etherlab/CommonEtherCATFunction.py
author Edouard Tisserant
Wed, 01 Jul 2020 10:36:20 +0200
changeset 2686 703ebf57508a
parent 2643 b98d9e08231f
permissions -rw-r--r--
Modbus and Bacnet websettings : Rename variables and functions to avoid name collisions.

Websettings for modbus and bacnet are now passed to runtime as python files loaded (execfile) at init of PLCObject with the same globals.
Because if this, same names used in previously different modules now colide.
#!/usr/bin/env python
# -*- coding: utf-8 -*-


# This file is part of Beremiz
#
# Copyright (C) 2013: Real-Time & Embedded Systems (RTES) Lab. University of Seoul, Korea
#
# See COPYING file for copyrights details.

from __future__ import absolute_import
from __future__ import division
from builtins import str as text
import codecs
import wx


mailbox_protocols = ["AoE", "EoE", "CoE", "FoE", "SoE", "VoE"]


def ExtractHexDecValue(value):
    """
     convert numerical value in string format into decimal or hex format.
     @param value : hex or decimal data
     @return integer data
    """
    try:
        return int(value)
    except Exception:
        pass
    try:
        return int(value.replace("#", "0"), 16)

    except Exception:
        raise ValueError(_("Invalid value for HexDecValue \"%s\"") % value)


def ExtractName(names, default=None):
    """
     Extract "name" field from XML entries.
     @param names : XML entry
     @default : if it fails to extract from the designated XML entry, return the default value ("None").
     @return default or the name extracted
    """
    if len(names) == 1:
        return names[0].getcontent()
    else:
        for name in names:
            if name.getLcId() == 1033:
                return name.getcontent()
    return default

#--------------------------------------------------
#         Remote Exec Etherlab Commands
#--------------------------------------------------

# --------------------- for master ---------------------------
MASTER_STATE = """
import commands
result = commands.getoutput("ethercat master")
returnVal =result
"""

# --------------------- for slave ----------------------------
# ethercat state -p (slave position) (state (INIT, PREOP, SAFEOP, OP))
SLAVE_STATE = """
import commands
result = commands.getoutput("ethercat state -p %d %s")
returnVal = result
"""

# ethercat slave
GET_SLAVE = """
import commands
result = commands.getoutput("ethercat slaves")
returnVal =result
"""

# ethercat xml -p (slave position)
SLAVE_XML = """
import commands
result = commands.getoutput("ethercat xml -p %d")
returnVal = result
"""

# ethercat upload -p (slave position) -t (type) (index) (sub index)
SDO_UPLOAD = """
import commands
sdo_data = []
input_data = "%s"
slave_pos = %d
command_string = ""
for sdo_token in input_data.split(","):  
    if len(sdo_token) > 1:
        sdo_token = sdo_token.strip()
        type, idx, subidx = sdo_token.split(" ")
        command_string = "ethercat upload -p " + str(slave_pos) + " -t " + type + " " + idx + " " + subidx
        result = commands.getoutput(command_string)
        sdo_data.append(result)
returnVal =sdo_data
"""

# ethercat download -p (slave position) (main index) (sub index) (value)
SDO_DOWNLOAD = """
import commands
result = commands.getoutput("ethercat download --type %s -p %d %s %s %s")
returnVal =result
"""

# ethercat sii_read -p (slave position)
SII_READ = """
import commands
result = commands.getoutput("ethercat sii_read -p %d")
returnVal =result
"""

# ethercat reg_read -p (slave position) (address) (size)
REG_READ = """
import commands
result = commands.getoutput("ethercat reg_read -p %d %s %s")
returnVal =result
"""

# ethercat reg_read -p (slave position) (address) (size)
MULTI_REG_READ = """ 
import commands
output = []
addr, size = range(2)
slave_num = %d 
reg_info_str = "%s"
reg_info_list = reg_info_str.split("|")
for slave_idx in range(slave_num):
    for reg_info in reg_info_list:
        param = reg_info.split(",")
        result = commands.getoutput("ethercat reg_read -p "
                                    + str(slave_idx) + " "
                                    + param[addr] + " "
                                    + param[size])
        output.append(str(slave_idx) + "," + param[addr] + "," + result)
returnVal = output
"""

# ethercat sii_write -p (slave position) - (contents)
SII_WRITE = """
import subprocess
process = subprocess.Popen(
    ["ethercat", "-f", "sii_write", "-p", "%d", "-"],
    stdin=subprocess.PIPE)
process.communicate(sii_data)
returnVal = process.returncode
"""

# ethercat reg_write -p (slave position) -t (uinit16) (address) (data)
REG_WRITE = """
import commands
result = commands.getoutput("ethercat reg_write -p %d -t uint16 %s %s")
returnVal =result
"""

# ethercat rescan -p (slave position)
RESCAN = """
import commands
result = commands.getoutput("ethercat rescan -p %d")
returnVal =result
"""

# ethercat pdos
PDOS = """
import commands
result = commands.getoutput("ethercat pdos -p 0")
returnVal =result  
"""

# --------------------------------------------------
#    Common Method For EtherCAT Management
# --------------------------------------------------
class _CommonSlave(object):

    # ----- Data Structure for ethercat management ----
    SlaveState = ""

    # SDO base data type for Ethercatmaster
    BaseDataTypes = {
            "bool": ["BOOLEAN", "BOOL", "BIT"],
            "uint8": ["BYTE", "USINT", "BIT1", "BIT2", "BIT3", "BIT4", "BIT5", "BIT6",
                      "BIT7", "BIT8", "BITARR8", "UNSIGNED8"],
            "uint16": ["BITARR16", "UNSIGNED16", "UINT"],
            "uint32": ["BITARR32", "UNSIGNED24", "UINT24", "UNSIGNED32", "UDINT"],
            "uint64": ["UNSINED40", "UINT40", "UNSIGNED48", "UINT48", "UNSIGNED56", 
                       "UINT56", "UNSIGNED64", "ULINT"],
            "int8": ["INTEGER8", "SINT"],
            "int16": ["INTEGER16", "INT"],
            "int32": ["INTEGER24", "INT24", "INTEGER32", "DINT"],
            "int64": ["INTEGER40", "INT40", "INTEGER48", "INT48", "INTEGER56", "INT56",
                      "INTEGER64", "LINT"],
            "float": ["REAL", "REAL32"],
            "double": ["LREAL", "REAL64"],
            "string": ["VISUBLE_STRING", "STRING(n)"],
            "octet_string": ["OCTET_STRING"],
            "unicode_string": ["UNICODE_STRING"]
            }
    
    # category of SDO data
    DatatypeDescription, CommunicationObject, ManufacturerSpecific, \
        ProfileSpecific, Reserved, AllSDOData = range(6)

    # SDO data informations: index, sub-index, type, bit size, category-name 
    SDOVariables = []
    SDOSubEntryData = []
    
    # defalut value of SDO data in XML
    # Not Used
    DefaultValueDic = {}
    
    # Flags for checking "write" permission of OD entries 
    CheckPREOP = False
    CheckSAFEOP = False
    CheckOP = False

    # Save PDO Data
    TxPDOInfo = []
    TxPDOCategory = []
    RxPDOInfo = []
    RxPDOCategory = []

    # Save EEPROM Data
    SiiData = ""

    # Save Register Data
    RegData = ""
    CrtRegSpec = {"ESCType": "",
                  "FMMUNumber": "",
                  "SMNumber": "",
                  "PDIType": ""}

    def __init__(self, controler):
        """
        Constructor
        @param controler: _EthercatSlaveCTN class in EthercatSlave.py
        """
        self.Controler = controler
        self.HexDecode = codecs.getdecoder("hex_codec")
        self.ClearSDODataSet()

    # -------------------------------------------------------------------------------
    #                        Used Master State
    # -------------------------------------------------------------------------------
    def GetMasterState(self):
        """
        Execute "ethercat master" command and parse the execution result
        @return MasterState
        """

        # exectute "ethercat master" command
        _error, return_val = self.Controler.RemoteExec(MASTER_STATE, return_val=None)
        master_state = {}
        # parse the reslut
        for each_line in return_val.splitlines():
            if len(each_line) > 0:
                chunks = each_line.strip().split(':', 1)
                key = chunks[0]
                value = []
                if len(chunks) > 1:
                    value = chunks[1].split()
                if '(attached)' in value:
                    value.remove('(attached)')
                master_state[key] = value

        return master_state

    # -------------------------------------------------------------------------------
    #                        Used Slave State
    # -------------------------------------------------------------------------------
    def RequestSlaveState(self, command):
        """
        Set slave state to the specified one using "ethercat states -p %d %s" command.
        Command example : "ethercat states -p 0 PREOP" (target slave position and target state are given.)
        @param command : target slave state
        """
        _error, _return_val = self.Controler.RemoteExec(
            SLAVE_STATE % (self.Controler.GetSlavePos(), command),
            return_val=None)

    def GetSlaveStateFromSlave(self):
        """
        Get slave information using "ethercat slaves" command and store the information into internal data structure
        (self.SlaveState) for "Slave State"
        return_val example : 0  0:0  PREOP  +  EL9800 (V4.30) (PIC24, SPI, ET1100)
        """
        _error, return_val = self.Controler.RemoteExec(GET_SLAVE, return_val=None)
        self.SlaveState = return_val
        return return_val

