//
L P#400.0
T MD 1570

//
L P#420.0
T MD 1574

//
L P#510.0
T MD 1588

//
L 400
T MW 1578

//
L L#0
T MD 1580

//
L 1
T MW 1584

//
m131: A M [MD 1570]
OPN "DB 81 Fault Timer"
L DBW [MD 1580]
SD T [MW 1578]
//
//


A T [MW 1578]
S M [MD 1574]

A M [MD 1574]
FP M [MD 1588]
S "M_Horn"
S "Alarm"




//
L MD 1570
L P#0.1
+D
T MD 1570

L MD 1588
L P#0.1
+D
T MD 1588

L MD 1574
L P#0.1
+D
T MD 1574

L MD 1580
L P#2.0
+D
T MD 1580

L MW 1584
L 1
+I
T MW 1584

L MW 1578
L 1
+I
T MW 1578

L MW 1584
L 160
<=I
JC m131
哪位高人能帮我解释一下这段程序吗？万分感谢！