写满后怎么处理呢？是fifo，还是循环写，写满后从头开始写？

(*FIFO，放到0.1s的中断中执行*)

FOR #ii := 0 TO 98 DO

    "数据块_1".mydatas[#ii] := "数据块_1".mydatas[#ii + 1];// Statement section FOR

    ;

END_FOR;

"数据块_1".mydatas[99] := "PV";

(*循环，放到0.1s的中断中执行*)

IF "mycount">99 THEN

    "mycount" := 0;// Statement section IF

    ;

END_IF;

"数据块_1".mydatas["mycount"] := "PV";

"mycount" := "mycount" + 1;