應該是地址,但是開機自檢后顯示ADDR 22,然后error提示燈亮,無法測量,不知道是什么問題,看說明書的錯誤代碼也沒有此類信息。作者: yanzhaoyouxia 時間: 2011-8-3 12:29
查到error代碼為625。I/O processor does not respond
This test checks that communications can be established between U500 and U700 through the optically isolated (U506 and U704) serial data link. Failure to establish communication in either direction will generate an error.