Lenze DDS Function library PLCToolBox Manual de usuario descargar pdf (Pagina 21)

Function library LenzePLCToolBox.lib

Functions/function blocks

2.13 L_TBResetBitOfDword

2−13

L LenzePLCToolBox.lib EN 1.5

2.13 L_TBResetBitOfDword

DWORD L_TBResetBitOfDword (dwInput, byBitNr)

This function resets a single bit in a value of type "double word" to 0".

L_TBResetBitOfDword

dwInput

byBitNr

0...31

Reset

Transfer parameters

Identifiers Data type Info/possible settings

dwInput Double word Value in which a bit is to be reset to 0".

byBitNr Byte No. (0 ... 31) of the bit to be reset.

Return value: Double word

Value Meaning

0 ... 4294967295 Value of type "double word" resulting from the reset bit.

Example

Calling the function in ST:

dwValue := 105 (* dwValue = 105 dec = 01101001 bin *)

dwValue := L_TBResetBitOfDword(dwValue, 3); (* reset bit 3 *)

(* dwValue = 97 dec = 01100001 bin *)

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Lenze DDS Function library PLCToolBox Manual de usuario Pagina 21