App-3
IM 765501-01E
Appendix
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Index
App
Expression
An expression is made up of the combination of variables/constants/literals and
operators/functions. The order of expressions can be changed by enclosing the
expression you wish to prioritize with parentheses. The order of precedence (the order
in which the operators are evaluated in a compound expression) is described later.
Variables
M: Measured value
S: Source value
T: Time stamp equivalent to GMT in 1 µs resolution (unit is seconds)
M[n]: The current measured value to the measured value 15 measurements in the past
(before the computation) specified by n in the range of 0 to –15
S[n]: The current source value to the source value 15 source cycles in the past
specified by n in the range of 0 to –15
T[n]: The current time stamp to the time stamp 15 cycles in the past specified by n in
the range of 0 to –15
I: Source value or measured value that is a current.
V: Source value or measured value that is a voltage.
A: Parameter A
B: Parameter B
C: Parameter C
X: Internal variable X
Y: Internal variable Y
Z: Internal variable Z
J: Counter Cleared to 0 when the statement for substituting initial values into
internal variables is executed and incremented for subsequent computations.
Constants
PI: Ratio of the circumference 3.1415926...
E: The base of the natural logarithm 2.7182818...
Literals
Integer, fixed-point real number, and floating-point real number
Example 1.0 0.1234 -1.2345E-1
Appendix 1 Computation Definition Specifications
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