q0.1Q0.1I0.1LDI0.0OQ0.0ANQ0.1ANQ0.2AM0.0=Q0.0LDI0.1OQ0.1ANQ0.0ANQ0.2ANM0.0=Q0.1I0.3M0.0M0.0I0.4LDI0.4OM0.0AI0.3=M0.0LDI0.1OQ0.1ANQ0.0ANQ0.2AM0.0=Q0.1T38TONPTIN300Example:搶答器設(shè)計(jì)Q0.3T38LDT38=Q0.3I0.3M0.0M0.0I0.4LDI0.4OM0.0AI0.3=M0.0TONT38,+300LDI0.2OQ0.2ANQ0.0ANQ0.1AM0.0=Q0.2Q0.0Q0.1M0.0Q0.2Q0.2I0.2T38TONPTIN300邏輯堆棧指令邏輯堆棧指令只用于語(yǔ)句表(STL)編程,在使用LAD和FBD編程時(shí),LAD和FBD編輯器會(huì)自動(dòng)插入相關(guān)的指令來(lái)處理堆棧操作.堆棧指令包括六條指令:ALD棧裝載”與”O(jiān)LD棧裝載”或”LPS邏輯入棧LRD邏輯讀棧LPP邏輯出棧LDS裝入堆棧邏輯關(guān)系梯形圖助記符LD I0.0O I0.1LD I0.2O I0.3ALD= Q0.0LD I0.0A I0.1LD I0.2ANI0.3OLD= Q0.0當(dāng)“I0.0

或I0.1”與“I0.2

或I0.3”

都“ON”時(shí)，則輸出Q0.0

“ON”。區(qū)塊與ALD（AndStack）區(qū)塊或OLD（OrStack）當(dāng)“I0.0

與I0.1”或“I0.2

與I0.3非”

“ON”時(shí)，則輸出Q0.0

“ON”。I0.0I0.1I0.2I0.3Q0.0I0.0I0.2I0.1I0.3Q0.0邏輯關(guān)系梯形圖助記符LDI0.0LPSLDI0.1OI0.2ALD=Q0.0LRDLDI0.3OI0.4ALD=Q0.2LPPLDI0.5ONI0.6ALD=Q0.3將中間有用值壓入堆棧邏輯入棧LPS（LogicPush）邏輯讀棧LRD（LogicRead）讀出先前存入的值I0.0I0.1I0.2Q0.3I0.3I0.4I0.5I0.6Q0.0邏輯出棧LPP（LogicPop）將壓入堆棧的中間有用值彈出堆棧Q0.2LDI0.0OT40LPSLDI0.1OI0.2AC40ALD=Q0.0LRDLDI0.3AI0.4ALD=Q0.1LPPLDI0.5ANI0.6ALD=Q0.2Q0.2Q0.0Q0.1LogicOperationLADSTLLPSLRDLPPLDI0.0OT40LPSLDI0.1OI0.2ALDAC40=Q0.0LRDAI0.3AI0.4=Q0.1LPPAI0.5ANI0.6=Q0.2LDI0.0OT40LPSLDI0.1OI0.2ALD=Q0.0LRDLDI0.3OI0.4ALD=Q0.2LPPLDI0.5ONI0.6ALD=Q0.3I0.0I0.1I0.2Q0.3I0.3I0.4I0.5I0.6Q0.0Q0.2LogicOperationLADSTLLPSLRDLPPT40LDI0.0OT40LPSLDI0.1OI0.2ALD=Q0.0LRDLDI0.3OI0.4ALD=Q0.2LPPLDI0.5ONI0.6ALD=Q0.3LDI0.0OT40=M0.0LDI0.1OI0.2AM0.0=Q0.0LDI0.3OI0.4AM0.0=Q0.2LDI0.5ONI0.6AM0.0=Q0.3Better!!!邏輯關(guān)系梯形圖助記符LDI0.0LDI0.1NOTAQ0.0OLD=Q0.0LDI0.0LDI0.1NOTLPSAQ0.1=Q0.1LPPALDOQ0.1=Q0.1當(dāng)置位指令和復(fù)位指令都為“1”時(shí)，輸出為“1”置位優(yōu)先SRI0.0I0.1Q0.1I0.0I0.1Q0.0S1OUTSRRSOUTRSR1復(fù)位優(yōu)先RS當(dāng)置位指令和復(fù)位指令都為“1”時(shí)，輸出為“0”時(shí)序圖I0.0I0.1Q0.1I0.0I0.1Q0.0S1OUTSRRSOUTRSR1編程中應(yīng)注意的幾個(gè)問(wèn)題I0.0Q0.0I0.1Q0.0I0.1Q0.0I0.0Q0.01、用電路變換簡(jiǎn)化程序(減少指令的條數(shù)）LDI0.0LDI0.1OQ0.0ALD=Q0.0LDI0.1OQ0.0AI0.1=Q0.02、邏輯關(guān)系應(yīng)盡量清楚(避免左輕右重)I0.3LDI0.2ANI0.3AI0.4LDI0.2AI0.5ANI0.6A

