Equation; High (Hi) Peak - Omega RD8800 User Manual

Chapter 5 Programming
Calculations can be performed on current point values of a single point or a group of points if set in Equations.
The calculations are performed after each scan of all measured points and the results are stored until the next
point scan.
NOTE: Moving average can be set on channels A, B, C, D E, and F.

5.6.12.1 Equation

The Equation Calculated Point Type allows the user to program an equation to calculate a value of one or
more points and/or constants.
Operators Used for Equations - Forty operators are allowed in any one equation programmed. If the
equation does not compute, the display will read "bad operand". The following operators are available:
P1 to PF
K1 to KF
)
+
-
*
/
^
**
Sq
Ln
Lg
Ex
(
Programming Parameters - Once a point has been programmed as a Calculated-Equation Point Type,
the user is presented with the following parameters:
Point tag
Decimal fix
Set equation
Eng units
Alarms
Chart scale
Output mode

5.6.12.2 High (Hi) peak

Hi peak Calculated Point Types keep track of the highest data of a given point. This data is stored until
some form of reset occurs. When the data is reset, the Hi 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-Hi peak Point Type,
the user is presented with the following parameters:
Point tag
Decimal fix
Basepoint
Eng units
Reset contrl
Alarms
Chart scale
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are used to represent Points
are used to represent Constants
is a RIGHT Parenthesis
is Add
is Subtract
is Multiply
is Divide
is Fractional
is Raise to the Power (X )
y
is Square Root
is Natural Logarithm
is Base Ten Logarithm
is Exponentiation (e )
x
is a LEFT Parenthesis
Section 5.6.5.1
Section 5.6.5.5
Section 5.6.5.13
Section 5.6.5.9
Section 5.6.5.10
Section 5.6.5.11
Section 5.6.5.12
Section 5.6.5.1
Section 5.6.5.5
Section 5.6.5.14
Section 5.6.5.9
Section 5.6.5.15
Section 5.6.5.10
Section 5.6.5.11
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