tests/projects/wamp/plc.xml
author Edouard Tisserant <edouard@beremiz.fr>
Thu, 05 Dec 2024 13:56:59 +0100
changeset 4060 d2f5eb3c7d6e
parent 3416 53c66c4aefa3
permissions -rw-r--r--
py_ext: fix CSV Writer

fix POU logic :
- SAVE is a BOOL
- invocation of py_eval on rising edge of SAVE
- remove save python argument

fix python:
- use no encoding for file open (python2)
- re-use detected dialect if any
- use no "rt+" and truncate since no need to re-sniff dialect for output file
- return "OK" instead of "#SUCCESS", preventing POU logic to ACK result
- support creating new line if writing just after last line
- support appending data on short rows

fix example:
- use a HMI:Button to trigger CSV write instead of HMI:Input +1
- reload CSVs on on each new CSV opened in file browser
- add display of CSV write output
<?xml version='1.0' encoding='utf-8'?>
<project xmlns:ns1="http://www.plcopen.org/xml/tc6_0201" xmlns:xhtml="http://www.w3.org/1999/xhtml" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns="http://www.plcopen.org/xml/tc6_0201">
  <fileHeader companyName="Beremiz" productName="Beremiz" productVersion="1" creationDateTime="2015-02-05T11:44:55" contentDescription=" &#10;&#10;"/>
  <contentHeader name="WAMPTest" modificationDateTime="2018-08-27T11:11:30">
    <coordinateInfo>
      <fbd>
        <scaling x="0" y="0"/>
      </fbd>
      <ld>
        <scaling x="0" y="0"/>
      </ld>
      <sfc>
        <scaling x="0" y="0"/>
      </sfc>
    </coordinateInfo>
  </contentHeader>
  <types>
    <dataTypes/>
    <pous>
      <pou name="program0" pouType="program">
        <interface>
          <localVars>
            <variable name="LocalVar0">
              <type>
                <DINT/>
              </type>
              <initialValue>
                <simpleValue value="1"/>
              </initialValue>
            </variable>
          </localVars>
          <externalVars>
            <variable name="PyVar0">
              <type>
                <DINT/>
              </type>
            </variable>
            <variable name="PyVar1">
              <type>
                <DINT/>
              </type>
            </variable>
          </externalVars>
        </interface>
        <body>
          <FBD>
            <inVariable localId="1" executionOrderId="0" height="30" width="55" negated="false">
              <position x="57" y="540"/>
              <connectionPointOut>
                <relPosition x="55" y="15"/>
              </connectionPointOut>
              <expression>PyVar0</expression>
            </inVariable>
            <block localId="3" typeName="ADD" executionOrderId="0" height="60" width="67">
              <position x="168" y="525"/>
              <inputVariables>
                <variable formalParameter="IN1">
                  <connectionPointIn>
                    <relPosition x="0" y="30"/>
                    <connection refLocalId="1">
                      <position x="168" y="555"/>
                      <position x="112" y="555"/>
                    </connection>
                  </connectionPointIn>
                </variable>
                <variable formalParameter="IN2">
                  <connectionPointIn>
                    <relPosition x="0" y="50"/>
                    <connection refLocalId="4">
                      <position x="168" y="575"/>
                      <position x="151" y="575"/>
                      <position x="151" y="595"/>
                      <position x="112" y="595"/>
                    </connection>
                  </connectionPointIn>
                </variable>
              </inputVariables>
              <inOutVariables/>
              <outputVariables>
                <variable formalParameter="OUT">
                  <connectionPointOut>
                    <relPosition x="67" y="30"/>
                  </connectionPointOut>
                </variable>
              </outputVariables>
            </block>
            <inVariable localId="4" executionOrderId="0" height="30" width="73" negated="false">
              <position x="39" y="580"/>
              <connectionPointOut>
                <relPosition x="73" y="15"/>
              </connectionPointOut>
              <expression>LocalVar0</expression>
            </inVariable>
            <comment localId="5" height="459" width="788">
              <position x="23" y="10"/>
              <content>
                <xhtml:p><![CDATA[Communication between Beremiz and PLC runtime isn't bound to any specific protocol and could be extended by writing corresponding connector (see 'connectors' directory).
Beremiz reference runtime implementation supports PYRO and WAMP protocols.
This example shows how to use Web Application Messaging Protocol (WAMP).

WAMP can be used to build distributed systems out of application components which are loosely coupled and communicate in real-time. No direct connection between IDE and PLC are necessary.

WAMP is in a process to be published as official IETF standard. Draft specification is already available on IETF website.
	
To use this example you need WAMP router and standalone running Beremiz_service.
1. See README file in project's directory with detailed instructions for
setup Crossbar.io, router for open Web Application Messaging Protocol (WAMP).
2. Run crossbar
3. Create service working directory and copy wampconf.json from project_files to created directory
4. Run Beremiz_service:
./Beremiz_service.py -x 0 <working directory>
]]></xhtml:p>
              </content>
            </comment>
            <inOutVariable localId="2" executionOrderId="0" height="30" width="55" negatedOut="false" negatedIn="false">
              <position x="270" y="540"/>
              <connectionPointIn>
                <relPosition x="0" y="15"/>
                <connection refLocalId="3" formalParameter="OUT">
                  <position x="270" y="555"/>
                  <position x="235" y="555"/>
                </connection>
              </connectionPointIn>
              <connectionPointOut>
                <relPosition x="55" y="15"/>
              </connectionPointOut>
              <expression>PyVar1</expression>
            </inOutVariable>
            <outVariable localId="6" executionOrderId="0" height="30" width="55" negated="false">
              <position x="362" y="540"/>
              <connectionPointIn>
                <relPosition x="0" y="15"/>
                <connection refLocalId="2">
                  <position x="362" y="555"/>
                  <position x="325" y="555"/>
                </connection>
              </connectionPointIn>
              <expression>PyVar0</expression>
            </outVariable>
          </FBD>
        </body>
      </pou>
    </pous>
  </types>
  <instances>
    <configurations>
      <configuration name="config">
        <resource name="resource1">
          <task name="Task0" priority="0" interval="T#100ms">
            <pouInstance name="Instance0" typeName="program0"/>
          </task>
        </resource>
      </configuration>
    </configurations>
  </instances>
</project>