Converting s5-115u program to S7-300 fails

Hi all!

 i'm converting an s5-115u program to S7-300.

in FB220 of S5:

 :L KF 120;
: T RS 100;

when convert to s7, it fails.In S7, what should i do?please help me
thanks All!

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Split from OBs in S5 to S7 Conversion.

meeda, thanks you very much!

But the current program, FB220 was called in OB21. when convert to s7, OB21-->OB101,then i moved ob101--->ob100, so warning in converting s5 file in simatic manager.

when convert to s7:

NETWORK

       L   120;

   //    T   BS 100;

  // *** Error in Line    1639  (FB 220):  Invalid operator. ***

Hello,

In S5, OB10 is an organisation block that is executed every "x" msec, where "X" can be set by writing to a system variable RS100.

In S7 hardware, you don't set the execution time by writing to a system variable,
but by configuration in the HWconfig. See screenshot.
There are default values for the execution time, but they can be changed.

The equivalent of OB10 in S5 is one of the OBs in the screenshot (OB30..OB38, depending on the CPU model). 

In other words, you don't need these instructions anymore.
Just comment them out or delete them.
Select an OB among OB30..OB38
Configure the execution time to 120 msec.
Place the code found in OB10in S5 into that OB you have selected in S7.