    # -------------------------------------------------------------------------------
    #                        Used SDO Management
    # -------------------------------------------------------------------------------
    def SDODownload(self, data_type, idx, sub_idx, value):
        """
        Set an SDO object value to user-specified value using "ethercat download" command.
        Command example : "ethercat download --type int32 -p 0 0x8020 0x12 0x00000000"
        @param data_type : data type of SDO entry
        @param idx : index of the SDO entry
        @param sub_idx : subindex of the SDO entry
        @param value : value of SDO entry
        """ 
        valid_type = self.GetValidDataType(data_type)
        _error, return_val = self.Controler.RemoteExec(
            SDO_DOWNLOAD%(valid_type, self.Controler.GetSlavePos(),
                idx, sub_idx, value), return_val = None)
        
        return return_val
    
    def BackupSDODataSet(self):
        """
        Back-up current SDO entry information to restore the SDO data
        in case that the user cancels SDO update operation.
        """
        self.BackupDatatypeDescription = self.SaveDatatypeDescription
        self.BackupCommunicationObject = self.SaveCommunicationObject
        self.BackupManufacturerSpecific = self.SaveManufacturerSpecific
        self.BackupProfileSpecific = self.SaveProfileSpecific
        self.BackupReserved = self.SaveReserved
        self.BackupAllSDOData = self.SaveAllSDOData

    def ClearSDODataSet(self):
        """
        Clear the specified SDO entry information.
        """
        for dummy in range(6):
            self.SaveSDOData.append([])

    def GetAllSDOValuesFromSlave(self):
        """
        Get SDO values of All SDO entries.
        @return return_val: list of result of "SDO_UPLOAD"
        """
        entry_infos = ""
        alldata_idx = len(self.SDOVariables)
        counter = 0
        for category in self.SDOVariables:
            counter +=1
            # for avoid redundant repetition 
            if counter == alldata_idx:
                continue
            
            for entry in category:
                valid_type = self.GetValidDataType(entry["type"])
                for_command_string = "%s %s %s ," % \
                        (valid_type, entry["idx"], entry["subIdx"])
                entry_infos += for_command_string
             
        error, return_val = self.Controler.RemoteExec(SDO_UPLOAD%(entry_infos, self.Controler.GetSlavePos()), return_val = None)
        
        return return_val

    def GetSDOValuesFromSlave(self, entries_info):
        """
        Get SDO values of some SDO entries.
        @param entries_info: dictionary of SDO entries that is wanted to know the value. 
        @return return_val: list of result of "SDO_UPLOAD"
        """
        entry_infos = ""

        entries_info_list = entries_info.items()
        entries_info_list.sort()
        
        for (idx, subIdx), entry in entries_info_list:
            valid_type = self.GetValidDataType(entry["type"])
            for_command_string = "%s %s %s ," % \
                        (valid_type, str(idx), str(subIdx))
            entry_infos += for_command_string

        error, return_val = self.Controler.RemoteExec(SDO_UPLOAD%(entry_infos, self.Controler.GetSlavePos()), return_val = None)
        
        return return_val

    def ExtractObjects(self):
        """
        Extract object type items from imported ESI xml.
        And they are stuctured as dictionary.
        @return objects: dictionary of objects
        """
        objects = {}

        slave = self.Controler.CTNParent.GetSlave(self.Controler.GetSlavePos())
        type_infos = slave.getType()
        device, alignment = self.Controler.CTNParent.GetModuleInfos(type_infos)
         
        if device is not None :
            for dictionary in device.GetProfileDictionaries():
                dictionary.load()
                for object in dictionary.getObjects().getObject():
                    object_index = ExtractHexDecValue(object.getIndex().getcontent())
                    objects[(object_index)] = object
        
        return objects

    def ExtractAllDataTypes(self):
        """
        Extract all data types from imported ESI xml.
        @return dataTypes: dictionary of datatypes 
        """
        dataTypes = {}
        
        slave = self.Controler.CTNParent.GetSlave(self.Controler.GetSlavePos())
        type_infos = slave.getType()
        device, alignment = self.Controler.CTNParent.GetModuleInfos(type_infos)

        for dictionary in device.GetProfileDictionaries():
            dictionary.load()
        
            datatypes = dictionary.getDataTypes()
            if datatypes is not None:

                for datatype in datatypes.getDataType():
                    dataTypes[datatype.getName()] = datatype
        return dataTypes
    
    def IsBaseDataType(self, datatype):
        """
        Check if the datatype is a base data type.
        @return baseTypeFlag: true if datatype is a base data type, unless false
        """
        baseTypeFlag = False
        for baseDataTypeList in self.BaseDataTypes.values():
            if datatype in baseDataTypeList:
                baseTypeFlag = True
                break
        return baseTypeFlag

    def GetBaseDataType(self, datatype):
        """
        Get a base data type corresponding the datatype.
        @param datatype: Some data type (string format)
        @return base data type
        """
        if self.IsBaseDataType(datatype):
            return datatype
        elif not datatype.find("STRING") == -1:
            return datatype
        else:
            datatypes = self.ExtractAllDataTypes()
            base_datatype = datatypes[datatype].getBaseType()
            return self.GetBaseDataType(base_datatype)

    def GetValidDataType(self, datatype):
        """
        Convert the datatype into a data type that is possible to download/upload 
        in etherlab master stack.
        @param datatype: Some data type (string format)
        @return base_type: vaild data type
        """
        base_type = self.GetBaseDataType(datatype)

        if re.match("STRING\([0-9]*\)", datatype) is not None:
            return "string"
        else:
            for key, value in self.BaseDataTypes.items():
                if base_type in value:
                    return key
        return base_type 

    # Not Used 
    def GetAllEntriesList(self):
        """
        Get All entries information that includes index, sub-index, name,
        type, bit size, PDO mapping, and default value.
        @return self.entries: dictionary of entry
        """
        slave = self.Controler.CTNParent.GetSlave(self.Controler.GetSlavePos())
        type_infos = slave.getType()
        device, alignment = self.Controler.CTNParent.GetModuleInfos(type_infos)
        self.entries = device.GetEntriesList()
        datatypes = self.ExtractAllDataTypes()
        objects = self.ExtractObjects()
        entries_list = self.entries.items()
        entries_list.sort()

        # append sub entries
        for (index, subidx), entry in entries_list:
            # entry_* is string type
            entry_type = entry["Type"]
            entry_index = entry["Index"]
            
            try:
                object_info = objects[index].getInfo()
            except:
                continue
            
            if object_info is not None:
                obj_content = object_info.getcontent()
            
            typeinfo = datatypes.get(entry_type, None)
            bitsize = typeinfo.getBitSize()
            type_content = typeinfo.getcontent()
           
            # ArrayInfo type
            if type_content is not None and type_content["name"] == "ArrayInfo":
                for arrayinfo in type_content["value"]:
                    element_num = arrayinfo.getElements()
                    first_subidx = arrayinfo.getLBound()
                    for offset in range(element_num):
                        new_subidx = int(first_subidx) + offset
                        entry_subidx = hex(new_subidx)
                        if obj_content["value"][new_subidx]["name"] == "SubItem":
                            subitem = obj_content["value"][new_subidx]["value"]
                            subname = subitem[new_subidx].getName()
                        if subname is not None:
                            entry_name = "%s - %s" % \
                                    (ExtractName(objects[index].getName()), subname)
                        else:
                            entry_name = ExtractName(objects[index].getName()) 
                        self.entries[(index, new_subidx)] = {
                                "Index": entry_index,
                                "SubIndex": entry_subidx,
                                "Name": entry_name,
                                "Type": typeinfo.getBaseType(),
                                "BitSize": str(bitsize/element_num),
                                "Access": entry["Access"],
                                "PDOMapping": entry["PDOMapping"]}
                        try:
                            value_info = subitem[new_subidx].getInfo().getcontent()\
                                                            ["value"][0]["value"][0]
                            self.AppendDefaultValue(index, new_subidx, value_info)
                        except:
                            pass

                try:
                    value_info = subitem[subidx].getInfo().getcontent()\
                                                            ["value"][0]["value"][0]
                    self.AppendDefaultValue(index, subidx, value_info)
                except:
                    pass
            
            # EnumInfo type
            elif type_content is not None and type_content["name"] == "EnumInfo":
                self.entries[(index, subidx)]["EnumInfo"] = {}
                
                for enuminfo in type_content["value"]:
                    text = enuminfo.getText()
                    enum = enuminfo.getEnum()
                    self.entries[(index, subidx)]["EnumInfo"][str(enum)] = text

                self.entries[(index, subidx)]["DefaultValue"] = "0x00" 
            
