tests/svgui/plc.xml
author Andrey Skvortsov <andrej.skvortzov@gmail.com>
Fri, 10 Aug 2018 17:45:33 +0300
changeset 2278 a3ac46366b86
parent 1547 33e03a4b3075
child 2296 a2ab363f9e90
permissions -rwxr-xr-x
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 SVGUI Test" modificationDateTime="2016-10-20T12:38:31">
    <coordinateInfo>
      <pageSize x="1024" y="1024"/>
      <fbd>
        <scaling x="0" y="0"/>
      </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="counter">
              <type>
                <INT/>
              </type>
            </variable>
            <variable name="Start_Stop">
              <type>
                <derived name="Button"/>
              </type>
            </variable>
            <variable name="Counter_TextCtrl">
              <type>
                <derived name="TextCtrl"/>
              </type>
            </variable>
            <variable name="State_LedCtrl">
              <type>
                <derived name="Led"/>
              </type>
            </variable>
          </localVars>
        </interface>
        <body>
          <FBD>
            <block localId="32" width="80" height="110" typeName="ADD" executionOrderId="0">
              <position x="649" y="241"/>
              <inputVariables>
                <variable formalParameter="EN">
                  <connectionPointIn>
                    <relPosition x="0" y="35"/>
                    <connection refLocalId="5">
                      <position x="649" y="276"/>
                      <position x="594" y="276"/>
                    </connection>
                  </connectionPointIn>
                </variable>
                <variable formalParameter="IN1">
                  <connectionPointIn>
                    <relPosition x="0" y="65"/>
                    <connection refLocalId="100" formalParameter="OUT">
                      <position x="649" y="306"/>
                      <position x="474" y="306"/>
                    </connection>
                  </connectionPointIn>
                </variable>
                <variable formalParameter="IN2">
                  <connectionPointIn>
                    <relPosition x="0" y="95"/>
                    <connection refLocalId="33">
                      <position x="649" y="336"/>
                      <position x="629" y="336"/>
                      <position x="629" y="374"/>
                      <position x="854" y="374"/>
                      <position x="854" y="306"/>
                      <position x="839" y="306"/>
                    </connection>
                  </connectionPointIn>
                </variable>
              </inputVariables>
              <inOutVariables/>
              <outputVariables>
                <variable formalParameter="ENO">
                  <connectionPointOut>
                    <relPosition x="80" y="35"/>
                  </connectionPointOut>
                </variable>
                <variable formalParameter="OUT">
                  <connectionPointOut>
                    <relPosition x="80" y="65"/>
                  </connectionPointOut>
                </variable>
              </outputVariables>
            </block>
            <inOutVariable localId="33" height="35" width="85" executionOrderId="0" negatedOut="false" negatedIn="false">
              <position x="754" y="289"/>
              <connectionPointIn>
                <relPosition x="0" y="17"/>
                <connection refLocalId="32" formalParameter="OUT">
                  <position x="754" y="306"/>
                  <position x="729" y="306"/>
                </connection>
              </connectionPointIn>
              <connectionPointOut>
                <relPosition x="85" y="17"/>
              </connectionPointOut>
              <expression>counter</expression>
            </inOutVariable>
            <inVariable localId="39" height="35" width="89" executionOrderId="0" negated="false">
              <position x="55" y="289"/>
              <connectionPointOut>
                <relPosition x="89" y="17"/>
              </connectionPointOut>
              <expression>BOOL#1</expression>
            </inVariable>
            <inVariable localId="41" height="30" width="120" executionOrderId="0" negated="false">
              <position x="21" y="575"/>
              <connectionPointOut>
                <relPosition x="120" y="15"/>
              </connectionPointOut>
              <expression>'stop_back'</expression>
            </inVariable>
            <inVariable localId="42" height="30" width="120" executionOrderId="0" negated="false">
              <position x="21" y="617"/>
              <connectionPointOut>
                <relPosition x="120" y="15"/>
              </connectionPointOut>
              <expression>'stop_sele'</expression>
            </inVariable>
            <inVariable localId="46" height="30" width="121" executionOrderId="0" negated="false">
