fixed additional problems after merging

Proftaak Remote Healthcare/FietsClientV2/DataHandler.cs

@@ -142,9 +142,10 @@ namespace FietsClientV2
 
         public bool checkBikeState(bool commandMode)
         {
-            if (ComPort == null)
+            if (ComPort == null || ComPort.IsOpen)
             {
                 return false;
+                state = State.notConnected;
             }
             switch (state)
             {

Proftaak Remote Healthcare/FietsClientV2/PatientModel.cs

@@ -97,7 +97,7 @@ namespace FietsClientV2
 
         public void setPower(string power)
         {
-	    powerLog = power;
+	        powerLog = power;
             if (!dataHandler.checkBikeState(false)) return;
             dataHandler.sendData("CM");
             dataHandler.sendData("PW " + power);