            # another types
            else:
                if subidx == 0x00:
                    tmp_subidx = 0x00

                try:
                    if obj_content["value"][tmp_subidx]["name"] == "SubItem":
                        sub_name = entry["Name"].split(" - ")[1]
                        for num in range(len(obj_content["value"])):
                            if sub_name == \
                                    obj_content["value"][num]["value"][num].getName():
                                subitem_content = obj_content["value"][tmp_subidx]\
                                                             ["value"][tmp_subidx]
                                value_info = subitem_content.getInfo().getcontent()\
                                                             ["value"][0]["value"][0]
                                tmp_subidx += 1
                                break
                            else:
                                value_info = None
                        
                    else:
                        value_info = \
                                obj_content["value"][tmp_subidx]["value"][tmp_subidx]

                    self.AppendDefaultValue(index, subidx, value_info)

                except:
                    pass

        return self.entries
                   
    # Not Used  
    def AppendDefaultValue(self, index, subidx, value_info=None):
        """
        Get the default value from the ESI xml
        @param index: entry index
        @param subidx: entry sub index
        @param value_info: dictionary of infomation about default value

        """
        # there is not default value.
        if value_info == None:
            return

        raw_value = value_info["value"]
        
        # default value is hex binary type.
        if value_info["name"]  == "DefaultData":
            raw_value_bit = list(hex(raw_value).split("0x")[1])
             
            datatype = self.GetValidDataType(self.entries[(index, subidx)]["Type"])
            if datatype is "string" or datatype is "octet_string":

                if "L" in raw_value_bit:
                    raw_value_bit.remove("L")

                default_value = "".join(raw_value_bit).decode("hex")
           
            elif datatype is "unicode_string":
                default_value = "".join(raw_value_bit).decode("hex").\
                                                           decode("utf-8")
            
            else:   
                bit_num = len(raw_value_bit)
                # padding 
                if not bit_num%2 == 0:
                    raw_value_bit.insert(0, "0")

                default_value_bit = []
            
                # little endian -> big endian
                for num in range(bit_num):
                    if num%2 == 0:
                        default_value_bit.insert(0, raw_value_bit[num])
                        default_value_bit.insert(1, raw_value_bit[num+1])
                
                default_value = "0x%s" % "".join(default_value_bit)

        # default value is string type.
        # this case is not tested yet.
        elif value_info["name"] == "DefaultString":
            default_value = raw_value

        # default value is Hex or Dec type.
        elif value_info["name"] == "DefaultValue":
            default_value = "0x" + hex(ExtractHexDecValue(raw_value))

        self.entries[(index, subidx)]["DefaultValue"] = default_value

    # -------------------------------------------------------------------------------
    #                        Used PDO Monitoring
    # -------------------------------------------------------------------------------
    def RequestPDOInfo(self):
        """
        Load slave information from RootClass (XML data) and parse the information 
        (calling SlavePDOData() method).
        """
        # Load slave information from ESI XML file (def EthercatMaster.py)
        slave = self.Controler.CTNParent.GetSlave(self.Controler.GetSlavePos())

        type_infos = slave.getType()
        device, _alignment = self.Controler.CTNParent.GetModuleInfos(type_infos)
        # Initialize PDO data set
        self.ClearDataSet()

        # if 'device' object is valid, call SavePDOData() to parse PDO data
        if device is not None:
            self.SavePDOData(device)

    def SavePDOData(self, device):
        """
        Parse PDO data and store the results in TXPDOCategory and RXPDOCategory
        Tx(Rx)PDOCategory : index, name, entry number
        Tx(Rx)Info : entry index, sub index, name, length, type
        @param device : Slave information extracted from ESI XML file
        """
        # Parsing TXPDO entries
        for pdo, _pdo_info in ([(pdo, "Inputs") for pdo in device.getTxPdo()]):
            # Save pdo_index, entry, and name of each entry
            pdo_index = ExtractHexDecValue(pdo.getIndex().getcontent())
            entries = pdo.getEntry()
            pdo_name = ExtractName(pdo.getName())
            excludes = pdo.getExclude()
            exclude_list = []
            Sm = pdo.getSm()

            if excludes :
                for exclude in excludes:
                    exclude_list.append(ExtractHexDecValue(exclude.getcontent()))

            # Initialize entry number count
            count = 0

            # Parse entries
            for entry in entries:
                # Save index and subindex
                index = ExtractHexDecValue(entry.getIndex().getcontent())
                subindex = ExtractHexDecValue(entry.getSubIndex())
                # if entry name exists, save entry data
                if ExtractName(entry.getName()) is not None:
                    entry_infos = {
                        "entry_index": index,
                        "subindex": subindex,
                        "name": ExtractName(entry.getName()),
                        "bitlen": entry.getBitLen()
                    }
                    if entry.getDataType() is not None:
                        entry_infos["type"] = entry.getDataType().getcontent()
                    self.TxPDOInfo.append(entry_infos)
                    count += 1

            categorys = {"pdo_index" : pdo_index, "name" : pdo_name, "sm" : Sm,
                         "number_of_entry" : count, "exclude_list" : exclude_list}  
            self.TxPDOCategory.append(categorys)

        # Parsing RxPDO entries
        for pdo, _pdo_info in ([(rxpdo, "Outputs") for rxpdo in device.getRxPdo()]):
            # Save pdo_index, entry, and name of each entry
            pdo_index = ExtractHexDecValue(pdo.getIndex().getcontent())
            entries = pdo.getEntry()
            pdo_name = ExtractName(pdo.getName())
            excludes = pdo.getExclude()
            exclude_list = []
            Sm = pdo.getSm()

            if excludes :
                for exclude in excludes:
                    exclude_list.append(ExtractHexDecValue(exclude.getcontent()))

            # Initialize entry number count
            count = 0

            # Parse entries
            for entry in entries:
                # Save index and subindex
                index = ExtractHexDecValue(entry.getIndex().getcontent())
                subindex = ExtractHexDecValue(entry.getSubIndex())
                # if entry name exists, save entry data
                if ExtractName(entry.getName()) is not None:
                    entry_infos = {
                        "entry_index": index,
                        "subindex": subindex,
                        "name": ExtractName(entry.getName()),
                        "bitlen": str(entry.getBitLen())
                    }
                    if entry.getDataType() is not None:
                        entry_infos["type"] = entry.getDataType().getcontent()
                    self.RxPDOInfo.append(entry_infos)
                    count += 1

            categorys = {"pdo_index" : pdo_index, "name" : pdo_name, "sm" : Sm,
                         "number_of_entry" : count, "exclude_list" : exclude_list}
            self.RxPDOCategory.append(categorys) 

    def GetTxPDOCategory(self):
        """
        Get TxPDOCategory data structure (Meta informaton of TxPDO).
        TxPDOCategorys : index, name, number of entries
        @return TxPDOCategorys
        """
        return self.TxPDOCategory

    def GetRxPDOCategory(self):
        """
        Get RxPDOCategory data structure (Meta information of RxPDO).
        RxPDOCategorys : index, name, number of entries
        @return RxPDOCategorys
        """
        return self.RxPDOCategory

    def GetTxPDOInfo(self):
        """
        Get TxPDOInfo data structure (Detailed information on TxPDO entries).
        TxPDOInfos : entry index, sub index, name, length, type
        @return TxPDOInfos
        """
        return self.TxPDOInfo

    def GetRxPDOInfo(self):
        """
        Get RxPDOInfo data structure (Detailed information on RxPDO entries).
        RxPDOInfos : entry index, sub index, name, length, type
        @return RxPDOInfos
        """
        return self.RxPDOInfo

    def ClearDataSet(self):
        """
        Initialize PDO management data structure.
        """
        self.TxPDOInfo = []
        self.TxPDOCategory = []
        self.RxPDOInfo = []
        self.RxPDOCategory = []

    # -------------------------------------------------------------------------------
    #                        Used EEPROM Management
    # -------------------------------------------------------------------------------
    # Base data types in ETG2000; format = {"Name": "BitSize"}
    BaseDataTypeDict = {"BOOL": "01",
                        "SINT": "02",
                        "INT": "03",
                        "DINT": "04",
                        "USINT": "05",
                        "UINT": "06",
                        "UDINT": "07",
                        "REAL": "08",
                        "INT24": "10",
                        "LREAL": "11",
                        "INT40": "12",
                        "INT48": "13",
                        "INT56": "14",
                        "LINT": "15",
                        "UINT24": "16",
                        "UINT40": "18",
                        "UINT48": "19",
                        "UINT56": "1a",
                        "ULINT": "1b",
                        "BITARR8": "2d",
                        "BITARR16": "2e",
                        "BITARR32": "2f",
                        "BIT1": "30",
                        "BIT2": "31",
                        "BIT3": "32",
                        "BIT4": "33",
                        "BIT5": "34",
                        "BIT6": "35",
                        "BIT7": "36",
                        "BIT8": "37"}

    def GetSmartViewInfos(self):
        """
        Parse XML data for "Smart View" of EEPROM contents.
        @return smartview_infos : EEPROM contents dictionary
        """

        smartview_infos = {"eeprom_size": 128,
                           "pdi_type": 0,
                           "device_emulation": "False",
                           "vendor_id": '0x00000000',
                           "product_code": '0x00000000',
                           "revision_no": '0x00000000',
                           "serial_no": '0x00000000',
                           "supported_mailbox": "",
                           "mailbox_bootstrapconf_outstart": '0',
                           "mailbox_bootstrapconf_outlength": '0',
                           "mailbox_bootstrapconf_instart": '0',
                           "mailbox_bootstrapconf_inlength": '0',
                           "mailbox_standardconf_outstart": '0',
                           "mailbox_standardconf_outlength": '0',
                           "mailbox_standardconf_instart": '0',
                           "mailbox_standardconf_inlength": '0'}

        slave = self.Controler.CTNParent.GetSlave(self.Controler.GetSlavePos())
        type_infos = slave.getType()
        device, _alignment = self.Controler.CTNParent.GetModuleInfos(type_infos)

