diff --git a/doc/helper.html b/doc/helper.html
index a58d308..e023644 100644
--- a/doc/helper.html
+++ b/doc/helper.html
@@ -31,6 +31,9 @@ Functions</h3>
 </tr><tr>
 <td><a style="color:#0000FF" href="#refullmatch">refullmatch</a></td>
 <td>re.fullmatch wegen alter python version aus wheezy nachgebaut.</td>
+</tr><tr>
+<td><a style="color:#0000FF" href="#revpimodio_replaceio">revpimodio_replaceio</a></td>
+<td>Importiert und ersetzt IOs in RevPiModIO.</td>
 </tr>
 </table>
 <hr /><hr />
@@ -80,5 +83,26 @@ True, wenn komplett passt sonst False
 </dd>
 </dl>
 <div align="right"><a style="color:#0000FF" href="#top">Up</a></div>
+<hr /><hr />
+<a NAME="revpimodio_replaceio" ID="revpimodio_replaceio"></a>
+<h2 style="background-color:#FFFFFF;color:#0000FF">revpimodio_replaceio</h2>
+<b>revpimodio_replaceio</b>(<i>revpi, filename</i>)
+<p>
+Importiert und ersetzt IOs in RevPiModIO.
+</p><dl>
+<dt><i>revpi</i></dt>
+<dd>
+RevPiModIO Instanz
+</dd><dt><i>filename</i></dt>
+<dd>
+Dateiname der Ersetzungsdatei
+</dd>
+</dl><dl>
+<dt>Returns:</dt>
+<dd>
+True, wenn alle IOs ersetzt werden konnten
+</dd>
+</dl>
+<div align="right"><a style="color:#0000FF" href="#top">Up</a></div>
 <hr />
 </body></html>
\ No newline at end of file
diff --git a/doc/mqttserver.html b/doc/mqttserver.html
index 43edbd9..683aea1 100644
--- a/doc/mqttserver.html
+++ b/doc/mqttserver.html
@@ -92,7 +92,7 @@ Static Methods</h3>
 <a NAME="MqttServer.__init__" ID="MqttServer.__init__"></a>
 <h3 style="background-color:#FFFFFF;color:#FF0000">
 MqttServer (Constructor)</h3>
-<b>MqttServer</b>(<i>basetopic, sendinterval, broker_address, port=1883, tls_set=False, username="", password=None, client_id="", send_events=False, write_outputs=False</i>)
+<b>MqttServer</b>(<i>basetopic, sendinterval, broker_address, port=1883, tls_set=False, username="", password=None, client_id="", send_events=False, write_outputs=False, replace_ios=None</i>)
 <p>
 Init MqttServer class.
 </p><dl>
@@ -126,6 +126,9 @@ Sendet Werte bei IO Wertaenderung
 </dd><dt><i>write_outputs</i></dt>
 <dd>
 Per MQTT auch Outputs schreiben
+</dd><dt><i>replace_ios</i></dt>
+<dd>
+Replace IOs of RevPiModIO
 </dd>
 </dl><a NAME="MqttServer._evt_io" ID="MqttServer._evt_io"></a>
 <h3 style="background-color:#FFFFFF;color:#FF0000">
diff --git a/doc/procimgserver.html b/doc/procimgserver.html
index 39b5fcf..c4b3138 100644
--- a/doc/procimgserver.html
+++ b/doc/procimgserver.html
@@ -93,13 +93,16 @@ Static Methods</h3>
 <a NAME="ProcimgServer.__init__" ID="ProcimgServer.__init__"></a>
 <h3 style="background-color:#FFFFFF;color:#FF0000">
 ProcimgServer (Constructor)</h3>
-<b>ProcimgServer</b>(<i>xmlserver</i>)
+<b>ProcimgServer</b>(<i>xmlserver, replace_ios=None</i>)
 <p>
 Instantiiert RevPiCheckServer()-Klasse.
 </p><dl>
 <dt><i>xmlserver</i></dt>
 <dd>
 XML-RPC Server
+</dd><dt><i>replace_ios</i></dt>
+<dd>
