下面的程序是三台泵的运行方式:两用一备,不管任何情况都有两台泵运行,有一台停止会自动启动备用泵.互为备用.
不知哪位大侠有更好的程序.因这程序用的时候有时会出现问题,有时会三台都运行的情况,但看程序应该没问题啊.



A "1RUN"
FN M 67.0
= M 67.1
A M 67.1
A "2RUN"
S M 70.0 3#泵启动
R M 70.3 1#泵启动
A M 67.1
A "3RUN"
S M 70.2 2#泵启动
R M 70.3 1#泵启动

A "2RUN"
FN M 67.2
= M 67.3
A M 67.3
A "1RUN"
S M 70.0 3#泵启动
R M 70.2 2#泵启动
A M 67.3
A "3RUN"
S M 70.3 1#泵启动
R M 70.2 2#泵启动

A "3RUN"
FN M 67.4
= M 67.5
A M 67.5
A "1RUN"
S M 70.2 2#泵启动
R M 70.0 3#泵启动
A M 67.5
A "2RUN"
S M 70.3 1#泵启动
R M 70.0 3#泵启动