Fix missing params MBus

IOB-WIN-FORM/Iob/Generic.Public.cs

@@ -3124,7 +3124,7 @@ namespace IOB_WIN_FORM.Iob
                     if (!DemoOut)
                     {
                         // SE server alive...
-                        if (checkServerAlive || false)
+                        if (checkServerAlive)
                         {
                             // chiamo URL!
                             string answ = callUrlWithPayload(lastUrl, payload, doAsync);

IOB-WIN-MBUS/IobModbustTCP/ModbusTCP.cs

@@ -219,8 +219,16 @@ namespace IOB_WIN_MBUS.IobModbusTCP
             Random rnd = new Random();
             int minWait = 40;
             int maxWait = 60;
-            int.TryParse(getOptPar("minWait"), out minWait);
-            int.TryParse(getOptPar("maxWait"), out maxWait);
+            string sMinWait = getOptPar("minWait");
+            if (!string.IsNullOrEmpty(sMinWait))
+            {
+                int.TryParse(sMinWait, out minWait);
+            }
+            string sMaxWait = getOptPar("minWait");
+            if (!string.IsNullOrEmpty(sMaxWait))
+            {
+                int.TryParse(sMaxWait, out maxWait);
+            }
             // valore non presente in vers default... se gestito fare override
             Dictionary<string, string> outVal = new Dictionary<string, string>();
             if (utils.CRB("enableTSVC"))
@@ -1111,8 +1119,10 @@ namespace IOB_WIN_MBUS.IobModbusTCP
 
 #endif
                     var strMaxError = getOptPar("MAX_ERROR_READ");
-                    int.TryParse(strMaxError, out maxErrorRead);
-
+                    if (!string.IsNullOrEmpty(strMaxError))
+                    {
+                        int.TryParse(strMaxError, out maxErrorRead);
+                    }
                     //if ((enableByApp || enableByIob) && !(disableByIob))
                     if (enabPzCnt)
                     {