ProjectController.py
changeset 725 31dade089db5
parent 722 a94f361fc42e
child 726 ae63ccc29444
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/ProjectController.py	Wed May 09 00:00:50 2012 +0200
@@ -0,0 +1,1359 @@
+"""
+Base definitions for beremiz confnodes
+"""
+
+import os,sys,traceback
+import time
+import features
+import shutil
+import wx
+import re, tempfile
+from threading import Timer, Lock, Thread
+from time import localtime
+from datetime import datetime
+from weakref import WeakKeyDictionary
+
+import targets
+import connectors
+from util import MiniTextControler, opjimg, CheckPathPerm, GetClassImporter
+from ProcessLogger import ProcessLogger
+from PLCControler import PLCControler 
+from PLCOpenEditor import ProjectDialog
+from TextViewer import TextViewer
+from plcopen.structures import IEC_KEYWORDS
+from targets.typemapping import DebugTypesSize
+from discovery import DiscoveryDialog
+from ConfigTreeNode import ConfigTreeNode
+
+base_folder = os.path.split(sys.path[0])[0]
+
+MATIEC_ERROR_MODEL = re.compile(".*\.st:(\d+)-(\d+)\.\.(\d+)-(\d+): error : (.*)$")
+
+DEBUG_RETRIES_WARN = 3
+DEBUG_RETRIES_REREGISTER = 4
+
+class ProjectController(ConfigTreeNode, PLCControler):
+    """
+    This class define Root object of the confnode tree. 
+    It is responsible of :
+    - Managing project directory
+    - Building project
+    - Handling PLCOpenEditor controler and view
+    - Loading user confnodes and instanciante them as children
+    - ...
+    
+    """
+
+    # For root object, available Children Types are modules of the confnode packages.
+    CTNChildrenTypes =  [(n, GetClassImporter(c), d) for n,d,h,c in features.catalog]
+
+    XSD = """<?xml version="1.0" encoding="ISO-8859-1" ?>
+    <xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema">
+      <xsd:element name="BeremizRoot">
+        <xsd:complexType>
+          <xsd:sequence>
+            <xsd:element name="TargetType">
+              <xsd:complexType>
+                <xsd:choice minOccurs="0">
+                """+targets.targetchoices+"""
+                </xsd:choice>
+              </xsd:complexType>
+            </xsd:element>
+          </xsd:sequence>
+          <xsd:attribute name="URI_location" type="xsd:string" use="optional" default=""/>
+          <xsd:attribute name="Enable_ConfNodes" type="xsd:boolean" use="optional" default="true"/>
+        </xsd:complexType>
+      </xsd:element>
+    </xsd:schema>
+    """
+
+    def __init__(self, frame, logger):
+        PLCControler.__init__(self)
+
+        self.MandatoryParams = None
+        self.SetAppFrame(frame, logger)
+        self._builder = None
+        self._connector = None
+        
+        self.iec2c_path = os.path.join(base_folder, "matiec", "iec2c"+(".exe" if wx.Platform == '__WXMSW__' else ""))
+        self.ieclib_path = os.path.join(base_folder, "matiec", "lib")
+        
+        # Setup debug information
+        self.IECdebug_datas = {}
+        self.IECdebug_lock = Lock()
+
+        self.DebugTimer=None
+        self.ResetIECProgramsAndVariables()
+        
+        #This method are not called here... but in NewProject and OpenProject
+        #self._AddParamsMembers()
+        #self.Children = {}
+
+        # In both new or load scenario, no need to save
+        self.ChangesToSave = False
+        # root have no parent
+        self.CTNParent = None
+        # Keep track of the confnode type name
+        self.CTNType = "Beremiz"
+        self.Children = {}
+        # After __init__ root confnode is not valid
+        self.ProjectPath = None
+        self._setBuildPath(None)
+        self.DebugThread = None
+        self.debug_break = False
+        self.previous_plcstate = None
+        # copy ConfNodeMethods so that it can be later customized
+        self.ConfNodeMethods = [dic.copy() for dic in self.ConfNodeMethods]
+        self.LoadSTLibrary()
+
+    def __del__(self):
+        if self.DebugTimer:
+            self.DebugTimer.cancel()
+        self.KillDebugThread()
+
+    def SetAppFrame(self, frame, logger):
+        self.AppFrame = frame
+        self.logger = logger
+        self.StatusTimer = None
+        
+        if frame is not None:
+            # Timer to pull PLC status
+            ID_STATUSTIMER = wx.NewId()
+            self.StatusTimer = wx.Timer(self.AppFrame, ID_STATUSTIMER)
+            self.AppFrame.Bind(wx.EVT_TIMER, self.PullPLCStatusProc, self.StatusTimer)
+        
+            self.RefreshConfNodesBlockLists()
+
+    def ResetAppFrame(self, logger):
+        if self.AppFrame is not None:
+            self.AppFrame.Unbind(wx.EVT_TIMER, self.StatusTimer)
+            self.StatusTimer = None
+            self.AppFrame = None
+        
+        self.logger = logger
+
+    def ConfNodeLibraryFilePath(self):
+        return os.path.join(os.path.split(__file__)[0], "pous.xml")
+
+    def CTNTestModified(self):
+         return self.ChangesToSave or not self.ProjectIsSaved()
+
+    def CTNFullName(self):
+        return ""
+
+    def GetCTRoot(self):
+        return self
+
+    def GetIECLibPath(self):
+        return self.ieclib_path
+    
+    def GetIEC2cPath(self):
+        return self.iec2c_path
+    
+    def GetCurrentLocation(self):
+        return ()
+
+    def GetCurrentName(self):
+        return ""
+    
+    def _GetCurrentName(self):
+        return ""
+
+    def GetProjectPath(self):
+        return self.ProjectPath
+
+    def GetProjectName(self):
+        return os.path.split(self.ProjectPath)[1]
+    
+    def GetDefaultTargetName(self):
+        if wx.Platform == '__WXMSW__':
+            return "Win32"
+        else:
+            return "Linux"
+
+    def GetTarget(self):
+        target = self.BeremizRoot.getTargetType()
+        if target.getcontent() is None:
+            target = self.Classes["BeremizRoot_TargetType"]()
+            target_name = self.GetDefaultTargetName()
+            target.setcontent({"name": target_name, "value": self.Classes["TargetType_%s"%target_name]()})
+        return target
+    
+    def GetParamsAttributes(self, path = None):
+        params = ConfigTreeNode.GetParamsAttributes(self, path)
+        if params[0]["name"] == "BeremizRoot":
+            for child in params[0]["children"]:
+                if child["name"] == "TargetType" and child["value"] == '':
+                    child.update(self.GetTarget().getElementInfos("TargetType")) 
+        return params
+        
+    def SetParamsAttribute(self, path, value):
+        if path.startswith("BeremizRoot.TargetType.") and self.BeremizRoot.getTargetType().getcontent() is None:
+            self.BeremizRoot.setTargetType(self.GetTarget())
+        return ConfigTreeNode.SetParamsAttribute(self, path, value)
+        
+    # helper func to check project path write permission
+    def CheckProjectPathPerm(self, dosave=True):
+        if CheckPathPerm(self.ProjectPath):
+            return True
+        dialog = wx.MessageDialog(self.AppFrame, 
+                    _('You must have permission to work on the project\nWork on a project copy ?'),
+                    _('Error'), 
+                    wx.YES_NO | wx.NO_DEFAULT | wx.ICON_QUESTION)
+        answer = dialog.ShowModal()
+        dialog.Destroy()
+        if answer == wx.ID_YES:
+            if self.SaveProjectAs():
+                self.AppFrame.RefreshAll()
+                self.AppFrame.RefreshTitle()
+                self.AppFrame.RefreshFileMenu()
+                return True
+        return False
+    
+    def NewProject(self, ProjectPath, BuildPath=None):
+        """
+        Create a new project in an empty folder
+        @param ProjectPath: path of the folder where project have to be created
+        @param PLCParams: properties of the PLCOpen program created
+        """
+        # Verify that chosen folder is empty
+        if not os.path.isdir(ProjectPath) or len(os.listdir(ProjectPath)) > 0:
+            return _("Chosen folder isn't empty. You can't use it for a new project!")
