Mitsubishi CPU module FX3U-32M is 16-point input / 16-point output; expansion module FX2N48R is 24-point input / 24-point output is 40 input / 40 output. You can choose Mitsubishi CPU module FX2N-80MR, host 40 in / 40 out relay Output or CPU module FX3U-80MR, host 40 in / 40 out relay output CPU module does not have to choose relay mode output, can also choose transistor output