Siemens simatic s7 memory card 6es7954 8lf02 0aa0 24 mbyte siemens 6es7954 8lf02 0aa0 p the siemens 6es7954 8lf02 0aa0 is a simatic s7 memory card the 24 mbyte card is ideal for backing up and transferring a program to multiple cpus and to update the firmware of cpus signal modules and communication modules p siemens 6es7954 8lf02 0aa0 simatic s7 memory card 24 mb