Lenze PLC Designer PLC Designer (R2-x) Manual de usuario descargar pdf (Pagina 491)

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IEC Operators and additional norm extending functions

 DMS 3.2 EN 02/2011 TD29 489

9.9.4 Conversion between Integral Number Types

Conversion from an integral number type to another number type:

When you perform a type conversion from a larger to a smaller type, you risk losing

some information. If the number you are converting exceeds the range limit, the first

bytes for the number will be ignored.

Example in ST:

si := INT_TO_SINT(4223); (* Result is 127 *)

If you save the integer 4223 (16#107f represented hexadecimally) as a SINT variable, it

will appear as 127 (16#7f represented hexadecimally).

Example in IL:

Example in FBD:

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Lenze PLC Designer PLC Designer (R2-x) Manual de usuario Pagina 491