tests/wxGlade/plc.xml
author Andrey Skvortsov <andrej.skvortzov@gmail.com>
Fri, 10 Aug 2018 17:45:33 +0300
changeset 2278 a3ac46366b86
parent 1690 cfac9d1c3571
permissions -rw-r--r--
Dirty fix for error '_object_has_no_attribute_'getSlave' in EtherCAT extension

traceback:
File "/home/developer/WorkData/PLC/beremiz/beremiz/IDEFrame.py", line 1433, in OnPouSelectedChanged
window.RefreshView()
File "/home/developer/WorkData/PLC/beremiz/beremiz/etherlab/ConfigEditor.py", line 837, in RefreshView
self.RefreshProcessVariables()
File "/home/developer/WorkData/PLC/beremiz/beremiz/etherlab/ConfigEditor.py", line 886, in RefreshProcessVariables
slaves = self.Controler.GetSlaves(**self.CurrentNodesFilter)
File "/home/developer/WorkData/PLC/beremiz/beremiz/etherlab/EthercatMaster.py", line 341, in GetSlaves
for slave in self.Config.getConfig().getSlave():
<type 'exceptions.AttributeError'>:_'lxml.etree._Element'_object_has_no_attribute_'getSlave'

Steps to reproduce problem:

- Add new EtherCAT master
- Add new EthercatNode to the master
- double click on


this is looks like dirty hack to fix strange problem with initial[0]
changing its type after returning from _init_ method to lxml.etree._Element
As a result all methods generated by class factory are lost.

For example, in function initMethod initial[0].__class__ points to
xmlclass.xmlclass.Config. After map(self.append, initial)
self.Config.__class__ is 'xmlclass.xmlclass.Config' as well.
But after returning from initMethod (_init) in CreateElement
self.Config.__class__ has changed to lxml.etree._Element.


I've noticed similar behavior if copy/deepcopy is used for any child
of etree.ElementBase. See simple example below.
[-------------------------------------------------------------]
#!/usr/bin/python

from __future__ import print_function
from lxml import etree
import copy

class DefaultElementClass(etree.ElementBase):
def getLocalTag(self):
return etree.QName(self.tag).localname


def printInformation(x):
print(x, x.__class__, "getLocalTag" in dir(x))


a = DefaultElementClass()
printInformation(a)

