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(lái)舊有的是NT30C, 當(dāng)我將舊有的程序下載到NT31C后連接PLC,開(kāi)始聯(lián)機(jī)的時(shí)候就出現(xiàn)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(qǐng)教您這個(gè)錯(cuò)誤的訊息我應(yīng)該從那里開(kāi)始更正呢?