diff --git a/doc/picontrolserver.html b/doc/picontrolserver.html
index f00c03f..62b049c 100644
--- a/doc/picontrolserver.html
+++ b/doc/picontrolserver.html
@@ -66,6 +66,9 @@ Methods</h3>
 <td><a style="color:#0000FF" href="#RevPiSlave.check_connectedacl">check_connectedacl</a></td>
 <td>Prueft bei neuen ACLs bestehende Verbindungen.</td>
 </tr><tr>
+<td><a style="color:#0000FF" href="#RevPiSlave.disconnect_all">disconnect_all</a></td>
+<td>Close all device connection.</td>
+</tr><tr>
 <td><a style="color:#0000FF" href="#RevPiSlave.newlogfile">newlogfile</a></td>
 <td>Konfiguriert die FileHandler auf neue Logdatei.</td>
 </tr><tr>
@@ -104,6 +107,12 @@ RevPiSlave.check_connectedacl</h3>
 <b>check_connectedacl</b>(<i></i>)
 <p>
 Prueft bei neuen ACLs bestehende Verbindungen.
+</p><a NAME="RevPiSlave.disconnect_all" ID="RevPiSlave.disconnect_all"></a>
+<h3 style="background-color:#FFFFFF;color:#FF0000">
+RevPiSlave.disconnect_all</h3>
+<b>disconnect_all</b>(<i></i>)
+<p>
+Close all device connection.
 </p><a NAME="RevPiSlave.newlogfile" ID="RevPiSlave.newlogfile"></a>
 <h3 style="background-color:#FFFFFF;color:#FF0000">
 RevPiSlave.newlogfile</h3>
diff --git a/eric-revpipyload.api b/eric-revpipyload.api
index 2d43877..87afb45 100644
--- a/eric-revpipyload.api
+++ b/eric-revpipyload.api
@@ -33,6 +33,7 @@ mqttserver.__author__?9
 mqttserver.__copyright__?9
 mqttserver.__license__?9
 picontrolserver.RevPiSlave.check_connectedacl?4()
+picontrolserver.RevPiSlave.disconnect_all?4()
 picontrolserver.RevPiSlave.newlogfile?4()
 picontrolserver.RevPiSlave.run?4()
 picontrolserver.RevPiSlave.stop?4()
diff --git a/revpipyload/picontrolserver.py b/revpipyload/picontrolserver.py
index ee91af0..1a2caaa 100644
--- a/revpipyload/picontrolserver.py
+++ b/revpipyload/picontrolserver.py
@@ -70,6 +70,12 @@ class RevPiSlave(Thread):
                 )
                 dev._acl = level
 
+    def disconnect_all(self):
+        """Close all device connection."""
+        # Alle Threads beenden
+        for th in self._th_dev:
+            th.stop()
+
     def newlogfile(self):
         """Konfiguriert die FileHandler auf neue Logdatei."""
         pass
@@ -80,6 +86,7 @@ class RevPiSlave(Thread):
 
         # Socket öffnen und konfigurieren bis Erfolg oder Ende
         self.so = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
+        self.so.settimeout(2)
         while not self._evt_exit.is_set():
             try:
                 self.so.bind((self._bindip, self._port))
@@ -97,9 +104,11 @@ class RevPiSlave(Thread):
             self.exitcode = -1
 
             # Verbindung annehmen
-            proginit.logger.info("accept new connection for revpinetio")
             try:
                 tup_sock = self.so.accept()
+                proginit.logger.info("accepted new connection for revpinetio")
+            except socket.timeout:
+                continue
             except Exception:
                 if not self._evt_exit.is_set():
                     proginit.logger.exception("accept exception")
diff --git a/revpipyload/revpipyload.py b/revpipyload/revpipyload.py
index a6058a1..1966b34 100755
--- a/revpipyload/revpipyload.py
+++ b/revpipyload/revpipyload.py
@@ -750,8 +750,8 @@ class RevPiPyLoad():
                 if self.mqtt and self.th_plcmqtt is not None:
                     self.th_plcmqtt.reload_revpimodio()
 
-                # ProcImgServer anhalten zum neu laden
-                self.stop_plcslave()
+                # Alle Verbindungen von ProcImgServer trennen
+                self.th_plcslave.disconnect_all()
 
                 # XML Prozessabbildserver neu laden
                 if self.xml_ps is not None: