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METHOD BeforeWriteOutputs : INT
VAR
	i: USINT;
	inVal:UINT;
	inSVal:USINT;
	buff: ARRAY[0..2] OF USINT;
	wStat: BOOL;
SUPER^.BeforeWriteOutputs();
IF _iState = 10 THEN
	
	inVal:= REAL_TO_UINT(udtOutput.dacVoltage * 4096 / 3.3);
	IF inVal > 4095 THEN
		inVal := 4095;
	END_IF
	IF inVal <> dacRawValue THEN
		buff[0] := MEGAIO_DAC_ADD;
		buff[1] := UINT_TO_USINT(inVal / 256);
		buff[2] := UINT_TO_USINT(inVal - (inVal / 256));
		i := DINT_TO_USINT(write(ADR(buff), 3));
		IF i = 3 THEN
			dacRawValue := inVal;
		END_IF	
	inSVal:= 0;
	FOR i:= 0 TO 7 DO
		inSVal:= inSVal + SHL(BOOL_TO_USINT(udtOutput.gpioDir[i]), i);
	IF inSVal <> gpioDirRaw THEN
		IF write8(GPIO_DIR_ADD, inSVal) THEN
			gpioDirRaw:=inSVal;
		IF gpioOutLastState[i] <> udtOutput.gpioOut[i] THEN
			IF udtOutput.gpioOut[i] THEN
				wStat:= write8(GPIO_SET_ADD, i+1);
				wStat:= write8(GPIO_CLR_ADD, i+1);
				gpioOutLastState[i] := udtOutput.gpioOut[i];
END_IF
_BeforeWriteOutputs := _BeforeWriteOutputs + 1;