1.6 Computation Function (/M1 Option)

Computation Function

Computing equations can be set up using measured values and other computed values as variables in computation-dedicated channels, and the computation can be executed. The computed result can be recorded. Computation is performed every scan interval.

Channels Dedicated to Computations

The computation-dedicated channels below can be used.

Model

Number of Channels

Channel Names

Pen model

8

0A, 0B, 0C, 0D, 0E, 0F, 0G, and 0J

 

 

 

Dot model

12

0A, 0B, 0C, 0D, 0E, 0F, 0G, 0J, 0K, 0M, 0N, and 0P

 

 

 

Types of Computations

In the table below, y represents the computed result. X and n represent the measured value, a constant, etc.

Type

Syntax in the Equation

Description

Four arithmetic operation

+, –, *, /

Determines addition, subtraction, multiplication, and division.

 

 

 

Power

**

Determines the power. y = Xn

Square root

SQR()

Determines the square root.

 

 

 

Absolute value

ABS()

Determines the absolute value.

 

 

 

Common logarithm

LOG()

Determines the common logarithm. y=log10x

Exponent

EXP()

Determines the exponent. y = ex

Relational computation

.LT., .LE., .GT., .GE.,

Determines <, , >, or of two elements and outputs “0” or “1.”

 

.EQ., .NE.

 

 

 

 

Logical computation

AND, OR, XOR, NOT

Determines the AND (logical product), OR (logical sum),

 

 

XOR (exclusive logical sum) of two elements,

 

 

NOT (negation) of an element and outputs “0” or “1.”

 

 

 

TLOG computation

TLOG.SUM(), TLOG.

Determines the sum (SUM), the maximum (MAX),

 

MAX(), TLOG.MIN(),

the minimum (MIN), the average (AVE),

 

TLOG.AVE(),

and the maximum – minimum (P-P) at specified time

 

TLOG.P-P(),

intervals. There are three timers for setting the interval.

 

 

 

Data That Can Be Used in Equations

In TLOG computation, the measured values of measurement channels or computed values of computation channels can only be used. For all other computations, all of the data types below can be used.

Measured Values on Measurement Channels

Specified by the channel No. For channels that have scaling enabled, the scaled values are used in the computation.

Computed Values on Computation Channels

Specified by the channel No.

Constants (K01 to K30)

The values assigned to K01 to K30 can be used as constants. Range of values (maximum significant digits is 5): –9.9999E+29 to –1.0000E–30, 0, 1.0000E–30 to 9.9999E+29

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Omega RD100B manual Computation Function /M1 Option, Channels Dedicated to Computations, Types of Computations