              <position x="694" y="755"/>
              <connectionPointOut>
                <relPosition x="121" y="15"/>
              </connectionPointOut>
              <expression>'text_counter'</expression>
            </inVariable>
            <inVariable localId="51" height="30" width="119" executionOrderId="0" negated="false">
              <position x="692" y="568"/>
              <connectionPointOut>
                <relPosition x="119" y="15"/>
              </connectionPointOut>
              <expression>'led_stop'</expression>
            </inVariable>
            <inVariable localId="52" height="30" width="120" executionOrderId="0" negated="false">
              <position x="691" y="604"/>
              <connectionPointOut>
                <relPosition x="120" y="15"/>
              </connectionPointOut>
              <expression>'led_start'</expression>
            </inVariable>
            <block localId="83" width="145" height="60" typeName="INT_TO_STRING" executionOrderId="0">
              <position x="537" y="812"/>
              <inputVariables>
                <variable formalParameter="IN">
                  <connectionPointIn>
                    <relPosition x="0" y="40"/>
                    <connection refLocalId="4">
                      <position x="537" y="852"/>
                      <position x="504" y="852"/>
                    </connection>
                  </connectionPointIn>
                </variable>
              </inputVariables>
              <inOutVariables/>
              <outputVariables>
                <variable formalParameter="OUT">
                  <connectionPointOut>
                    <relPosition x="145" y="40"/>
                  </connectionPointOut>
                </variable>
              </outputVariables>
            </block>
            <block localId="92" width="187" height="230" typeName="Button" instanceName="Start_Stop" executionOrderId="0">
              <position x="201" y="549"/>
              <inputVariables>
                <variable formalParameter="back_id">
                  <connectionPointIn>
                    <relPosition x="0" y="41"/>
                    <connection refLocalId="41">
                      <position x="201" y="590"/>
                      <position x="141" y="590"/>
                    </connection>
                  </connectionPointIn>
                </variable>
                <variable formalParameter="sele_id">
                  <connectionPointIn>
                    <relPosition x="0" y="83"/>
                    <connection refLocalId="42">
                      <position x="201" y="632"/>
                      <position x="141" y="632"/>
                    </connection>
                  </connectionPointIn>
                </variable>
                <variable formalParameter="toggle">
                  <connectionPointIn>
                    <relPosition x="0" y="125"/>
                    <connection refLocalId="93">
                      <position x="201" y="674"/>
                      <position x="141" y="674"/>
                    </connection>
                  </connectionPointIn>
                </variable>
                <variable formalParameter="set_state">
                  <connectionPointIn>
                    <relPosition x="0" y="167"/>
                  </connectionPointIn>
                </variable>
                <variable formalParameter="state_in">
                  <connectionPointIn>
                    <relPosition x="0" y="209"/>
                  </connectionPointIn>
                </variable>
              </inputVariables>
              <inOutVariables/>
              <outputVariables>
                <variable formalParameter="state_out">
                  <connectionPointOut>
                    <relPosition x="187" y="41"/>
                  </connectionPointOut>
                </variable>
              </outputVariables>
            </block>
            <inVariable localId="93" height="30" width="120" executionOrderId="0" negated="false">
              <position x="21" y="659"/>
              <connectionPointOut>
                <relPosition x="120" y="15"/>
              </connectionPointOut>
              <expression>BOOL#1</expression>
            </inVariable>
            <block localId="94" width="100" height="145" typeName="TextCtrl" instanceName="Counter_TextCtrl" executionOrderId="0">
              <position x="876" y="730"/>
              <inputVariables>
                <variable formalParameter="back_id">
                  <connectionPointIn>
                    <relPosition x="0" y="40"/>
                    <connection refLocalId="46">
                      <position x="876" y="770"/>
                      <position x="815" y="770"/>
                    </connection>
                  </connectionPointIn>
                </variable>
                <variable formalParameter="set_text">
                  <connectionPointIn>