+        
+        dialog = ProjectDialog(self.AppFrame)
+        if dialog.ShowModal() == wx.ID_OK:
+            values = dialog.GetValues()
+            values["creationDateTime"] = datetime(*localtime()[:6])
+            dialog.Destroy()
+        else:
+            dialog.Destroy()
+            return _("Project not created")
+        
+        # Create PLCOpen program
+        self.CreateNewProject(values)
+        # Change XSD into class members
+        self._AddParamsMembers()
+        self.Children = {}
+        # Keep track of the root confnode (i.e. project path)
+        self.ProjectPath = ProjectPath
+        self._setBuildPath(BuildPath)
+        # get confnodes bloclist (is that usefull at project creation?)
+        self.RefreshConfNodesBlockLists()
+        # this will create files base XML files
+        self.SaveProject()
+        return None
+        
+    def LoadProject(self, ProjectPath, BuildPath=None):
+        """
+        Load a project contained in a folder
+        @param ProjectPath: path of the project folder
+        """
+        if os.path.basename(ProjectPath) == "":
+            ProjectPath = os.path.dirname(ProjectPath)
+		# Verify that project contains a PLCOpen program
+        plc_file = os.path.join(ProjectPath, "plc.xml")
+        if not os.path.isfile(plc_file):
+            return _("Chosen folder doesn't contain a program. It's not a valid project!")
+        # Load PLCOpen file
+        result = self.OpenXMLFile(plc_file)
+        if result:
+            return result
+        # Change XSD into class members
+        self._AddParamsMembers()
+        self.Children = {}
+        # Keep track of the root confnode (i.e. project path)
+        self.ProjectPath = ProjectPath
+        self._setBuildPath(BuildPath)
+        # If dir have already be made, and file exist
+        if os.path.isdir(self.CTNPath()) and os.path.isfile(self.ConfNodeXmlFilePath()):
+            #Load the confnode.xml file into parameters members
+            result = self.LoadXMLParams()
+            if result:
+                return result
+            #Load and init all the children
+            self.LoadChildren()
+        self.RefreshConfNodesBlockLists()
+        
+        if os.path.exists(self._getBuildPath()):
+            self.EnableMethod("_Clean", True)
+
+        if os.path.isfile(self._getIECrawcodepath()):
+            self.ShowMethod("_showIECcode", True)
+
+        return None
+    
+    def CloseProject(self):
+        self.ClearChildren()
+        self.ResetAppFrame(None)
+        
+    def SaveProject(self):
+        if self.CheckProjectPathPerm(False):
+            self.SaveXMLFile(os.path.join(self.ProjectPath, 'plc.xml'))
+            result = self.CTNRequestSave()
+            if result:
+                self.logger.write_error(result)
+    
+    def SaveProjectAs(self, dosave=True):
+        # Ask user to choose a path with write permissions
+        if wx.Platform == '__WXMSW__':
+            path = os.getenv("USERPROFILE")
+        else:
+            path = os.getenv("HOME")
+        dirdialog = wx.DirDialog(self.AppFrame , _("Choose a directory to save project"), path, wx.DD_NEW_DIR_BUTTON)
+        answer = dirdialog.ShowModal()
+        dirdialog.Destroy()
+        if answer == wx.ID_OK:
+            newprojectpath = dirdialog.GetPath()
+            if os.path.isdir(newprojectpath):
+                self.ProjectPath = newprojectpath
+                if dosave:
+                    self.SaveProject()
+                self._setBuildPath(self.BuildPath)
+                return True
+        return False
+    
+    # Update PLCOpenEditor ConfNode Block types from loaded confnodes
+    def RefreshConfNodesBlockLists(self):
+        if getattr(self, "Children", None) is not None:
+            self.ClearConfNodeTypes()
+            self.AddConfNodeTypesList(self.ConfNodesTypesFactory())
+        if self.AppFrame is not None:
+            self.AppFrame.RefreshLibraryPanel()
+            self.AppFrame.RefreshEditor()
+    
+    # Update a PLCOpenEditor Pou variable location
+    def UpdateProjectVariableLocation(self, old_leading, new_leading):
+        self.Project.updateElementAddress(old_leading, new_leading)
+        self.BufferProject()
+        if self.AppFrame is not None:
+            self.AppFrame.RefreshTitle()
+            self.AppFrame.RefreshInstancesTree()
+            self.AppFrame.RefreshFileMenu()
+            self.AppFrame.RefreshEditMenu()
+            self.AppFrame.RefreshEditor()
+    
+    def GetVariableLocationTree(self):
+        '''
+        This function is meant to be overridden by confnodes.
+
+        It should returns an list of dictionaries
+        
+        - IEC_type is an IEC type like BOOL/BYTE/SINT/...
