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概要

順序回路を理解する。
リレー回路が、良いと閃いた。
リレー回路で説明してみた。
R1_Bは、リレー1のブレーク接点。
R2_Aは、リレー2のメイク接点。

XOR回路

片方がONなら点灯、階段の上下のスイッチ

(+)                                               (-)
|                                                   |
|  SWITCH1                                 R1       |
+----| |----------------------------------(    )----+
|                                                   |
|  SWITCH2                                 R2       |
+----| |----------------------------------(    )----+
|                                                   |
|  R1_B         R2_A                       LAMP1    |
+----| |---------| |--------+-------------(    )----+
|                           |                       |
|  R1_A         R2_B        |              LAMP2    |
+----| |---------| |--------+-------------(    )----+
|                                                   |

SWITCH1 SWITCH2 LAMP1 LAMP2
0 0 0 0
0 1 1 1
1 0 1 1
1 1 0 0

NOT回路

ONなら消灯

(+)                                               (-)
|                                                   |
|  SWITCH1                                 R1       |
+----| |----------------------------------(    )----+
|                                                   |
|  SWITCH2                                 R2       |
+----| |----------------------------------(    )----+
|                                                   |
|  R1_B                                    LAMP1    |
+----| |----------------------------------(    )----+
|                                                   |
|  R2_B                                    LAMP2    |
+----| |----------------------------------(    )----+
|                                                   |

SWITCH1 SWITCH2 LAMP1 LAMP2
0 0 1 1
0 1 1 0
1 0 0 1
1 1 0 0

AND回路

両方ONで点灯。

(+)                                               (-)
|                                                   |
|  SWITCH1   SWITCH2                       R1       |
+----| |-------| |-------+----------------(    )----+
|                        |                          |
|                        |                 R2       |
|                        +----------------(    )----+
|                                                   |
|  R1_A                                    LAMP1    |
+----| |----------------------------------(    )----+
|                                                   |
|  R2_A                                    LAMP2    |
+----| |----------------------------------(    )----+
|                                                   |

SWITCH1 SWITCH2 LAMP1 LAMP2
0 0 0 0
0 1 0 0
1 0 0 0
1 1 1 1

OR回路

どちらかONなら点灯

(+)                                               (-)
|                                                   |
|  SWITCH1                                 R1       |
+----| |-----------------+----------------(    )----+
|                        |                          |
|  SWITCH2               |                 R2       |
+----| |-----------------+----------------(    )----+
|                                                   |
|  R1_A                                    LAMP1    |
+----| |----------------------------------(    )----+
|                                                   |
|  R2_A                                    LAMP2    |
+----| |----------------------------------(    )----+
|                                                   |

SWITCH1 SWITCH2 LAMP1 LAMP2
0 0 0 0
0 1 1 1
1 0 1 1
1 1 1 1

NAND回路

両方ONで消灯。

(+)                                               (-)
|                                                   |
|  SWITCH1   SWITCH2                       R1       |
+----| |-------| |-------+----------------(    )----+
|                        |                          |
|                        |                 R2       |
|                        +----------------(    )----+
|                                                   |
|  R1_B                                    LAMP1    |
+----| |----------------------------------(    )----+
|                                                   |
|  R2_B                                    LAMP2    |
+----| |----------------------------------(    )----+
|                                                   |

SWITCH1 SWITCH2 LAMP1 LAMP2
0 0 1 1
0 1 1 1
1 0 1 1
1 1 0 0

NOR回路

両方OFFなら点灯。

(+)                                               (-)
|                                                   |
|  SWITCH1                                 R1       |
+----| |-----------------+----------------(    )----+
|                        |                          |
|  SWITCH2               |                 R2       |
+----| |-----------------+----------------(    )----+
|                                                   |
|  R1_B                                    LAMP1    |
+----| |----------------------------------(    )----+
|                                                   |
|  R2_B                                    LAMP2    |
+----| |----------------------------------(    )----+
|                                                   |

SWITCH1 SWITCH2 LAMP1 LAMP2
0 0 1 1
0 1 0 0
1 0 0 0
1 1 0 0

LATCH回路

スイッチ1で点灯、スイッチ2で消灯。

(+)                                               (-)
|                                                   |
|  SWITCH1                   R2_b          R1       |
+----| |----------+----------| |----------(    )----+
|                 |                                 |
|  R1_A           |                                 |
+----| |----------+                                 |
|                                                   |
|  SWITCH2                                 R2       |
+----| |----------------------------------(    )----+
|                                                   |
|  R1_A                                    LAMP1    |
+----| |----------------------------------(    )----+
|                                                   |
|  R2_A                                    LAMP2    |
+----| |----------------------------------(    )----+
|                                                   |

SWITCH1 SWITCH2 LAMP1 LAMP2
0 0 0 0
1 0 1 0
0 0 1 0
0 1 0 1

以上。

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