
22. OPERATION HISTORY FUNCTION
22.4 Restrictions
(1)
(2)
(3)
(4
(5)
(6)
(7)
Operation history is not recorded while the operation history screen is being
displayed.
When an input signal goes on or off for less then 16 msec, the event is not
recorded in operation history. See Appendix 1.
The initial state of a signal when the power is turned on is ‘*lo for signals with
an asterisk and “0” for all other signals.
When memory is full, older data will be deleted to make space for new data.
Operation history memory can hold up to an equivalent of 15,000 items of key
input data.
Data that has been recorded will remain intact even if the power is turned off.
However, when a memory-all-clear is performed, operation history data is also
deleted.
When OPHDP (bit 0 of parameter No. 3110) is set to 1, operation history
functions become invalid.
.
Properly set the data and time on the setting screen.
22.5 Explanation of Parameters
OPHDP
Data type : Bit
OPHDP 0 : Performs operation histow sampling.
I : Does not perform operation history sampling.
Time interval at which to record time in operation history
Data type
: Single-word
Unit of data
:
Minutes
Valid range : 1to1439
2-166