WattMaster WCC III part 4 - Manual (Page 139)

WCC III Technical Guide 3-135
WCC3.EXE SCREEN DESCRIPTIONS
Sampling From:
The value of the global analog will be the average of this input over
the specifi ed time period.
For example, if 1A3 is input here, the system will periodically read
the value of analog input #3 on satellite controller #1. The value
of the global analog will be the average of the readings over the
specifi ed time period.
Automatically reset by GBXXX being ON
This allows you to have the system automatically restart the
averaging cycle when a global binary value goes either ON or
OFF.
Because this second fi eld is a “choice” fi eld, the list of available
choices will be displayed at the bottom of the screen:
GLOBAL ANALOG - INTEGRAL MODE
AVERAGE MODE SCREEN
ANALOG Global #: 30 Name is GA30
Description: AVG OA TEMP Data Pattern: x,xxx
Unit of Measure: 1 °F
In Local Set this global defaults to LAST VALUE
Mode
3: Integral
Sampling from : 1A3 Automatic Reset by GB1 being ON
Sampling rate: 1 Minutes Window: 33 days
Mode: Average Divisor: 1
i = n
Global value = (  (Di/n ) / divisor
i = 1
If sampling data is unavailable, then use 50 as default value
---------------Alarm---------------
Range Low Limit High Limit Type Message # Message
None
Reset random data by pressing Ctrl-R after editing.
HOME for menu
Make your selection by pressing the once for each
choice until the desired mode type has been selected, and then
press
.
Sampling Rate: 1 Minutes Window: 33 Days
Assume we are monitoring outside air temperature and 1 minute
is entered as the “sampling rate” and 33 days for the Window. The
system will read the value of the outside air temperature every
minute and then average the values until 33 days have elapsed.
After 33 days the calculation process will start over.
In the example above, GB1 goes on at the beginning of each new
month to restart the averaging process, so the end of the window is
never reached. If the end of the window is reached, the system will
restart the calculation process.
The sampling rate can vary from 1 minute to 99 hours. The window
will accept from 0-9999 minutes, hours, days, or samples.
Analog Global Screen’s WCC III Logical Address is GAXXX, where GA = Global Analog and XXX = Global Analog Address
Analog Global Integral Mode Average Mode Screen