ADC Community_02 (Automationdirect.com) asked a question.

Edited June 8, 2026 at 7:00 PM
Productivity PROtips: Using File Systems Effectively

FRX • FWX • FCX | Px-622, P1-412, P1-M622, and newer CPUs

 

Overview

File Systems, available on Px-622, P1-412, P1-M622 series Productivity CPUs, unlock the ability to read and write CSV data directly from ladder logic using a portable memory device — either a microSD card (uSD) or a USB drive. Three dedicated instructions handle all file interactions:

imageTogether, these instructions enable a wide range of practical applications: logging production data to a CSV file, loading recipe parameters at startup, archiving shift reports to removable media, and automatically managing file storage to prevent overflow.

 

Note: File Systems are only supported on Px-622, P1-412, P1-M622, and newer CPUs. Only one removable device may be configured per CPU.

 

Due to topic length please see attached .pdf for further information and details on this topic.

  • 5 answers
  • 91 views

  • ADC Community_02 (Automationdirect.com)

    Productivity PROtips: Using File Systems Effectively

    Selected as Best

  • ADC Community_02 (Automationdirect.com)

    Productivity PROtips: Using File Systems Effectively

    Selected as Best

  • PouchesInc (Customer)

    Any chance we will get the ability to use these file commands and instead of specifying a directly attached storage device, instead specify an IP address/mount point So that CSV files can be written to or read directly to a server on the network?

    • ADC Community_02 (Automationdirect.com)

      Thank you for bringing this up! We're happy to confirm that this improvement is on our roadmap and is currently in development. While we don't have a specific release date to share just yet, we're actively working on it and will announce updates as soon as they're available. We appreciate your patience and continued feedback — it helps us prioritize what matters most to our users!

      • z28z34man (Customer)

        That is awesome. It will simplify some project I have that are using python to parse some CSV files and then sending the data to a PLC with pymodbus.

      • z28z34man (Customer)

        In the FCX instruction it would be nice to be able to check the metadata for last modified time. I would use this instruction to see if an outside source has updated the file and only read the file when an outside source has updated the file.

 

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