        # 'device' represents current slave device selected by user
        if device is not None:
            for eeprom_element in device.getEeprom().getcontent():
                # get EEPROM size; <Device>-<Eeprom>-<ByteSize>
                if eeprom_element["name"] == "ByteSize":
                    smartview_infos["eeprom_size"] = eeprom_element

                elif eeprom_element["name"] == "ConfigData":
                    configData_data = self.DecimalToHex(eeprom_element)
                    # get PDI type; <Device>-<Eeprom>-<ConfigData> address 0x00
                    smartview_infos["pdi_type"] = int(configData_data[0:2], 16)
                    # get state of device emulation; <Device>-<Eeprom>-<ConfigData> address 0x01
                    if "{:0>8b}".format(int(configData_data[2:4], 16))[7] == '1':
                        smartview_infos["device_emulation"] = "True"

                elif eeprom_element["name"] == "BootStrap":
                    bootstrap_data = "{:0>16x}".format(eeprom_element)
                    # get bootstrap configuration; <Device>-<Eeprom>-<BootStrap>
                    for cfg, iter in [("mailbox_bootstrapconf_outstart", 0),
                                      ("mailbox_bootstrapconf_outlength", 1),
                                      ("mailbox_bootstrapconf_instart", 2),
                                      ("mailbox_bootstrapconf_inlength", 3)]:
                        smartview_infos[cfg] = str(int(bootstrap_data[4*iter+2:4*(iter+1)]+bootstrap_data[4*iter:4*iter+2], 16))

            # get protocol (profile) types supported by mailbox; <Device>-<Mailbox>
            with device.getMailbox() as mb:
                if mb is not None:
                    for mailbox_protocol in mailbox_protocols:
                        if getattr(mb, "get%s" % mailbox_protocol)() is not None:
                            smartview_infos["supported_mailbox"] += "%s,  " % mailbox_protocol
            smartview_infos["supported_mailbox"] = smartview_infos["supported_mailbox"].strip(", ")

            # get standard configuration of mailbox; <Device>-<Sm>
            for sm_element in device.getSm():
                if sm_element.getcontent() == "MBoxOut":
                    smartview_infos["mailbox_standardconf_outstart"] = str(ExtractHexDecValue(sm_element.getStartAddress()))
                    smartview_infos["mailbox_standardconf_outlength"] = str(ExtractHexDecValue(sm_element.getDefaultSize()))
                elif sm_element.getcontent() == "MBoxIn":
                    smartview_infos["mailbox_standardconf_instart"] = str(ExtractHexDecValue(sm_element.getStartAddress()))
                    smartview_infos["mailbox_standardconf_inlength"] = str(ExtractHexDecValue(sm_element.getDefaultSize()))
                else:
                    pass

            # get device identity from <Device>-<Type>
            # vendor ID; by default, pre-defined value in self.ModulesLibrary
            # if device type in 'vendor' item equals to actual slave device type, set 'vendor_id' to vendor ID.
            for vendor_id, vendor in self.Controler.CTNParent.CTNParent.ModulesLibrary.Library.iteritems():
                for available_device in vendor["groups"][vendor["groups"].keys()[0]]["devices"]:
                    if available_device[0] == type_infos["device_type"]:
                        smartview_infos["vendor_id"] = "0x" + "{:0>8x}".format(vendor_id)

            # product code;
            if device.getType().getProductCode() is not None:
                product_code = device.getType().getProductCode()
                smartview_infos["product_code"] = "0x"+"{:0>8x}".format(ExtractHexDecValue(product_code))

            # revision number;
            if device.getType().getRevisionNo() is not None:
                revision_no = device.getType().getRevisionNo()
                smartview_infos["revision_no"] = "0x"+"{:0>8x}".format(ExtractHexDecValue(revision_no))

            # serial number;
            if device.getType().getSerialNo() is not None:
                serial_no = device.getType().getSerialNo()
                smartview_infos["serial_no"] = "0x"+"{:0>8x}".format(ExtractHexDecValue(serial_no))

            return smartview_infos

        else:
            return None

    def DecimalToHex(self, decnum):
        """
        Convert decimal value into hexadecimal representation.
        @param decnum : decimal value
        @return hex_data : hexadecimal representation of input value in decimal
        """
        value = "%x" % int(decnum, 16)
        value_len = len(value)
        if (value_len % 2) == 0:
            hex_len = value_len
        else:
            hex_len = (value_len // 2) * 2 + 2

        hex_data = ("{:0>"+str(hex_len)+"x}").format(int(decnum, 16))

        return hex_data

    def SiiRead(self):
        """
        Get slave EEPROM contents maintained by master device using "ethercat sii_read -p %d" command.
        Command example : "ethercat sii_read -p 0"
        @return return_val : result of "ethercat sii_read" (binary data)
        """
        _error, return_val = self.Controler.RemoteExec(SII_READ % (self.Controler.GetSlavePos()), return_val=None)
        self.SiiData = return_val
        return return_val

    def SiiWrite(self, binary):
        """
        Overwrite slave EEPROM contents using "ethercat sii_write -p %d" command.
        Command example : "ethercat sii_write -p 0 - (binary contents)"
        @param binary : EEPROM contents in binary data format
        @return return_val : result of "ethercat sii_write" (If it succeeds, the return value is NULL.)
        """
        _error, return_val = self.Controler.RemoteExec(
            SII_WRITE % (self.Controler.GetSlavePos()),
            return_val=None,
            sii_data=binary)
        return return_val

    def LoadData(self):
        """
        Loading data from EEPROM use Sii_Read Method
        @return self.BinaryCode : slave EEPROM data in binary format (zero-padded)
        """
        return_val = self.Controler.CommonMethod.SiiRead()
        self.BinaryCode = return_val
        self.Controler.SiiData = self.BinaryCode

        # append zero-filled padding data up to EEPROM size
        for dummy in range(self.SmartViewInfosFromXML["eeprom_size"] - len(self.BinaryCode)):
            self.BinaryCode = self.BinaryCode + self.HexDecode('ff')[0]

        return self.BinaryCode

    def HexRead(self, binary):
        """
        Convert binary digit representation into hexadecimal representation for "Hex View" menu.
        @param binary : binary digits
        @return hexCode : hexadecimal digits
        @return hexview_table_row, hexview_table_col : Grid size for "Hex View" UI
        """
        row_code = []
        row_text = ""
        row = 0
        hex_code = []

        hexview_table_col = 17

        for index in range(0, len(binary)):
            if len(binary[index]) != 1:
                break
            else:
                digithexstr = hex(ord(binary[index]))

                tempvar2 = digithexstr[2:4]
                if len(tempvar2) == 1:
                    tempvar2 = "0" + tempvar2
                row_code.append(tempvar2)

                if int(digithexstr, 16) >= 32 and int(digithexstr, 16) <= 126:
                    row_text = row_text + chr(int(digithexstr, 16))
                else:
                    row_text = row_text + "."

                if index != 0:
                    if len(row_code) == (hexview_table_col - 1):
                        row_code.append(row_text)
                        hex_code.append(row_code)
                        row_text = ""
                        row_code = []
                        row = row + 1

        hexview_table_row = row

        return hex_code, hexview_table_row, hexview_table_col

    def GenerateEEPROMList(self, data, direction, length):
        """
        Generate EEPROM data list by reconstructing 'data' string.
        example : data="12345678", direction=0, length=8 -> eeprom_list=['12', '34', '56', '78']
                  data="12345678", direction=1, length=8 -> eeprom_list=['78', '56', '34', '12']
        @param data : string to be reconstructed
        @param direction : endianness
        @param length : data length
        @return eeprom_list : reconstructed list data structure
        """
        eeprom_list = []

        if direction is 0 or 1:
            for dummy in range(length//2):
                if data == "":
                    eeprom_list.append("00")
                else:
                    eeprom_list.append(data[direction*(length-2):direction*(length-2)+2])
                data = data[(1-direction)*2:length-direction*2]
                length -= 2
        return eeprom_list

    def XmlToEeprom(self):
        """
        Extract slave EEPROM contents using slave ESI XML file.
          - Mandatory parts
          - String category : ExtractEEPROMStringCategory()
          - General category : ExtractEEPROMGeneralCategory()
          - FMMU category : ExtractEEPROMFMMUCategory
          - SyncM category : ExtractEEPROMSyncMCategory()
          - Tx/RxPDO category : ExtractEEPROMPDOCategory()
          - DC category : ExtractEEPROMDCCategory()
        @return eeprom_binary
        """
        eeprom = []
        data = ""
        eeprom_size = 0
        eeprom_binary = ""

