
B–63505EN/02
1. DISPLAY AND OPERATION
29
This function displays the key and signal operations performed by the
operator upon the occurrence of a fault or the output of an alarm, together
with the corresponding alarms.
This function records the following data:
(1)MDI key operations performed by the operator
(2)Status changes (ON/OFF) of input and output signals (selected signals
only)
(3)Details of alarms
(4)Time stamp (date and time)
#7
OHS3106
#6 #5 #4
OHD
#3 #2 #1 #0
[Data type] Bit
OHD The operation history screen is:
0 : Not displayed.
1 : Displayed.
OHS Operation history sampling is:
0 : Performed.
1 : Not performed.
#7
3112
#6 #5
OPH
#4 #3 #2 #1 #0
NOTE
When this parameter has been set, the power must be
turned off before operation is continued.
[Data type] Bit
OPH Specifies whether the operation history function is to be enabled.
0 : Enabled.
1 : Disabled.
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.
1.6
OPERATION
HISTORY
1.6.1
Parameter Setting