The Siemens 6AU1720-1KA00-0AA0 is a 64 MB MMC Memory Card from the SIMOTION C - Controller-based family, carrying the bootloader and kernel for SIMOTION C240 and C240 PN controllers. It is the firmware carrier that makes the motion controller operational — without it, the CPU has no operating system to run the application.
Compliance and regulatory posture
RoHS compliant since 01-10-20, and carries REACH Article 33 duty-to-inform information. Export control classifications are AL: N / ECCN: N, meaning no special licensing is required for cross-border shipment under standard industrial automation rules.