122.12.1.12.1.22.1.32.1.42.22.2.12.2.22.2.32.2.42.2.52.32.3.12.3.222.12.1.1(),32.1.20101()()()()()0()100111042.1.21原始状态动作状态常开开关、接点常闭开关、接点原始状态的值动作状态的值原始状态的值动作状态的值输入元件010110记忆元件010110无记忆元件01(无开关、接点)52.1.3SB1SB2SB3SB4HL1HL2HL3S1S2S3（a）（b）（c）2-1HL1SB1SB2,HL2SB3SB4,HL3(S1S2)S362.1.4HDBBCCAHDA→2-21()C=ABH=CDH=ABD=(AB)D72.1.41SB4SB3HL2000110110111SB1SB2SB3SB4HL1HL2HL3S1S2S3（a）（b）（c）SB1SB2HL10001101100012-22-300=001=001=011=100=001=101=111=182.1.42S2S1E000110110110E=S2S1S2S1S2S1ES2S1S2S1E控制电路(画法1)控制电路(画法2)2-32-192.1.43S2S1abcdefg0010000110012110110111311110011040110011a=d=S2S1S2S1=(S2S2)S1=S1b=g=S1S2c=S2e=S2f=S12-212342-62-6102.1.44K1K1K2K2fadbgceRafbecdg2-4112.1.45ABCYACY=BACAC=(BAA)C=(BA)C2-6YBAC2-5-32-6-52-32-5122.1.462()132.1.47KMSB1SB2KMKMSB1SB2KM(b)起动优先电路(a)停止优先电路SB1SB2KMSB1SB2KM010101010101KM=SB2(SB1+KM)KM=SB1+SB2KM2-7142.22.2.1()UVWML1L2L3KM1QSFUFRUVWML1L2L3KM1QFFRKMSB1SB2KMFRFU1FU1主电路之1主电路之2控制电路1.(1)(2)2-8152.2.11KMSB1SB2KMFRSB4SB3KMSB1SB2KMFRSB4SB3SB6SB5(a)(b)2-92.2-9(a)22-9(b)162.2.12KMKAKASB1SB2SB3FRKAKMKMSB1SB2SB3FRSAKMKMSB1SB2FR(a)(b)(c)2-103.172.2.131234512345SB3SB3SB3SB3KM12345SB3SB3KMΔt1Δt2Δt3Δt4Δt1Δt2Δt3Δt42-1101101001182.2.14KM2KM1KM2KM1KM2KM1KM2KM1SB1SB2SB1SB2KM2KM1(a)输入互锁(b)输出互锁(c)输入、输出互锁SB1SB22-124.192.2.15UVWML1L2L3KM1KM2QSFUFRKM1KM2