I0.7LDI0.2AI0.5ANI0.6AI1.0ANI1.1OLD=Q0.0ENDI0.2I0.5I0.4I0.6I1.0I0.7Q0.0I1.1I0.3I0.2I0.5I0.4I0.6I1.0I0.7Q0.0I1.1I0.5I0.6I0.2I0.23、避免出現(xiàn)無(wú)法編程的梯形圖I0.5I0.1I0.3I0.2Q0.1I0.4Q0.2LDI0.3AI0.5OI0.1AI0.2=Q0.1LDI0.1AI0.5OI0.3AI0.4=Q0.2ENDI0.3I0.2Q0.1I0.5I0.1I0.3I0.1I0.4Q0.2I0.5例子:小車自動(dòng)往返控制

要求：當(dāng)左行或右行按鈕接通時(shí)，小車在限位開(kāi)關(guān)I0.1和I0.0之間自動(dòng)往返運(yùn)動(dòng)，當(dāng)按停止按鈕I0.2時(shí)立即停止。I0.0Q0.0I0.1I0.2Q0.1I0.3I0.4停止按鈕左行接觸器KM1右行按鈕左行按鈕左限位開(kāi)關(guān)右限位開(kāi)關(guān)KM2右行接觸器I0.1I0.0Q0.0Q0.1DesignbasedonexperienceI0.1Q0.0I0.3Q0.1I0.0I0.2右啟Q0.0I0.4Left左啟Right左限位stopQ0.1I0.0Q0.1I0.4I0.3Q0.0I0.1I0.2Right左啟右啟Left右限位stop左限位開(kāi)關(guān)右限位開(kāi)關(guān)可逆電動(dòng)機(jī)起動(dòng)器電路電動(dòng)機(jī)電壓電動(dòng)機(jī)電路斷路器三相交流