+        - location is a string of this variable's location, like "%IX0.0.0"
+        '''
+        children = []
+        for child in self.IECSortedChildren():
+            children.append(child.GetVariableLocationTree())
+        return children
+    
+    def ConfNodePath(self):
+        return os.path.split(__file__)[0]
+    
+    def CTNPath(self, CTNName=None):
+        return self.ProjectPath
+    
+    def ConfNodeXmlFilePath(self, CTNName=None):
+        return os.path.join(self.CTNPath(CTNName), "beremiz.xml")
+
+    def ParentsTypesFactory(self):
+        return self.ConfNodeTypesFactory()
+
+    def _setBuildPath(self, buildpath):
+        if CheckPathPerm(buildpath):
+            self.BuildPath = buildpath
+        else:
+            self.BuildPath = None
+        self.BuildPath = buildpath
+        self.DefaultBuildPath = None
+        if self._builder is not None:
+            self._builder.SetBuildPath(self._getBuildPath())
+
+    def _getBuildPath(self):
+        # BuildPath is defined by user
+        if self.BuildPath is not None:
+            return self.BuildPath
+        # BuildPath isn't defined by user but already created by default
+        if self.DefaultBuildPath is not None:
+            return self.DefaultBuildPath
+        # Create a build path in project folder if user has permissions
+        if CheckPathPerm(self.ProjectPath):
+            self.DefaultBuildPath = os.path.join(self.ProjectPath, "build")
+        # Create a build path in temp folder
+        else:
+            self.DefaultBuildPath = os.path.join(tempfile.mkdtemp(), os.path.basename(self.ProjectPath), "build")
+            
+        if not os.path.exists(self.DefaultBuildPath):
+            os.makedirs(self.DefaultBuildPath)
+        return self.DefaultBuildPath
+    
+    def _getExtraFilesPath(self):
+        return os.path.join(self._getBuildPath(), "extra_files")
+
+    def _getIECcodepath(self):
+        # define name for IEC code file
+        return os.path.join(self._getBuildPath(), "plc.st")
+    
+    def _getIECgeneratedcodepath(self):
+        # define name for IEC generated code file
+        return os.path.join(self._getBuildPath(), "generated_plc.st")
+    
+    def _getIECrawcodepath(self):
+        # define name for IEC raw code file
+        return os.path.join(self.CTNPath(), "raw_plc.st")
+    
+    def GetLocations(self):
+        locations = []
+        filepath = os.path.join(self._getBuildPath(),"LOCATED_VARIABLES.h")
+        if os.path.isfile(filepath):
+            # IEC2C compiler generate a list of located variables : LOCATED_VARIABLES.h
+            location_file = open(os.path.join(self._getBuildPath(),"LOCATED_VARIABLES.h"))
+            # each line of LOCATED_VARIABLES.h declares a located variable
+            lines = [line.strip() for line in location_file.readlines()]
+            # This regular expression parses the lines genereated by IEC2C
+            LOCATED_MODEL = re.compile("__LOCATED_VAR\((?P<IEC_TYPE>[A-Z]*),(?P<NAME>[_A-Za-z0-9]*),(?P<DIR>[QMI])(?:,(?P<SIZE>[XBWDL]))?,(?P<LOC>[,0-9]*)\)")
+            for line in lines:
+                # If line match RE, 
+                result = LOCATED_MODEL.match(line)
+                if result:
+                    # Get the resulting dict
+                    resdict = result.groupdict()
+                    # rewrite string for variadic location as a tuple of integers
+                    resdict['LOC'] = tuple(map(int,resdict['LOC'].split(',')))
+                    # set located size to 'X' if not given 
+                    if not resdict['SIZE']:
+                        resdict['SIZE'] = 'X'
+                    # finally store into located variable list
+                    locations.append(resdict)
+        return locations
+        
+    def _Generate_SoftPLC(self):
+        """
+        Generate SoftPLC ST/IL/SFC code out of PLCOpenEditor controller, and compile it with IEC2C
+        @param buildpath: path where files should be created
+        """
+
+        # Update PLCOpenEditor ConfNode Block types before generate ST code
+        self.RefreshConfNodesBlockLists()
+        
+        self.logger.write(_("Generating SoftPLC IEC-61131 ST/IL/SFC code...\n"))
+        buildpath = self._getBuildPath()
+        # ask PLCOpenEditor controller to write ST/IL/SFC code file
+        program, errors, warnings = self.GenerateProgram(self._getIECgeneratedcodepath())
+        if len(warnings) > 0:
+            self.logger.write_warning(_("Warnings in ST/IL/SFC code generator :\n"))
+            for warning in warnings:
+                self.logger.write_warning("%s\n"%warning)
+        if len(errors) > 0:
+            # Failed !
+            self.logger.write_error(_("Error in ST/IL/SFC code generator :\n%s\n")%errors[0])
+            return False
+        plc_file = open(self._getIECcodepath(), "w")
+        # Add ST Library from confnodes
+        plc_file.write(self.ConfNodesSTLibraryFactory())
+        if os.path.isfile(self._getIECrawcodepath()):
+            plc_file.write(open(self._getIECrawcodepath(), "r").read())
+            plc_file.write("\n")
+        plc_file.close()
+        plc_file = open(self._getIECcodepath(), "r")
+        self.ProgramOffset = 0
+        for line in plc_file.xreadlines():
+            self.ProgramOffset += 1
+        plc_file.close()
+        plc_file = open(self._getIECcodepath(), "a")
+        plc_file.write(open(self._getIECgeneratedcodepath(), "r").read())
+        plc_file.close()
+
+        self.logger.write(_("Compiling IEC Program into C code...\n"))
+
+        # Now compile IEC code into many C files
+        # files are listed to stdout, and errors to stderr. 
+        status, result, err_result = ProcessLogger(
+               self.logger,
+               "\"%s\" -f -I \"%s\" -T \"%s\" \"%s\""%(
+                         self.iec2c_path,
+                         self.ieclib_path, 
+                         buildpath,
+                         self._getIECcodepath()),
+               no_stdout=True, no_stderr=True).spin()
+        if status:
+            # Failed !
+            
+            # parse iec2c's error message. if it contains a line number,
+            # then print those lines from the generated IEC file.
