diff --git a/revpimodio2/device.py b/revpimodio2/device.py
index c3045c7..018d0fc 100644
--- a/revpimodio2/device.py
+++ b/revpimodio2/device.py
@@ -151,8 +151,9 @@ class Device(object):
         self._filelock = Lock()
         self.__my_io_list = []
         self._selfupdate = False
-        self._shared_procimg = parentmodio._shared_procimg
+        self._shared_procimg = False
         self._shared_write = []
+        self.shared_procimg(parentmodio._shared_procimg)  # Set with register
 
         # Wertzuweisung aus dict_device
         self._name = dict_device.get("name")
@@ -522,14 +523,15 @@ class Device(object):
         """
         Activate sharing of process image just for this device.
 
-        WARNING: All outputs will set immediately in process image on value
-        change. That is also inside the cycle loop!
-
         :param activate: Set True to activate process image sharing
         """
         with self._filelock:
             self._shared_write.clear()
         self._shared_procimg = True if activate else False
+        if self._shared_procimg and self not in self._modio._lst_shared:
+            self._modio._lst_shared.append(self)
+        elif not self._shared_procimg and self in self._modio._lst_shared:
+            self._modio._lst_shared.remove(self)
 
     def syncoutputs(self) -> bool:
         """
diff --git a/revpimodio2/helper.py b/revpimodio2/helper.py
index b8364c9..1a72e1c 100644
--- a/revpimodio2/helper.py
+++ b/revpimodio2/helper.py
@@ -532,32 +532,25 @@ class ProcimgWriter(Thread):
                 continue
 
             try:
+                for dev in self._modio._lst_shared:
+                    # Set shared outputs before reading process image
+                    for io in dev._shared_write:
+                        if not io._write_to_procimg():
+                            raise IOError("error on _write_to_procimg")
+                    dev._shared_write.clear()
+
                 fh.seek(0)
                 fh.readinto(bytesbuff)
 
                 for dev in self._modio._lst_refresh:
                     with dev._filelock:
-                        if self._modio._monitoring:
+                        if self._modio._monitoring or dev._shared_procimg:
                             # Inputs und Outputs in Puffer
                             dev._ba_devdata[:] = bytesbuff[dev._slc_devoff]
                             if self.__eventwork \
                                     and len(dev._dict_events) > 0 \
                                     and dev._ba_datacp != dev._ba_devdata:
                                 self.__check_change(dev)
-
-                        elif dev._shared_procimg:
-                            for io in dev._shared_write:
-                                if not io._write_to_procimg():
-                                    raise IOError("error on _write_to_procimg")
-                            dev._shared_write.clear()
-
-                            # Inputs und Outputs in Puffer
-                            dev._ba_devdata[:] = bytesbuff[dev._slc_devoff]
-                            if self.__eventwork \
-                                    and len(dev._dict_events) > 0 \
-                                    and dev._ba_datacp != dev._ba_devdata:
-                                self.__check_change(dev)
-
                         else:
                             # Inputs in Puffer, Outputs in Prozessabbild
                             dev._ba_devdata[dev._slc_inp] = \
diff --git a/revpimodio2/modio.py b/revpimodio2/modio.py
index 4473f14..b81e3be 100644
--- a/revpimodio2/modio.py
+++ b/revpimodio2/modio.py
@@ -36,6 +36,7 @@ class RevPiModIO(object):
     __slots__ = "__cleanupfunc", "_autorefresh", "_buffedwrite", "_exit_level", \
                 "_configrsc", "_shared_procimg", "_exit", "_imgwriter", "_ioerror", \
                 "_length", "_looprunning", "_lst_devselect", "_lst_refresh", \
+                "_lst_shared", \
                 "_maxioerrors", "_myfh", "_myfh_lck", "_monitoring", "_procimg", \
                 "_simulator", "_syncoutputs", "_th_mainloop", "_waitexit", \
                 "core", "app", "device", "exitsignal", "io", "summary", "_debug", \
@@ -98,6 +99,7 @@ class RevPiModIO(object):
         self._looprunning = False
         self._lst_devselect = []
         self._lst_refresh = []
+        self._lst_shared = []
         self._maxioerrors = 0
         self._myfh = None
         self._myfh_lck = Lock()
diff --git a/setup.py b/setup.py
index bb2592a..315f198 100644
--- a/setup.py
+++ b/setup.py
@@ -17,7 +17,7 @@ setup(
 
     license="LGPLv3",
     name="revpimodio2",
-    version="2.5.7d",
+    version="2.5.7e",
 
     packages=["revpimodio2"],
     python_requires="~=3.2",