Page 5-28
Chapter 5 Programming
NOTE:
When Hi peak, Lo peak or Time average Calculated point types are reset, the new value will be the
current Basepoint value at the time of reset.
5.6.12.3 Low (Lo) peak
Lo peak Calculated Point Types keep track of the lowest data of a given point. This data is stored until
some form of reset occurs. When the data is reset, the Lo peak point data is printed on the chart / Alarm
log along with the current time and the time the peak value occurred if the Reset print option is enabled.
Programming Parameters
- Once a point has been programmed as a Calculated-Lo peak Point Type,
the user is presented with the following parameters:
Point tag
Section 5.6.5.1
Decimal fix
Section 5.6.5.5
Basepoint
Section 5.6.5.14
Eng units
Section 5.6.5.9
Reset contrl
Section 5.6.5.15
Alarms
Section 5.6.5.10
Chart scale
Section 5.6.5.11
5.6.12.4 High/Low Difference (Hilo diff)
This Calculated Point Type takes the difference between the lowest and highest values in a group of points.
A First point number is assigned and a Last point number is assigned. The difference is taken from those
points inclusive. This point must be outside of the group of points.
Programming Parameters
- Once a point has been programmed as a Calculated-Hilo difference Point
Type, the user is presented with the following parameters:
Point Tag
Section 5.6.5.1
Decimal fix
Section 5.6.5.5
Basepoints
Section 5.6.5.14 (Pick First and Last Basepoints)
Eng units
Section 5.6.5.9
Alarms
Section 5.6.5.10
Chart ccale
Section 5.6.5.11
5.6.12.5 Moving average (avg)
A Calculated Moving average point calculates the continuous average of the measured or processed value
of a selected point based on the Time period of the moving window. The result is the weighted average of
the present reading and the previous average value. Therefore, this type of point can be used to smooth out
noisy or erratic signals and to attenuate the effects of sudden transitions.
Calculated Moving average
points are only programmable for point numbers A through F
.
Programming Parameters
- Once a point has been programmed as a Calculated-Moving average point
type, the user is presented with the following parameters:
Point tag
Section 5.6.5.1
Decimal fix
Section 5.6.5.5
Basepoint
Section 5.6.5.14
Time period
Section 5.6.5.16
Eng units
Section 5.6.5.9
Alarms
Section 5.6.5.10
Chart scale
Section 5.6.5.11
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