                    <relPosition x="0" y="81"/>
                    <connection refLocalId="3">
                      <position x="876" y="811"/>
                      <position x="815" y="811"/>
                    </connection>
                  </connectionPointIn>
                </variable>
                <variable formalParameter="text">
                  <connectionPointIn>
                    <relPosition x="0" y="122"/>
                    <connection refLocalId="83" formalParameter="OUT">
                      <position x="876" y="852"/>
                      <position x="682" y="852"/>
                    </connection>
                  </connectionPointIn>
                </variable>
              </inputVariables>
              <inOutVariables/>
              <outputVariables/>
            </block>
            <inVariable localId="1" height="30" width="88" executionOrderId="0" negated="false">
              <position x="59" y="220"/>
              <connectionPointOut>
                <relPosition x="88" y="15"/>
              </connectionPointOut>
              <expression>BOOL#1</expression>
            </inVariable>
            <block localId="95" width="100" height="130" typeName="Led" instanceName="State_LedCtrl" executionOrderId="0">
              <position x="876" y="545"/>
              <inputVariables>
                <variable formalParameter="back_id">
                  <connectionPointIn>
                    <relPosition x="0" y="38"/>
                    <connection refLocalId="51">
                      <position x="876" y="583"/>
                      <position x="811" y="583"/>
                    </connection>
                  </connectionPointIn>
                </variable>
                <variable formalParameter="sele_id">
                  <connectionPointIn>
                    <relPosition x="0" y="74"/>
                    <connection refLocalId="52">
                      <position x="876" y="619"/>
                      <position x="811" y="619"/>
                    </connection>
                  </connectionPointIn>
                </variable>
                <variable formalParameter="state_in">
                  <connectionPointIn>
                    <relPosition x="0" y="110"/>
                    <connection refLocalId="2">
                      <position x="876" y="655"/>
                      <position x="811" y="655"/>
                    </connection>
                  </connectionPointIn>
                </variable>
              </inputVariables>
              <inOutVariables/>
              <outputVariables/>
            </block>
            <block localId="96" width="80" height="65" typeName="AND" executionOrderId="0">
              <position x="200" y="182"/>
              <inputVariables>
                <variable formalParameter="IN1" negated="true">
                  <connectionPointIn>
                    <relPosition x="0" y="31"/>
                    <connection refLocalId="96" formalParameter="OUT">
                      <position x="200" y="213"/>
                      <position x="175" y="213"/>
                      <position x="175" y="167"/>
                      <position x="305" y="167"/>
                      <position x="305" y="213"/>
                      <position x="280" y="213"/>
                    </connection>
                  </connectionPointIn>
                </variable>
                <variable formalParameter="IN2">
                  <connectionPointIn>
                    <relPosition x="0" y="53"/>
                    <connection refLocalId="1">
                      <position x="200" y="235"/>
                      <position x="147" y="235"/>
                    </connection>
                  </connectionPointIn>
                </variable>
              </inputVariables>
              <inOutVariables/>
              <outputVariables>
                <variable formalParameter="OUT">
                  <connectionPointOut>
                    <relPosition x="80" y="31"/>
                  </connectionPointOut>
                </variable>
              </outputVariables>
            </block>
            <connector name="CLOCK" localId="97" height="30" width="90">
              <position x="345" y="198"/>
              <connectionPointIn>
                <relPosition x="0" y="15"/>
                <connection refLocalId="96" formalParameter="OUT">
                  <position x="345" y="213"/>
                  <position x="280" y="213"/>
                </connection>
              </connectionPointIn>
            </connector>
            <connector name="COUNT" localId="98" height="30" width="90">
              <position x="461" y="575"/>
              <connectionPointIn>
                <relPosition x="0" y="15"/>
                <connection refLocalId="92" formalParameter="state_out">
                  <position x="461" y="590"/>
                  <position x="388" y="590"/>