+Replace IOs of RevPiModIO
 </dd>
 </dl><a NAME="ProcimgServer.devices" ID="ProcimgServer.devices"></a>
 <h3 style="background-color:#FFFFFF;color:#FF0000">
diff --git a/eric-revpipyload.api b/eric-revpipyload.api
index a661233..c3374a7 100644
--- a/eric-revpipyload.api
+++ b/eric-revpipyload.api
@@ -4,6 +4,7 @@ helper.__license__?9
 helper._setuprt?5(pid, evt_exit)
 helper._zeroprocimg?5()
 helper.refullmatch?4(regex, string)
+helper.revpimodio_replaceio?4(revpi, filename)
 logsystem.LogReader.closeall?4()
 logsystem.LogReader.load_applog?4(start, count)
 logsystem.LogReader.load_plclog?4(start, count)
@@ -28,7 +29,7 @@ mqttserver.MqttServer.newlogfile?4()
 mqttserver.MqttServer.reload_revpimodio?4()
 mqttserver.MqttServer.run?4()
 mqttserver.MqttServer.stop?4()
-mqttserver.MqttServer?1(basetopic, sendinterval, broker_address, port=1883, tls_set=False, username="", password=None, client_id="", send_events=False, write_outputs=False)
+mqttserver.MqttServer?1(basetopic, sendinterval, broker_address, port=1883, tls_set=False, username="", password=None, client_id="", send_events=False, write_outputs=False, replace_ios=None)
 mqttserver.__author__?9
 mqttserver.__copyright__?9
 mqttserver.__license__?9
@@ -63,7 +64,7 @@ procimgserver.ProcimgServer.setvalue?4(device, io, value)
 procimgserver.ProcimgServer.start?4()
 procimgserver.ProcimgServer.stop?4()
 procimgserver.ProcimgServer.values?4()
-procimgserver.ProcimgServer?1(xmlserver)
+procimgserver.ProcimgServer?1(xmlserver, replace_ios=None)
 procimgserver.__author__?9
 procimgserver.__copyright__?9
 procimgserver.__license__?9
diff --git a/revpipyload.e4p b/revpipyload.e4p
index 50c279a..63c4f3d 100644
--- a/revpipyload.e4p
+++ b/revpipyload.e4p
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!DOCTYPE Project SYSTEM "Project-5.1.dtd">
 <!-- eric project file for project revpipyload -->
-<!-- Saved: 2019-06-10, 16:56:33 -->
+<!-- Saved: 2019-06-11, 09:23:01 -->
 <!-- Copyright (C) 2019 Sven Sager, akira@narux.de -->
 <Project version="5.1">
   <Language>en_US</Language>
@@ -9,7 +9,7 @@
   <ProgLanguage mixed="0">Python3</ProgLanguage>
   <ProjectType>Console</ProjectType>
   <Description>Dieser Loader wird über das Init-System geladen und führt das angegebene Pythonprogramm aus. Es ist für den RevolutionPi gedacht um automatisch das SPS-Programm zu starten.</Description>
-  <Version>0.7.5</Version>
+  <Version>0.7.6</Version>
   <Author>Sven Sager</Author>
   <Email>akira@narux.de</Email>
   <Eol index="1"/>
diff --git a/revpipyload/helper.py b/revpipyload/helper.py
index 915f546..34c8f81 100644
--- a/revpipyload/helper.py
+++ b/revpipyload/helper.py
@@ -5,6 +5,7 @@ __copyright__ = "Copyright (C) 2018 Sven Sager"
 __license__ = "GPLv3"
 import os
 import proginit
+from configparser import ConfigParser
 from re import match as rematch
 from subprocess import Popen, PIPE
 
