西门子PLC培训课件

位指令I0.0I0.1Q8.0Q8.1SRSQRI1.2I1.3M0.0Q9.3I1.0(MCR<)(MCRA)Q8.0I0.0I1.1()

L1(Q4.0)S1(I0.0)S2(I0.1)

L2(Q4.1)电路图基本逻辑指令：与,或I0.2I0.3>=1=Q4.2O I0.2O I0.3= Q4.2I0.0I0.1Q4.0Q4.1LAD=Q4.0&I0.0I0.1=Q4.1FBDA I0.0A I0.1= Q4.0= Q4.1STLI0.2I0.3Q4.2L3(Q4.2)S3(I0.2)S4(I0.3)ORAND基本逻辑指令：异或(XOR)X I0.4X I0.5= Q4.0I0.4I0.5XOR=Q4.0I0.4I0.5I0.4I0.5Q4.0LAD

>=1=Q4.0&I0.4I0.5&I0.4I0.5FBDSTLA I0.4AN I0.5OAN I0.4A I0.5= Q4.0常开和常闭触点，传感器和符号输入端

的信号

状态检查信号状态“1”符号/指令检查

结果检查信号状态“0”符号/指令检查

结果有输入端

有电压吗?无有无101Yes1LAD:

常开触点0&FBD:AIx.ySTL:ANIx.ySTL:&FBD:LAD:常闭触点

No0

Yes1

No0

No0

Yes1

Yes1

No0过程PLC程序中的解释动作不动作传感器

是...动作不动作常开

触点传感器

是...常闭

触点练习8.1:常开点与常闭点任务：当

S1动作和S2不动作时，在所有三个例子中灯应该点亮!I1.0I1.1Q4.0I1.0I1.1Q4.0.......I1.0.......I1.1.......Q4.0Q4.0I1.0I1.1&Q4.0I1.0I1.1&Q4.0I1.0I1.1&.......I1.0.......I1.1.......Q4.0.......I1.0.......I1.1.......Q4.0软件I1.0S1I1.1S2I1.0S1I1.1S2I1.0S1I1.1S2Q4.0可编程控制器LightLightLightQ4.0可编程控制器Q4.0可编程控制器FDBSTLLAD硬件I1.0I1.1Q4.0I1.0I1.1I1.0I1.1I1.0I1.1赋值，置位，复位(S)Q4.1I1.2I1.3I1.2&SQ4.1I1.3AI1.2

AI1.3

SQ4.1置位(R)Q4.1I1.4I1.4>=1RQ4.1I1.5OI1.4

OI1.5

RQ4.1复位I1.5()Q4.0I1.0I1.1I1.0&=Q4.0I1.1AI1.0

AI1.1

=Q4.0赋值LADFBDSTL连接器LADI1.0I1.1()M0.0I2.0I2.1()M1.1NOT()Q4.0A I 1.0A I 1.1= M 0.0A M 0.0A I 2.0A I 2.1NOT= M 1.1A M 1.1= Q 4.0STLI1.0I1.1&&I2.0I2.1M0.0M1.1Q4.0=FBD练习8.2:基本逻辑操作指令影响RLO的指令LADFBDSTLAI0.0AI0.1NOT=Q4.0 =Q4.0&I0.0I0.1()Q4.0NOTI0.0I0.1NOTStatusword1581BRRLO不存在不存在CLRCLR不存在不存在SETSETI1.6(SAVE

)

SAVE&I1.6SAVEAI1.6SAVE=Q4.1BRBR(

)

Q4.1BRABR=Q4.1无条件跳转(不依赖于

RLO)(JMP)NEW1Network1Network2::::NetworkxNEW1(

)M69.0I2.7M5.5LADNEW1JMP....NEW1&M5.5I2.7=M69.0Network1Network2::::NetworkxFBDNetwork1

JUNEW1Network2::::NetworkxNEW1: ANM5.5 ANI2.7 =M69.0STL条件跳转(依赖于

RLO)AI0.0AI0.1JCNEW1NEW1I0.0I0.1&I0.0I0.1JMPNEW1(JMP)如果RLO=1

就跳转AI0.2AI0.3JCNNEW2JMPNI0.2I0.3NEW2NEW2I0.2I0.3如果RLO=0

就跳转(JMPN)&LADFBDSTLRLO-边沿检测PI1.0I1.1M1.0M8.0NI1.0I1.1M1.1M8.1LADI1.0I1.1P=&M1.0M8.0I1.0I1.1N=&M1.1M8.1FBD

A I1.0 A I1.1 FP M1.0 = M8.0

A I1.0

A I1.1

FN M1.1

= M8.1

STLI1.0I1.1RLOM1.0M8.0M8.1M1.1OB1-循环例如练习8.3：灌装线编程(模式选择)Q8.5传送带向前Q8.6传送带向后瓶子传感器I8.6I0.0=I0.1=启动(瞬态常开