+            for err_line in err_result.split('\n'):
+                self.logger.write_warning(err_line + "\n")
+
+                m_result = MATIEC_ERROR_MODEL.match(err_line)
+                if m_result is not None:
+                    first_line, first_column, last_line, last_column, error = m_result.groups()
+                    first_line, last_line = int(first_line), int(last_line)
+                    
+                    last_section = None
+                    f = open(self._getIECcodepath())
+
+                    for i, line in enumerate(f.readlines()):
+                        i = i + 1
+                        if line[0] not in '\t \r\n':
+                            last_section = line
+
+                        if first_line <= i <= last_line:
+                            if last_section is not None:
+                                self.logger.write_warning("In section: " + last_section)
+                                last_section = None # only write section once
+                            self.logger.write_warning("%04d: %s" % (i, line))
+
+                    f.close()
+            
+            self.logger.write_error(_("Error : IEC to C compiler returned %d\n")%status)
+            return False
+        
+        # Now extract C files of stdout
+        C_files = [ fname for fname in result.splitlines() if fname[-2:]==".c" or fname[-2:]==".C" ]
+        # remove those that are not to be compiled because included by others
+        C_files.remove("POUS.c")
+        if not C_files:
+            self.logger.write_error(_("Error : At least one configuration and one resource must be declared in PLC !\n"))
+            return False
+        # transform those base names to full names with path
+        C_files = map(lambda filename:os.path.join(buildpath, filename), C_files)
+        self.logger.write(_("Extracting Located Variables...\n"))
+        # Keep track of generated located variables for later use by self._Generate_C
+        self.PLCGeneratedLocatedVars = self.GetLocations()
+        # Keep track of generated C files for later use by self.CTNGenerate_C
+        self.PLCGeneratedCFiles = C_files
+        # compute CFLAGS for plc
+        self.plcCFLAGS = "\"-I"+self.ieclib_path+"\""
+        return True
+
+    def GetBuilder(self):
+        """
+        Return a Builder (compile C code into machine code)
+        """
+        # Get target, module and class name
+        targetname = self.GetTarget().getcontent()["name"]
+        modulename = "targets." + targetname
+        classname = targetname + "_target"
+
+        # Get module reference
+        try :
+            targetmodule = getattr(__import__(modulename), targetname)
+
+        except Exception, msg:
+            self.logger.write_error(_("Can't find module for target %s!\n")%targetname)
+            self.logger.write_error(str(msg))
+            return None
+        
+        # Get target class
+        targetclass = getattr(targetmodule, classname)
+
+        # if target already 
+        if self._builder is None or not isinstance(self._builder,targetclass):
+            # Get classname instance
+            self._builder = targetclass(self)
+        return self._builder
+
+    def ResetBuildMD5(self):
+        builder=self.GetBuilder()
+        if builder is not None:
+            builder.ResetBinaryCodeMD5()
+        self.EnableMethod("_Transfer", False)
+
+    def GetLastBuildMD5(self):
+        builder=self.GetBuilder()
+        if builder is not None:
+            return builder.GetBinaryCodeMD5()
+        else:
+            return None
+
+    #######################################################################
+    #
+    #                C CODE GENERATION METHODS
+    #
+    #######################################################################
+    
+    def CTNGenerate_C(self, buildpath, locations):
+        """
+        Return C code generated by iec2c compiler 
+        when _generate_softPLC have been called
+        @param locations: ignored
+        @return: [(C_file_name, CFLAGS),...] , LDFLAGS_TO_APPEND
+        """
+
+        return ([(C_file_name, self.plcCFLAGS) 
+                for C_file_name in self.PLCGeneratedCFiles ], 
+               "", # no ldflags
+               False) # do not expose retreive/publish calls
+    
+    def ResetIECProgramsAndVariables(self):
+        """
+        Reset variable and program list that are parsed from
+        CSV file generated by IEC2C compiler.
+        """
+        self._ProgramList = None
+        self._VariablesList = None
+        self._IECPathToIdx = {}
+        self._Ticktime = 0
+        self.TracedIECPath = []
+
+    def GetIECProgramsAndVariables(self):
+        """
+        Parse CSV-like file  VARIABLES.csv resulting from IEC2C compiler.
+        Each section is marked with a line staring with '//'
+        list of all variables used in various POUs
+        """
+        if self._ProgramList is None or self._VariablesList is None:
+            try:
+                csvfile = os.path.join(self._getBuildPath(),"VARIABLES.csv")
+                # describes CSV columns
+                ProgramsListAttributeName = ["num", "C_path", "type"]
+                VariablesListAttributeName = ["num", "vartype", "IEC_path", "C_path", "type"]
+                self._ProgramList = []
+                self._VariablesList = []
+                self._IECPathToIdx = {}
+                
+                # Separate sections
+                ListGroup = []
+                for line in open(csvfile,'r').xreadlines():
+                    strippedline = line.strip()
+                    if strippedline.startswith("//"):
+                        # Start new section
+                        ListGroup.append([])
+                    elif len(strippedline) > 0 and len(ListGroup) > 0:
+                        # append to this section
+                        ListGroup[-1].append(strippedline)
+        
+                # first section contains programs
+                for line in ListGroup[0]:
+                    # Split and Maps each field to dictionnary entries
+                    attrs = dict(zip(ProgramsListAttributeName,line.strip().split(';')))
+                    # Truncate "C_path" to remove conf an ressources names
+                    attrs["C_path"] = '__'.join(attrs["C_path"].split(".",2)[1:])
+                    # Push this dictionnary into result.
+                    self._ProgramList.append(attrs)
+        
+                # second section contains all variables
+                for line in ListGroup[1]:
+                    # Split and Maps each field to dictionnary entries
+                    attrs = dict(zip(VariablesListAttributeName,line.strip().split(';')))
+                    # Truncate "C_path" to remove conf an ressources names
+                    parts = attrs["C_path"].split(".",2)
+                    if len(parts) > 2:
+                        attrs["C_path"] = '__'.join(parts[1:])
+                    else:
+                        attrs["C_path"] = '__'.join(parts)
+                    # Push this dictionnary into result.
+                    self._VariablesList.append(attrs)
+                    # Fill in IEC<->C translation dicts
+                    IEC_path=attrs["IEC_path"]
+                    Idx=int(attrs["num"])
+                    self._IECPathToIdx[IEC_path]=(Idx, attrs["type"])
+                
+                # third section contains ticktime
+                if len(ListGroup) > 2:
+                    self._Ticktime = int(ListGroup[2][0]) 
+                
+            except Exception,e:
+                self.logger.write_error(_("Cannot open/parse VARIABLES.csv!\n"))
+                self.logger.write_error(traceback.format_exc())
+                self.ResetIECProgramsAndVariables()
+                return False
+
+        return True
+
+    def Generate_plc_debugger(self):
+        """
+        Generate trace/debug code out of PLC variable list
