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位指令

I0.0. I0.1. Q 8.0. ( MCRA). Q 8.1. I 0.0. ( MCR< ). I 1.0. I 1.1. Q 8.0. ( ). M0.0. I1.2. Q 9.3. SR. Q. S. I1.3. R. 位指令. LAD. FBD. STL. 电路图. S1 (I 0.0). Q 4.0. &. I0.0. I0.1. A I0.0 A I0.1 = Q 4.0 = Q 4.1. I 0.0. Q 4.0. =. I 0.1.

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位指令

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  1. I0.0 I0.1 Q 8.0 (MCRA) Q 8.1 I 0.0 ( MCR< ) I 1.0 I 1.1 Q 8.0 ( ) M0.0 I1.2 Q 9.3 SR Q S I1.3 R 位指令

  2. LAD FBD STL 电路图 S1 (I 0.0) Q 4.0 & I0.0 I0.1 A I0.0 A I0.1 = Q 4.0 = Q 4.1 I 0.0 Q 4.0 = I 0.1 S2 (I 0.1) AND Q 4.1 Q 4.1 = L1 (Q 4.0) L2 (Q 4.1) S3 (I 0.2) I0.2 Q 4.2 O I0.2 O I0.3 = Q 4.2 Q 4.2 >=1 I 0.2 S4 (I 0.3) OR = I 0.3 I0.3 L3 (Q 4.2) 基本逻辑指令：与, 或

  3. LAD FBD STL & A I0.4 AN I0.5 O AN I0.4 A I0.5 = Q4.0 I 0.4 Q 4.0 >=1 I 0.5 = & I 0.4 I0.4 I0.5 Q 4.0 I 0.5 I0.5 I0.4 X I0.4 X I0.5 = Q4.0 Q4.0 XOR I 0.4 = I 0.5 基本逻辑指令：异或 (XOR)

  4. 例 2 例 3 信号状态 检查结果 逻辑操作结果 首次检查 信号状态 检查结果 逻辑操作结果 首次检查 信号状态 检查结果 逻辑操作结果 首次检查 A I 1.0 0 1 1 AN I 1.1 0 1 0 A M 4.0 0 1 1 = Q 4.0 = Q 4.1 A I 2.0 0 1 0 逻辑操作结果，首次检查，举例 例 1

  5. PLC程序中的解释 传感器是 ... 输入端有电压 吗? 输入端的信号状态 检查信号状态“1” 检查信号状态“0” 符号 / 指令 检查结果 符号 / 指令 检查结果 动作 LAD: LAD: 1 Yes 1 No 0 有 常开触点 常闭触点 不动作 无 0 No 0 Yes 1 FBD: FBD: & & 常闭触点 动作 无 0 No 0 Yes 1 不动作 STL: STL: 有 1 Yes 1 No 0 A I x.y AN I x.y 常开和常闭触点，传感器和符号 过程 传感器是 ... 常开触点

  6. 硬件 S1 S2 S1 S2 S1 S2 I1.0 I1.1 I1.0 I1.1 I1.0 I1.1 I 1.0 I 1.0 I 1.1 I 1.0 I 1.1 I 1.1 可编程控制器 可编程控制器 可编程控制器 Q 4.0 Q 4.0 Q 4.0 Light Light Light 软件 I1.0 I1.1 Q 4.0 I1.0 I1.1 Q 4.0 I 1.0 I 1.1 Q 4.0 FDB STL LAD & & & I 1.0 I1.0 I1.0 Q 4.0 Q 4.0 Q 4.0 I1.1 I1.1 I1.1 ....... I1.0 ....... I1.1 ....... Q 4.0 ....... I1.0 ....... I1.1 ....... Q 4.0 ....... I1.0 ....... I1.1 ....... Q 4.0 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!

  7. A I 1.0A I 1.1= Q 4.0 I 1.0 I 1.1 Q 4.0 I 1.0 & ( ) Q 4.0 赋值 = I 1.1 I 1.2 I 1.3 A I 1.2A I 1.3S Q 4.1 I 1.2 & Q 4.1 置位 Q 4.1 S I 1.3 (S) I 1.4 O I 1.4O I 1.5R Q 4.1 I 1.4 Q 4.1 >=1 Q 4.1 (R) 复位 I 1.5 R I 1.5 赋值，置位，复位 LAD FBD STL

  8. LAD FBD STL M0.0 M0.0 I1.2 A I 1.2S M 0.0A I 1.3R M 0.0A M 0.0= Q 5.3 Q 5.3 SR SR 复位优先 Q I1.2 S S Q5.3 I1.3 R Q = I1.3 R M0.0 M0.0 I1.3 A I 1.3R M 0.0A I 1.2S M 0.0A M 0.0= Q 5.3 Q 5.3 RS RS 置位优先 Q I1.3 R R Q5.3 I1.2 Q = I1.2 S S 触发器的置位 / 复位