感應(yīng)電動(dòng)機(jī)電動(dòng)機(jī)起

動(dòng)器順時(shí)針

方向旋轉(zhuǎn)左右停電動(dòng)機(jī)起動(dòng)器

逆時(shí)針?lè)较蛐D(zhuǎn)CPU221當(dāng)與輸入點(diǎn)I0.0相連的左轉(zhuǎn)點(diǎn)動(dòng)開(kāi)關(guān)閉合時(shí)，電動(dòng)機(jī)逆時(shí)針?lè)较蛐D(zhuǎn)，當(dāng)與輸入點(diǎn)I0.1相連的右轉(zhuǎn)點(diǎn)動(dòng)開(kāi)關(guān)閉合時(shí)，電動(dòng)機(jī)順時(shí)針?lè)较蛐D(zhuǎn)。但這要有一個(gè)前題，即與輸入點(diǎn)I0.3相連的電動(dòng)機(jī)電路斷路器和與輸入點(diǎn)I0.2相連的停機(jī)開(kāi)關(guān)都沒(méi)有動(dòng)作。如果需要電動(dòng)機(jī)反轉(zhuǎn)的話。只有按下停機(jī)開(kāi)關(guān)，并等待5秒鐘之后，才可以改變電動(dòng)機(jī)的旋轉(zhuǎn)方向。這樣做是為了讓電動(dòng)機(jī)有足夠的時(shí)間剎車停轉(zhuǎn)，然后再反向起動(dòng)。如果與I0.0和I0.1相連的點(diǎn)動(dòng)開(kāi)關(guān)同時(shí)按下，電動(dòng)機(jī)停轉(zhuǎn)，并且不起動(dòng)。程序Network1//逆時(shí)針?lè)较蛐D(zhuǎn)使能LD I0.2 //如果無(wú)停機(jī)命令（OFF），A I0.3 //且電路斷路器未動(dòng)作AN M1.1 //且順時(shí)針?lè)较蛐D(zhuǎn)狀態(tài)位未置位，= M2.1 //則逆時(shí)針?lè)较蛐D(zhuǎn)使能位M2.1=1。Network2//順時(shí)針?lè)较蛐D(zhuǎn)使能LD I0.2 //如果無(wú)停機(jī)命令（OFF），A I0.3 //且電路斷路器未動(dòng)作AN M1.0 //且逆時(shí)針?lè)较蛐D(zhuǎn)狀態(tài)位未置位，= M2.2 //則順時(shí)針?lè)较蛐D(zhuǎn)使能位M2.2=1。Network3//逆時(shí)針?lè)较蛐D(zhuǎn)LDI0.0//如果命令電動(dòng)機(jī)左轉(zhuǎn)O M1.0//或逆時(shí)針?lè)较驙顟B(tài)位，A M2.1//且逆時(shí)針?lè)较蛐D(zhuǎn)使能，= M1.0//置逆時(shí)針?lè)较蛐D(zhuǎn)狀態(tài)位M1.0=1。= Q0.0 //置電動(dòng)機(jī)起動(dòng)器輸出點(diǎn)Q0.0=1。= Q0.4 //點(diǎn)亮逆時(shí)針?lè)较蛐D(zhuǎn)信號(hào)燈。程序2Network4//順時(shí)針?lè)较蛐D(zhuǎn)LD I0.1 //如果命令電動(dòng)機(jī)右轉(zhuǎn)，O M1.1 //或順時(shí)針?lè)较驙顟B(tài)位，A M2.2 //且順時(shí)針?lè)较蛐D(zhuǎn)使能，則，= M1.1 //置順時(shí)針?lè)较蛐D(zhuǎn)狀態(tài)位M1.1=1。= Q0.1 //置電動(dòng)機(jī)起動(dòng)器輸出點(diǎn)Q0.1=1。= Q0.3 //點(diǎn)亮順時(shí)針?lè)较蛐D(zhuǎn)信號(hào)燈。Network5//檢測(cè)邊沿，關(guān)機(jī)過(guò)程LDNM1.0//如果既無(wú)逆時(shí)針?lè)较蛐D(zhuǎn)狀態(tài)位，AN M1.1 //也無(wú)順時(shí)針?lè)较蛐D(zhuǎn)狀態(tài)位，則，= Q0.2 //點(diǎn)亮關(guān)機(jī)輸出信號(hào)指示燈。Network6LD Q0.2 //若關(guān)機(jī)時(shí)，ED //檢測(cè)下降沿，則，S M2.3，1//將輔助存儲(chǔ)器標(biāo)志位置位。N程序3Network7LDM2.3//若為關(guān)機(jī)狀態(tài)，則MOVW+500,VW20//裝載重新起動(dòng)前

//必須等待的時(shí)間值

//(500*10ms=5s)TONT33,VW20//起動(dòng)重新起動(dòng)要強(qiáng)制

//等待的定時(shí)器(T33)AT33RM2.3,1//超過(guò)等待時(shí)間后，將輔助

//存儲(chǔ)器標(biāo)志位復(fù)位(M2.3=0)Network8LDM2.3//輔助器存儲(chǔ)器標(biāo)志位(等待)ASM0.5//指示燈以一秒閃爍=Q0.5//點(diǎn)亮等待信號(hào)燈(Wait)MEND//主程序結(jié)束二.定時(shí)器指令輸入接點(diǎn)設(shè)定值:1~32767定時(shí)器號(hào)碼（0～255）INPTT37TON定時(shí)器分辨率（時(shí)基）有三種：1ms、10ms、100ms。定時(shí)器的分辨率由定時(shí)器號(hào)決定定時(shí)器的實(shí)際設(shè)定時(shí)間T=設(shè)定值PT×分辨率TON：接通延時(shí)定時(shí)器

