这个梯形图在转换的时候怎么说梯形图错误啊,求大家帮帮吗
M8002
--------I I--------------------------------------------------------------------------------------------------------【 SET S0 】
S0
--------I STL I--------------------------------------------------------------------------------------------------------( Y000 )
I_________________________________________【 SET S20 】
S20
--------I STL I--------------------------------------------------------------------------------------------------------( Y001 )
I_________________________________________【 SET S21 】
S21
--------I STL I--------------------------------------------------------------------------------------------------------( Y002 )
I_________________________________________【 RET 】
-------------------------------------------------------------------------------------------------------------------【 END 】
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