plcopen 1.0.1

A utility package for PLCopenXML parsing/generation based on xsdata (https://xsdata.readthedocs.io/)

Python PLCopenXML

A Python class model for PLCopen XML.

The class model has been generated with xsdata. Xsdata can also be used to parse/serialize PLCopen XML files to/from the class model.

To be able to parse PLCopen XML files generated by Codesys, the class model also contains some manually created classes for Codesys-specific stuff.

Usage

from plcopen import *

# parsing an existing PLCopen XML file
with open(path_to_plcopen_xml_file, 'rb') as plcopen_xml_file:
    content = plcopen_xml_file.read()
    parser = XmlParser(context=XmlContext())
    return parser.from_bytes(content, Project)

# working on the parsed project
first_pou = plcopen_project.types.pous[0]

# serializing the project
with open(path_to_plcopen_xml_file, 'w') as plcopen_xml_file:
    serializer = XmlSerializer(context=context)
    serializer.config.pretty_print = True

    content = serializer.render(project)
    serializer.write(content)

Note: More information about parsing and serializing can be found in the xsdata docs.