+        """
+        self.GetIECProgramsAndVariables()
+
+        # prepare debug code
+        debug_code = targets.code("plc_debug") % {
+           "buffer_size": reduce(lambda x, y: x + y, [DebugTypesSize.get(v["type"], 0) for v in self._VariablesList], 0),
+           "programs_declarations":
+               "\n".join(["extern %(type)s %(C_path)s;"%p for p in self._ProgramList]),
+           "extern_variables_declarations":"\n".join([
+              {"EXT":"extern __IEC_%(type)s_p %(C_path)s;",
+               "IN":"extern __IEC_%(type)s_p %(C_path)s;",
+               "MEM":"extern __IEC_%(type)s_p %(C_path)s;",
+               "OUT":"extern __IEC_%(type)s_p %(C_path)s;",
+               "VAR":"extern __IEC_%(type)s_t %(C_path)s;"}[v["vartype"]]%v 
+               for v in self._VariablesList if v["vartype"] != "FB" and v["C_path"].find('.')<0]),
+           "for_each_variable_do_code":"\n".join([
+               {"EXT":"    (*fp)((void*)&%(C_path)s,%(type)s_P_ENUM);\n",
+                "IN":"    (*fp)((void*)&%(C_path)s,%(type)s_P_ENUM);\n",
+                "MEM":"    (*fp)((void*)&%(C_path)s,%(type)s_O_ENUM);\n",
+                "OUT":"    (*fp)((void*)&%(C_path)s,%(type)s_O_ENUM);\n",
+                "VAR":"    (*fp)((void*)&%(C_path)s,%(type)s_ENUM);\n"}[v["vartype"]]%v
+                for v in self._VariablesList if v["vartype"] != "FB" and v["type"] in DebugTypesSize ]),
+           "find_variable_case_code":"\n".join([
+               "    case %(num)s:\n"%v+
+               "        *varp = (void*)&%(C_path)s;\n"%v+
+               {"EXT":"        return %(type)s_P_ENUM;\n",
+                "IN":"        return %(type)s_P_ENUM;\n",
+                "MEM":"        return %(type)s_O_ENUM;\n",
+                "OUT":"        return %(type)s_O_ENUM;\n",
+                "VAR":"        return %(type)s_ENUM;\n"}[v["vartype"]]%v
+                for v in self._VariablesList if v["vartype"] != "FB" and v["type"] in DebugTypesSize ])}
+        
+        return debug_code
+        
+    def Generate_plc_common_main(self):
+        """
+        Use confnodes layout given in LocationCFilesAndCFLAGS to
+        generate glue code that dispatch calls to all confnodes
+        """
+        # filter location that are related to code that will be called
+        # in retreive, publish, init, cleanup
+        locstrs = map(lambda x:"_".join(map(str,x)),
+           [loc for loc,Cfiles,DoCalls in self.LocationCFilesAndCFLAGS if loc and DoCalls])
+
+        # Generate main, based on template
+        if self.BeremizRoot.getEnable_ConfNodes():
+            plc_main_code = targets.code("plc_common_main") % {
+                "calls_prototypes":"\n".join([(
+                      "int __init_%(s)s(int argc,char **argv);\n"+
+                      "void __cleanup_%(s)s(void);\n"+
+                      "void __retrieve_%(s)s(void);\n"+
+                      "void __publish_%(s)s(void);")%{'s':locstr} for locstr in locstrs]),
+                "retrieve_calls":"\n    ".join([
+                      "__retrieve_%s();"%locstrs[i-1] for i in xrange(len(locstrs), 0, -1)]),
+                "publish_calls":"\n    ".join([ #Call publish in reverse order
+                      "__publish_%s();"%locstr for locstr in locstrs]),
+                "init_calls":"\n    ".join([
+                      "init_level=%d; "%(i+1)+
+                      "if((res = __init_%s(argc,argv))){"%locstr +
+                      #"printf(\"%s\"); "%locstr + #for debug
+                      "return res;}" for i,locstr in enumerate(locstrs)]),
+                "cleanup_calls":"\n    ".join([
+                      "if(init_level >= %d) "%i+
+                      "__cleanup_%s();"%locstrs[i-1] for i in xrange(len(locstrs), 0, -1)])
+                }
+        else:
+            plc_main_code = targets.code("plc_common_main") % {
+                "calls_prototypes":"\n",
+                "retrieve_calls":"\n",
+                "publish_calls":"\n",
+                "init_calls":"\n",
+                "cleanup_calls":"\n"
+                }
+        plc_main_code += targets.targetcode(self.GetTarget().getcontent()["name"])
+        return plc_main_code
+
+        
+    def _Build(self):
+        """
+        Method called by user to (re)build SoftPLC and confnode tree
+        """
+        if self.AppFrame is not None:
+            self.AppFrame.ClearErrors()
+        
+        buildpath = self._getBuildPath()
+
+        # Eventually create build dir
+        if not os.path.exists(buildpath):
+            os.mkdir(buildpath)
+        # There is something to clean
+        self.EnableMethod("_Clean", True)
+
+        self.logger.flush()
+        self.logger.write(_("Start build in %s\n") % buildpath)
+
+        # Generate SoftPLC IEC code
+        IECGenRes = self._Generate_SoftPLC()
+        self.ShowMethod("_showIECcode", True)
+
+        # If IEC code gen fail, bail out.
+        if not IECGenRes:
+            self.logger.write_error(_("IEC-61131-3 code generation failed !\n"))
+            self.ResetBuildMD5()
+            return False
+
+        # Reset variable and program list that are parsed from
+        # CSV file generated by IEC2C compiler.
+        self.ResetIECProgramsAndVariables()
+        
+        # Generate C code and compilation params from confnode hierarchy
+        try:
+            self.LocationCFilesAndCFLAGS, self.LDFLAGS, ExtraFiles = self._Generate_C(
+                buildpath, 
+                self.PLCGeneratedLocatedVars)
+        except Exception, exc:
+            self.logger.write_error(_("Runtime extensions C code generation failed !\n"))
+            self.logger.write_error(traceback.format_exc())
+            self.ResetBuildMD5()
+            return False
+
+        # Get temporary directory path
+        extrafilespath = self._getExtraFilesPath()
+        # Remove old directory
+        if os.path.exists(extrafilespath):
+            shutil.rmtree(extrafilespath)
+        # Recreate directory
+        os.mkdir(extrafilespath)
+        # Then write the files
+        for fname,fobject in ExtraFiles:
+            fpath = os.path.join(extrafilespath,fname)
+            open(fpath, "wb").write(fobject.read())
+        # Now we can forget ExtraFiles (will close files object)
+        del ExtraFiles
+        
+        # Template based part of C code generation
+        # files are stacked at the beginning, as files of confnode tree root
+        for generator, filename, name in [
+           # debugger code
+           (self.Generate_plc_debugger, "plc_debugger.c", "Debugger"),
+           # init/cleanup/retrieve/publish, run and align code
+           (self.Generate_plc_common_main,"plc_common_main.c","Common runtime")]:
+            try:
+                # Do generate
+                code = generator()
+                if code is None:
+                     raise
+                code_path = os.path.join(buildpath,filename)
+                open(code_path, "w").write(code)
+                # Insert this file as first file to be compiled at root confnode
+                self.LocationCFilesAndCFLAGS[0][1].insert(0,(code_path, self.plcCFLAGS))
+            except Exception, exc:
+                self.logger.write_error(name+_(" generation failed !\n"))
+                self.logger.write_error(traceback.format_exc())
+                self.ResetBuildMD5()
+                return False
+
+        self.logger.write(_("C code generated successfully.\n"))
+
+        # Get current or fresh builder
+        builder = self.GetBuilder()
+        if builder is None:
+            self.logger.write_error(_("Fatal : cannot get builder.\n"))
+            self.ResetBuildMD5()
+            return False
+
+        # Build
+        try:
+            if not builder.build() :
+                self.logger.write_error(_("C Build failed.\n"))
+                return False
+        except Exception, exc:
