目前我們所使用的是Model:NT31C-ST14*-EV2; System Program: OMRON Direct Access (E) Version 3.23; Date: 2004-06-08。原來舊有的是NT30C, 當我將舊有的程序下載到NT31C后連接PLC,開始聯機的時候就出現下面的訊息。"addess setting error, addressing error exists in the screen. correct address setting by the support tool, Screen No. 4, address 01421",請教您這個錯誤的訊息我應該從那里開始更正呢?