SIEMENS 6AV3971-1NA01-0CA0 Description Description SIEMENS MEMORY SUBMODULE FOR OP20 WITH FIRMWARE FOR AS511, FAP, L1, 64 KBYTES Related products SIEMENS 1FN3050-4SA00-0AA0 SIEMENS 1790L811A SIEMENS 1FK7042-5AF71-1EA0 SIEMENS 1FT5072-0AC01-0-Z SIEMENS 1FK7044-7AF71-1EG0 SIEMENS 1FK6032-6AK71-1TA0