        # 'device' is the slave device of the current EtherCAT slave plugin
        slave = self.Controler.CTNParent.GetSlave(self.Controler.GetSlavePos())
        type_infos = slave.getType()
        device, _alignment = self.Controler.CTNParent.GetModuleInfos(type_infos)

        if device is not None:
            # get ConfigData for EEPROM offset 0x0000-0x000d; <Device>-<Eeprom>-<ConfigData>
            for eeprom_element in device.getEeprom().getcontent():
                if eeprom_element["name"] == "ConfigData":
                    data = self.DecimalToHex(eeprom_element)
            eeprom += self.GenerateEEPROMList(data, 0, 28)

            # calculate CRC for EEPROM offset 0x000e-0x000f
            crc = 0x48
            for segment in eeprom:
                for i in range(8):
                    bit = crc & 0x80
                    crc = (crc << 1) | ((int(segment, 16) >> (7 - i)) & 0x01)
                    if bit:
                        crc ^= 0x07
            for dummy in range(8):
                bit = crc & 0x80
                crc <<= 1
                if bit:
                    crc ^= 0x07
            eeprom.append(hex(crc)[len(hex(crc))-3:len(hex(crc))-1])
            eeprom.append("00")

            # get VendorID for EEPROM offset 0x0010-0x0013;
            data = ""
            for vendor_id, vendor in self.Controler.CTNParent.CTNParent.ModulesLibrary.Library.iteritems():
                for available_device in vendor["groups"][vendor["groups"].keys()[0]]["devices"]:
                    if available_device[0] == type_infos["device_type"]:
                        data = "{:0>8x}".format(vendor_id)
            eeprom += self.GenerateEEPROMList(data, 1, 8)

            # get Product Code for EEPROM offset 0x0014-0x0017;
            data = ""
            if device.getType().getProductCode() is not None:
                data = "{:0>8x}".format(ExtractHexDecValue(device.getType().getProductCode()))
            eeprom += self.GenerateEEPROMList(data, 1, 8)

            # get Revision Number for EEPROM offset 0x0018-0x001b;
            data = ""
            if device.getType().getRevisionNo() is not None:
                data = "{:0>8x}".format(ExtractHexDecValue(device.getType().getRevisionNo()))
            eeprom += self.GenerateEEPROMList(data, 1, 8)

            # get Serial Number for EEPROM 0x001c-0x001f;
            data = ""
            if device.getType().getSerialNo() is not None:
                data = "{:0>8x}".format(ExtractHexDecValue(device.getType().getSerialNo()))
            eeprom += self.GenerateEEPROMList(data, 1, 8)

            # get Execution Delay for EEPROM 0x0020-0x0021; not analyzed yet
            eeprom.append("00")
            eeprom.append("00")

            # get Port0/1 Delay for EEPROM offset 0x0022-0x0025; not analyzed yet
            eeprom.append("00")
            eeprom.append("00")
            eeprom.append("00")
            eeprom.append("00")

            # reserved for EEPROM offset 0x0026-0x0027;
            eeprom.append("00")
            eeprom.append("00")

            # get BootStrap for EEPROM offset 0x0028-0x002e; <Device>-<Eeprom>-<BootStrap>
            data = ""
            for eeprom_element in device.getEeprom().getcontent():
                if eeprom_element["name"] == "BootStrap":
                    data = "{:0>16x}".format(int(eeprom_element,16))
            eeprom += self.GenerateEEPROMList(data, 0, 16)

            # get Standard Mailbox for EEPROM offset 0x0030-0x0037; <Device>-<sm>
            data = ""
            standard_send_mailbox_offset = None
            standard_send_mailbox_size = None
            standard_receive_mailbox_offset = None
            standard_receive_mailbox_size = None
            for sm_element in device.getSm():
                if sm_element.getcontent() == "MBoxOut":
                    standard_receive_mailbox_offset = "{:0>4x}".format(ExtractHexDecValue(sm_element.getStartAddress()))
                    standard_receive_mailbox_size = "{:0>4x}".format(ExtractHexDecValue(sm_element.getDefaultSize()))
                elif sm_element.getcontent() == "MBoxIn":
                    standard_send_mailbox_offset = "{:0>4x}".format(ExtractHexDecValue(sm_element.getStartAddress()))
                    standard_send_mailbox_size = "{:0>4x}".format(ExtractHexDecValue(sm_element.getDefaultSize()))

            if standard_receive_mailbox_offset is None:
                eeprom.append("00")
                eeprom.append("00")
            else:
                eeprom.append(standard_receive_mailbox_offset[2:4])
                eeprom.append(standard_receive_mailbox_offset[0:2])
            if standard_receive_mailbox_size is None:
                eeprom.append("00")
                eeprom.append("00")
            else:
                eeprom.append(standard_receive_mailbox_size[2:4])
                eeprom.append(standard_receive_mailbox_size[0:2])
            if standard_send_mailbox_offset is None:
                eeprom.append("00")
                eeprom.append("00")
            else:
                eeprom.append(standard_send_mailbox_offset[2:4])
                eeprom.append(standard_send_mailbox_offset[0:2])
            if standard_send_mailbox_size is None:
                eeprom.append("00")
                eeprom.append("00")
            else:
                eeprom.append(standard_send_mailbox_size[2:4])
                eeprom.append(standard_send_mailbox_size[0:2])

            # get supported mailbox protocols for EEPROM offset 0x0038-0x0039;
            data = 0
            with device.getMailbox() as mb:
                if mb is not None:
                    for bit, mbprot in enumerate(mailbox_protocols):
                        if getattr(mb, "get%s" % mbprot)() is not None:
                            data += 1 << bit
            data = "{:0>4x}".format(data)
            eeprom.append(data[2:4])
            eeprom.append(data[0:2])

            # resereved for EEPROM offset 0x003a-0x007b;
            for i in range(0x007b-0x003a+0x0001):
                eeprom.append("00")

            # get EEPROM size for EEPROM offset 0x007c-0x007d;
            # Modify by jblee because of update IDE module (minidom -> lxml) 
            data = ""
            for eeprom_element in device.getEeprom().getchildren():
                if eeprom_element.tag == "ByteSize":
                    eeprom_size = int(objectify.fromstring(eeprom_element.tostring()).text)
                    data = "{:0>4x}".format(eeprom_size/1024*8-1)

            if data == "":
                eeprom.append("00")
                eeprom.append("00")
            else:
                eeprom.append(data[2:4])
                eeprom.append(data[0:2])

            # Version for EEPROM 0x007e-0x007f;
            # According to "EtherCAT Slave Device Description(V0.3.0)"
            eeprom.append("01")
            eeprom.append("00")

            # append String Category data
            for data in self.ExtractEEPROMStringCategory(device):
                eeprom.append(data)

            # append General Category data
            for data in self.ExtractEEPROMGeneralCategory(device):
                eeprom.append(data)

            # append FMMU Category data
            for data in self.ExtractEEPROMFMMUCategory(device):
                eeprom.append(data)

            # append SyncM Category data
            for data in self.ExtractEEPROMSyncMCategory(device):
                eeprom.append(data)

            # append TxPDO Category data
            for data in self.ExtractEEPROMPDOCategory(device, "TxPdo"):
                eeprom.append(data)

            # append RxPDO Category data
            for data in self.ExtractEEPROMPDOCategory(device, "RxPdo"):
                eeprom.append(data)

            # append DC Category data
            for data in self.ExtractEEPROMDCCategory(device):
                eeprom.append(data)

            # append padding
            padding = eeprom_size-len(eeprom)
            for i in range(padding):
                eeprom.append("ff")

            # convert binary code
            for index in range(eeprom_size):
                eeprom_binary = eeprom_binary + self.HexDecode(eeprom[index])[0]

            return eeprom_binary

    def ExtractEEPROMStringCategory(self, device):
        """
        Extract "Strings" category data from slave ESI XML and generate EEPROM image data.
        @param device : 'device' object in the slave ESI XML
        @return eeprom : "Strings" category EEPROM image data
        """
        eeprom = []
        self.Strings = []
        data = ""
        count = 0        # string counter
        padflag = False  # padding flag if category length is odd

        # index information for General Category in EEPROM
        self.GroupIdx = 0
        self.ImgIdx = 0
        self.OrderIdx = 0
        self.NameIdx = 0

        # flag for preventing duplicated vendor specific data
        typeflag = False
        grouptypeflag = False
        groupnameflag = False
        devnameflag = False
        imageflag = False

