Dear all Genious,

I have faced a problem with s7 200 PLC. I have a old plc with a program by another programmer. In that program he used I0.0 for read pulses from a inductive sensor. but he didn"t use HSC.

he use only two timer and a MOV command like below

           I0.0

>>   ----I I-------[T120] with +200 ms

           I0.0

>>   ----I/I-------[T121] with +200 ms

          T120

>>   ----I I---------------------------[MOV    +0    VW890]

                                       I

         T121                     I

     ------I I------------------

anybody pls help me. how can it possible

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Split from CALCULATE RPM.

MynulBoss

Dear all Genious,

I have faced a problem with s7 200 PLC. I have a old plc with a program by another programmer. In that program he used I0.0 for read pulses from a inductive sensor. but he didn"t use HSC.

he use only two timer and a MOV command like below

           I0.0

>>   ----I I-------[T120] with +200 ms

           I0.0

>>   ----I/I-------[T121] with +200 ms

          T120

>>   ----I I---------------------------[MOV    +0    VW890]

                                       I

         T121                     I

     ------I I------------------

anybody pls help me. how can it possible

Hello.

That code piece only makes the VW890 zero. Look at the bigger picture. Search where is VW890 used elsewhere in the program.

Bye.
 - Dan