Time Zone Totals And Distribution - Panasonic CZ-256ESMC2 Operation Manual

6 Using the System

6.6.3 Time zone totals and distribution

The Intelligent Controller provides functions for recording total operating time and calculating
distribution ratios for four time zones: All hours, Regular hours, Out of hours, and Special days.
When using these functions, be aware of the following points.
 Margin of error in time zone operating totals
The intelligent controller acquires operating time data accumulated by individual indoor units via
communication adaptors. The Intelligent Controller itself has an internal communication adaptor
function.
When the Intelligent Controller requests data from a communication adaptor, the adaptor queries
indoor units for their operating time data, and forward it to the Intelligent Controller after all totals
have been calculated.
For this reason, there is a margin of error of up to several minutes that may arise in count totals
around the transitions from one time zone to another. For example, cases such as the following are
possible.
Case 1) Indoor units are stopped at the exact end of the Regular hours time zone (or
Case 2) Indoor units are operated for the same length of time before and after the transition
 Note about daily timer settings
For communications reasons, there is a slight delay before units can be stopped by a timer.
Therefore you should avoid setting timers that stop units exactly at the transition between two time
zones.
For example, if you simultaneously stop a large number of indoor units at the transition from
Regular hours to Out of hours, a certain period of time is required for the indoor units to actually stop.
This time is counted as Out of hours time.
If you need to set a timer to stop units before a time zone transition, you should avoid setting it within
10 minutes of the transition. (This is only an approximately guideline, since results vary depending on
communications conditions.)
 Communications errors and data totals
Data totals may not be accurate if communications errors occur in the Intelligent Controller, indoor
units, or communication adaptors.
For example, if a communications error occurs in the Regular hours time zone, and normal
communications are restored in the Out of hours time zone, all data received by the Intelligent
Controller will be counted in the Out of hours time zone.
Totals data received by the Intelligent Controller is counted in the time zone in which it is received.
 Usage for "All hours"
The usage of "all hours" is calculated from the ratio of distributed portion of the entire group based on
the total of operation data in all time zones. Therefore, it is not consistent with the total usage of "regular
hours", "Out of hours", and "special day".
immediately before the end of the zone). For this reason, several minutes are
counted in the Out of hours total.
from Regular hours to Out of hours, but the totals for the two zones are not the
same.
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