        # vendor specific data
        #   element1; <EtherCATInfo>-<Descriptions>-<Devices>-<Device>-<Type>
        #   vendor_specific_data : vendor specific data (binary type)
        vendor_specific_data = ""
        #   vendor_spec_strings : list of vendor specific "strings" for preventing duplicated strings
        vendor_spec_strings = []
        for element in device.getType().getcontent():
            data += element
        if data != "" and isinstance(data, text):
            for vendor_spec_string in vendor_spec_strings:
                if data == vendor_spec_string:
                    self.OrderIdx = vendor_spec_strings.index(data)+1
                    typeflag = True
                    break
            if typeflag is False:
                count += 1
                self.Strings.append(data)
                vendor_spec_strings.append(data)
                typeflag = True
                self.OrderIdx = count
                vendor_specific_data += "{:0>2x}".format(len(data))
                for character in range(len(data)):
                    vendor_specific_data += "{:0>2x}".format(ord(data[character]))
        data = ""

        # element2-1; <EtherCATInfo>-<Descriptions>-<Devices>-<Device>-<GroupType>
        data = device.getGroupType()
        if data is not None and isinstance(data, text):
            for vendor_spec_string in vendor_spec_strings:
                if data == vendor_spec_string:
                    self.GroupIdx = vendor_spec_strings.index(data)+1
                    grouptypeflag = True
                    break
            if grouptypeflag is False:
                count += 1
                self.Strings.append(data)
                vendor_spec_strings.append(data)
                grouptypeflag = True
                self.GroupIdx = count
                vendor_specific_data += "{:0>2x}".format(len(data))
                for character in range(len(data)):
                    vendor_specific_data += "{:0>2x}".format(ord(data[character]))

        #  element2-2; <EtherCATInfo>-<Groups>-<Group>-<Type>
        if grouptypeflag is False:
            if self.Controler.CTNParent.CTNParent.ModulesLibrary.Library is not None:
                for _vendor_id, vendor in self.Controler.CTNParent.CTNParent.ModulesLibrary.Library.iteritems():
                    for group_type, group_etc in vendor["groups"].iteritems():
                        for device_item in group_etc["devices"]:
                            if device == device_item[1]:
                                data = group_type
                if data is not None and isinstance(data, text):
                    for vendor_spec_string in vendor_spec_strings:
                        if data == vendor_spec_string:
                            self.GroupIdx = vendor_spec_strings.index(data)+1
                            grouptypeflag = True
                            break
                    if grouptypeflag is False:
                        count += 1
                        self.Strings.append(data)
                        vendor_spec_strings.append(data)
                        grouptypeflag = True
                        self.GroupIdx = count
                        vendor_specific_data += "{:0>2x}".format(len(data))
                        for character in range(len(data)):
                            vendor_specific_data += "{:0>2x}".format(ord(data[character]))
        data = ""

        #  element3; <EtherCATInfo>-<Descriptions>-<Groups>-<Group>-<Name(LcId is "1033")>
        if self.Controler.CTNParent.CTNParent.ModulesLibrary.Library is not None:
            for _vendorId, vendor in self.Controler.CTNParent.CTNParent.ModulesLibrary.Library.iteritems():
                for group_type, group_etc in vendor["groups"].iteritems():
                    for device_item in group_etc["devices"]:
                        if device == device_item[1]:
                            data = group_etc["name"]
        if data != "" and isinstance(data, text):
            for vendor_spec_string in vendor_spec_strings:
                if data == vendor_spec_string:
                    groupnameflag = True
                    break
            if groupnameflag is False:
                count += 1
                self.Strings.append(data)
                vendor_spec_strings.append(data)
                groupnameflag = True
                vendor_specific_data += "{:0>2x}".format(len(data))
                for character in range(len(data)):
                    vendor_specific_data += "{:0>2x}".format(ord(data[character]))

        data = ""

        #  element4; <EtherCATInfo>-<Descriptions>-<Devices>-<Device>-<Name(LcId is "1033" or "1"?)>
        for element in device.getName():
            if element.getLcId() == 1 or element.getLcId() == 1033:
                data = element.getcontent()
        if data != "" and isinstance(data, text):
            for vendor_spec_string in vendor_spec_strings:
                if data == vendor_spec_string:
                    self.NameIdx = vendor_spec_strings.index(data)+1
                    devnameflag = True
                    break
            if devnameflag is False:
                count += 1
                self.Strings.append(data)
                vendor_spec_strings.append(data)
                devnameflag = True
                self.NameIdx = count
                vendor_specific_data += "{:0>2x}".format(len(data))
                for character in range(len(data)):
                    vendor_specific_data += "{:0>2x}".format(ord(data[character]))
        data = ""

        #  element5-1; <EtherCATInfo>-<Descriptions>-<Devices>-<Device>-<Image16x14>
        if device.getcontent() is not None:
            data = device.getcontent()
            if data is not None and isinstance(data, text):
                for vendor_spec_string in vendor_spec_strings:
                    if data == vendor_spec_string:
                        self.ImgIdx = vendor_spec_strings.index(data)+1
                        imageflag = True
                        break
                if imageflag is False:
                    count += 1
                    self.Strings.append(data)
                    vendor_spec_strings.append(data)
                    imageflag = True
                    self.ImgIdx = count
                    vendor_specific_data += "{:0>2x}".format(len(data))
                    for character in range(len(data)):
                        vendor_specific_data += "{:0>2x}".format(ord(data[character]))

        #  element5-2; <EtherCATInfo>-<Descriptions>-<Groups>-<Group>-<Image16x14>
        if imageflag is False:
            if self.Controler.CTNParent.CTNParent.ModulesLibrary.Library is not None:
                for _vendor_id, vendor in self.Controler.CTNParent.CTNParent.ModulesLibrary.Library.iteritems():
                    for group_type, group_etc in vendor["groups"].iteritems():
                        for device_item in group_etc["devices"]:
                            if device == device_item[1]:
                                data = group_etc
                if data is not None and isinstance(data, text):
                    for vendor_spec_string in vendor_spec_strings:
                        if data == vendor_spec_string:
                            self.ImgIdx = vendor_spec_strings.index(data)+1
                            imageflag = True
                            break
                    if imageflag is False:
                        count += 1
                        self.Strings.append(data)
                        vendor_spec_strings.append(data)
                        imageflag = True
                        self.ImgIdx = count
                        vendor_specific_data += "{:0>2x}".format(len(data))
                        for character in range(len(data)):
                            vendor_specific_data += "{:0>2x}".format(ord(data[character]))
        data = ""

        # DC related elements
        #  <EtherCATInfo>-<Descriptions>-<Devices>-<Device>-<Dc>-<OpMode>-<Name>
        dc_related_elements = ""
        if device.getDc() is not None:
            for element in device.getDc().getOpMode():
                data = element.getName()
                if data != "":
                    count += 1
                    self.Strings.append(data)
                    dc_related_elements += "{:0>2x}".format(len(data))
                    for character in range(len(data)):
                        dc_related_elements += "{:0>2x}".format(ord(data[character]))
                    data = ""

        # Input elements(TxPDO)
        #  <EtherCATInfo>-<Descriptions>-<Devices>-<Device>-<TxPdo>; Name
        input_elements = ""
        inputs = []
        for element in device.getTxPdo():
            for name in element.getName():
                data = name.getcontent()
            for input in inputs:
                if data == input:
                    data = ""
            if data != "":
                count += 1
                self.Strings.append(data)
                inputs.append(data)
                input_elements += "{:0>2x}".format(len(data))
                for character in range(len(data)):
                    input_elements += "{:0>2x}".format(ord(data[character]))
                data = ""
            for entry in element.getEntry():
                for name in entry.getName():
                    data = name.getcontent()
                for input in inputs:
                    if data == input:
                        data = ""
                if data != "":
                    count += 1
                    self.Strings.append(data)
                    inputs.append(data)
                    input_elements += "{:0>2x}".format(len(data))
                    for character in range(len(data)):
                        input_elements += "{:0>2x}".format(ord(data[character]))
                    data = ""

        # Output elements(RxPDO)
        #  <EtherCATInfo>-<Descriptions>-<Devices>-<Device>-<RxPdo>; Name
        output_elements = ""
        outputs = []
        for element in device.getRxPdo():
            for name in element.getName():
                data = name.getcontent()
            for output in outputs:
                if data == output:
                    data = ""
            if data != "":
                count += 1
                self.Strings.append(data)
                outputs.append(data)
                output_elements += "{:0>2x}".format(len(data))
                for character in range(len(data)):
                    output_elements += "{:0>2x}".format(ord(data[character]))
                data = ""
            for entry in element.getEntry():
                for name in entry.getName():
                    data = name.getcontent()
                for output in outputs:
                    if data == output:
                        data = ""
                if data != "":
                    count += 1
                    self.Strings.append(data)
                    outputs.append(data)
                    output_elements += "{:0>2x}".format(len(data))
                    for character in range(len(data)):
                        output_elements += "{:0>2x}".format(ord(data[character]))
                    data = ""

