2 Visual Components Manuals

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4.12.5 Adjusting the Touch Keypad Visual Components touch keypads have a very simple design and can be used directly in most applications. If desired, the keypad can be modified to suit the look and feel of the application. Visual Components keypads were designed as bitmaps and can be modified as needed. However, only the design of the keys can be modified, not the function or the layout. Any graphics program which supports the Windows Bitmap format (.BMP) can be used to edit the keypad bitmaps. Visual Components runtime handles and displays the touch keypads just like any other bitmap. 256 colors are available just like for all other bitmaps in the project (see also Color Table). Various keypad bitmaps are added to the project depending on whether a 1/4 VGA display or a VGA (or larger) display is used. If a 1/4 VGA display is used, a bitmap for the numeric keypad and three bitmaps for the alphanumeric keypads are integrated (each 'page' uses a separate bitmap). For VGA (and larger), two bitmaps are integrated: One for the numeric keypad and one for the alphanumeric keypad. 4.12.6 Tips and Tricks 4.12.6.1 Logging User Actions Logging user actions for security reasons is an important topic. Visual Components does not offer a complete solution here. By using a few existing components and some programming code, a relatively easy solution for this problem can be found. The following lines do not contain a complete example. Instead, they only show ideas and concepts which can be used to record when a user logs on and logs off. Of course, this approach can be expanded later to record picture changes or the altering of values in variables. The Alarm System from Visual Components is used for this plan. Times when a user logs on and logs off are recorded in a separate alarm groups. A string input field allows the entry of the user name. String fields also provide the possibility to hide input (Mode: Password) which is used for password input. The password and user name are checked in the application program. If input is valid, then the user login time is recorded by having the alarm system set the corresponding alarm bit. Texts for user login and logout data are defined in the alarm group. Introduction to Visual Components 2.3 The alarm system logs this entry with the system time and permanently saves the entry in the alarm history. On the alarm page, the actions of a certain 'user' alarm group can be output using group and alarm filters. Only alarms from a certain alarm group can be shown if a group filter is used. Note: Changes in machine data can also be recorded using this method. Multilingual output of alarm texts is also possible. 428 4.12.5 Adjusting the Touch Keypad
Introduction to Visual Components 2.3 4.12.7 Tips and Tricks 4.12.7.1 Creating Recipe Management The following section describes simple recipe management using Visual Components and dynamic variables. Data is stored in a user−defined structure and displayed with the help of dynamic variables. Notes for dynamic variables: • What is a dynamic PV? • How does it differ from 'normal' PVs? • Why are dynamic PVs necessary? • How is a dynamic PV stored? Notes for recipe management: • Executing the Recipe Page • Coding Example in Automatic Basic • Coding Example in ANSI C 4.12.7.1.1 What is a Dynamic PV? A dynamic PV (process variable) is a reference or pointer to a 'normal' PV. Due to this property, it is possible for a dynamic PC to reference several static variables of the same type during its lifespan. Dynamic PVs can only be used in the Automation Basic and ANSI C languages. 4.12.7.1.2 How Does it Differ from 'Normal' PVs? 4.12.7.1.2.1 Memory Allocation The biggest difference is in its memory usage. While a static variable occupies its actual physical size in the memory (i.e. ULONG = 4 bytes), a dynamic PV is only a reference to a static variable, i.e. in reality it only contains the address of the static PV it refers to. However, since addresses also occupy 4 bytes in the memory, this difference only has an effect when using arrays and structures with several elements. 4.12.7.1.2.2 Dynamic Response of Contents Dynamic PVs have the ability to switch between several static PVs using their referencing property. However, a reference is more than simply 'pointing'. When a dynamic PV points to a static PV, it also provides access to the data contained in the static PV. 4.12.7.1.3 Why are dynamic PVs necessary? 4.12.7.1.3.1 Example: Only one element should be displayed in the visualization unit from an array which contains various data (i.e. recipe data). Whichever data an index variable refers to is displayed. In the variable output field on the display, an output field of the same data type as the array element is used and linked to a dynamic variable. Depending on the value of the index variable, the corresponding static array value which is referenced by the dynamic variable is displayed. Advantages of dynamic variables: If a recipe (structure array) is stored in an application task, then not all recipes also have to be configured in the visualization application and connected to individual components. A recipe (controller, parameter sets) and its elements only have to be configured using dynamic variables. They can then switch between the individual recipes in the application task using a recipe index. 4.12.7.1.4 How is a dynamic PV stored? There are differences between Automation Basic and ANSI C when creating dynamic PVs. 4.12.7 Tips and Tricks 429
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Introduction to Visual Components 2
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Contents (3.9.2005) Introduction to
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Icons are described from left to ri
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Input Fields Output Fields Touch−
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• Foreground color (text color)
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Defines the text font on the screen
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Assign... color. Bits 8−15 The hi
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Graphic Displays Bottom can be set
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Properties Rectangle properties are
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Allows colors to be set in the edit
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Position Contains various settings
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Background Fill Text and Semi−Gra
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Possible Settings for Full Graphic
