Wcc3.exe screen descriptions, Analog global - math function mode, Math function screen – WattMaster WM-WCC3-TGD-01B User Manual
Page 254: Analog global math function mode screen, Wcc iii technical guide 3-140
WCC3.EXE SCREEN DESCRIPTIONS
WCC III Technical Guide
3-140
Mode 4: Math Function
Global Value = ((2A5-2A6)/(2A5-GA3))*100
The math formula to be calculated is entered here. The WCC III
system has the following math functions:
Arithmetic Functions
Operator
Comment
Add
+
Adds the value at its right to the value at
its left
Subtract
-
Subtracts the value at its right from the
value at its left
Multiply
*
Multiples the value at its right by the value
at its left
Divide
/
Divides the value at its left by the value at
its right
Square Root
sqrt(X)
Yields the square root of the value in the
parentheses
Log (Base
10)
log(X)
Yields the log of the value in the
parentheses
Exponential
(X
y
)
pow(X,Y)
Yields the value of the fi rst variable (X) raised
to the power of the second variable (Y)
Natural Log
1n(X)
Yields the natural log of the variable in the
parentheses
ANALOG GLOBAL - MATH FUNCTION MODE
The Math Function mode allows the WCC III system to perform mathematical functions using global analog values.
MATH FUNCTION SCREEN
ANALOG
Global
#:
33
Name
is
GA33
Description:
Linux
Global Data
Pattern:
x,xxx
Unit
of
Measure:
6%
In Local Set this global defaults to LAST value
Mode
4:
Math
Function
Global Value = GA1
If this function cannot be calculated successfully, then use 50.0.
---------------Alarm---------------
Range Low Limit High Limit
Type Message #
Message
Outside
25.0
75.0
1
6
Temp Out of Range
Operator
Comment
Exponential
(e
x
)
exp(X)
Yields the value of “e” raised to the power
of the variable in parentheses
Remainder
%
Yields the remainder when the value at
its left is divided by the value to its right
(integers only)
Trigonometric Functions
Operator
Comment
Sine
sin(X)
Yields the sine of the value in
parentheses
Cosine
cos(X)
Yields the cosine of the value in
parentheses
Tangent
tan(X)
Yields the tangent of the value in
parentheses
Arc-sine
asin(X)
Yields the arc-sine of the value in
parentheses
Arc-cosine
acos(X)
Yields the arc-cosine of the value in
parentheses
Arc-Tangent
atan(X)
Yields the arc-tangent of the value in
parentheses
Analog Global Screen’s WCC III Logical Address is GAXXX, where GA = Global Analog and XXX = Global Analog Address
Analog Global Math Function Mode Screen