SIEMENS 6AV3971-1XD03-0AA0 Description Description SIEMENS MEMORY SUBMODULE FOR OP30 V2.01 W. OPER. SYSTEM IN 256KB EPROM AND 256KB FLASH-EPROM Related products SIEMENS 1FK7022-5AK71-1AG0 SIEMENS 1FK6042-6AF71-1TH0 SIEMENS 1FK6060-6AF71-1TA0 Quick View 6SL3120-1TE32-0AA4 SIEMENS 1FK7083-5AF71-1EB3 SIEMENS 1FK6032-6AK71-1TA0