三菱FX2N 48MR，準(zhǔn)備和計(jì)算機(jī)進(jìn)行通訊。買了個(gè)232BD模塊�，F(xiàn)在232BD和計(jì)算機(jī)上的串口接線，我看到資料上有不同說法，請問哪種是對的�。�
第一種說法：
                      232BD                                     計(jì)算機(jī)串口
                                            RD （2）-------------------------------- 5
                                            SG  （5）-------------------------------- 3
                                            SD （3）  -------------------------------- 2
第二種說法：
                     232BD                                       計(jì)算機(jī)串口
                   RD(2)      ---------------------------         2
                                      SD(3)     ----------------------------------3                                                
                                      ER(4)--------------------------------------4
                                      SG(5)--------------------------------------5
                                      DR(6)  -----------------------------------6                              

引用

引用第1樓daizhi于2009-07-07 17:30發(fā)表的  :
2-------------3
3-------------2
5-------------5
6---|---------4
8---|
.......

應(yīng)是正確的，實(shí)際上用GOT的畫面?zhèn)魉碗娎|就可以。