ULTRA 4 INSTRUCTION MANUAL
172
Date & Time
The date and time is used, to control specific relay functions and date stamp
certain events that are contained in the Data Logs. It is also used in
conjunction with the system watchdog that keeps an eye on the times the
unit has started.
P931 Date
This parameter displays the current date, in the format as set by P933 (Date
Format) and can be reset if required.
P932 Time
This parameter displays the current time and can be reset if required, in the
format HH: MM (24-hour format). This is set initially at the factory for UK
time.
P933 Date Format
This parameter allows you to alter the format that the date is displayed to
your choice of DD: MM: YY, MM: DD: YY or YY: MM: DD. The default is DD:
MM: YY.
Watchdog
You can check how many times the unit has been switched on and look at
the date and time of the last ten starts. This can be useful if there have been
power failures. The Ultra 4 can be backed up from a battery which
automatically cuts in during power failure, battery backed up units will
continue uninterrupted operation and therefore will not register a loss of
mains power.
The following parameters can be accessed by directly entering the
parameter number. To do this, enter the program mode and then type in
the appropriate parameter number.
P940 Number of Starts
This parameter shows how many times the unit has been powered up.
P941-P960 Start Date & Time
Parameters P941 and P942 show the date and time that the unit was last
started. There are ten start dates & times recorded, which are parameters
P943-P960. The first on the list are the most recent, and the last ones are
the oldest. These are read only and cannot be changed.
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