Value changed doesn't work

andrea.montresor · July 17, 2015, 12:37pm

Hi,
I added in value changed of a memory tag (Input) a script that allows you to write a value to another tag (output) with system.tag.write.
When I go to manually change the value of the memory tag (input) does not write the value that I put in the value changed.

I enclose a photo of the script.

Thanks

JGJohnson · July 17, 2015, 12:47pm

I haven’t used tag event scripting before so I might not understand how it works, but it looks to me like you are defining a function but never calling it.

Don’t you need a statement to call the function after you have defined it?

andrea.montresor · July 17, 2015, 1:30pm

According to this video, I’m doing the right thing: inductiveuniversity.com/video/t … /scripting.

I think that the value changed is called when changing value in the Tag.

JordanCClark · July 17, 2015, 2:07pm

Is the designer in read/write mode?

nmudge · July 17, 2015, 5:26pm

Hi Andrea,

Are your tags in a folder?

If so you need to use a period instead of a tilda, like this:

system.tag.write("[.]output",67)

Best,

andrea.montresor · July 20, 2015, 10:26am

I tried in another gateway and it works.

I think that the problem is in the configuration gateway. Infact when i create a new project in this gateway in output console there is this error:
Exception in thread “AWT-EventQueue-2” java.lang.IllegalArgumentException: Comparison method violates its general contract!
at java.util.TimSort.mergeHi(Unknown Source)
at java.util.TimSort.mergeAt(Unknown Source)
at java.util.TimSort.mergeForceCollapse(Unknown Source)
at java.util.TimSort.sort(Unknown Source)
at java.util.Arrays.sort(Unknown Source)
at sun.awt.datatransfer.DataTransferer.setToSortedDataFlavorArray(Unknown Source)
at sun.awt.datatransfer.DataTransferer.getFlavorsForFormatsAsArray(Unknown Source)
at sun.awt.datatransfer.SunClipboard.getAvailableDataFlavors(Unknown Source)
at com.inductiveautomation.ignition.designer.sqltags.dialog.TagBrowserPanel$TagBrowserActionHandler.canPaste(TagBrowserPanel.java:468)
at com.inductiveautomation.ignition.designer.IgnitionDesigner$Handler.updateEditActions(IgnitionDesigner.java:2832)
at com.inductiveautomation.ignition.designer.IgnitionDesigner$Handler$SetEditActionHandler.run(IgnitionDesigner.java:3072)
at com.inductiveautomation.ignition.designer.IgnitionDesigner$Handler$4.actionPerformed(IgnitionDesigner.java:2214)
at javax.swing.Timer.fireActionPerformed(Unknown Source)
at javax.swing.Timer$DoPostEvent.run(Unknown Source)
at java.awt.event.InvocationEvent.dispatch(Unknown Source)
at java.awt.EventQueue.dispatchEventImpl(Unknown Source)
at java.awt.EventQueue.access$500(Unknown Source)
at java.awt.EventQueue$3.run(Unknown Source)
at java.awt.EventQueue$3.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(Unknown Source)
at java.awt.EventQueue.dispatchEvent(Unknown Source)
at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.run(Unknown Source)
Exception in thread “AWT-EventQueue-2” java.lang.IllegalArgumentException: Comparison method violates its general contract!
at java.util.TimSort.mergeHi(Unknown Source)
at java.util.TimSort.mergeAt(Unknown Source)
at java.util.TimSort.mergeForceCollapse(Unknown Source)
at java.util.TimSort.sort(Unknown Source)
at java.util.Arrays.sort(Unknown Source)
at sun.awt.datatransfer.DataTransferer.setToSortedDataFlavorArray(Unknown Source)
at sun.awt.datatransfer.DataTransferer.getFlavorsForFormatsAsArray(Unknown Source)
at sun.awt.datatransfer.SunClipboard.getAvailableDataFlavors(Unknown Source)
at com.inductiveautomation.ignition.designer.sqltags.dialog.TagBrowserPanel$TagBrowserActionHandler.canPaste(TagBrowserPanel.java:468)
at com.inductiveautomation.ignition.designer.IgnitionDesigner$Handler.updateEditActions(IgnitionDesigner.java:2832)
at com.inductiveautomation.ignition.designer.IgnitionDesigner$Handler.stateChanged(IgnitionDesigner.java:2838)
at com.inductiveautomation.ignition.designer.model.AbstractEditActionHandler.fireChangeEvent(AbstractEditActionHandler.java:37)
at com.inductiveautomation.ignition.designer.sqltags.dialog.TagBrowserPanel$TagBrowserActionHandler.valueChanged(TagBrowserPanel.java:453)
at javax.swing.JTree.fireValueChanged(Unknown Source)
at javax.swing.JTree$TreeSelectionRedirector.valueChanged(Unknown Source)
at javax.swing.tree.DefaultTreeSelectionModel.fireValueChanged(Unknown Source)
at javax.swing.tree.DefaultTreeSelectionModel.notifyPathChange(Unknown Source)
at javax.swing.tree.DefaultTreeSelectionModel.setSelectionPaths(Unknown Source)
at javax.swing.tree.DefaultTreeSelectionModel.setSelectionPath(Unknown Source)
at javax.swing.JTree.setSelectionPath(Unknown Source)
at javax.swing.plaf.basic.BasicTreeUI.selectPathForEvent(Unknown Source)
at javax.swing.plaf.basic.BasicTreeUI$Handler.handleSelection(Unknown Source)
at javax.swing.plaf.basic.BasicTreeUI$Handler.mousePressedDND(Unknown Source)
at javax.swing.plaf.basic.BasicTreeUI$Handler.mousePressed(Unknown Source)
at java.awt.AWTEventMulticaster.mousePressed(Unknown Source)
at java.awt.AWTEventMulticaster.mousePressed(Unknown Source)
at java.awt.AWTEventMulticaster.mousePressed(Unknown Source)
at java.awt.Component.processMouseEvent(Unknown Source)
at javax.swing.JComponent.processMouseEvent(Unknown Source)
at java.awt.Component.processEvent(Unknown Source)
at java.awt.Container.processEvent(Unknown Source)
at java.awt.Component.dispatchEventImpl(Unknown Source)
at java.awt.Container.dispatchEventImpl(Unknown Source)
at java.awt.Component.dispatchEvent(Unknown Source)
at java.awt.LightweightDispatcher.retargetMouseEvent(Unknown Source)
at java.awt.LightweightDispatcher.processMouseEvent(Unknown Source)
at java.awt.LightweightDispatcher.dispatchEvent(Unknown Source)
at java.awt.Container.dispatchEventImpl(Unknown Source)
at java.awt.Window.dispatchEventImpl(Unknown Source)
at java.awt.Component.dispatchEvent(Unknown Source)
at java.awt.EventQueue.dispatchEventImpl(Unknown Source)
at java.awt.EventQueue.access$500(Unknown Source)
at java.awt.EventQueue$3.run(Unknown Source)
at java.awt.EventQueue$3.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(Unknown Source)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(Unknown Source)
at java.awt.EventQueue$4.run(Unknown Source)
at java.awt.EventQueue$4.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(Unknown Source)
at java.awt.EventQueue.dispatchEvent(Unknown Source)
at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.run(Unknown Source)