#
printInformation(copy.copy(a))
printInformation(copy.deepcopy(a))
[-------------------------------------------------------------]
<?xml version='1.0' encoding='utf-8'?>
<project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://www.plcopen.org/xml/tc6_0201" xmlns:xhtml="http://www.w3.org/1999/xhtml" xsi:schemaLocation="http://www.plcopen.org/xml/tc6_0201">
  <fileHeader companyName="beremiz" productName="Beremiz" productVersion="0.0" creationDateTime="2008-12-14T16:21:19"/>
  <contentHeader name="Beremiz wxHMI test" modificationDateTime="2017-06-05T14:01:40">
    <coordinateInfo>
      <pageSize x="1024" y="1024"/>
      <fbd>
        <scaling x="5" y="5"/>
      </fbd>
      <ld>
        <scaling x="5" y="5"/>
      </ld>
      <sfc>
        <scaling x="5" y="5"/>
      </sfc>
    </coordinateInfo>
  </contentHeader>
  <types>
    <dataTypes/>
    <pous>
      <pou name="main_pytest" pouType="program">
        <interface>
          <localVars>
            <variable name="getCheckBoxState">
              <type>
                <derived name="python_poll"/>
              </type>
            </variable>
            <variable name="counter">
              <type>
                <INT/>
              </type>
            </variable>
            <variable name="setSpinCtrlValue">
              <type>
                <derived name="python_poll"/>
              </type>
            </variable>
          </localVars>
        </interface>
        <body>
          <FBD>
            <block localId="24" width="125" height="90" typeName="python_poll" instanceName="getCheckBoxState" executionOrderId="0">
              <position x="480" y="215"/>
              <inputVariables>
                <variable formalParameter="TRIG">
                  <connectionPointIn>
                    <relPosition x="0" y="35"/>
                    <connection refLocalId="25">
                      <position x="480" y="250"/>
                      <position x="420" y="250"/>
                    </connection>
                  </connectionPointIn>
                </variable>
                <variable formalParameter="CODE">
                  <connectionPointIn>
                    <relPosition x="0" y="70"/>
                    <connection refLocalId="26">
                      <position x="480" y="285"/>
                      <position x="420" y="285"/>
                    </connection>
                  </connectionPointIn>
                </variable>
              </inputVariables>
              <inOutVariables/>
              <outputVariables>
                <variable formalParameter="ACK">
                  <connectionPointOut>
                    <relPosition x="125" y="35"/>
                  </connectionPointOut>
                </variable>
                <variable formalParameter="RESULT">
                  <connectionPointOut>
                    <relPosition x="125" y="70"/>
                  </connectionPointOut>
                </variable>
              </outputVariables>
            </block>
            <inVariable localId="25" height="30" width="100" executionOrderId="0" negated="false">
              <position x="320" y="235"/>
              <connectionPointOut>
                <relPosition x="100" y="15"/>
              </connectionPointOut>
              <expression>BOOL#TRUE</expression>
            </inVariable>
            <inVariable localId="26" height="30" width="400" executionOrderId="0" negated="false">
              <position x="20" y="270"/>
              <connectionPointOut>
                <relPosition x="400" y="15"/>
              </connectionPointOut>
              <expression>'int(HMIFrame.checkbox_1.GetValue())'</expression>
            </inVariable>
            <inVariable localId="27" height="30" width="40" executionOrderId="0" negated="false">
              <position x="535" y="505"/>
              <connectionPointOut>
                <relPosition x="40" y="15"/>
              </connectionPointOut>
              <expression>')'</expression>
            </inVariable>
            <inVariable localId="28" height="30" width="330" executionOrderId="0" negated="false">
              <position x="150" y="415"/>
              <connectionPointOut>
                <relPosition x="330" y="15"/>
              </connectionPointOut>
              <expression>'HMIFrame.spin_ctrl_1.SetValue('</expression>
            </inVariable>
            <block localId="30" width="145" height="85" typeName="STRING_TO_INT" executionOrderId="0">
              <position x="670" y="215"/>
              <inputVariables>
                <variable formalParameter="EN">
                  <connectionPointIn>
                    <relPosition x="0" y="35"/>
                    <connection refLocalId="24" formalParameter="ACK">
                      <position x="670" y="250"/>
                      <position x="605" y="250"/>
                    </connection>
                  </connectionPointIn>
                </variable>
                <variable formalParameter="IN">
                  <connectionPointIn>
                    <relPosition x="0" y="70"/>
                    <connection refLocalId="24" formalParameter="RESULT">
                      <position x="670" y="285"/>
                      <position x="605" y="285"/>
                    </connection>
                  </connectionPointIn>
                </variable>
              </inputVariables>
              <inOutVariables/>
              <outputVariables>
                <variable formalParameter="ENO">
                  <connectionPointOut>
                    <relPosition x="145" y="35"/>
                  </connectionPointOut>
                </variable>
                <variable formalParameter="OUT">
                  <connectionPointOut>
                    <relPosition x="145" y="70"/>
                  </connectionPointOut>
                </variable>
              </outputVariables>
            </block>
            <block localId="32" width="80" height="80" typeName="ADD" executionOrderId="0">
