diff --git a/data/etc/revpipyload/revpipyload.conf b/data/etc/revpipyload/revpipyload.conf
index ab69a8d..528af45 100644
--- a/data/etc/revpipyload/revpipyload.conf
+++ b/data/etc/revpipyload/revpipyload.conf
@@ -1,17 +1,17 @@
 [DEFAULT]
-autoreload=1
-autostart=1
-plcworkdir=/var/lib/revpipyload
-plcprogram=program.py
+autoreload = 1
+autostart = 1
+plcworkdir = /var/lib/revpipyload
+plcprogram = program.py
 plcarguments=
-plcuid=1000
-plcgid=1000
-plcslave=0
-plcslaveacl=
+plcuid = 1000
+plcgid = 1000
+plcslave = 0
+plcslaveacl =
 plcslaveport = 55234
-pythonversion=3
-xmlrpc=0
+pythonversion = 3
+xmlrpc = 0
 xmlrpcacl =
-xmlrpcport=55123
-zeroonerror=0
-zeroonexit=0
+xmlrpcport = 55123
+zeroonerror = 0
+zeroonexit = 0
diff --git a/revpipyload.e4p b/revpipyload.e4p
index bd9eb3b..4bf65ab 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: 2017-07-21, 22:24:05 -->
+<!-- Saved: 2017-08-26, 09:25:46 -->
 <!-- Copyright (C) 2017 Sven Sager, akira@narux.de -->
 <Project version="5.1">
   <Language>en_US</Language>
@@ -12,7 +12,7 @@
   <Version>0.5.0</Version>
   <Author>Sven Sager</Author>
   <Email>akira@narux.de</Email>
-  <Eol index="-1"/>
+  <Eol index="1"/>
   <Sources>
     <Source>revpipyload/proginit.py</Source>
     <Source>setup.py</Source>
diff --git a/revpipyload/revpipyload.py b/revpipyload/revpipyload.py
index 8ab0a01..6fac32e 100755
--- a/revpipyload/revpipyload.py
+++ b/revpipyload/revpipyload.py
@@ -597,6 +597,7 @@ class RevPiSlaveDev(Thread):
         self._deadtime = None
         self._devcon, self._addr = devcon
         self._evt_exit = Event()
+        self._writeerror = False
 
         # Sicherheitsbytes
         self.ey_dict = {}
@@ -660,6 +661,7 @@ class RevPiSlaveDev(Thread):
                         block = self._devcon.recv(length)
                     except:
                         proginit.logger.error("error while recv data to write")
+                        self._writeerror = True
                         break
                     fh_proc.seek(position)
 
@@ -671,7 +673,12 @@ class RevPiSlaveDev(Thread):
                         break
 
                 # Record seperator character
-                self._devcon.send(b'\x1e')
+                if control == b'\x1c':
+                    if self._writeerror:
+                        self._devcon.send(b'\xff')
+                    else:
+                        self._devcon.send(b'\x1e')
+                    self._writeerror = False
 
             elif cmd == b'\x06\x16':
                 # Just sync
@@ -749,6 +756,7 @@ class RevPiSlaveDev(Thread):
                 while True:
                     data = fh_pic.read(1024)
                     if data:
+                        # FIXME: Fehler fangen
                         self._devcon.send(data)
                     else:
                         fh_pic.close()