diff --git a/src/revpimodio2/device.py b/src/revpimodio2/device.py
index f2089e1..63a690b 100644
--- a/src/revpimodio2/device.py
+++ b/src/revpimodio2/device.py
@@ -156,7 +156,6 @@ class Device(object):
         self._selfupdate = False
         self._shared_procimg = False
         self._shared_write = set()
-        self.shared_procimg(parentmodio._shared_procimg)  # Set with register
 
         # Wertzuweisung aus dict_device
         self._name = dict_device.get("name")
diff --git a/src/revpimodio2/modio.py b/src/revpimodio2/modio.py
index 67a8fee..fbe7bfb 100644
--- a/src/revpimodio2/modio.py
+++ b/src/revpimodio2/modio.py
@@ -71,7 +71,7 @@ class RevPiModIO(object):
         "_length", "_looprunning", "_lst_devselect", "_lst_refresh", \
         "_maxioerrors", "_monitoring", "_myfh", "_myfh_lck", \
         "_procimg", "_replace_io_file", "_run_on_pi", \
-        "_set_device_based_cycle_time", "_simulator", "_shared_procimg", \
+        "_set_device_based_cycle_time", "_simulator", "_init_shared_procimg", \
         "_syncoutputs", "_th_mainloop", "_waitexit", \
         "app", "core", "device", "exitsignal", "io", "summary"
 
@@ -117,7 +117,7 @@ class RevPiModIO(object):
         self._procimg = "/dev/piControl0" if procimg is None else procimg
         self._set_device_based_cycle_time = True
         self._simulator = simulator
-        self._shared_procimg = shared_procimg or direct_output
+        self._init_shared_procimg = shared_procimg or direct_output
         self._syncoutputs = syncoutputs
 
         # TODO: bei simulator und procimg prüfen ob datei existiert / anlegen?
@@ -363,6 +363,9 @@ class RevPiModIO(object):
                     err_names_check[dev_new.name] = []
                 err_names_check[dev_new.name].append(str(dev_new.position))
 
+                # Set shared_procimg mode, if requested on instantiation
+                dev_new.shared_procimg(self._init_shared_procimg)
+
                 # DeviceList für direkten Zugriff aufbauen
                 setattr(self.device, dev_new.name, dev_new)