@@ -117,6 +118,115 @@ def _zeroprocimg():
             )
 
 
+def revpimodio_replaceio(revpi, filename):
+    """Importiert und ersetzt IOs in RevPiModIO.
+
+    @param revpi RevPiModIO Instanz
+    @param filename Dateiname der Ersetzungsdatei
+    @return True, wenn alle IOs ersetzt werden konnten
+
+    """
+    cp = ConfigParser()
+    try:
+        with open(filename, "r") as fh:
+            cp.read_file(fh)
+    except Exception as e:
+        proginit.logger.error(
+            "could not read replace_io file '{0}' | {1}".format(filename, e)
+        )
+        return False
+
+    # Pre-check
+    lst_replace = []
+    rc = True
+    for io in cp:
+        if io == "DEFAULT":
+            continue
+
+        dict_replace = {
+            "replace": cp[io].get("replace", ""),
+            "frm": cp[io].get("frm"),
+            "bmk": cp[io].get("bmk", ""),
+            "byteorder": cp[io].get("byteorder", "little"),
+        }
+
+        if dict_replace["replace"] in revpi.io:
+
+            # Byteorder prüfen
+            if not (dict_replace["byteorder"] == "little" or
+                    dict_replace["byteorder"] == "big"):
+                proginit.logger.error(
+                    "byteorder of '{0}' must be 'little' or 'big'".format(io)
+                )
+                rc = False
+                continue
+
+            if dict_replace["frm"] == "?":
+
+                # Convert defaultvalue from config file
+                try:
+                    dict_replace["default"] = cp[io].getboolean("defaultvalue")
+                except Exception:
+                    proginit.logger.error(
+                        "could not convert '{0}' defaultvalue '{1}' to boolean"
+                        "".format(io, cp[io].get("defaultvalue"))
+                    )
+                    rc = False
+                    continue
+
+                # Get bitaddress
+                try:
+                    dict_replace["bitaddress"] = cp[io].getint("bitaddress", 0)
+                except Exception:
+                    proginit.logger.error(
+                        "could not convert '{0}' bitaddress '{1}' to integer"
+                        "".format(io, cp[io].get("bitaddress"))
+                    )
+                    rc = False
+                    continue
+
+            else:
+                # Convert defaultvalue from config file
+                try:
+                    dict_replace["default"] = cp[io].getint("defaultvalue")
+                except Exception:
+                    proginit.logger.error(
+                        "could not convert '{0}' defaultvalue '{1}' to integer"
+                        "".format(io, cp[io].get("defaultvalue"))
+                    )
+                    rc = False
+                    continue
+
+        else:
+            proginit.logger.error(
+                "can not find io '{0}' to replace with '{1}'"
+                "".format(dict_replace["replace"], io)
+            )
+            rc = False
+            continue
+
+        # Replace_IO übernehmen
+        lst_replace.append(dict_replace)
+
+    if not rc:
+        # Abbrechen, wenn IO-Verarbeitung einen Fehler hatte
+        return False
+
+    # Replace IOs
+    for dict_replace in lst_replace:
+
+        # FIXME: Hier können Fehler auftreten !!!
+
+        revpi.io[dict_replace["replace"]].replace_io(
+            io,
+            frm=dict_replace["frm"],
+            bmk=dict_replace["bmk"],
+            bit=dict_replace["bitaddress"],
+            byteorder=dict_replace["byteorder"],
+            defaultvalue=dict_replace["default"]
+        )
+
+
 def refullmatch(regex, string):
     """re.fullmatch wegen alter python version aus wheezy nachgebaut.
 
diff --git a/revpipyload/procimgserver.py b/revpipyload/procimgserver.py
index ad55575..25d3739 100644
--- a/revpipyload/procimgserver.py
+++ b/revpipyload/procimgserver.py
@@ -11,6 +11,7 @@ __license__ = "GPLv3"
 import pickle
 import proginit
 import revpimodio2
+from .helper import revpimodio_replaceio
 from xmlrpc.client import Binary
 
 
@@ -108,14 +109,12 @@ class ProcimgServer():
             return e
 
         # Replace IOs of RevPiModIO
-        if self.replace_ios:
-            try:
-                self.rpi.import_replaced_ios(self.replace_ios)
-            except Exception as e:
-                proginit.logger.error(
-                    "could not load replaced ios into RevPiModIO - using "
-                    "defaults | {0}".format(e)
-                )
+        if self.replace_ios and \
+                not revpimodio_replaceio(self.rpi, self.replace_ios):
+            proginit.logger.error(
+                "could not load all or some replaced ios into RevPiModIO - "
+                "see log file"
+            )
 
         # NOTE: Warum das?
         self.rpi.syncoutputs(device=0)
diff --git a/revpipyload/revpipyload.py b/revpipyload/revpipyload.py
index 33fe736..75818c3 100755
--- a/revpipyload/revpipyload.py
+++ b/revpipyload/revpipyload.py
@@ -28,7 +28,7 @@ begrenzt werden!
 __author__ = "Sven Sager"
 __copyright__ = "Copyright (C) 2018 Sven Sager"
 __license__ = "GPLv3"
-__version__ = "0.7.5"
+__version__ = "0.7.6"
 import gzip
 import logsystem
 import picontrolserver
diff --git a/setup.py b/setup.py
index 3e5a623..cef2511 100644
--- a/setup.py
+++ b/setup.py
@@ -27,7 +27,7 @@ setup(
 
     license="LGPLv3",
     name="revpipyload",
-    version="0.7.5",
+    version="0.7.6",
 
     scripts=["data/revpipyload"],