Troubleshooting

The PI Vision OMI App utilizes the following custom log flags within the AVEVA Log Flag Editor, to facilitate troubleshooting:

• AFSDK

• Context

• DashboardIDRetrieval

• PIVisionAPP

• PIVisionPropertySet

• URL

  

Of the custom flags applicable to the PI Vision OMI App, URL is the most significant, and can be used to troubleshoot issues related to display loading. When enabled, this flag shows the URL that will be formed, based on the configuration that was set in the app.

As the PI Vision OMI App is essentially a wrapper around the PI Vision product, this URL flag can be used to expose and diagnose the display issue that you may be seeing in the PI Vision OMI App.

To identify if the issue is on the OMI side or PI Vision side, copy the URL, as shown in the System Platform logger view, and paste it in your standard browser. The behavior of the PI Vision display in the browser with the given URL parameters/values should match the behavior seen in the OMI app, if the issue is on the PI Vision side.

If the problem is identified on the PI Vision side, we recommend that you contact Osisoft – PI vision customer support. Once the problem is fixed in PI Vision, the PI vision OMI App for will start working and displaying the expected behavior.

Although many URL parameters can be changed while the application is running, PI Vision does not officially support URL parameters as a run-time setting. This means that the parameters are intended to be used in the URL that opens the application, but not to modify the running application. To the end user, this means that some parameter changes will require either a browser refresh or to reload the app in a new tab.

Having said that, many parameters will work correctly at run-time. If you encounter a parameter that is not working the way you think it should, and it is causing an issue at run time, use the custom flag URL to verify if the same behavior is also seen in the standard browser. Based on the results, you may need to contact customer support or upgrade your PI Vision application server.