Ejemplo de divergencia simultánea y convergencia alternativa:
Diagrama de escalera:
M1002
ZRST
SET
S4
X0
S
SET
S20
S
Y0
X1
SET
SET
SET
S30
S
Y1
X2
SET
S40
S
Y2
X3
SET
S31
S
Y3
X4
SET
S41
S
Y4
X5
SET
S32
S
Y5
X6
SET
S42
S
Y6
X7
SET
S50
S
TMR
T1
SET
S60
S
Y7
X6
S4
RET
END
Diagrama SFC:
M1002
S0
S127
S4
S4
X0
S20
S20
X1
S30
S30
X2
S31
S40
X3
S32
S50
T1
S40
S60
S50
S4
S41
S50
S42
S50
T1
K10
S60
5. Diagrama Secuencial de Funciones
Y0
Y1
Y3
S31
X4
Y2
S41
Y4
X5
TMR
T1
K10
Y7
Y5
S32
X6
S42
Y6
X7
5-19