Siemens CPU 300 moving part of a string

Bent · Aug 5, 2010

I have a string that I need to remove six numbers out of and move to an Array. I can't seem to find anything that will work for me. I tried a "BLKMOV" P#DB62.DBX2.0 BYTE8 and put it in P#DB645.DBX15.0 BYTE21. The only issue is "BLKMOV" does not like P#DB645.DBX2.0 BYTE8. Not sure what I can use.

L D[AR2P#0.0] · Aug 5, 2010

The last figure is the number of bytes to move - you are specifying a source of 8 bytes into a destination of 21 bytes, but you want to move 6 numbers - so the byte count should be 6 Are the 6 numbers always in the same position in the source string ?

KalleOlsen · Aug 5, 2010

I have never tried to have unequal byte lengths on the source and the sink. Could you try to make it "BYTE 8" on both? If it still doesn't work, check the ret_val value.

Kalle

Bent · Aug 5, 2010

I did get it to work. I made the Bytes the same. Seems to work now. Thanks!

cagliostro · Aug 6, 2010

Hi,

S7 Standard Library====>FC20 LEFT_IEC or FC32 RIGHT_IEC.
These functions can maybe do to your case....Just only for extract or remove the n numbers of the string

Siemens CPU 300 moving part of a string

Bent

Member

L D[AR2P#0.0]

Lifetime Supporting Member

KalleOlsen

Member

Bent

Member

cagliostro

Member

Similar Topics