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2-18SectionMathematical Function

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2-18 Mathematical Function

The NT31/NT31C and NT631/631C PTs have been equipped with a mathemati-

cal function that automatically executes formulas that have been registered in

the PT in advance with the Support Tool. The mathematical function can auto-

matically perform data processing such as scaling in the PT and display the re-

sults.

Up to 256 calculation formulas can be registered.

This section explains the functions and operation of the mathematical function.

Refer to 5-1 Examples of Actual Applications of Direct Access for an example

application of the mathematical function.

Reference:  In order to use the mathematical function, a mathematical table must be regis-

tered and transferred to the PT along with the image data. Use the Support

Tool (version 4. for Windows) for these operations.

 The mathematical function can be used only when the system program of the

NT21, NT31/31C, or NT631/631C is version 3 or higher.

2-18-1 Executable Calculations

The following table shows the 8 formula patterns that can be executed in the PT.

The formulas have 2 to 5 terms.

Formula pattern Example

x ! x a + b

(x ! x) ! x (a + b) * c

x ! (x ! x) a / (b – c)

x ! ((x ! x) ! x) a + ((b – c) / d)

x ! (x ! (x ! x)) a * (b + (c / d))

((x ! x) ! x) ! (x ! x) ((a * b) – c) / (d + e)

((x ! x) ! (x ! x)) ! x ((a * b) + (c * d)) * e

(x ! x) ! ((x ! x) ! x) (a + b) / ((c – d) * e)

x: Operand; !: Operator

If there isn’t a formula pattern that matches your formula exactly, use operators

and operands that won’t affect the result (+0 or *1) in the extra terms, as in the

following example.

Desired formula Formula pattern Registered pattern

+ b

((x ! x) ! (x ! x)) ! x (a * a) + (b * b) + 0

Formula Patterns

Omron NT21 User Manual

Other manuals for Omron NT21