cnv包 --模块cnv 422fx2n2328av--邮bd bc通讯 485fx2nfx2nplc

---cnv422 fx2nfx2n232 -8av 包485邮 fx2nplc模块bd 通讯cnvbc

模块-fx2nplc485 422232 通讯包fx2nfx2nbc cnv -邮- 8av cnv-bd