+            self.logger.write_error(_("C Build crashed !\n"))
+            self.logger.write_error(traceback.format_exc())
+            self.ResetBuildMD5()
+            return False
+
+        self.logger.write(_("Successfully built.\n"))
+        # Update GUI status about need for transfer
+        self.CompareLocalAndRemotePLC()
+        return True
+    
+    def ShowError(self, logger, from_location, to_location):
+        chunk_infos = self.GetChunkInfos(from_location, to_location)
+        for infos, (start_row, start_col) in chunk_infos:
+            start = (from_location[0] - start_row, from_location[1] - start_col)
+            end = (to_location[0] - start_row, to_location[1] - start_col)
+            #print from_location, to_location, start_row, start_col, start, end
+            if self.AppFrame is not None:
+                self.AppFrame.ShowError(infos, start, end)
+
+    def _showIECcode(self):
+        self._OpenView("IEC code")
+
+    def _editIECrawcode(self):
+        self._OpenView("IEC raw code")
+
+    def _OpenView(self, name=None):
+        if name == "IEC code":
+            plc_file = self._getIECcodepath()
+        
+            IEC_code_viewer = TextViewer(self.AppFrame.TabsOpened, "", None, None, instancepath=name)
+            #IEC_code_viewer.Enable(False)
+            IEC_code_viewer.SetTextSyntax("ALL")
+            IEC_code_viewer.SetKeywords(IEC_KEYWORDS)
+            try:
+                text = file(plc_file).read()
+            except:
+                text = '(* No IEC code have been generated at that time ! *)'
+            IEC_code_viewer.SetText(text = text)
+            IEC_code_viewer.SetIcon(self.AppFrame.GenerateBitmap("ST"))
+                
+            self.AppFrame.EditProjectElement(IEC_code_viewer, name)
+            
+            return IEC_code_viewer
+        
+        elif name == "IEC raw code":
+            controler = MiniTextControler(self._getIECrawcodepath())
+            IEC_raw_code_viewer = TextViewer(self.AppFrame.TabsOpened, "", None, controler, instancepath=name)
+            #IEC_raw_code_viewer.Enable(False)
+            IEC_raw_code_viewer.SetTextSyntax("ALL")
+            IEC_raw_code_viewer.SetKeywords(IEC_KEYWORDS)
+            IEC_raw_code_viewer.RefreshView()
+            IEC_raw_code_viewer.SetIcon(self.AppFrame.GenerateBitmap("ST"))
+                
+            self.AppFrame.EditProjectElement(IEC_raw_code_viewer, name)
+
+            return IEC_raw_code_viewer
+        
+        return None
+
+    def _Clean(self):
+        if os.path.isdir(os.path.join(self._getBuildPath())):
+            self.logger.write(_("Cleaning the build directory\n"))
+            shutil.rmtree(os.path.join(self._getBuildPath()))
+        else:
+            self.logger.write_error(_("Build directory already clean\n"))
+        self.ShowMethod("_showIECcode", False)
+        self.EnableMethod("_Clean", False)
+        # kill the builder
+        self._builder = None
+        self.CompareLocalAndRemotePLC()
+
+    ############# Real PLC object access #############
+    def UpdateMethodsFromPLCStatus(self):
+        # Get PLC state : Running or Stopped
+        # TODO : use explicit status instead of boolean
+        status = None
+        if self._connector is not None:
+            status = self._connector.GetPLCstatus()
+        if status is None:
+            self._connector = None
+            status = "Disconnected"
+        if(self.previous_plcstate != status):
+            for args in {
+                     "Started" :     [("_Run", False),
+                                      ("_Stop", True)],
+                     "Stopped" :     [("_Run", True),
+                                      ("_Stop", False)],
+                     "Empty" :       [("_Run", False),
+                                      ("_Stop", False)],
+                     "Broken" :      [],
+                     "Disconnected" :[("_Run", False),
+                                      ("_Stop", False),
+                                      ("_Transfer", False),
+                                      ("_Connect", True),
+                                      ("_Disconnect", False)],
+                   }.get(status,[]):
+                self.ShowMethod(*args)
+            self.previous_plcstate = status
+            return True
+        return False
+    
+    def PullPLCStatusProc(self, event):
+        if self._connector is None:
+            self.StatusTimer.Stop()
+        if self.UpdateMethodsFromPLCStatus():
+            
+            status = _(self.previous_plcstate)
+            {"Broken": self.logger.write_error,
+             None: lambda x: None}.get(
+                self.previous_plcstate, self.logger.write)(_("PLC is %s\n")%status)
+            self.AppFrame.RefreshAll()
+        
+    def RegisterDebugVarToConnector(self):
+        self.DebugTimer=None
+        Idxs = []
+        self.TracedIECPath = []
+        if self._connector is not None:
+            self.IECdebug_lock.acquire()
+            IECPathsToPop = []
+            for IECPath,data_tuple in self.IECdebug_datas.iteritems():
+                WeakCallableDict, data_log, status, fvalue = data_tuple
+                if len(WeakCallableDict) == 0:
+                    # Callable Dict is empty.
+                    # This variable is not needed anymore!
+                    #print "Unused : " + IECPath
+                    IECPathsToPop.append(IECPath)
+                elif IECPath != "__tick__":
+                    # Convert 
+                    Idx, IEC_Type = self._IECPathToIdx.get(IECPath,(None,None))
+                    if Idx is not None:
+                        if IEC_Type in DebugTypesSize: 
+                            Idxs.append((Idx, IEC_Type, fvalue, IECPath))
+                        else:
+                            self.logger.write_warning(_("Debug : Unsuppoted type to debug %s\n")%IEC_Type)
+                    else:
+                        self.logger.write_warning(_("Debug : Unknown variable %s\n")%IECPath)
+            for IECPathToPop in IECPathsToPop:
+                self.IECdebug_datas.pop(IECPathToPop)
+
+            if Idxs:
+                Idxs.sort()
+                self.TracedIECPath = zip(*Idxs)[3]
+                self._connector.SetTraceVariablesList(zip(*zip(*Idxs)[0:3]))
+            else:
+                self.TracedIECPath = []
+                self._connector.SetTraceVariablesList([])
+            self.IECdebug_lock.release()
+            
+            #for IEC_path, IECdebug_data in self.IECdebug_datas.iteritems():
+            #    print IEC_path, IECdebug_data[0].keys()
+
+    def ReArmDebugRegisterTimer(self):
+        if self.DebugTimer is not None:
+            self.DebugTimer.cancel()
+
+        # Timer to prevent rapid-fire when registering many variables
+        # use wx.CallAfter use keep using same thread. TODO : use wx.Timer instead
+        self.DebugTimer=Timer(0.5,wx.CallAfter,args = [self.RegisterDebugVarToConnector])
+        # Rearm anti-rapid-fire timer
+        self.DebugTimer.start()
+
+    def GetDebugIECVariableType(self, IECPath):
+        Idx, IEC_Type = self._IECPathToIdx.get(IECPath,(None,None))
+        return IEC_Type
+        
+    def SubscribeDebugIECVariable(self, IECPath, callableobj, *args, **kwargs):
+        """
+        Dispatching use a dictionnary linking IEC variable paths
+        to a WeakKeyDictionary linking 
+        weakly referenced callables to optionnal args
+        """
+        if IECPath != "__tick__" and not self._IECPathToIdx.has_key(IECPath):
+            return None
+        
+        self.IECdebug_lock.acquire()
+        # If no entry exist, create a new one with a fresh WeakKeyDictionary
+        IECdebug_data = self.IECdebug_datas.get(IECPath, None)
+        if IECdebug_data is None:
+            IECdebug_data  = [
+                    WeakKeyDictionary(), # Callables
+                    [],                  # Data storage [(tick, data),...]
