This video gives basic information on Using the FILEQUERY "Query File or Folder" instruction in the Do-more Designer software. It presents information that is commonly missed by users. This WILL NOT be a complete tutorial for the instruction but rather a supplement to the help file and customer experience.
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This instruction is used for 3 main functions: First would be to check for the existence of a particular file. This is done by Placing your file or folder name here and not checking any of these. If you get a success then it exists on that file system. Second would be to gather information on the file. This is done by checking 1 or more of these 4 characteristics. The third function would be iteration. This function can gather any or all characteristics of the files or folders, you name here. There is an example of this process in the help topic on this instruction. This instruction can be used in Task or Program but cannot be used in Subroutines or Interrupt service routines. There is a utility program called Browse PLC File Systems to manage the contents of any file system. This can be found, while the designer software is connected to the PLC, and selecting PLC-> Browse PLC. File system.