SysCpuResetBit2 (FUN)

FUNCTION SysCpuResetBit2 : RTS_IEC_RESULT

<description>
Reset a bit in an BYTE variable in one processor step. This operation is to provide

a multitasking save operation.

</description> <result><p>RESULT: Returns the runtime system error code (see CmpErrors.library).</p></result>

InOut:

Scope

Name

Type

Comment

Return

SysCpuResetBit2

RTS_IEC_RESULT

Input

pbyValue

POINTER TO BYTE
<param name=”pbyValue” type=”IN”>Pointer to the unsigned value to reset a bit inside in one atomic

processor step</param>

ulBit

UDINT

<param name=”ulBit” type=”IN”>Bit number inside the variable to reset. 0=first bit, 7=last bit</param>