Alias in iX Developer 2.0 KI00310 2013-02
1 Function and area of use This document explains how to set up and use aliases in iX Developer 2.0. An alias should be treated as a property of a screen and can act as a stand-in for a tag. The alias can be used to reference a tag wherever that tag can be referenced directly. When used, iX Developer will act the same as if the original tag had been used. Each screen using aliases can be configured with a different instance with different tag references. Using aliases will enable reuse of screens without having to create a new duplicated screen.
Software requirements: - iX Developer 2.0
2 About this Start-Up document This Start Up document should not be considered as a complete manual. It is an aid to be able to start up a normal application quickly and easily. For further information we refer to the manual for iX Developer 2.0. This document and other Start Up documents can be obtained from your closest distributor of operator terminals. Please use the address manual@ beijer.se for feedback on our Start Up documents.
Page 1 (6) Beijer Electronics Automation AB a company in the Beijer Electronics Group Parent Company (Reg. office) Subsidiaries Beijer Electronics Automation AB Norway, Drammen: Beijer Electronics AS, +47 32 24 30 00 P.O. Box 426 Finland, Helsinki: Beijer Electronics Oy, +358 207 46 35 40
SE-201 24 MALMÖ, SWEDEN Denmark, Copenhagen: Beijer Electronics A/S, +45 70 26 46 46 Telephone +46 40 35 86 00 Estonia, Tallin: Beijer Electronics Eesti Oü, +372 6 518140 Fax +46 40 93 23 01 Latvia, Riga: Beijer Electronics SIA, +371 7 842280 Visitor’s address Stora Varvsgatan 13a, Malmö Lithuania, Vilnius: Beijer Electronics UAB, +370 5 2323101
Reg no. 556701-3965 VAT no SE556701-3965-01, Internet www.beijer.se, e-mail [email protected] KI_eng.dot, 070221
Alias in iX Developer 2.0 KI00310 2013-02
3 Set up screens and creating aliases In this Start-Up document we will pretend that we have 3 motors which we want to set 2 parameters to, Speed and Max current. Aliases will help us to make this easy. Create 3 buttons on the startup screen and name them Motor 1/2/3.
Create a new screen. Add 2 sliders and 1 button to the new screen.
The sliders will represent the motor parameters and the button will close the screen.
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Alias in iX Developer 2.0 KI00310 2013-02
3.1 Adding aliases On the bottom left of the screen, on the desktop view mode tabs, click on Aliases.
Add two aliases by clicking on Add. Name the 2 aliases like the parameters we want to use. These names will only be shown locally on the current screen. In the Default Value column, type in a default tag name. Click on enter and the tag will automatically be created or browse for desired tag.
Parameter Description Alias Name Symbolic name. The name can be any alphanumeric string, beginning with a letter (a-z, A- Z). Default Selection of tags to create aliases of. If no tag is selected the alias will be treated as a local Value screen variable. The default value will be the default value for the alias in the created instances. It will also be the reference for the default instance. Data Type Selection of data type. This setting is enabled by first clicking the Data Type checkbox. The data type will by default reflect the data type of the selected Default Value.
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Alias in iX Developer 2.0 KI00310 2013-02
3.2 Adding instances Click on Instances. The aliases created in the project are presented in a table on the instances tab. It is possible to change the value for the aliases in this tab, in order to override the default value configured in the aliases tab. If a value for an alias is changed in the instances tab, the new value is displayed with bold text to indicate that it differs from the alias’ default value. Add 3 instances. Add instance names and alias values.
Parameter Description Instance Symbolic name. The name can be any alphanumeric string, beginning with a letter (a-z, A-Z). Aliases The names of all aliases created in the project will be displayed in the columns headers. The values connected to the aliases will be listed in each columns.
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Alias in iX Developer 2.0 KI00310 2013-02
3.3 Connecting alias to object Go back to layout view mode.
Select the “Speed-slider” and expand the tags configuration window. Click on Aliases and select MotorSpeed.
When connected:
Do the same thing with “Max current-slider”. Set the Close-button action to close the screen.
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Alias in iX Developer 2.0 KI00310 2013-02
3.4 Show screen action with instances The Show Screen action can be used to display a specific screen. For screens that have aliases, it is also possible to select which instance of the screen to use, and thereby also which set of tags to assign to the screen’s aliases. Back on the startup screen. Select button “Motor 1” and click on Actions. Select Show Screen and choose Screen2 (with aliases). Now we can select which instance we want to use. In this case ParamMotor1. The Default option is a virtual instance configured with the alias’ default values.
Do the same thing with motor 2 and 3. Run the program and test the function.
The configuration is done!
4 Limitations Alias do not support array tags. Alias can not be used in connection with expressions. Alias can not be used with the TrendViewer object. There is no scripting support for ValueChange-event on an alias.
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