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• Using fully configurable Up/Dow
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Y Specifies the position of the upp
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Source Assign... Used to input or d
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0% Source Assign... 100% Value INT
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Note: The Type−Filter button must
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Cancel Applies settings and closes
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Simulation Value Determines the val
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Completion Locking Simulation neces
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Preview Displays the field with the
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Keys Defines additional keys to con
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Password Char For the general opera
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Enables input field locking Locking
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3.2.2.3 Password Input Field − Re
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Font Echo Character There cannot be
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Allows colors to be set in the edit
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Allows passwords to be defined for
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3.2.2.4 ListBox Input Field − Ref
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Y Max. Text Length Rows Font Text G
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Colors variable Allows color to be
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Enables input field locking Locking
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est suited representation for each
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Format Contains various settings fo
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Foreground Background Therefore, se
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Assign... processed with this input
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Assign... negative. The resulting n
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Available settings are described re
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Help Displays help for this tab. 3.
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Simulation Value CharBox Possible S
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Font YY Year displayed with two dig
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Full Graphic Displays palette color
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UINT Availability This field can be
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height of the display minus one pix
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Background customer−specific vari
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project. General Summary of the bas
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Position Contains various settings
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Background Possible Settings for Fu
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3.2.3.6 ListBox Output Field − Re
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Max. Text Length Rows Font Possible
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Colors Allows colors to be set for
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variable. General Summary of the ba
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Assign... Possible Values Values fr
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Actions Availability Special Featur
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Height The set size and position of
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Possible Settings Any bitmaps exist
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By default, only variables of suita
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Momentary USINT Increment/Decrement
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Data Point Value 1 Value 2 No actio
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Completion Value Use Limits Limit M
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Input locked if... Password Level D
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Dimension Determines the touch fiel
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Key Type Determines the action to o
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With the actions in this group, pro
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Possible Settings 0 − 65535 Incre
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3.3 Programming Interface for Contr
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VA_GetPaletteColor Retrieving Palet
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UINT _GLOBAL ready; unsigned long V
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endif 3.3.8.4.3 Example for C Progr
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void _CYCLIC test( void ) { if (rea
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3.3.8.8.2 Example for Automation Ba
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eak; } case 3: (!VA_Saccess(1,VCHan
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VA_Srelease(1,VC_HANDLE); } } } 3.3
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3.3.8.14.2 Example for Automation B
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REALTIME means that each touch acti
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UINT _GLOBAL color; unsigned long V
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3.3.8.20.3 Example for C Programmin
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VC_HANDLE if 0 then ready = 1 endi
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} 3.3.8.24 Disable − enable backl
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IN VCHandle UDINT The handle return
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} } } 3.3.8.28 Requirements and Ini
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This is not required for normal Vis
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CASE selection OF ACTION 1: ENDACTI
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3.3.8.35.1 Parameter I/O Parameter
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3.3.8.36.2 Example for Automation B
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3.4.3 Key Matrix − Panel 4D1164.0
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3.4.5 Key Matrix − Panel 4D1166.0
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3.4.8 Key Matrix − Panel 4P3040.0
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3.4.10 Key Matrix − Panel 5D2210.
