SIEMENS 6AV3971-1NA01-0CA0 Description Description SIEMENS MEMORY SUBMODULE FOR OP20 WITH FIRMWARE FOR AS511, FAP, L1, 64 KBYTES Related products SIEMENS 1FT5072-0AC01-1-Z SIEMENS 1FT5066-0AC01-2-Z SIEMENS 1FN3050-4SA00-0AA0 SIEMENS 1FK7011-5AK71-1TG3 SIEMENS 1FN3300-4SA00-0AA0 SIEMENS 1FN3150-4SA00-0AA0
