摘要 |
PURPOSE:To conduct an accident corresponding functional test at an arbitrary time easily by using an output from a circuit outputting the arbitrary processing timing of software during automatic inspection for controlling an input to a tester. CONSTITUTION:The usage of this function is selected by a terminal 1. When both a trip-lock confirmatory signal and the service conditions of the terminal 1 hold, an AND gate 2 outputs a signal. An output circuit 4 is operated by one-shot circuit 3 emitting an output for a fixed time. X represents a contact closed by the output from the output circuit 4, and is closed during the time when one-shot circuit 3 outputs a signal. The X contact is used for controlling the application of an input to a tester, thus allowing the test of an accident corresponding function at an arbitrary one point after a trip-lock confirmatory time. That is, an output from a circuit outputting arbitrary timing in software during automatic inspection is employed for controlling the input to the tester, thus attaining said object. |