Fix labview variable to control input

Hi,
I am using the Simulation Interface Toolkit to send variables to Simulink. What I would like to have is a control that is coupled to the value of a text file. In other words the value of the text file will be the control input to Simulink sent via Labview. I can read the variable into Labview and save the local variable. I also have a slide control interfaced with Simulink that can send data. However, I have no idea on how to connect them together - make the slide track the variable I defined. Does anyone have any ideas?
Thanks,
Andy

Hello Andy,
I'm a little shaky on the transfer mechanism you are describing- would you be able to post a small example VI or screenshot of how you are handling the file-to-control data transfer?
Based on your reference to the other forum post, it looks as though you may be using an event structure to update your simulation, in which case you may find the Value (Signaling) property useful. More information on this property can be found here:
KnowledgeBase 4J3DI2MA: Event Structure Does Not Capture the 'Value Change' Event When Values are Programmatically Changed
http://forums.ni.com/t5/LabVIEW/fix-labview-variable-to-control-input/m-p/2174476
LabVIEW Help: Value (Signaling) Property
http://zone.ni.com/reference/en-XX/help/371361H-01/lvprop/ctrl_value_signaling/
I hope that helps, and if you're able to provide an example I might be able to give more specific advice.
Tom L.

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Revision: 954
Author: [email protected]
Date: 2008-03-27 08:02:13 -0700 (Thu, 27 Mar 2008)
Log Message:
Fixed ASC so that Context.input can be null. This will be the case
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checkintests Passed: YES
Needs QA: NO
Needs DOC: NO
API Change: NO
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asc/semantics/CodeGenerator.java
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Fix labview variable to control input

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