Saving a GVL to a file ^{CODESYS Forge talk (Thread)}
Saving a GVL to a file
Last updated: 2019-12-20

Issue with CAA File Write FB throwing error code 1 ^{CODESYS Forge talk (Thread)}
Issue with CAA File Write FB throwing error code 1
Last updated: 2020-06-08

XML file XSL transformation SFC import into yEd ^{CODESYS Forge talk (Thread)}
XML file XSL transformation SFC import into yEd
Last updated: 2022-06-08

Writing data to a file with Wago CP-57 ^{CODESYS Forge talk (Thread)}
Writing data to a file with Wago CP-57
Last updated: 2014-04-04

Use PLCHandler to download another CODESYS project file ^{CODESYS Forge talk (Thread)}
Use PLCHandler to download another CODESYS project file
Last updated: 2020-11-02

Accessing an External File from CoDeSys ^{CODESYS Forge talk (Thread)}
Accessing an External File from CoDeSys
Last updated: 2007-06-21

how to download frequency inverter parameters via a file ^{CODESYS Forge talk (Thread)}
how to download frequency inverter parameters via a file
Last updated: 2018-05-08

Import of native file objects with folder ^{CODESYS Forge talk (Thread)}
Import of native file objects with folder
Last updated: 2018-09-11

Saving a file to USB stick ^{CODESYS Forge talk (Thread)}
Saving a file to USB stick
Last updated: 2009-03-03

How to Save a csv file on SD Card ^{CODESYS Forge talk (Thread)}
How to Save a csv file on SD Card
Last updated: 2016-08-26

SysDirRead - miss 1 file in the folder list research ^{CODESYS Forge talk (Thread)}
SysDirRead - miss 1 file in the folder list research
Last updated: 2023-12-13

How to upload application file to remote controller (offline) ? ^{CODESYS Forge talk (Thread)}
How to upload application file to remote controller (offline) ?
Last updated: 2024-02-16

when going online, stuck on "Syncing file "visuelemsdatetime.tl_datetime.txt" ^{CODESYS Forge talk (Thread)}
when going online, stuck on "Syncing file "visuelemsdatetime.tl_datetime.txt"
Last updated: 2024-03-05

JSON Utilities - JSON file written with invalid structure ^{CODESYS Forge talk (Thread)}
JSON Utilities - JSON file written with invalid structure
Last updated: 2024-03-06

File transfer via visu and codesys automation server ^{CODESYS Forge talk (Thread)}
File transfer via visu and codesys automation server
Last updated: 2024-03-07

Send file from codesys to...... ftp, cloud, etc ^{CODESYS Forge talk (Thread)}
Send file from codesys to...... ftp, cloud, etc
Last updated: 2024-03-12

How to open an .EXE file window from Codesys ^{CODESYS Forge talk (Thread)}
How to open an .EXE file window from Codesys
Last updated: 2024-04-18

Compile problem - can't get .bin or .h86 file ^{CODESYS Forge talk (Thread)}
Compile problem - can't get .bin or .h86 file
Last updated: 2024-09-12

Post by pierre on difference between stub file and source file in scriptengine ^{CODESYS Forge talk (Post)}
Last updated: 2024-09-23

Script python for write in a file Project information ^{CODESYS Forge talk (Thread)}
Script python for write in a file Project information
Last updated: 2025-04-28

Script python for write in a file Project information ^{CODESYS Forge talk (Thread)}
Script python for write in a file Project information
Last updated: 2025-04-28

Codesys 3.5.21 fails to copy file to USB ^{CODESYS Forge talk (Thread)}
Codesys 3.5.21 fails to copy file to USB
Last updated: 2025-05-27

Frustration-Fueled Feedback on Project File Management and Git Integration ^{CODESYS Forge talk (Thread)}
Frustration-Fueled Feedback on Project File Management and Git Integration
Last updated: 2025-06-27

Saving "Input/output names" in a DCF file ^{CODESYS Forge talk (Thread)}
Saving "Input/output names" in a DCF file
Last updated: 2025-07-02

Post by atone on CAA File Handling: "Read only" error ^{CODESYS Forge talk (Post)}
In case of error while opening the file to read you assume that the file doesn't exist and try to create one. But it could be that the SD card is not ready yet or simply not there. I would try to check first if the SD card is there and accessible. Otherwise with FILE.Create you could end up creating a new directory that is not mapped to the SD card. This would explain the errors even after a reboot, though it doesn't explain the READ_ONLY_CAA error I guess? I would use FILE.DirOpen and FILE.DirList to check if the SD card is there and ready.
Last updated: 2025-03-20

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