The few systems that did capture diagnostics often displayed it only on a separate maintenance station that was not continuously attended and, therefore, the information was not acted upon.

• 只有少数的系统捕捉诊断信息，但只能显示在一个独立的维护工作站上，而这个工作站并不是一直有人看管，因此诊断信息得不到措施响应。