                </connection>
              </connectionPointIn>
            </connector>
            <continuation name="COUNT" localId="2" height="30" width="120">
              <position x="691" y="640"/>
              <connectionPointOut>
                <relPosition x="120" y="15"/>
              </connectionPointOut>
            </continuation>
            <inVariable localId="4" height="35" width="85" executionOrderId="0" negated="false">
              <position x="419" y="835"/>
              <connectionPointOut>
                <relPosition x="85" y="17"/>
              </connectionPointOut>
              <expression>counter</expression>
            </inVariable>
            <continuation name="COUNT" localId="5" height="30" width="90">
              <position x="504" y="261"/>
              <connectionPointOut>
                <relPosition x="90" y="15"/>
              </connectionPointOut>
            </continuation>
            <block localId="99" width="80" height="110" typeName="AND" executionOrderId="0">
              <position x="199" y="264"/>
              <inputVariables>
                <variable formalParameter="IN1">
                  <connectionPointIn>
                    <relPosition x="0" y="42"/>
                    <connection refLocalId="39">
                      <position x="199" y="306"/>
                      <position x="144" y="306"/>
                    </connection>
                  </connectionPointIn>
                </variable>
                <variable formalParameter="IN2">
                  <connectionPointIn>
                    <relPosition x="0" y="87"/>
                    <connection refLocalId="6">
                      <position x="199" y="351"/>
                      <position x="144" y="351"/>
                    </connection>
                  </connectionPointIn>
                </variable>
              </inputVariables>
              <inOutVariables/>
              <outputVariables>
                <variable formalParameter="OUT">
                  <connectionPointOut>
                    <relPosition x="80" y="42"/>
                  </connectionPointOut>
                </variable>
              </outputVariables>
            </block>
            <continuation name="CLOCK" localId="6" height="30" width="90">
              <position x="54" y="336"/>
              <connectionPointOut>
                <relPosition x="90" y="15"/>
              </connectionPointOut>
            </continuation>
            <block localId="100" width="125" height="45" typeName="BOOL_TO_INT" executionOrderId="0">
              <position x="349" y="274"/>
              <inputVariables>
                <variable formalParameter="IN">
                  <connectionPointIn>
                    <relPosition x="0" y="32"/>
                    <connection refLocalId="99" formalParameter="OUT">
                      <position x="349" y="306"/>
                      <position x="279" y="306"/>
                    </connection>
                  </connectionPointIn>
                </variable>
              </inputVariables>
              <inOutVariables/>
              <outputVariables>
                <variable formalParameter="OUT">
                  <connectionPointOut>
                    <relPosition x="125" y="32"/>
                  </connectionPointOut>
                </variable>
              </outputVariables>
            </block>
            <continuation name="CLOCK" localId="3" height="30" width="122">
              <position x="693" y="796"/>
              <connectionPointOut>
                <relPosition x="122" y="15"/>
              </connectionPointOut>
            </continuation>
            <comment localId="101" height="152" width="816">
              <position x="27" y="8"/>
              <content>
                <xhtml:p><![CDATA[This example shows how IEC program in PLC can interact with web interface. 

svgui is extensions to build web interface to PLC. It has *integrated* web-server. So it's NOT necessary to install Apache, lighttpd or nginx for that!!!

As the program is running in PLC, web UI will be available at http://localhost:8009/.


Web interface is build as SVG file in Inkscape. To edit SVG file click 'Inkscape' button in 0x: svgui extension. 
Inkscape is a free and open-source vector graphics editor. It's not part of Beremiz and needs to be installed separately.
]]></xhtml:p>
              </content>
            </comment>
            <comment localId="102" height="101" width="544">
              <position x="17" y="409"/>
              <content>
                <xhtml:p><![CDATA[In this example basic elements like 'Button', 'Led' and 'Text' are used. 
Back_id and sele_id inputs of these blocks are IDs  of graphic primitives in SVG file. 
This is the way how elements in SVG are bound to elements in PLC program. 
You can find out or edit these IDs in Inkscape.]]></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>