| 摘要 |
PURPOSE:To permit displaying of the contents of internal registers in order to analyze abnormality and faults by providing respectively specific mode switch, selector switch and display means. CONSTITUTION:A mode switch 2 assingning various kinds of operation modes including maintenance mode and a selector switch 1 assinging registers 6, 7 holding the information to be displayed in display elements 12 are provided to an operation panel provided with various switches for operating an electronic computer and the elements 12. Further, means 8-11 selecting one of the internal registers 6 for the purpose of maintenance through assignment of the maintenance mode by the switch 2 and assignment of the registers 6 by the switch 1 and displaying the contents held in this register 6 in the elements 12 are provided. |