              <position x="135" y="450"/>
              <inputVariables>
                <variable formalParameter="EN">
                  <connectionPointIn>
                    <relPosition x="0" y="30"/>
                    <connection refLocalId="38" formalParameter="OUT">
                      <position x="135" y="480"/>
                      <position x="100" y="480"/>
                      <position x="100" y="330"/>
                      <position x="1140" y="330"/>
                      <position x="1140" y="250"/>
                      <position x="1130" y="250"/>
                    </connection>
                  </connectionPointIn>
                </variable>
                <variable formalParameter="IN1">
                  <connectionPointIn>
                    <relPosition x="0" y="50"/>
                    <connection refLocalId="39">
                      <position x="135" y="500"/>
                      <position x="90" y="500"/>
                    </connection>
                  </connectionPointIn>
                </variable>
                <variable formalParameter="IN2">
                  <connectionPointIn>
                    <relPosition x="0" y="70"/>
                    <connection refLocalId="33">
                      <position x="135" y="520"/>
                      <position x="125" y="520"/>
                      <position x="125" y="540"/>
                      <position x="340" y="540"/>
                      <position x="340" y="500"/>
                      <position x="320" y="500"/>
                    </connection>
                  </connectionPointIn>
                </variable>
              </inputVariables>
              <inOutVariables/>
              <outputVariables>
                <variable formalParameter="ENO">
                  <connectionPointOut>
                    <relPosition x="80" y="30"/>
                  </connectionPointOut>
                </variable>
                <variable formalParameter="OUT">
                  <connectionPointOut>
                    <relPosition x="80" y="50"/>
                  </connectionPointOut>
                </variable>
              </outputVariables>
            </block>
            <block localId="34" width="80" height="100" typeName="CONCAT" executionOrderId="0">
              <position x="605" y="430"/>
              <inputVariables>
                <variable formalParameter="EN">
                  <connectionPointIn>
                    <relPosition x="0" y="30"/>
                    <connection refLocalId="35" formalParameter="ENO">
                      <position x="605" y="460"/>
                      <position x="520" y="460"/>
                      <position x="520" y="480"/>
                      <position x="500" y="480"/>
                    </connection>
                  </connectionPointIn>
                </variable>
                <variable formalParameter="IN1">
                  <connectionPointIn>
                    <relPosition x="0" y="50"/>
                    <connection refLocalId="28">
                      <position x="605" y="480"/>
                      <position x="562" y="480"/>
                      <position x="562" y="430"/>
                      <position x="480" y="430"/>
                    </connection>
                  </connectionPointIn>
                </variable>
                <variable formalParameter="IN2">
                  <connectionPointIn>
                    <relPosition x="0" y="70"/>
                    <connection refLocalId="35" formalParameter="OUT">
                      <position x="605" y="500"/>
                      <position x="500" y="500"/>
                    </connection>
                  </connectionPointIn>
                </variable>
                <variable formalParameter="IN3">
                  <connectionPointIn>
                    <relPosition x="0" y="90"/>
                    <connection refLocalId="27">
                      <position x="605" y="520"/>
                      <position x="575" y="520"/>
                    </connection>
                  </connectionPointIn>
                </variable>
              </inputVariables>
              <inOutVariables/>
              <outputVariables>
                <variable formalParameter="ENO">
                  <connectionPointOut>
                    <relPosition x="80" y="30"/>
                  </connectionPointOut>
                </variable>
                <variable formalParameter="OUT">
                  <connectionPointOut>
                    <relPosition x="80" y="50"/>
                  </connectionPointOut>
                </variable>
              </outputVariables>
            </block>
            <inOutVariable localId="33" height="35" width="85" executionOrderId="0" negatedOut="false" negatedIn="false">
              <position x="235" y="485"/>
              <connectionPointIn>
                <relPosition x="0" y="15"/>
                <connection refLocalId="32" formalParameter="OUT">
                  <position x="235" y="500"/>
                  <position x="215" y="500"/>
                </connection>
              </connectionPointIn>
              <connectionPointOut>
                <relPosition x="85" y="15"/>
              </connectionPointOut>
              <expression>counter</expression>
            </inOutVariable>
            <block localId="35" width="145" height="60" typeName="INT_TO_STRING" executionOrderId="0">
              <position x="355" y="450"/>
              <inputVariables>
                <variable formalParameter="EN">
                  <connectionPointIn>
                    <relPosition x="0" y="30"/>
                    <connection refLocalId="32" formalParameter="ENO">
                      <position x="355" y="480"/>
                      <position x="215" y="480"/>
                    </connection>
                  </connectionPointIn>
                </variable>
                <variable formalParameter="IN">
