西门子PLC有没有顺序控制呀

看了，，学习一下，不错的功底，:handshake :handshake :handshake :handshake

Network 1

LD SM0.1
S S0.1, 1 //程序运行开始时，进入第一步

Network 2
LSCR S0.1 //装载SCR指令，SCR结构开始

Network 3
LD SM0.0
S Q0.0, 1 //置位Q0.0

Network 4
LD I1.0 //I1.0为“1"时，
SCRT S0.2 //转换到下一步

Network 5
SCRE //步结束

Network 6
LSCR S0.2

Network 7
LD SM0.0
R Q0.0, 1

Network 8
LD I1.1
SCRT S0.3

Network 9
SCRE

Network 10
LSCR S0.3

Network 11
LD SM0.0
S Q0.0, 1

Network 12
LD I1.2
SCRT S0.4

Network 13
SCRE

Network 14
LSCR S0.4

Network 15
LD SM0.0
R Q0.0, 1

Network 16
LD I1.3
SCRT S0.1 //回到第一步

Network 17
SCRE

给你一个例子