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co🗁e: (XML) File Handling ^{co📁e: XML File Handling home (WikiPage)}
Project Members: TimvHaliazzz (admin)hermsen (admin)i-campbell (admin) co🗁e: (XML) File Handling File handling made easy Introduction | Usecase | Download | Acknowledgements Introduction A simple yet flexible library to enable easy file control and parse / compose XML data in CODESYS based PLC's via the following function blocks; Usecase Function Block (Class) Usecase FB_Filecontrol Provides the user a generic and easy way to open, close, read, write files on disk FB_StreamBuffer Provides the user a generic and easy way to compose file contents, this enables you to build your own file content parser quickly FB_XmlControl Provides a complete solution to read, write, parse and compose XML files. File Control Provides generic file control manager in following manner: Action Task Open Opens a file on disk (or create and open) Close Close a file on disk Read Read contents into a buffer for further handling Write Write buffer contents to file on disc SetPos Sets the file position pointer on disk to an offset, so you can read or write with an offset Delete Deletes the file from disk Important: Every file on disk needs to implement a seperate File Control manager The generic file control manager can easily be expanded with tasks like returning the full path of your file or returning the file size on disk. For sake of simplicity these methods are not implemented. Stream Buffer Enables the user to compose various types of file contents, via ASCII. The buffersize is allocated on initialization and has a user-configurable size. This FB forms a basis for any file format on disk like json, csv, etc, etc. XML parsing Provides easy xml-parsing and composing. Parsing and composing depends on several factors but mainly the available memory in the PLC system; Method pro's con's Large Buffer fast parsing, easy to implement, large memory footprint, suited for larger controllers can only handles files which fit entirely into the memory buffer Tiny Buffer fast parsing, easy to implement, tiny memory footprint, suited for micro embedded controllers can handle any file size on disk Examples for large and tiny memory footprint parsing methods are included Download Downloads hosted on github; https://github.com/HAHermsen/co5e-XML-File-Handling Acknowledgements Basic idea and coding: H.A. Hermsen Tiny memory footprint XML parsing: TimvH Bugfixes, testing: i-campbell and Aliazzz. https://www.linkedin.com/in/hahermsen Project Members: TimvHaliazzz (admin)hermsen (admin)i-campbell (admin)
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Post by apurv on Cannot pass array of constant size to a function as a reference ^{CODESYS Forge talk (Post)}
I have a Array of constant size defined like this Var Constant MAX_SIZE :UINT := 10; End_var VAR array : ARRAY[0..MAX_SIZE] OF INT; END_VAR Now I want to pass this array to a function by reference, Function fun : INT VAR_IN_OUT CONSTANT MAX_SIZE : UINT; END_VAR VAR_INPUT array : REFERENCE TO ARRAY[0..MAX_SIZE] OF INT; END_VAR but when I run this it gives strange Errors Error : Cannot Convert type 'ARRAY [0..MAX_SIZE] OF INT' to type 'ARRAY[0..MAX_SIZE] OF INT'
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