TOF：斷開(kāi)延時(shí)定時(shí)器

TONR：有記憶接通延時(shí)定時(shí)器類型TS=1200*0.1=120S延時(shí)接通定時(shí)器TON其工作波形圖如下：I0.1Q0.1計(jì)時(shí)值設(shè)定值TS設(shè)定值使能輸入TONPTINT38T38TONPTINI0.11200()T38Q0.1延時(shí)斷開(kāi)定時(shí)器TOF其工作波形圖如下：I0.1Q0.1計(jì)時(shí)值設(shè)定值TS設(shè)定值使能輸入TOFPTINT38TOFPTINI0.11200T38()T38Q0.1TS=1200*0.1=120S保持型定時(shí)器TONR其工作波形圖如下：輸入端I0.1Q0.1當(dāng)前值設(shè)定值TSTS=1200*10msT4M0.1輸入端設(shè)定值TONRPTINTONRPTINI0.11200T4()T4Q0.1()T4R1M0.1最大值32767120①1ms分辯率定時(shí)器每隔1ms刷新一次，刷新定時(shí)器位和定時(shí)器當(dāng)前值，在一個(gè)掃描周期中要刷新多次，而不和掃描周期同步。②10ms分辯率定時(shí)器10ms分辯率定時(shí)器啟動(dòng)后，定時(shí)器對(duì)10ms時(shí)間間隔進(jìn)行計(jì)時(shí)。程序執(zhí)行時(shí)，在每次掃描周期的開(kāi)始對(duì)10ms定時(shí)器刷新，在一個(gè)掃描周期內(nèi)定時(shí)器位和定時(shí)器當(dāng)前值保持不變。

③100ms分辨率定時(shí)器

100ms定時(shí)器啟動(dòng)后，定時(shí)器對(duì)100ms時(shí)間間隔進(jìn)行計(jì)時(shí)。只有在定時(shí)器指令執(zhí)行時(shí)，100ms定時(shí)器的當(dāng)前值才被刷新。自復(fù)位式的定時(shí)器的用法T33錯(cuò)誤正確正確但不好好!!!T33T33T33T33IN+30Q0.0PTTONT37T37T37Timerexample15s60s3s8sTimerexample1NETWORK1LDI0.0OM0.0ANI0.1ANT43=M0.0NETWORK2LDM0.0TONT40,+50TONT41,+80TONT42,+680TONT43,+760Network1I0.0+50ENPTTONT40I0.1T43M0.0()M0.0Network2M0.0+80ENPTTONT41+680ENPTTONT42+760ENPTTONT43Timerexample1NETWORK3LDM0.0ANT40=Q0.0NETWORK4LDM0.0AT40ANT41=Q0.1NETWORK5LDM0.0AT41ANT43=Q0.2NETWORK6LDM0.0AT42ANT43=Q0.3=Q0.4Network3M0.0T40Q0.0()Network4M0.0T40T41Q0.1()Network5M0.0T41T42Q0.2()Network6M0.0T42T43Q0.3()Q0.4()三相籠型異步電動(dòng)機(jī)Y-△減壓起動(dòng)控制電路KT1、KM3和KM1吸合，定時(shí)3秒2、定時(shí)時(shí)間到，KM2和KM1吸合3、KM2和KM3互相閉鎖三相籠型異步電動(dòng)機(jī)Y-△減壓起動(dòng)控制電路KM1M3~KM2V1W1U1W2U2V2KM3L3L1L2QF1LQ0.0Q0.1Q0.2Q0.31MI0.0I0.1I0.2I0.3KM2FRSB1SB2KM3FRKM1FR停止啟動(dòng)3sDesignbasedonexperience1、KM3和KM1吸合，定時(shí)3秒2、定時(shí)時(shí)間到，KM2和KM1吸合3、KM2和KM3互相閉鎖Q0.0Q0.0KM1停止I0.0I0.1Network1Q0.0Network2T40+30ENTONPTNetwork3Q0.1T40Q0.0Q0.2Network4T40Q0.1Q0.2KM3KM2Designbasedonexperience1、KM3和KM1吸合，定時(shí)3秒2、定時(shí)時(shí)間到，KM2和KM1吸合3、KM2和KM3互相閉鎖Q0.0Q0.0KM1停止I0.0I0.1Network1T40+30ENTONPTNetwork2Q0.1T40Q0.0Q0.2T40Q0.1Q0.2KM2I0.0Q0.0I0.1I0.2Q0.1I0.3I0.4StopbuttonLcontactorKM1RightbuttonLeftbuttonLeftlimitswitchRightlimitswitchKM2RcontactorI0.1I0.0Q0.0Q0.1例子:小車自動(dòng)往返控制

要求：當(dāng)左行或右行按鈕接通時(shí)，小車在限位開(kāi)關(guān)I0.1和I0.0之間自動(dòng)往返運(yùn)動(dòng)，當(dāng)按停止按鈕I0.2時(shí)立即停止。