+                    "Registered",        # Variable status
+                    None]                # Forced value
+            self.IECdebug_datas[IECPath] = IECdebug_data
+        
+        IECdebug_data[0][callableobj]=(args, kwargs)
+
+        self.IECdebug_lock.release()
+        
+        self.ReArmDebugRegisterTimer()
+        
+        return IECdebug_data[1]
+
+    def UnsubscribeDebugIECVariable(self, IECPath, callableobj):
+        #print "Unsubscribe", IECPath, callableobj
+        self.IECdebug_lock.acquire()
+        IECdebug_data = self.IECdebug_datas.get(IECPath, None)
+        if IECdebug_data is not None:
+            IECdebug_data[0].pop(callableobj,None)
+        self.IECdebug_lock.release()
+
+        self.ReArmDebugRegisterTimer()
+
+    def UnsubscribeAllDebugIECVariable(self):
+        self.IECdebug_lock.acquire()
+        IECdebug_data = {}
+        self.IECdebug_lock.release()
+
+        self.ReArmDebugRegisterTimer()
+
+    def ForceDebugIECVariable(self, IECPath, fvalue):
+        if not self.IECdebug_datas.has_key(IECPath):
+            return
+        
+        self.IECdebug_lock.acquire()
+        
+        # If no entry exist, create a new one with a fresh WeakKeyDictionary
+        IECdebug_data = self.IECdebug_datas.get(IECPath, None)
+        IECdebug_data[2] = "Forced"
+        IECdebug_data[3] = fvalue
+        
+        self.IECdebug_lock.release()
+        
+        self.ReArmDebugRegisterTimer()
+    
+    def ReleaseDebugIECVariable(self, IECPath):
+        if not self.IECdebug_datas.has_key(IECPath):
+            return
+        
+        self.IECdebug_lock.acquire()
+        
+        # If no entry exist, create a new one with a fresh WeakKeyDictionary
+        IECdebug_data = self.IECdebug_datas.get(IECPath, None)
+        IECdebug_data[2] = "Registered"
+        IECdebug_data[3] = None
+        
+        self.IECdebug_lock.release()
+        
+        self.ReArmDebugRegisterTimer()
+    
+    def CallWeakcallables(self, IECPath, function_name, *cargs):
+        data_tuple = self.IECdebug_datas.get(IECPath, None)
+        if data_tuple is not None:
+            WeakCallableDict, data_log, status, fvalue = data_tuple
+            #data_log.append((debug_tick, value))
+            for weakcallable,(args,kwargs) in WeakCallableDict.iteritems():
+                #print weakcallable, value, args, kwargs
+                function = getattr(weakcallable, function_name, None)
+                if function is not None:
+                    if status == "Forced" and cargs[1] == fvalue:
+                        function(*(cargs + (True,) + args), **kwargs)
+                    else:
+                        function(*(cargs + args), **kwargs)
+                # This will block thread if more than one call is waiting
+
+    def GetTicktime(self):
+        return self._Ticktime
+
+    def RemoteExec(self, script, **kwargs):
+        if self._connector is None:
+            return -1, "No runtime connected!"
+        return self._connector.RemoteExec(script, **kwargs)
+
+    def DebugThreadProc(self):
+        """
+        This thread waid PLC debug data, and dispatch them to subscribers
+        """
+        self.debug_break = False
+        debug_getvar_retry = 0
+        while (not self.debug_break) and (self._connector is not None):
+            Trace = self._connector.GetTraceVariables()
+            if(Trace):
+                plc_status, debug_tick, debug_vars = Trace
+            else:
+                plc_status = None
+            debug_getvar_retry += 1
+            #print debug_tick, debug_vars
+            if plc_status == "Started":
+                self.IECdebug_lock.acquire()
+                if len(debug_vars) == len(self.TracedIECPath):
+                    if debug_getvar_retry > DEBUG_RETRIES_WARN:
+                        self.logger.write(_("... debugger recovered\n"))
+                    debug_getvar_retry = 0
+                    for IECPath,value in zip(self.TracedIECPath, debug_vars):
+                        if value is not None:
+                            self.CallWeakcallables(IECPath, "NewValue", debug_tick, value)
+                    self.CallWeakcallables("__tick__", "NewDataAvailable")
+                self.IECdebug_lock.release()
+                if debug_getvar_retry == DEBUG_RETRIES_WARN:
+                    self.logger.write(_("Waiting debugger to recover...\n"))
+                if debug_getvar_retry == DEBUG_RETRIES_REREGISTER:
+                    # re-register debug registry to PLC
+                    wx.CallAfter(self.RegisterDebugVarToConnector)
+                if debug_getvar_retry != 0:
+                    # Be patient, tollerate PLC to come up before debugging
+                    time.sleep(0.1)
+            else:
+                self.debug_break = True
+        self.logger.write(_("Debugger disabled\n"))
+        self.DebugThread = None
+
+    def KillDebugThread(self):
+        tmp_debugthread = self.DebugThread
+        self.debug_break = True
+        if tmp_debugthread is not None:
+            self.logger.writeyield(_("Stopping debugger...\n"))
+            tmp_debugthread.join(timeout=5)
+            if tmp_debugthread.isAlive() and self.logger:
+                self.logger.write_warning(_("Couldn't stop debugger.\n"))
+            else:
+                self.logger.write(_("Debugger stopped.\n"))
+        self.DebugThread = None
+
+    def _connect_debug(self): 
+        if self.AppFrame:
+            self.AppFrame.ResetGraphicViewers()
+        self.RegisterDebugVarToConnector()
+        if self.DebugThread is None:
+            self.DebugThread = Thread(target=self.DebugThreadProc)
+            self.DebugThread.start()
+    
+    def _Run(self):
+        """
+        Start PLC
+        """
+        if self.GetIECProgramsAndVariables():
+            self._connector.StartPLC()
+            self.logger.write(_("Starting PLC\n"))
+            self._connect_debug()
+        else:
+            self.logger.write_error(_("Couldn't start PLC !\n"))
+        wx.CallAfter(self.UpdateMethodsFromPLCStatus)
+       
+    def _Stop(self):
+        """
+        Stop PLC
+        """
+        if self._connector is not None and not self._connector.StopPLC():
+            self.logger.write_error(_("Couldn't stop PLC !\n"))
+
+        # debugthread should die on his own
+        #self.KillDebugThread()
+        
+        wx.CallAfter(self.UpdateMethodsFromPLCStatus)
+
+    def _Connect(self):
+        # don't accept re-connetion is already connected
+        if self._connector is not None:
+            self.logger.write_error(_("Already connected. Please disconnect\n"))
+            return
+        
+        # Get connector uri
+        uri = self.\
+              BeremizRoot.\
+              getURI_location().\
+              strip()
+
+        # if uri is empty launch discovery dialog
+        if uri == "":
+            # Launch Service Discovery dialog
+            dialog = DiscoveryDialog(self.AppFrame)
+            answer = dialog.ShowModal()
+            uri = dialog.GetURI()
+            dialog.Destroy()
+            
+            # Nothing choosed or cancel button
+            if uri is None or answer == wx.ID_CANCEL:
+                self.logger.write_error(_("Connection canceled!\n"))
+                return
+            else:
+                self.\
+                BeremizRoot.\
+                setURI_location(uri)
+       
+        # Get connector from uri
+        try:
+            self._connector = connectors.ConnectorFactory(uri, self)
+        except Exception, msg:
+            self.logger.write_error(_("Exception while connecting %s!\n")%uri)
+            self.logger.write_error(traceback.format_exc())
+
+        # Did connection success ?
