--- a/bacnet/bacnet.py	Fri Jul 10 11:15:41 2020 +0200
+++ b/bacnet/bacnet.py	Mon Jul 13 13:56:42 2020 +0200
@@ -790,6 +790,6 @@
         runtimefile.close()
 
         return ([(Generated_BACnet_c_mainfile_name, CFLAGS)], LDFLAGS, True,
-                ("runtime_bacnet_websettings_%s.py" % location_str, open(runtimefile_path, "rb")),
+                ("runtime_%s_bacnet_websettings.py" % location_str, open(runtimefile_path, "rb")),
         )
         #return [(Generated_BACnet_c_mainfile_name, CFLAGS)], LDFLAGS, True, ('extrafile1.txt', extra_file_handle)

--- a/bacnet/web_settings.py	Fri Jul 10 11:15:41 2020 +0200
+++ b/bacnet/web_settings.py	Mon Jul 13 13:56:42 2020 +0200
@@ -295,7 +295,7 @@
 
 
 # location_str is replaced by extension's value in CTNGenerateC call
-def _runtime_bacnet_websettings_%(location_str)s_init():
+def _runtime_%(location_str)s_bacnet_websettings_init():
     """
     # Callback function, called (by PLCObject.py) when a new PLC program
     # (i.e. XXX.so file) is transfered to the PLC runtime
@@ -383,7 +383,7 @@
 
 
 # location_str is replaced by extension's value in CTNGenerateC call
-def _runtime_bacnet_websettings_%(location_str)s_cleanup():
+def _runtime_%(location_str)s_bacnet_websettings_cleanup():
     """
     # Callback function, called (by PLCObject.py) when a PLC program is unloaded from memory
     """

--- a/etherlab/EthercatMaster.py	Fri Jul 10 11:15:41 2020 +0200
+++ b/etherlab/EthercatMaster.py	Mon Jul 13 13:56:42 2020 +0200
@@ -97,6 +97,8 @@
         return ((["etherlab_ext"], [(Gen_etherlabfile_path, IECCFLAGS)], True), "",
                 ("runtime_etherlab.py", open(GetLocalPath("runtime_etherlab.py"))))
 
+                # TODO : rename to match runtime_{location}_extname.py format
+
 # --------------------------------------------------
 #                 Ethercat MASTER
 # --------------------------------------------------

--- a/etherlab/runtime_etherlab.py	Fri Jul 10 11:15:41 2020 +0200
+++ b/etherlab/runtime_etherlab.py	Mon Jul 13 13:56:42 2020 +0200
@@ -114,6 +114,7 @@
         time.sleep(0.5)
 
 
+# TODO : rename to match _runtime_{location}_extname_init() format
 def _runtime_etherlab_init():
     global KMSGPollThread, StopKMSGThread
     StopKMSGThread = False
@@ -121,6 +122,7 @@
     KMSGPollThread.start()
 
 
+# TODO : rename to match _runtime_{location}_extname_cleanup() format
 def _runtime_etherlab_cleanup():
     global KMSGPollThread, StopKMSGThread, SDOThread
     try:

--- a/modbus/modbus.py	Fri Jul 10 11:15:41 2020 +0200
+++ b/modbus/modbus.py	Mon Jul 13 13:56:42 2020 +0200
@@ -1006,5 +1006,5 @@
         runtimefile.close()
 
         return ([(Gen_MB_c_path, ' -I"' + ModbusPath + '"')], LDFLAGS, True,
-                ("runtime_modbus_websettings_%s.py" % location_str, open(runtimefile_path, "rb")),
+                ("runtime_%s_modbus_websettings.py" % location_str, open(runtimefile_path, "rb")),
         )

--- a/modbus/web_settings.py	Fri Jul 10 11:15:41 2020 +0200
+++ b/modbus/web_settings.py	Mon Jul 13 13:56:42 2020 +0200
@@ -526,7 +526,7 @@
 
