Lenze DDS Function library PLCToolBox Manuel d'utilisateur télécharger pdf (Page 20)

Function library LenzePLCToolBox.lib

Functions/function blocks

2.12 L_TBResetBitOfByte

2−12

LenzePLCToolBox.lib EN 1.5

2.12 L_TBResetBitOfByte

BYTE L_TBResetBitOfByte (byInput, byBitNr)

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

L_TBResetBitOfByte

byInput

byBitNr

0...7

Reset

Transfer parameters

Identifiers Data type Info/possible settings

byInput Byte Value in which a bit is to be reset to 0".

byBitNr Byte No. (0 ... 7) of the bit to be reset.

Return value: Byte

Value Meaning

0 ... 255 Value of type "byte" resulting from the reset bit.

Example

Calling the function in ST:

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

byValue := L_TBResetBitOfByte(byValue, 3); (* reset bit 3 *)

(* byValue = 97 dec = 01100001 bin *)

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Lenze DDS Function library PLCToolBox Manuel d'utilisateur Page 20