Series 16/18/160/180-Model C Maintenance Manual, GFZ-62755EN ...

1. DISPLAY AND OPERATION OF CRT/MDI B–62755EN/011.6OPERATION HISTORYThis function displays the key and signal operations performed by the NCoperator upon the occurrence of a fault or the output of an NC alarm,together with the corresponding NC alarms.This function records the following data:(1)MDI key operations performed by the NC operator(2)Status changes (ON/OFF) of input and output signals (selected signalsonly)(3)Details of NC alarms(4)Time stamp (date and time)1.6.1Parameter Setting3106#7OHS#6 #5 #4OPH#3 #2 #1 #0[Data type] Bit#4 (OPH) The operation history screen is:0 : Not displayed. 1 : Displayed.#7 (OHS) The operation history is:0 : Sampled.1 : Not sampled.3122 Interval at which the clock time is recorded in the operation history[Data type] Word[Units of data] Minutes[Valid data range] 0 to 1439The clock time is recorded to the operation history at specified intervals.If zero is set as the interval, ten minutes is assumed. The time is recordedonly when data is recorded within the corresponding interval.30