+        if self._connector is None:
+            # Oups.
+            self.logger.write_error(_("Connection failed to %s!\n")%uri)
+        else:
+            self.ShowMethod("_Connect", False)
+            self.ShowMethod("_Disconnect", True)
+            self.ShowMethod("_Transfer", True)
+
+            self.CompareLocalAndRemotePLC()
+            
+            # Init with actual PLC status and print it
+            self.UpdateMethodsFromPLCStatus()
+            if self.previous_plcstate is not None:
+                status = _(self.previous_plcstate)
+            else:
+                status = ""
+            self.logger.write(_("PLC is %s\n")%status)
+            
+            # Start the status Timer
+            self.StatusTimer.Start(milliseconds=500, oneShot=False)
+            
+            if self.previous_plcstate=="Started":
+                if self.DebugAvailable() and self.GetIECProgramsAndVariables():
+                    self.logger.write(_("Debug connect matching running PLC\n"))
+                    self._connect_debug()
+                else:
+                    self.logger.write_warning(_("Debug do not match PLC - stop/transfert/start to re-enable\n"))
+
+    def CompareLocalAndRemotePLC(self):
+        if self._connector is None:
+            return
+        # We are now connected. Update button status
+        MD5 = self.GetLastBuildMD5()
+        # Check remote target PLC correspondance to that md5
+        if MD5 is not None:
+            if not self._connector.MatchMD5(MD5):
+#                self.logger.write_warning(
+#                   _("Latest build does not match with target, please transfer.\n"))
+                self.EnableMethod("_Transfer", True)
+            else:
+#                self.logger.write(
+#                   _("Latest build matches target, no transfer needed.\n"))
+                self.EnableMethod("_Transfer", True)
+                # warns controller that program match
+                self.ProgramTransferred()
+                #self.EnableMethod("_Transfer", False)
+        else:
+#            self.logger.write_warning(
+#                _("Cannot compare latest build to target. Please build.\n"))
+            self.EnableMethod("_Transfer", False)
+
+
+    def _Disconnect(self):
+        self._connector = None
+        self.StatusTimer.Stop()
+        wx.CallAfter(self.UpdateMethodsFromPLCStatus)
+        
+    def _Transfer(self):
+        # Get the last build PLC's 
+        MD5 = self.GetLastBuildMD5()
+        
+        # Check if md5 file is empty : ask user to build PLC 
+        if MD5 is None :
+            self.logger.write_error(_("Failed : Must build before transfer.\n"))
+            return False
+
+        # Compare PLC project with PLC on target
+        if self._connector.MatchMD5(MD5):
+            self.logger.write(
+                _("Latest build already matches current target. Transfering anyway...\n"))
+
+        # Get temprary directory path
+        extrafilespath = self._getExtraFilesPath()
+        extrafiles = [(name, open(os.path.join(extrafilespath, name), 
+                                  'rb').read()) \
+                      for name in os.listdir(extrafilespath) \
+                      if not name=="CVS"]
+
+        # Send PLC on target
+        builder = self.GetBuilder()
+        if builder is not None:
+            data = builder.GetBinaryCode()
+            if data is not None :
+                if self._connector.NewPLC(MD5, data, extrafiles) and self.GetIECProgramsAndVariables():
+                    self.UnsubscribeAllDebugIECVariable()
+                    self.ProgramTransferred()
+                    if self.AppFrame is not None:
+                        self.AppFrame.RefreshInstancesTree()
+                        self.AppFrame.CloseObsoleteDebugTabs()
+                    self.logger.write(_("Transfer completed successfully.\n"))
+                else:
+                    self.logger.write_error(_("Transfer failed\n"))
+            else:
+                self.logger.write_error(_("No PLC to transfer (did build succeed ?)\n"))
+
+        wx.CallAfter(self.UpdateMethodsFromPLCStatus)
+
+    ConfNodeMethods = [
+        {"bitmap" : opjimg("Build"),
+         "name" : _("Build"),
+         "tooltip" : _("Build project into build folder"),
+         "method" : "_Build"},
+        {"bitmap" : opjimg("Clean"),
+         "name" : _("Clean"),
+         "enabled" : False,
+         "tooltip" : _("Clean project build folder"),
+         "method" : "_Clean"},
+        {"bitmap" : opjimg("Run"),
+         "name" : _("Run"),
+         "shown" : False,
+         "tooltip" : _("Start PLC"),
+         "method" : "_Run"},
+        {"bitmap" : opjimg("Stop"),
+         "name" : _("Stop"),
+         "shown" : False,
+         "tooltip" : _("Stop Running PLC"),
+         "method" : "_Stop"},
+        {"bitmap" : opjimg("Connect"),
+         "name" : _("Connect"),
+         "tooltip" : _("Connect to the target PLC"),
+         "method" : "_Connect"},
+        {"bitmap" : opjimg("Transfer"),
+         "name" : _("Transfer"),
+         "shown" : False,
+         "tooltip" : _("Transfer PLC"),
+         "method" : "_Transfer"},
+        {"bitmap" : opjimg("Disconnect"),
+         "name" : _("Disconnect"),
+         "shown" : False,
+         "tooltip" : _("Disconnect from PLC"),
+         "method" : "_Disconnect"},
+        {"bitmap" : opjimg("ShowIECcode"),
+         "name" : _("Show code"),
+         "shown" : False,
+         "tooltip" : _("Show IEC code generated by PLCGenerator"),
+         "method" : "_showIECcode"},
+        {"bitmap" : opjimg("editIECrawcode"),
+         "name" : _("Raw IEC code"),
+         "tooltip" : _("Edit raw IEC code added to code generated by PLCGenerator"),
+         "method" : "_editIECrawcode"},
+    ]