        # form eeprom data
        #  category header
        eeprom.append("0a")
        eeprom.append("00")
        #  category length (word); 1 word is 4 bytes. "+2" is the length of string's total number
        length = len(vendor_specific_data + dc_related_elements + input_elements + output_elements) + 2
        if length % 4 == 0:
            pass
        else:
            length += length % 4
            padflag = True
        eeprom.append("{:0>4x}".format(length//4)[2:4])
        eeprom.append("{:0>4x}".format(length//4)[0:2])
        #  total numbers of strings
        eeprom.append("{:0>2x}".format(count))
        for element in [vendor_specific_data,
                        dc_related_elements,
                        input_elements,
                        output_elements]:
            for dummy in range(len(element)//2):
                if element == "":
                    eeprom.append("00")
                else:
                    eeprom.append(element[0:2])
                element = element[2:len(element)]
        # padding if length is odd bytes
        if padflag is True:
            eeprom.append("ff")

        return eeprom

    def ExtractEEPROMGeneralCategory(self, device):
        """
        Extract "General" category data from slave ESI XML and generate EEPROM image data.
        @param device : 'device' object in the slave ESI XML
        @return eeprom : "Strings" category EEPROM image data
        """
        eeprom = []

        # category header
        eeprom.append("1e")
        eeprom.append("00")

        # category length
        eeprom.append("10")
        eeprom.append("00")

        # word 1 : Group Type index and Image index in STRINGS Category
        eeprom.append("{:0>2x}".format(self.GroupIdx))
        eeprom.append("{:0>2x}".format(self.ImgIdx))

        # word 2 : Device Type index and Device Name index in STRINGS Category
        eeprom.append("{:0>2x}".format(self.OrderIdx))
        eeprom.append("{:0>2x}".format(self.NameIdx))

        # word 3 : Physical Layer Port info. and CoE Details
        eeprom.append("01")  # Physical Layer Port info - assume 01
        #  CoE Details; <EtherCATInfo>-<Descriptions>-<Devices>-<Device>-<Mailbox>-<CoE>
        coe_details = 1  # sdo enabled
        with device.getMailbox() as mb
            if mb is not None:
                coe = mb.getCoE()
                if coe is not None:
                    for bit, flag in enumerate(["SdoInfo", "PdoAssign", "PdoConfig",
                                                "PdoUpload", "CompleteAccess"]):
                        if getattr(coe, "get%s" % flag)() is not None:
                            coe_details += 1 << bit
            eeprom.append("{:0>2x}".format(coe_details))

            # word 4 : FoE Details and EoE Details
            #  FoE Details; <EtherCATInfo>-<Descriptions>-<Devices>-<Device>-<Mailbox>-<FoE>
            if mb is not None and mb.getFoE() is not None:
                eeprom.append("01")
            else:
                eeprom.append("00")
            #  EoE Details; <EtherCATInfo>-<Descriptions>-<Devices>-<Device>-<Mailbox>-<EoE>
            if mb is not None and mb.getEoE() is not None:
                eeprom.append("01")
            else:
                eeprom.append("00")

            # word 5 : SoE Channels(reserved) and DS402 Channels
            #  SoE Details; <EtherCATInfo>-<Descriptions>-<Devices>-<Device>-<Mailbox>-<SoE>
            if mb is not None and mb.getSoE() is not None:
                eeprom.append("01")
            else:
                eeprom.append("00")
            #  DS402Channels; <EtherCATInfo>-<Descriptions>-<Devices>-<Device>-<Mailbox>-<CoE>: DS402Channels
            ds402ch = False
            if mb is not None:
                coe = mb.getCoE()
                if coe is not None:
                    ds402ch = coe.getDS402Channels()
        eeprom.append("01" if ds402ch in [True, 1] else "00")

        # word 6 : SysmanClass(reserved) and Flags
        eeprom.append("00")  # reserved
        #  Flags
        en_safeop = False
        en_lrw = False
        if device.getType().getTcCfgModeSafeOp() is True \
           or device.getType().getTcCfgModeSafeOp() == 1:
            en_safeop = True
        if device.getType().getUseLrdLwr() is True \
           or device.getType().getUseLrdLwr() == 1:
            en_lrw = True

        flags = "0b"+"000000"+str(int(en_lrw))+str(int(en_safeop))
        eeprom.append("{:0>2x}".format(int(flags, 2)))

        # word 7 : Current On EBus (assume 0x0000)
        eeprom.append("00")
        eeprom.append("00")
        # after word 7; couldn't analyze yet
        eeprom.append("03")
        eeprom.append("00")
        eeprom.append("11")
        eeprom.append("00")
        eeprom.append("00")
        eeprom.append("00")
        eeprom.append("00")
        eeprom.append("00")
        eeprom.append("00")
        eeprom.append("00")
        eeprom.append("00")
        eeprom.append("00")
        eeprom.append("00")
        eeprom.append("00")
        eeprom.append("00")
        eeprom.append("00")
        eeprom.append("00")
        eeprom.append("00")

        return eeprom

    def ExtractEEPROMFMMUCategory(self, device):
        """
        Extract "FMMU" category data from slave ESI XML and generate EEPROM image data.
        @param device : 'device' object in the slave ESI XML
        @return eeprom : "Strings" category EEPROM image data
        """
        eeprom = []
        data = ""
        count = 0  # number of FMMU
        padflag = False

        for fmmu in device.getFmmu():
            count += 1
            if fmmu.getcontent() == "Outputs":
                data += "01"
            if fmmu.getcontent() == "Inputs":
                data += "02"
            if fmmu.getcontent() == "MBoxState":
                data += "03"

        # construct of EEPROM data
        if data != "":
            #  category header
            eeprom.append("28")
            eeprom.append("00")
            #  category length
            if count % 2 == 1:
                padflag = True
                eeprom.append("{:0>4x}".format((count+1)//2)[2:4])
                eeprom.append("{:0>4x}".format((count+1)//2)[0:2])
            else:
                eeprom.append("{:0>4x}".format((count)//2)[2:4])
                eeprom.append("{:0>4x}".format((count)//2)[0:2])
            for dummy in range(count):
                if data == "":
                    eeprom.append("00")
                else:
                    eeprom.append(data[0:2])
                data = data[2:len(data)]
            #  padding if length is odd bytes
            if padflag is True:
                eeprom.append("ff")

        return eeprom

    def ExtractEEPROMSyncMCategory(self, device):
        """
        Extract "SyncM" category data from slave ESI XML and generate EEPROM image data.
        @param device : 'device' object in the slave ESI XML
        @return eeprom : "Strings" category EEPROM image data
        """
        eeprom = []
        data = ""
        number = {"MBoxOut": "01", "MBoxIn": "02", "Outputs": "03", "Inputs": "04"}

        for sm in device.getSm():
            for attr in [sm.getStartAddress(),
                         sm.getDefaultSize(),
                         sm.getControlByte()]:
                if attr is not None:
                    data += "{:0>4x}".format(ExtractHexDecValue(attr))[2:4]
                    data += "{:0>4x}".format(ExtractHexDecValue(attr))[0:2]
                else:
                    data += "0000"
            if sm.getEnable() == "1" or sm.getEnable() is True:
                data += "01"
            else:
                data += "00"
            data += number[sm.getcontent()]

        if data != "":
            #  category header
            eeprom.append("29")
            eeprom.append("00")
            #  category length
            eeprom.append("{:0>4x}".format(len(data)//4)[2:4])
            eeprom.append("{:0>4x}".format(len(data)//4)[0:2])
            for dummy in range(len(data)//2):
                if data == "":
                    eeprom.append("00")
                else:
                    eeprom.append(data[0:2])
                data = data[2:len(data)]

        return eeprom

    def ExtractEEPROMPDOCategory(self, device, pdotype):
        """
        Extract ""PDO (Tx, Rx)"" category data from slave ESI XML and generate EEPROM image data.
        @param device : 'device' object in the slave ESI XML
        @param pdotype : identifier whether "TxPDO" or "RxPDO".
        @return eeprom : "Strings" category EEPROM image data
        """
        eeprom = []
        data = ""
        count = 0
        en_fixed = False
        en_mandatory = False
        en_virtual = False

        for element in eval("device.get%s()" % pdotype):
            #  PDO Index
            data += "{:0>4x}".format(ExtractHexDecValue(element.getIndex().getcontent()))[2:4]
            data += "{:0>4x}".format(ExtractHexDecValue(element.getIndex().getcontent()))[0:2]
            #  Number of Entries
            data += "{:0>2x}".format(len(element.getEntry()))
            #  About Sync Manager
            if element.getSm() is not None:
                data += "{:0>2x}".format(element.getSm())
            else:
                data += "ff"
            #  Reference to DC Synch (according to ET1100 documentation) - assume 0
            data += "00"
            #  Name Index
            objname = ""
            for name in element.getName():
                objname = name.getcontent()
            for name in self.Strings:
                count += 1
                if objname == name:
                    break
            if len(self.Strings)+1 == count:
                data += "00"
            else:
                data += "{:0>2x}".format(count)
            count = 0
            #  Flags; by Fixed, Mandatory, Virtual attributes ?
            if element.getFixed() is True or 1:
                en_fixed = True
            if element.getMandatory() is True or 1:
                en_mandatory = True
            if element.getVirtual() is True or element.getVirtual():
                en_virtual = True
            data += str(int(en_fixed)) + str(int(en_mandatory)) + str(int(en_virtual)) + "0"

