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To define a scaling object

1. Select the appropriate item in the Objects menu, typically Measure Points or Rectangular Field. The Object Browser dialog box appears.
2. Select Scaling and type a unique name in the Name box and, optionally, a description.

• If you want to make the scaling object available in all areas, make sure that Global is selected.

3. Click OK. The scaling object properties dialog box appears.
4. On the Scaling Specification tab, enter up to 10 sets of values in the I/O value and Real value columns.
5. Click the Display tab to specify what you want to display along with the descriptorA descriptor is the graphical display of an object. IGSS includes many types of descriptors including: - Built-in standard symbols - Animated symbols (Symbol Factory library) - Graphics and animation - Drawing symbols - Windows controls - ActiveX controls An IGSS object can be represented with different descriptors on different diagrams..

• You may want to clear the Selectable check box to prevent the operator from selecting the scaling object.

How?

6. Click the Symbol Definition tab to choose the color and symbol to represent the object.

• If you chose Rectangular Field or one of the Standard Descriptors, this tab does not appear.

How?

7. Click OK to save the scaling object.

Notes

• A minimum of two sets of values must be entered.
• The I/O values must consist of whole numbers in increasing order.
• The real values are floating decimal points and can be given in free format, not necessarily in increasing order. They are displayed as floating decimal points, a conversion done automatically by the system when whole numbers are entered.

Tip

• It is a good idea to plan the use of scaling objects early in the configuration process as a scaling object may be re-used any number of times. If a scaling object is changed after being linked to analog or table objects, the change will affect all objects which use it.

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