ITEM C 1-Series - SD;MMC Card; Supported Card Types; Supported Functions; Supported File Systems

Electrical installation
Page 100
8.10 SD/MMC card
8.10.1 Supported card types
SD
SDHC
MMC
8.10.2 Supported functions
Load a parameter set (DCO file)
Save the current parameter set (DCO file)
Load a firmware file
8.10.3 Supported file systems
FAT12
FAT16
FAT32
8.10.4 File names
Only file and directory names according to the 8.3 standard are supported.
8.3 file and directory names have at most eight characters (letters or numbers) followed by a period “.” and a
filename extension of at most three characters.
File and directory names may only consist of upper-case characters and numbers.