SD Memory Card Module: FX5-SDCD is required for the following functions.
・Firmware update function ※ 1
・Memory card function (SD memory card forced stop, boot operation)
・Data logging function
・Memory dump function
・Backup/Restore
・File transfer function (FTP server)
・File transfer function (FTP client)
・Web server functions (user web pages)

※1 The firmware of FX5S CPU module can be updated using engineering tool. By updating the firmware from the engineering tool, it is possible to update the firmware without using the SD memory card module or SD memory card.