                  <connectionPointIn>
                    <relPosition x="0" y="50"/>
                    <connection refLocalId="33">
                      <position x="355" y="500"/>
                      <position x="320" y="500"/>
                    </connection>
                  </connectionPointIn>
                </variable>
              </inputVariables>
              <inOutVariables/>
              <outputVariables>
                <variable formalParameter="ENO">
                  <connectionPointOut>
                    <relPosition x="145" y="30"/>
                  </connectionPointOut>
                </variable>
                <variable formalParameter="OUT">
                  <connectionPointOut>
                    <relPosition x="145" y="50"/>
                  </connectionPointOut>
                </variable>
              </outputVariables>
            </block>
            <block localId="36" width="125" height="90" typeName="python_poll" instanceName="setSpinCtrlValue" executionOrderId="0">
              <position x="735" y="425"/>
              <inputVariables>
                <variable formalParameter="TRIG">
                  <connectionPointIn>
                    <relPosition x="0" y="35"/>
                    <connection refLocalId="34" formalParameter="ENO">
                      <position x="735" y="460"/>
                      <position x="685" y="460"/>
                    </connection>
                  </connectionPointIn>
                </variable>
                <variable formalParameter="CODE">
                  <connectionPointIn>
                    <relPosition x="0" y="70"/>
                    <connection refLocalId="34" formalParameter="OUT">
                      <position x="735" y="495"/>
                      <position x="715" y="495"/>
                      <position x="715" y="480"/>
                      <position x="685" y="480"/>
                    </connection>
                  </connectionPointIn>
                </variable>
              </inputVariables>
              <inOutVariables/>
              <outputVariables>
                <variable formalParameter="ACK">
                  <connectionPointOut>
                    <relPosition x="125" y="35"/>
                  </connectionPointOut>
                </variable>
                <variable formalParameter="RESULT">
                  <connectionPointOut>
                    <relPosition x="125" y="70"/>
                  </connectionPointOut>
                </variable>
              </outputVariables>
            </block>
            <block localId="37" width="125" height="45" typeName="INT_TO_BOOL" executionOrderId="0">
              <position x="870" y="255"/>
              <inputVariables>
                <variable formalParameter="IN">
                  <connectionPointIn>
                    <relPosition x="0" y="30"/>
                    <connection refLocalId="30" formalParameter="OUT">
                      <position x="870" y="285"/>
                      <position x="815" y="285"/>
                    </connection>
                  </connectionPointIn>
                </variable>
              </inputVariables>
              <inOutVariables/>
              <outputVariables>
                <variable formalParameter="OUT">
                  <connectionPointOut>
                    <relPosition x="125" y="30"/>
                  </connectionPointOut>
                </variable>
              </outputVariables>
            </block>
            <block localId="38" width="80" height="95" typeName="AND" executionOrderId="0">
              <position x="1050" y="210"/>
              <inputVariables>
                <variable formalParameter="IN1">
                  <connectionPointIn>
                    <relPosition x="0" y="40"/>
                    <connection refLocalId="30" formalParameter="ENO">
                      <position x="1050" y="250"/>
                      <position x="815" y="250"/>
                    </connection>
                  </connectionPointIn>
                </variable>
                <variable formalParameter="IN2">
                  <connectionPointIn>
                    <relPosition x="0" y="75"/>
                    <connection refLocalId="37" formalParameter="OUT">
                      <position x="1050" y="285"/>
                      <position x="995" y="285"/>
                    </connection>
                  </connectionPointIn>
                </variable>
              </inputVariables>
              <inOutVariables/>
              <outputVariables>
                <variable formalParameter="OUT">
                  <connectionPointOut>
                    <relPosition x="80" y="40"/>
                  </connectionPointOut>
                </variable>
              </outputVariables>
            </block>
            <inVariable localId="39" height="30" width="60" executionOrderId="0" negated="false">
              <position x="30" y="485"/>
              <connectionPointOut>
                <relPosition x="60" y="15"/>
              </connectionPointOut>
              <expression>INT#1</expression>
            </inVariable>
            <comment localId="101" height="115" width="680">
              <position x="10" y="30"/>
              <content>
                <xhtml:p><![CDATA[This example shows how IEC program in PLC can interact with UI created using wxGlade. 

"WxGlade GUI" is extension to build user interface for PLC using wxGlade.
To edit user interface click on "WxGlade" icon in extension settings.]]></xhtml:p>
              </content>
            </comment>
          </FBD>
        </body>
      </pou>
    </pous>
  </types>
  <instances>
    <configurations>
      <configuration name="config">
        <resource name="res_pytest">
          <task name="pytest_task" interval="t#100ms" priority="0"/>
          <pouInstance name="pytest_instance" typeName="main_pytest"/>
        </resource>
      </configuration>
    </configurations>
  </instances>
</project>