发布于 2012-08-20 13:10:06
3楼
对半分的用楼上的方法,否则就要编程序了:把0和1的保持时间作为一个大的周期,下面的程序放在100ms周期的程序中执行,runtime为计时。
L RUTIME
L RUNTIME_SP1//时间设定值1,RUNTIME_SP1<=R
=L0.0
L RUTIME
L RUNTIME_SP
<=R
=L0.1
A L0.0
S Q0.0
AN L0.0
A L0.1
R Q0.0
AN L0.1
JCN M1
L 0.0
T RUNTIME
M1:NOP 0
L 0.1
L RUNTIME
+R
T RUNTIME
RUNTIME<=RUNTIME_SP1,Q0.0=1;
RUNTIME>RUNTIME_SP1,且RUNTIME<=RUNTIME_SP,Q0.0=0;
RUNTIME>RUNTIME_SP,RUNTIME=0.0
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