小車到達(dá)限位開(kāi)關(guān)時(shí)，停止10秒鐘做裝卸操作。

DesignbasedonexperienceI0.4Q0.0I0.3Q0.1I0.0I0.2右啟Q0.0LeftLeftbuttonRight左限位StopRightlimitT37I0.1？DesignbasedonexperienceQ0.1I0.1I0.2RightI0.3Q0.0右啟Left右限位StopI0.3Q0.1RightbuttonT38LeftlimitI0.0T38左右限位不能停止？DesignbasedonexperienceM0.0M0.0I0.4標(biāo)志停止I0.2I0.3設(shè)置運(yùn)行/停止標(biāo)志位DesignbasedonexperienceI0.4Q0.0I0.3Q0.1I0.0I0.2右啟Q0.0LeftLeftbuttonRight左限位StopRightlimitM0.0標(biāo)志T37I0.1DesignbasedonexperienceQ0.1I0.1I0.2RightI0.3Q0.0右啟Left右限位StopM0.0標(biāo)志I0.3Q0.1RightbuttonT38LeftlimitI0.0T38例:用定時(shí)器實(shí)現(xiàn)順序啟動(dòng)有三條帶式輸送機(jī),啟動(dòng)時(shí)要求按下啟動(dòng)按鈕I0.0時(shí),KM1先啟動(dòng),20秒后KM2啟動(dòng),再過(guò)40秒KM3啟動(dòng).KM1KM3KM2SB1I0.0//啟動(dòng)按鈕SB2I0.1//停止按鈕1LQ0.0Q0.1Q0.2Q0.31MI0.0I0.1I0.2I0.3KM2FRSB1SB2KM3FRKM1FRLDI0.0SKM1,1RM0.1,1LDT39SKM2,1T40KM3T39KM2I0.0KM1IN+600T40PTTONKM1+200T39S1SS11LDKM1TONT39,+200TONT40,+600LDT40SKM3,1M0.1R1INPTTONLDI0.1RKM3,1SM0.1,1LDT41RKM2,1T42KM1T41KM2I0.1KM3IN+600T42PTTONM0.1+400T41R1RR11LDNKM3TONT41,+400TONT42,+600LDT42RKM1,1M0.1S1INPTTONRS競(jìng)爭(zhēng)!LDI0.0SKM1,1RM0.1,1LDT39ANM0.1SKM2,1I0.0KM1S1IN+600T40PTTONKM1+200T39LDKM1TONT39,+200TONT40,+600LDT40ANM0.1SKM3,1M0.1R1INPTTON更好地改進(jìn)T39KM2S1M0.1T40KM3S1M0.1LDI0.1RKM3,1SM0.1,1LDT41AM0.1RKM2,1I0.1KM3IN+600T42PTTONM0.1+400T41R1LDNKM3TONT41,+400TONT42,+600LDT42AM0.1RKM1,1M0.1S1INPTTONT41KM2R1M0.1T42KM1R1M0.1更好地改進(jìn)LDI0.0OM0.0ANI0.1=M0.0T38LDM0.0TONT38,+200TONT39,+600IN+600T39PTTONM0.0+200INPTTON方法2M0.0M0.0I0.0I0.1M0.1M0.1I0.1I0.0LDI0.1OM0.1ANI0.0=M0.1T40LDM0.1TONT40,+400TONT41,+600IN+600T41PTTONM0.1+400INPTTON方法2KM2T38T40KM1M0.0T41LDM0.0ANT41=KM1LDT38ANT40=KM2LDT39ANM0.1=KM2KM3T39M0.1例:用定時(shí)器實(shí)現(xiàn)繞線電動(dòng)機(jī)啟動(dòng)KM1L3L1L2QFM3~KM2KM4KM3KM6KM51、KM1吸合，串入所有電阻；2、0.5秒后KM2吸合切除第一級(jí)電阻；3、3秒后KM3吸合切除第二級(jí)電阻；4、2秒后KM4吸合切除第三級(jí)電阻；5、1.5秒后KM5吸合切除第四級(jí)電阻；6、0.8秒后KM6吸合切除全部電阻；例:用定時(shí)器實(shí)現(xiàn)繞線電動(dòng)機(jī)啟動(dòng)SB1I0.0//啟動(dòng)按鈕SB2I0.1//停止按鈕1MI0.0I0.1I0.2I0.3SB1SB21LQ0.0Q0.1Q0.2Q0.3KM2FRKM3FRKM1FRKM4FR2LQ0.4Q0.5Q0.6Q0.7KM6FRKM5FRI0.4I0.5I0.6I0.7I1.0LDI0.0SKM1,1I0.0KM1IN+35T40PTTONKM1S1LDKM1TONT33,+50TONT40,+35TONT41,55TONT42,70TONT43,78+50T33INPTTO