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For keys with LED, the number also
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3.5 Software Modules on the Control
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3.5.1.6 VC IPC Touch Driver Module
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The APLIB, DDPCCAN, and VCINTER mod
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The image above shows an Automation
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4.1.4 New Functions in Visual Compo
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The editor can arrange static objec
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Next, the CPU to be used must be se
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In this window, you will connect th
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• Inserting Using the Variable De
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Enter the name "dummy," set the typ
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As soon as the picture editor is sh
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The configuration dialog box for th
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4.2.1.8 CAN − Step 8: Defining IN
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If the compilation was successful,
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Next, the CPU to be used must be se
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Automation Studio now has all neces
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• Inserting a Cyclic Task 4.2.2.3
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Enter the name "dummy," set the typ
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name 'PAGE2'. Repeat this procedure
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Under the Bitmaps node, you now see
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The entries 'TG1' and 'TG2' should
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Another field called Target Picture
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In the editor window, you now see t
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Once the dialog box looks like the
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After confirming the input with OK,
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Now you will add the function which
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If the compilation was successful,
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The "Insert Object" dialog box open
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The program is very short and const
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The C editor is opened by double−
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4.2.4.4 Example: Step 4 Project Nam
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4.3.1 Resource Types The resources
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By assigning the panel object to a
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Note for SG3 Automation Runtime Sys
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Newly created pictures are always a
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4.3.5.8 Defining the Global Picture
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In the editor view, all project var
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Text groups are managed in the tree
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Simply double−clicking on the tex
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After they are inserted, bitmaps ar
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The function is activated by select
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A panel's default fonts are present
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http://www.flashkit.com/fonts/ http
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4.3.12.1.1 4.3.12.2 Dynamic Color C
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The user receives a message when th
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Details about individual configurat
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Warning: This function is not suita
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4.3.15.2 Global Settings − Projec
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Width: Adjustable grid width in pix
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Possibility 2: Serial object proper
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4.5.1.2.2 Text Position Text positi
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Note: Corresponding color values ca
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4.5.3.2 Rectangle and Square 4.5.3.
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Circle colors are globally defined
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4.5.6 Background Bitmaps In this vi
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• Displaying Analog Values Descri
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4.6.2.1.6 Colors If the Use Global
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4.6.2.2.1 Scaling Numeric output fi
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Specifying the field length in char
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4.6.3.1.3 Data Point Variable whose
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4.6.4.1 Advanced Text Output This o
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If the Use Global option is selecte
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4.6.4.3.1 Position Allows the preci
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4.7.1.2 Option bytes This field acc
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4.7.1.8 Locking Input In this windo
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The Activate Automatic Comma Input
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'Up/Down Input' must be activated f
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The Scaling Active option must be s
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4.7.3.1.1 Format The width of the i
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4.7.3.2.1 Keys These settings allow
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The same completion data point can
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The comparative value is determined
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4.7.5.1.1 Numeric Input A standardi
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A single letter can be capitalized
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In this dialog box (color settings
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then the field operates as before.
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4.8.4.1 Connection Tag variables ar
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A new text layer is inserted from t
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When there is a difference in text
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The export file format is determine
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• Graphic Keypad on Touch Systems
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entered in '0. Level' under the 'Ke
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Symbol Meaning This symbol indicate
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Page 398 and 399: 4.10.4.2.2 Next Picture and Previou
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Page 402 and 403: 4.10.6.1 Configuration in the Edito
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Page 406 and 407: accordingly in the cyclic program.
Page 408 and 409: 4.11.2.1.2 IEC Programming Language
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Page 412 and 413: 4.11.4.3 Alarm Group Parameters Aft
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Page 418 and 419: 4.11.6.1.2 Format This field shows
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Page 424 and 425: 4.11.7.2.1 Triggered / Reset (event
Page 426 and 427: 4.11.7.3.2.2 Group Number Filter Th
Page 428 and 429: 4.11.8.3 Configuring Status Texts A
Page 430 and 431: As shown in the dialog box, each al
Page 432 and 433: As a result, the appropriate group
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Page 436 and 437: • Logging User Actions • Creati
Page 440 and 441: 4.12.7.1.4.1 In an Automation Basic
Page 442 and 443: eplaces the old recipe number and t
Page 444 and 445: − RasterCountX" Value="10" − Bi
Page 446 and 447: Exporting begins by clicking on the
Page 448 and 449: Now, the application can use the co
Page 450 and 451: The following describes how VC 2.2
Page 452 and 453: 4.13.2.7 Scaling Input Basically th
Page 454 and 455: Check the program logic of the task
Page 456 and 457: • HotSpot Controls for the Key Ma
Page 458: Introduction to Visual Components 2
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