1. DISPLAY AND OPERATION
This function displays the key and signal operations performed by the NC
operator upon the occurrence of a fault or the output of an NC alarm,
together with the corresponding NC alarms. Operation history
information cannot be displayed on the DPL/MDI or DPL/MDI operation
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 signals
(3)Details of NC alarms
(4)Time stamp (date, time)
#6 #5 #4
#3 #2 #1 #0
[Data type] Bit
OPH The operation history screen is:
0 : Not displayed.
1 : Displayed.
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 1439
The 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 recorded
only when data is recorded within the corresponding interval.