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2 Visual Components Manuals

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The same completion data point can be used for any number of input fields with various completion values. In<br />

doing so, monitoring changes and input in the control application becomes much more simplified.<br />

4.7.3.4 Additional Settings<br />

4.7.3.4.1 Simulation<br />

A text can be defined for each input field which is displayed when the editor is in Simulation mode. In this way,<br />

pictures containing practical values in the input fields can be created for documentation.<br />

The set value is not evaluated by the <strong>Visual</strong> <strong>Components</strong> editor or during runtime.<br />

4.7.3.4.2 Description<br />

Allows text to be stored for documentation purposes.<br />

4.7.3.4.3 Locking<br />

This setting is discussed separately.<br />

See Securing Input with Password Levels.<br />

4.7.3.4.4 Touch Screen<br />

Additional settings are possible when touch screen displays are used. These settings are available for both<br />

numeric and textual input.<br />

See Using Input Fields on Touch Screens.<br />

4.7.4 Securing Input with Password Levels<br />

Introduction to <strong>Visual</strong> <strong>Components</strong> 2.3<br />

Securing input is frequently a requirement of visualization applications. <strong>Visual</strong> <strong>Components</strong> basically supports<br />

any type of security which can define a process variable using the currently set security level in numeric form as<br />

a result.<br />

<strong>Visual</strong> <strong>Components</strong> provides special password input fields for locking entries using passwords. Other<br />

mechanisms for this can be produced on the controller using application tasks. For example, a key switch could<br />

be requested using I/O variables, or a serial device which reads cards with electronic chips could be addressed<br />

using the FRAME library. However, these possibilities are application specific and so will not be expanded upon<br />

352 4.7.3.4 Additional Settings

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