            for entry in element.getEntry():
                #   Entry Index
                data += "{:0>4x}".format(ExtractHexDecValue(entry.getIndex().getcontent()))[2:4]
                data += "{:0>4x}".format(ExtractHexDecValue(entry.getIndex().getcontent()))[0:2]
                #   Subindex
                data += "{:0>2x}".format(int(entry.getSubIndex()))
                #   Entry Name Index
                objname = ""
                for name in entry.getName():
                    objname = name.getcontent()
                for name in self.Strings:
                    count += 1
                    if objname == name:
                        break
                if len(self.Strings)+1 == count:
                    data += "00"
                else:
                    data += "{:0>2x}".format(count)
                count = 0
                #   DataType
                if entry.getDataType() is not None:
                    if entry.getDataType().getcontent() in self.BaseDataTypeDict:
                        data += self.BaseDataTypeDict[entry.getDataType().getcontent()]
                    else:
                        data += "00"
                else:
                    data += "00"
                #   BitLen
                if entry.getBitLen() is not None:
                    data += "{:0>2x}".format(int(entry.getBitLen()))
                else:
                    data += "00"
                #   Flags; by Fixed attributes ?
                en_fixed = False
                if entry.getFixed() is True or entry.getFixed() == 1:
                    en_fixed = True
                data += str(int(en_fixed)) + "000"

        if data != "":
            #  category header
            if pdotype == "TxPdo":
                eeprom.append("32")
            elif pdotype == "RxPdo":
                eeprom.append("33")
            else:
                eeprom.append("00")
            eeprom.append("00")
            #  category length
            eeprom.append("{:0>4x}".format(len(data)//4)[2:4])
            eeprom.append("{:0>4x}".format(len(data)//4)[0:2])
            data = str(data.lower())
            for dummy in range(len(data)//2):
                if data == "":
                    eeprom.append("00")
                else:
                    eeprom.append(data[0:2])
                data = data[2:len(data)]

        return eeprom

    def ExtractEEPROMDCCategory(self, device):
        """
        Extract "DC(Distributed Clock)" category data from slave ESI XML and generate EEPROM image data.
        @param device : 'device' object in the slave ESI XML
        @return eeprom : "Strings" category EEPROM image data
        """
        eeprom = []
        data = ""
        count = 0
        namecount = 0

        if device.getDc() is not None:
            for element in device.getDc().getOpMode():
                count += 1
                #  assume that word 1-7 are 0x0000
                data += "0000"
                data += "0000"
                data += "0000"
                data += "0000"
                data += "0000"
                data += "0000"
                data += "0000"
                #  word 8-10
                #  AssignActivate
                if element.getAssignActivate() is not None:
                    data += "{:0>4x}".format(ExtractHexDecValue(element.getAssignActivate()))[2:4]
                    data += "{:0>4x}".format(ExtractHexDecValue(element.getAssignActivate()))[0:2]
                else:
                    data += "0000"
                #  Factor of CycleTimeSync0 ? and default is 1?
                if element.getCycleTimeSync0() is not None:
                    if element.getCycleTimeSync0().getFactor() is not None:
                        data += "{:0>2x}".format(int(element.getCycleTimeSync0().getFactor()))
                        data += "00"
                    else:
                        data += "0100"
                else:
                    data += "0100"
                #  Index of Name in STRINGS Category
                #  Name Index
                objname = ""
                for name in element.getName():
                    objname += name
                for name in self.Strings:
                    namecount += 1
                    if objname == name:
                        break
                if len(self.Strings)+1 == namecount:
                    data += "00"
                else:
                    data += "{:0>2x}".format(namecount)
                namecount = 0
                data += "00"
                #  assume that word 11-12 are 0x0000
                data += "0000"
                data += "0000"

        if data != "":
            #  category header
            eeprom.append("3c")
            eeprom.append("00")
            #  category length
            eeprom.append("{:0>4x}".format(len(data)//4)[2:4])
            eeprom.append("{:0>4x}".format(len(data)//4)[0:2])
            data = str(data.lower())
            for dummy in range(len(data)//2):
                if data == "":
                    eeprom.append("00")
                else:
                    eeprom.append(data[0:2])
                data = data[2:len(data)]

        return eeprom

    # -------------------------------------------------------------------------------
    #                        Used Register Access
    # -------------------------------------------------------------------------------
    def RegRead(self, offset, length):
        """
        Read slave ESC register content using "ethercat reg_read -p %d %s %s" command.
        Command example : "ethercat reg_read -p 0 0x0c00 0x0400"
        @param offset : register address
        @param length : register length
        @return return_val : register data
        """
        _error, return_val = self.Controler.RemoteExec(
            REG_READ % (self.Controler.GetSlavePos(), offset, length),
            return_val=None)
        return return_val

    def MultiRegRead(self, slave_num, reg_infos):
        """
        
        @slave_num:
        @param addr_info:
        @return return_val: 
        """
        reg_info_str = ""
        for reg_info in reg_infos:
            reg_info_str = reg_info_str + "%s|" % reg_info
        reg_info_str = reg_info_str.strip("|")

        _error, return_val = self.Controler.RemoteExec(\
            MULTI_REG_READ%(slave_num, reg_info_str),
            return_val = None)
        
        return return_val
    
    def RegWrite(self, address, data):
        """
        Write data to slave ESC register using "ethercat reg_write -p %d %s %s" command.
        Command example : "ethercat reg_write -p 0 0x0c04 0x0001"
        @param address : register address
        @param data : data to write
        @return return_val : the execution result of "ethercat reg_write" (for error check)
        """
        _error, return_val = self.Controler.RemoteExec(
            REG_WRITE % (self.Controler.GetSlavePos(), address, data),
            return_val=None)
        return return_val

    def Rescan(self):
        """
        Synchronize EEPROM data in master controller with the data in slave device after EEPROM write.
        Command example : "ethercat rescan -p 0"
        """
        _error, _return_val = self.Controler.RemoteExec(RESCAN % (self.Controler.GetSlavePos()), return_val=None)

    # -------------------------------------------------------------------------------
    #                        Used DC Configuration
    #-------------------------------------------------------------------------------
    def LoadESIData(self):
        return_data = []
        slave = self.Controler.CTNParent.GetSlave(self.Controler.GetSlavePos())
        type_infos = slave.getType()
        device, alignment = self.Controler.CTNParent.GetModuleInfos(type_infos)
        if device.getDc() is not None:
            for OpMode in device.getDc().getOpMode():
                temp_data = {
                    "desc" : OpMode.getDesc() if OpMode.getDesc() is not None else "Unused",
                    "assign_activate" : OpMode.getAssignActivate() \
                        if OpMode.getAssignActivate() is not None else "#x0000",
                    "cycletime_sync0" : OpMode.getCycleTimeSync0().getcontent() \
                        if OpMode.getCycleTimeSync0() is not None else None,
                    "shifttime_sync0" : OpMode.getShiftTimeSync0().getcontent() \
                        if OpMode.getShiftTimeSync0() is not None else None,
                    "cycletime_sync1" : OpMode.getShiftTimeSync1().getcontent() \
                        if OpMode.getShiftTimeSync1() is not None else None,
                    "shifttime_sync1" : OpMode.getShiftTimeSync1().getcontent() \
                        if OpMode.getShiftTimeSync1() is not None else None
                }

                if OpMode.getCycleTimeSync0() is not None:
                    temp_data["cycletime_sync0_factor"] = OpMode.getCycleTimeSync0().getFactor()

                if OpMode.getCycleTimeSync1() is not None:
                    temp_data["cycletime_sync1_factor"] = OpMode.getCycleTimeSync1().getFactor()

                return_data.append(temp_data)

        return return_data
    
    #-------------------------------------------------------------------------------
    #                        Common Use Methods
    # -------------------------------------------------------------------------------
    def CheckConnect(self, cyclic_flag):
        """
        Check connection status (1) between Beremiz and the master (2) between the master and the slave.
        @param cyclic_flag: 0 - one shot, 1 - periodic
        @return True or False
        """
        if self.Controler.GetCTRoot()._connector is not None:
            # Check connection between the master and the slave.
            # Command example : "ethercat xml -p 0"
            _error, return_val = self.Controler.RemoteExec(SLAVE_XML % (self.Controler.GetSlavePos()), return_val=None)
            number_of_lines = return_val.split("\n")
            if len(number_of_lines) <= 2:  # No slave connected to the master controller
                if not cyclic_flag:
                    self.CreateErrorDialog(_('No connected slaves'))
                return False

            elif len(number_of_lines) > 2:
                return True
        else:
            # The master controller is not connected to Beremiz host
            if not cyclic_flag:
                self.CreateErrorDialog(_('PLC not connected!'))
            return False

    def CreateErrorDialog(self, mention):
        """
        Create a dialog to indicate error or warning.
        @param mention : Error String
        """
        app_frame = self.Controler.GetCTRoot().AppFrame
        dlg = wx.MessageDialog(app_frame, mention,
                               _(' Warning...'),
                               wx.OK | wx.ICON_INFORMATION)
        dlg.ShowModal()
        dlg.Destroy()