c_Mq2.TcPOU

<?xml version="1.0" encoding="utf-8"?>
<TcPlcObject Version="1.1.0.1" ProductVersion="3.1.4018.9">
  <POU Name="c_Mq2" Id="{71403d3c-5007-45e7-9811-55a19c5825b0}" SpecialFunc="None">
    <Declaration><![CDATA[PROGRAM c_Mq2
VAR
	///*tTimer0 : LOCAL Buzzer Timer Defined*
	tTimer0: Timer0;
END_VAR
]]></Declaration>
    <Implementation>
      <ST><![CDATA[(**-----[3.] MQ2, SMOKE/ FIRE DETECTION ---------------------------------------**)
(**LOCAL : Smoke-detected Bit Defined as "bMq2T" **)
IF iMq2 < 6000 THEN
	bMq2T:=FALSE;
ELSIF iMq2>6000	THEN
	bMq2T:=TRUE;
END_IF
(**---------------------------------------------**)

(**LOCAL : tTimer0 Triggered-------------------**)
tTimer0(bTriggt:= TRUE);
(**--------------------------------------------**)

(**LOCAL : Latched Variable Defined as "bMq2latch" **)
bMq2latch:=bMq2T OR (bMq2latch AND (NOT bMq2dismiss));
(**------------------------------------------------**)

(**OUTPUT : Time varying Buzzer Output value, In Reference to tTimer0 Time **)
IF bMq2latch THEN
   IF (tTime < T#1S) OR ((tTime < T#4S) AND (tTime > T#2S)) THEN
	   bMq2O:=TRUE;
   ELSE
       bMq2O:=FALSE;  
   END_IF
ELSE
   bMq2O:=FALSE;   
END_IF
(**------------------------------------------------------------------------**)
(**----------------------------------------------------------------------------**)














]]></ST>
    </Implementation>
  </POU>
</TcPlcObject>