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LabVIEW SignalExpress Gauge and Meter Controls Cannot be Loaded

Primary Software: LabVIEW Signal Express>>Development System
Primary Software Version: 1.0
Primary Software Fixed Version: N/A
Secondary Software: LabVIEW Modules>>Control Design and Simulation Module, LabVIEW Toolkits>>System Identification Toolkit

Problem:
When I try to use the Gauge or Meter displays in LabVIEW SignalExpress, I get an error saying Controls cannot be loaded. All other displays and controls work fine. Why is this?

Solution:
This is a known issue and is due to shared components that get installed with the NI LabVIEW System Identification Toolkit and/or the NI LabVIEW Control Design and Simulation Module. Installing the Assistants for either one of these Add-Ons can result in this error. One of the following two steps can be used to make Gauges/Meters display properly in LabVIEW SignalExpress
  • Go to \National Instruments\MAX\Assistants\ folder and rename SysId.lbw and ControlDesign.lbw to SysId.bak and ControlDesign.bak respectively. If one of these files do not exist, then that particular Module/Toolkit is not installed and hence the corresponding .lbw file will not be present in the folder. NOTE: Renaming these files back to .lbw will reactivate the respective Assistants. This is useful if the functionality is required later on.
  • If the Module/Toolkit Assistants are not being used currently, then use the Add/Remove Programs from the Windows Control Panel to uninstall the System Identification Assistant as well as the Control Design Assistant. The Module/Toolkit needn't be uninstalled completely, only the Assistants have to be removed.

Update: LabVIEW SignalExpress 3.0 with the Control Design and Simulation Module 8.6 will not cause this error. Older versions of the Control Design and Simulation Module and/or any version of the System Identifcation Toolkit will exhibit this behavior.



Related Links:
NI LabVIEW SignalExpress
NI LabVIEW System Identification Toolkit
NI LabVIEW Control Design and Simulation Module

 



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Report Date: 07/31/2008
Last Updated: 08/19/2008
Document ID: 4NUERE3Y

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