2 Visual Components Manuals

Now, the application can use the complete panel project.
You must be careful when importing complete panel objects when different display hardware is used for both
projects. Only the properties of the target hardware (project) should be supported which are then adapted to the
imported project.
4.13 Frequently Asked Questions (FAQ)
4.13.1 Frequently Asked Questions (FAQ) − Input Fields
How can passwords longer than those provided with password input fields (6 characters) be entered?
A maximum of 6 characters can be entered for passwords when password input fields are used. If this length is
not sufficient, then a string input field can be used with the "Password" edit mode.
4.13.2 Frequently Asked Questions (FAQ) − Scaling
4.13.2.1 General
Scaling in Visual Components 2.2 fulfills two tasks. On one hand, input can be limited to a value range different
than that of the connected data type. On the other hand, values can actually be scaled linearly.
The following description gives an overview of how scaling functions internally, which features are included, and
how internal performance is affected with different configurations.
This document should be considered as a reference for developers and as a helpful aid to configuration for
users. We have tried to describe all types of configurations and to supply the background necessary to
understand VC 2.2 Runtime.
Scaling can be illustrated with Step 9 in the demo project.
4.13.2.2 Mathematics Reference
Scaling in VC 2.2 basically functions the same as a linear function with the equation
Linear Equation:
y = k * x + d
Straight Line Slope:
k=dy/dx
Shifting to the Y axis is calculated as follows:
d=Yp −(xp*dy/dx)
y ... Function value à scaled value
x ... Output value à value to be scaled
k ... Slope
d ... Shift to the Y axis
Introduction to Visual Components 2.3
438 4.13 Frequently Asked Questions (FAQ)