| 摘要 |
<p>PURPOSE:To eliminate an adverse influence on the collection of other data even when one controller operates poorly, by setting conditions for the control of an engine from a control panel to collect a monitor data for the conditions per controller. CONSTITUTION:Data stored in a RAM within a microcomputer circuit in an engine controller can be employed as external data in an engine controller can be employed as external data and a control value for the engine and can be brought into control contents of a microcomputer irrelevant to a value of a sensor mounted on the engine. Hence, the control of the engine can be set for a state practically impossible or a state of a trouble. Under such a special condition, the stoppage of the engine or the like is possible deficiency of communication path may take place. At this point, communication is cut off for a defective controller. This can prevent a short-coming of disabling communication in the entire communication path even with the multiplexity of the communication path with other controllers. That is, a signal is sent to an engine controller from a control panel to monitor the engine by switching a normal value over to a set data from outside.</p> |
