Added first hmi interface implementation

PLC/01_Stationen/HeatCoolPlates/FB_HotPlate.TcPOU

@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <TcPlcObject Version="1.1.0.1">
-  <POU Name="FB_HotPlate" Id="{317a2373-f886-4e32-b683-81b726d00aac}" SpecialFunc="None">
-    <Declaration><![CDATA[FUNCTION_BLOCK FB_HotPlate
+  <POU Name="FB_Hotplate" Id="{317a2373-f886-4e32-b683-81b726d00aac}" SpecialFunc="None">
+    <Declaration><![CDATA[FUNCTION_BLOCK FB_Hotplate EXTENDS FB_PackMLGeneric
 VAR_INPUT
 	xEnable : BOOL;
 	rTargetTemp : REAL;
@@ -14,7 +14,7 @@ VAR_OUTPUT
 	uiNextReadySlot : UINT;
 END_VAR
 VAR_IN_OUT
-	stHMIInterface : ST_HCPlateHMIInterface;
+	stHMIInterface : ST_HMI_Hotplate;
 END_VAR
 VAR
 	xEnableHotplate AT %Q* : BOOL;	
@@ -41,10 +41,25 @@ VAR
 	_fbPITempControl : FB_PI;
 	_fbLimit : FB_Limit;
 	_fbPWMOut : FB_PWM;
+	
+	_xEnable : BOOL;
+	
+	_xFirstCycle : BOOL := TRUE;
 END_VAR
 ]]></Declaration>
     <Implementation>
-      <ST><![CDATA[// Call sensor fbs
+      <ST><![CDATA[IF _xFirstCycle THEN
+	_xFirstCycle := FALSE;
+	
+	stHMIInterface.stSetpoint.rMin := 0;
+	stHMIInterface.stSetpoint.rMax := 140.0;
+	stHMIInterface.stSetpoint.sUnit := '°C';
+	stHMIInterface.stSetpoint.sName := 'Temp. Hotplate';
+END_IF
+
+A_HandleHMIInput();
+
+// Call sensor fbs
 _fbTempSensor(
 	stAnalogIOConfig:= _stTempSensorConfig, 
 	stAnalogEWConfig:= _stTempSEnsorEWConfig, 
@@ -52,24 +67,15 @@ _fbTempSensor(
 	xReleaseLimitErrors:= FALSE, 
 	xReleaseHardwareErrors:= TRUE, 
 	xConfirmAlarms:= xConfirmAlarms, 
-	stHMIInterface=> );
-	
-// Clamp HMI Setpoint
-IF stHMIInterface.rSetpoint > 140.0 THEN
-	stHMIInterface.rSetpoint := 140;
-END_IF
-
-IF stHMIInterface.rSetpoint < 0.0 THEN
-	stHMIInterface.rSetpoint := 0.0;
-END_IF
+	stHMIInterface=> stHMIInterface.stPV);
 
 // For now get setpoint from HMI interface
 _fbPITempControl(
-	rSP:= stHMIInterface.rSetpoint, 
+	rSP:= stHMIInterface.stSetpoint.rValue, 
 	rPV:= _fbTempSensor.rScaledValue, 
 	rKp:= 6, 
 	rTn:= 0, 
-	xEnable:= stHMIInterface.xEnable, 
+	xEnable:= _xEnable, 
 	rMV=> _fbLimit.rIn);
 	
 _fbLimit(
@@ -83,10 +89,36 @@ _fbPWMOut(
 	timPeriod:= T#100MS,
 	xOutput=> xEnableHotplate);
 	
-// Output HMI Interface
-stHMIInterface.rPV := _fbTempSensor.rScaledValue;
+SUPER^(stPackMLHMIInterface := stHMIInterface.stStationCmds);
 ]]></ST>
     </Implementation>
+    <Action Name="A_HandleHMIInput" Id="{d22cec08-4a88-4001-b04b-e7a9775ff9a8}">
+      <Implementation>
+        <ST><![CDATA[// Clamp HMI Setpoint
+IF stHMIInterface.stSetpoint.rValue > 140.0 THEN
+	stHMIInterface.stSetpoint.rValue := 140;
+END_IF
+
+IF stHMIInterface.stSetpoint.rValue < 0.0 THEN
+	stHMIInterface.stSetpoint.rValue := 0.0;
+END_IF]]></ST>
+      </Implementation>
+    </Action>
+    <Method Name="FB_Init" Id="{b45cedd9-9c6c-4658-b56c-da5577886b8f}">
+      <Declaration><![CDATA[//FB_Init is always available implicitly and it is used primarily for initialization.
+//The return value is not evaluated. For a specific influence, you can also declare the
+//methods explicitly and provide additional code there with the standard initialization
+//code. You can evaluate the return value.
+METHOD FB_Init: BOOL
+VAR_INPUT
+    bInitRetains: BOOL; // TRUE: the retain variables are initialized (reset warm / reset cold)
+    bInCopyCode: BOOL;  // TRUE: the instance will be copied to the copy code afterward (online change)   
+END_VAR
+]]></Declaration>
+      <Implementation>
+        <ST><![CDATA[]]></ST>
+      </Implementation>
+    </Method>
     <Method Name="M_AddItem" Id="{9707459a-6558-487c-b730-c9dc92d598ed}">
       <Declaration><![CDATA[METHOD M_AddItem
 VAR_INPUT