Index: simulator/plugins/__init__.py
===================================================================
diff -u -r15118be5139122e2129f00482d173d58503b338e -rf921975179b1c1ad61d841b9db5976c00432fdcc
--- simulator/plugins/__init__.py	(.../__init__.py)	(revision 15118be5139122e2129f00482d173d58503b338e)
+++ simulator/plugins/__init__.py	(.../__init__.py)	(revision f921975179b1c1ad61d841b9db5976c00432fdcc)
@@ -4,10 +4,9 @@
 import os
 
 available_plugin_folders = sorted(os.listdir('./plugins'))
-available_plugins = [] # to be used as global variable in the simulator
+available_plugins = []  # to be used as global variable in the simulator
 print('found plugin folders {}'.format(available_plugin_folders))
 for folder in available_plugin_folders:
     if not folder.startswith('__') and not folder.startswith('.'):
         exec('from .{0}.loader import Loader as {0}'.format(folder))
         available_plugins.append(folder)
-
Index: simulator/plugins/alarms/loader.py
===================================================================
diff -u -r15118be5139122e2129f00482d173d58503b338e -rf921975179b1c1ad61d841b9db5976c00432fdcc
--- simulator/plugins/alarms/loader.py	(.../loader.py)	(revision 15118be5139122e2129f00482d173d58503b338e)
+++ simulator/plugins/alarms/loader.py	(.../loader.py)	(revision f921975179b1c1ad61d841b9db5976c00432fdcc)
@@ -4,7 +4,7 @@
 import os
 from simulator.dynamicloader import DynamicLoader
 from PySide2 import QtWidgets
-from PySide2.QtCore import Slot, QObject, Qt, QSize
+from PySide2.QtCore import Slot, QObject, Qt
 from dialin.squish import denaliMessages
 from datetime import datetime
 from dialin.common.prs_defs import AlarmPriority
@@ -69,9 +69,6 @@
 
     def __init__(self):
         super().__init__(os.path.dirname(__file__))
-        # self.initialize()
-        # self.init_widgets()
-        # self.init_connections()
 
     def _init_loader(self):
         """
Index: simulator/plugins/createtreatment/loader.py
===================================================================
diff -u -r9206e36aeff354823f2c37103d79f548221cd64c -rf921975179b1c1ad61d841b9db5976c00432fdcc
--- simulator/plugins/createtreatment/loader.py	(.../loader.py)	(revision 9206e36aeff354823f2c37103d79f548221cd64c)
+++ simulator/plugins/createtreatment/loader.py	(.../loader.py)	(revision f921975179b1c1ad61d841b9db5976c00432fdcc)
@@ -6,11 +6,8 @@
 from PySide2 import QtWidgets
 from PySide2.QtCore import Slot
 from dialin.squish import denaliMessages
-from dialin import HDSimulator
 
-hd_simulator = HDSimulator()
 
-
 class Loader(DynamicLoader):
     """
     The Saline Bolus ui loader class
@@ -23,9 +20,6 @@
 
     def __init__(self):
         super().__init__(os.path.dirname(__file__))
-        # self.initialize()
-        # self.init_widgets()
-        # self.init_connections()
 
     def _init_loader(self):
         """
@@ -59,7 +53,7 @@
         the slot for accept button
         :return: none
         """
-        hd_simulator.cmd_send_start_treatment_response(1, 0)
+        self.hd_simulator.cmd_send_start_treatment_response(1, 0)
         self.lblAction.setText('Accepted ')
 
     @Slot()
Index: simulator/plugins/heparin/loader.py
===================================================================
diff -u -r9206e36aeff354823f2c37103d79f548221cd64c -rf921975179b1c1ad61d841b9db5976c00432fdcc
--- simulator/plugins/heparin/loader.py	(.../loader.py)	(revision 9206e36aeff354823f2c37103d79f548221cd64c)
+++ simulator/plugins/heparin/loader.py	(.../loader.py)	(revision f921975179b1c1ad61d841b9db5976c00432fdcc)
@@ -26,9 +26,6 @@
     def __init__(self):
         super().__init__(os.path.dirname(__file__))
         self.requested_state = txStates.HEPARIN_STATE_PAUSED
-        # self.initialize()
-        # self.init_widgets()
-        # self.init_connections()
 
     def _init_loader(self):
         """
Index: simulator/plugins/inlinebloodpressures/loader.py
===================================================================
diff -u -r9206e36aeff354823f2c37103d79f548221cd64c -rf921975179b1c1ad61d841b9db5976c00432fdcc
--- simulator/plugins/inlinebloodpressures/loader.py	(.../loader.py)	(revision 9206e36aeff354823f2c37103d79f548221cd64c)
+++ simulator/plugins/inlinebloodpressures/loader.py	(.../loader.py)	(revision f921975179b1c1ad61d841b9db5976c00432fdcc)
@@ -37,9 +37,6 @@
     def __init__(self):
         super().__init__(os.path.dirname(__file__))
         self.saline_requested_state = txStates.SALINE_BOLUS_STATE_IDLE
-        # self.initialize()
-        # self.init_widgets()
-        # self.init_connections()
 
     def _init_loader(self):
         """
Index: simulator/plugins/salinebolus/loader.py
===================================================================
diff -u -r9206e36aeff354823f2c37103d79f548221cd64c -rf921975179b1c1ad61d841b9db5976c00432fdcc
--- simulator/plugins/salinebolus/loader.py	(.../loader.py)	(revision 9206e36aeff354823f2c37103d79f548221cd64c)
+++ simulator/plugins/salinebolus/loader.py	(.../loader.py)	(revision f921975179b1c1ad61d841b9db5976c00432fdcc)
@@ -28,9 +28,6 @@
     def __init__(self):
         super().__init__(os.path.dirname(__file__))
         self.saline_requested_state = txStates.SALINE_BOLUS_STATE_IDLE
-        # self.initialize()
-        # self.init_widgets()
-        # self.init_connections()
 
     def _init_loader(self):
         """
Index: simulator/plugins/treatmentranges/loader.py
===================================================================
diff -u -r9206e36aeff354823f2c37103d79f548221cd64c -rf921975179b1c1ad61d841b9db5976c00432fdcc
--- simulator/plugins/treatmentranges/loader.py	(.../loader.py)	(revision 9206e36aeff354823f2c37103d79f548221cd64c)
+++ simulator/plugins/treatmentranges/loader.py	(.../loader.py)	(revision f921975179b1c1ad61d841b9db5976c00432fdcc)
@@ -26,9 +26,6 @@
 
     def __init__(self):
         super().__init__(os.path.dirname(__file__))
-        # self.initialize()
-        # self.init_widgets()
-        # self.init_connections()
 
     def _init_loader(self):
         """
Index: simulator/plugins/treatmentstates/loader.py
===================================================================
diff -u -r9206e36aeff354823f2c37103d79f548221cd64c -rf921975179b1c1ad61d841b9db5976c00432fdcc
--- simulator/plugins/treatmentstates/loader.py	(.../loader.py)	(revision 9206e36aeff354823f2c37103d79f548221cd64c)
+++ simulator/plugins/treatmentstates/loader.py	(.../loader.py)	(revision f921975179b1c1ad61d841b9db5976c00432fdcc)
@@ -21,9 +21,6 @@
     def __init__(self):
         super().__init__(os.path.dirname(__file__))
 
-        # apply/send the initial states
-        self.do_treatment_states()
-
     def _init_loader(self):
         """
         finds and creates widgets
@@ -43,6 +40,8 @@
         self.tblUFStates.cellClicked.connect(self.do_treatment_states)
         self.tblSalineStates.cellClicked.connect(self.do_treatment_states)
         self.tblHeparinStates.cellClicked.connect(self.do_treatment_states)
+        # apply/send the initial states
+        self.do_treatment_states()
 
     def _init_widgets(self):
         """
Index: simulator/simulator/dynamicloader.py
===================================================================
diff -u -r15118be5139122e2129f00482d173d58503b338e -rf921975179b1c1ad61d841b9db5976c00432fdcc
--- simulator/simulator/dynamicloader.py	(.../dynamicloader.py)	(revision 15118be5139122e2129f00482d173d58503b338e)
+++ simulator/simulator/dynamicloader.py	(.../dynamicloader.py)	(revision f921975179b1c1ad61d841b9db5976c00432fdcc)
@@ -5,6 +5,7 @@
 from PySide2.QtUiTools import QUiLoader
 from PySide2.QtCore import QFile, QObject
 from PySide2 import QtWidgets
+from dialin import HDSimulator
 
 
 class DynamicLoader(QObject):
@@ -19,6 +20,8 @@
     loader: QUiLoader
     window: QtWidgets.QWidget
 
+    hd_simulator: HDSimulator
+
     def __init__(self, location: str):
         super().__init__(None)
         self.location = location
Index: simulator/simulator/loader.py
===================================================================
diff -u -r15118be5139122e2129f00482d173d58503b338e -rf921975179b1c1ad61d841b9db5976c00432fdcc
--- simulator/simulator/loader.py	(.../loader.py)	(revision 15118be5139122e2129f00482d173d58503b338e)
+++ simulator/simulator/loader.py	(.../loader.py)	(revision f921975179b1c1ad61d841b9db5976c00432fdcc)
@@ -14,6 +14,7 @@
 # it loads all the classes in plugin folder dynamically
 # so used * in here to load all
 from plugins import *
+from dialin import HDSimulator
 
 
 class Simulator(DynamicLoader):
@@ -33,6 +34,7 @@
         super().__init__(os.path.dirname(__file__))
         self.saline_requested_state = txStates.SALINE_BOLUS_STATE_IDLE
         if self.__check_can_bus():
+            self.__hd_simulator = HDSimulator()
             self.__init_plugins()
             self.__init_actions()
 
@@ -93,6 +95,7 @@
         :param obj: the plugin object
         :return: False if the passed obj is None
         """
+        obj.hd_simulator = self.__hd_simulator
         self.plugins.append(obj)
         wgt = obj.window
         sub = self.mdiArea.addSubWindow(wgt)