Memory Location

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1

Hi everyone.

Greetings!

I am using fileio library to save event logs, If I create device with path C:\ where the files will be stored and can I check the allocated memory space from SDM tool?

Thanks and regards

2

@ashamdeep.saini I wouldn’t recommend saving data to the system partition, instead use the user partition which by default should always be created.

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As your file device, create USER under USER_PATH, if it doesn’t exist already.

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USER_PATH is a keyword that automatically points to the user partition (F:)

You can see the user partition status in SDM

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3

Hi Marcel,

Thanks for the valuable suggestion.
Initially The Path Was USER_PATH, but with that i was getting an error that 20700 Invalid path. Later I Enabled FTP Server then I realiszed that only C:\ Partition existed so I started using that.

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Perhaps, I am doing something wrong.
Please Guide me. I am Using Controller x20cp0483.
Thanks and regards.

4

Asham,

Here is my configuration for the user partition, which is accessible via FTPS. The configuration will restrict the access to only USER partition. You might want to use it as a reference in your project.

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5

Hi,

I would avoid writing logs with the FileIo if possible.
It is very likely that a lot of write accesses are necessary for the constant updating of the time stamps.

This increases the risk of a powerfail during writing (machine is switched off) and you either destroy the entire file or even the partition.

An alternative could be using library ArEventLog to write into a user logbook. There are some wrappers listed here which make using it more comfortable (Section Tracing and logging):

6

Add on Question, is there any documentation which can clarify that Which letter points to which partition? e.g. (C:\ points to system memory and F:\ points to user memory).

Thanks and regards

7

Usually C:\ determines the first partition (like on your windows-pc)
On a Safe module system it’s 3 partitions reserved (C:\ being System, leaving D:\ and E:\ for the Data). When C:, D:\ and E:\ are already in use → F:\ is the next one to be available thus being the USER partition :slight_smile: