diff --git a/CHANGELOG.md b/CHANGELOG.md
index b4dfcd5..02653d4 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,6 @@
-# 0.5.1 - xx/xx/2017
+# 0.5.1 - 28/10/2017
 - Added events managemets
+- Added support for zones not subject to rainfall (with parameter EVx_NORAIN)
 
 # 0.5.0 - 12/10/2017
 - Implemented driver subsystem for interfacing with other board
diff --git a/include/rain.include.sh b/include/rain.include.sh
index c3345be..131af9a 100644
--- a/include/rain.include.sh
+++ b/include/rain.include.sh
@@ -105,10 +105,12 @@ function close_all_for_rain {
 		do
 			local a=EV"$i"_ALIAS
 			local al=${!a}
+			local a=EV"$i"_NORAIN
+			local evnorain=${!a}
 			ev_status $al
 			local state=$?
 			#echo "$al = $state"
-			if [ "$state" = "1" ]; then
+			if [ "$state" = "1" ] && [ "$evnorain" != "1" ]; then
 				ev_close $al
 				log_write "close_all_for_rain - Close solenoid '$al' for rain"
 			fi
diff --git a/piGarden.sh b/piGarden.sh
index ecc11f9..079bcff 100755
--- a/piGarden.sh
+++ b/piGarden.sh
@@ -85,7 +85,13 @@ function ev_open {
 
 	cron_del open_in $1 > /dev/null 2>&1
 
-	if [ ! "$2" = "force" ]; then
+	# Dall'alias dell'elettrovalvola recupero il numero e dal numero recupero gpio da usare
+	ev_alias2number $1
+	local EVNUM=$?
+	local g=`ev_number2gpio $EVNUM`
+	local EVNORAIN=`ev_number2norain $EVNUM`
+
+	if [ ! "$2" = "force" ] && [ "$EVNORAIN" != "1" ]; then
 		if [[ "$NOT_IRRIGATE_IF_RAIN_ONLINE" -gt 0 && -f $STATUS_DIR/last_rain_online ]]; then
 			local last_rain=`cat $STATUS_DIR/last_rain_online`
 			local now=`date +%s`
@@ -124,11 +130,6 @@ function ev_open {
 		return
 	fi
 
-	# Dall'alias dell'elettrovalvola recupero il numero e dal numero recupero gpio da usare
-	ev_alias2number $1
-	EVNUM=$?
-	g=`ev_number2gpio $EVNUM`
-
 	lock
 
 	# Gestisce l'apertura dell'elettrovalvola in base alla tipologia (monostabile / bistabile) 
@@ -388,11 +389,20 @@ function alias_exists {
 # $1 numero elettrovalvola
 #
 function ev_number2gpio {
-#	echo "numero ev $1"
-	i=$1
-	g=EV"$i"_GPIO
-	gv=${!g}
-#	echo "gv = $gv"
+	local i=$1
+	local g=EV"$i"_GPIO
+	local gv=${!g}
+	echo "$gv"
+}
+
+#
+# Recupera il valore norain associato ad una elettrovalvola
+# $1 numero elettrovalvola
+#
+function ev_number2norain {
+	local i=$1
+	local g=EV"$i"_NORAIN
+	local gv=${!g}
 	echo "$gv"
 }