  9. LAD FBD STL I 1.0 I 1.1 M0.0 I 2.0 I 2.1 M 1.1 Q 4.0 ( ) ( ) ( ) NOT A I 1.0 A I 1.1 = M 0.0 A M 0.0 A I 2.0 A I 2.1 NOT = M 1.1 A M 1.1 = Q 4.0 I 1.0 & M0.0 I 1.1 & I 2.0 M1.1 Q 4.0 I 2.1 = 连接器

  10. 练习8.2: 基本逻辑操作指令

  11. A I0.0 A I0.1 NOT = Q4.0 LAD FBD STL Q4.0 NOT & I0.0 I0.0 I0.1 Q4.0 ( ) NOT I0.1 = CLR CLR 不存在 不存在 SET 不存在 不存在 SET I1.6 ( SAVE) SAVE A I1.6 SAVE & I1.6 SAVE ( ) Q4.1 BR Q4.1 BR A BR = Q 4.1 BR = 15 BR 8 RLO 1 Status word 影响RLO的指令

  12. LAD MCRA // 激活 A I0.0 // 允许MCR MCR( // 打开MCR A I0.7 // NO 触点 = Q4.5 // 输出线圈 = M0.6 //输出线圈 A I0.4 // NO 触点 S Q8.0 // 置位输出 )MCR // 关闭MCR AN M5.5 // 紧急触点 AN I 2.7 // 紧急触点 = M69.0 // 输出线圈 MCRD // 取消 ( MCRA ) MCRA FBD STL I0.0 ( MCR< ) & A0.0 MCR< Q4.5 I0.7 Q4.5 ( ) = & A0.7 M0.6 M0.6 ( ) = Q8.0 Q8.0 I0.4 ( S) & A0.4 S ( MCR> ) MCR> M69.0 & I 2.7 M5.5 M5.5 M69.0 ( ) = I 2.7 ( MCRD ) MCRD 主控继电器功能

  13. LAD FBD STL Network 1 Network 1 Network 1 JU NEW1 Network 2 : : : : Network x NEW1: AN M5.5 AN I 2.7 = M69.0 NEW1 NEW1 ( JMP ) .... JMP Network 2 : : : : Network x Network 2 : : : : Network x NEW1 NEW1 M69.0 & M5.5 M69.0 M5.5 I 2.7 = I 2.7 ( ) 无条件跳转 (不依赖于RLO)

  14. LAD FBD STL & A I0.0 A I0.1 JC NEW1 NEW1 I 0.0 I 0.1 I0.0 NEW1 如果RLO=1就跳转 (JMP) JMP I0.1 & I0.2 如果RLO=0就跳转 A I0.2 A I0.3 JCN NEW2 I 0.2 I 0.3 NEW2 NEW2 (JMPN) I0.3 JMPN 条件跳转 (依赖于RLO)

  15. LAD FBD STL I1.0 & M8.0 A I1.0 A I1.1 FP M1.0 = M8.0 A I 1.0 A I 1.1 FN M1.1 = M8.1 M1.0 I1.0 I1.1 M1.0 M8.0 I1.1 P = P I1.0 & M8.1 M1.1 I1.0 I1.1 M1.1 M8.1 I1.1 N = N OB1-循环 I1.0 I1.1 RLO M1.0 M1.1 M8.0 M8.1 RLO - 边沿检测 例如

  16. LAD FBD STL I1.0 A I1.0 A ( A I1.1 FP M1.0 ) = M8.0 A I1.0 A ( A I1.1 FN M1.1 ) = M8.1 I1.1 I1.0 & I1.1 M8.0 M8.0 POS Q POS M1.0 = M_BIT M1.0 M_BIT I1.1 I1.0 I1.0 M8.1 & I1.1 NEG Q M8.1 NEG M1.1 M1.1 M_BIT = M_BIT OB1-周期 信号 - 边沿检测 I1.0 I1.1 例如 M1.0 M1.1 M8.0 M8.1

  17. 练习8.3：灌装线编程 (模式选择) 设备ON/OFF: 手动/自动模式： I 0.0 = 启动 (瞬态常开触点开关) I 0.4 = 手动/自动 (开关) 停止 (瞬态常闭触点开关) I 0.1 = I 0.5 = 接受模式 (瞬态常开触点开关) 向前点动(瞬态常开触点开关) I 0.2 = I 0.3 = 向后点动 (瞬态常开触点开关) 瓶子传感器 I 8.6 M Q 8.5 传送带向前 Q 8.6 传送带向后

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