USB capacity Question

[dotmh94 (Choi Haechang)]

Hello, I’m Choi.

I’m using X20CP0484 CPU. I’m using this CPU by plugging it into USB(IF4,IF5).
Is there a limit to USB capacity?
Thank you.

[xabier.zaldua]

Hi Choi!

The answer to this question has already been answered in this post:

AsUSB library support for USB flash disks in Bergaplast PLCs

Hello, please see the help for the AsUSB library B&R Online Help (br-automation.com) Basically FAT12, 16 and 32 are supported. This Filesystems then also limit the size of the USB Sticks which (If I remember correctly) is 2 Terabyte for FAT32) Also our PLCs do support hotswap but please note that writing to the stick and disconnecting it will cause damaged files or even a damaged file system on the stick.