 
 
-def _runtime_modbus_websettings_%(location_str)s_init():
+def _runtime_%(location_str)s_modbus_websettings_init():
     """
     Callback function, called (by PLCObject.py) when a new PLC program
     (i.e. XXX.so file) is transfered to the PLC runtime
@@ -609,7 +609,7 @@
 
 
 
-def _runtime_modbus_websettings_%(location_str)s_cleanup():
+def _runtime_%(location_str)s_modbus_websettings_cleanup():
     """
     Callback function, called (by PLCObject.py) when a PLC program is unloaded from memory
     """

--- a/svghmi/svghmi.py	Fri Jul 10 11:15:41 2020 +0200
+++ b/svghmi/svghmi.py	Mon Jul 13 13:56:42 2020 +0200
@@ -334,13 +334,16 @@
         svghmiservercode = svghmiserverfile.read()
         svghmiserverfile.close()
 
-        runtimefile_path = os.path.join(buildpath, "runtime_svghmi.py")
+        runtimefile_path = os.path.join(buildpath, "runtime_00_svghmi.py")
         runtimefile = open(runtimefile_path, 'w')
         runtimefile.write(svghmiservercode)
         runtimefile.close()
 
         return ((["svghmi"], [(gen_svghmi_c_path, IECCFLAGS)], True), "",
-                ("runtime_svghmi0.py", open(runtimefile_path, "rb")))
+                ("runtime_00_svghmi.py", open(runtimefile_path, "rb")))
+                #         ^
+                # note the double zero after "runtime_", 
+                # to ensure placement before other CTN generated code in execution order
 
 
 class HMITreeSelector(wx.TreeCtrl):
@@ -566,7 +569,7 @@
                 repr(shlex.split(given_command.format(port="8008", name=view_name))) +
                 ")") if given_command else "pass # no command given"
 
-        runtimefile_path = os.path.join(buildpath, "runtime_svghmi1_%s.py" % location_str)
+        runtimefile_path = os.path.join(buildpath, "runtime_%s_svghmi_.py" % location_str)
         runtimefile = open(runtimefile_path, 'w')
         runtimefile.write("""
 # TODO : multiple watchdog (one for each svghmi instance)
@@ -575,7 +578,7 @@
 
 svghmi_watchdog = None
 
-def _runtime_svghmi1_{location}_start():
+def _runtime_{location}_svghmi_start():
     global svghmi_watchdog
     svghmi_root.putChild(
         '{view_name}',
@@ -589,7 +592,7 @@
         {watchdog_interval}, 
         svghmi_watchdog_trigger)
 
-def _runtime_svghmi1_{location}_stop():
+def _runtime_{location}_svghmi_stop():
     global svghmi_watchdog
     if svghmi_watchdog is not None:
         svghmi_watchdog.cancel()
@@ -608,7 +611,7 @@
 
         runtimefile.close()
 
-        res += (("runtime_svghmi1_%s.py" % location_str, open(runtimefile_path, "rb")),)
+        res += (("runtime_%s_svghmi.py" % location_str, open(runtimefile_path, "rb")),)
 
         return res
 

--- a/svghmi/svghmi_server.py	Fri Jul 10 11:15:41 2020 +0200
+++ b/svghmi/svghmi_server.py	Mon Jul 13 13:56:42 2020 +0200
@@ -167,7 +167,7 @@
     
 
 # Called by PLCObject at start
-def _runtime_svghmi0_start():
+def _runtime_00_svghmi_start():
     global svghmi_listener, svghmi_root, svghmi_send_thread
 
     svghmi_root = Resource()
@@ -181,7 +181,7 @@
 
 
 # Called by PLCObject at stop
-def _runtime_svghmi0_stop():
+def _runtime_00_svghmi_stop():
     global svghmi_listener, svghmi_root, svghmi_send_thread, svghmi_session
 
     if svghmi_session is not None: