| 摘要 |
PURPOSE:To prevent the delay of a fault processing time at the time of fault occurrence by providing a channel condition memory table to store the fault condition at every channel, and prohibiting the execution of channel initialization when a fixed fault is stored. CONSTITUTION:When the intermittent fault of an input/output control device 1 or a periphery control device 2 is generated and then the fixed fault is generated, the condition of the fixed fault is set to a channel condition memory table 6 by a fault detecting means 4. Consequently, even if a channel initializing instruction is generated, since it is referred to before the activation of the instruction, an action is immediately prohibited, an abnormal end is obtained, and the execution of an unnecessary channel initialization processing is suppressed. Thus, the delay of the fault processing time can be prevented, and the operation rate of a system can be improved. |
