PI Vision is a powerful tool for visualizing real-time data from the PI System. However, users may encounter various errors that can hinder their experience. Understanding these common issues and how to resolve them can enhance the efficiency of your operations.
1. “No Data” Displayed
Cause: This error occurs when PI Vision displays a tag but no data is available.
Troubleshooting Steps:
- Verify Data Availability: Ensure the PI Point is receiving data by checking its status in PI System Management Tools (SMT).
- Check Time Range: Confirm that the time range selected in PI Vision encompasses periods when data was recorded.
- Inspect Data Quality: Use PI Vision’s data quality indicators to identify any issues with the data.
2. “PI Point Not Found” Error
Cause: This error indicates that the specified PI Point does not exist or is incorrectly referenced.
Troubleshooting Steps:
- Verify PI Point Name: Double-check the spelling and case sensitivity of the PI Point name.
- Check PI Point Existence: Use PI SMT to confirm that the PI Point exists in the system.
- Review Data References: Ensure that the data references in PI Vision are correctly configured.
3. “Communication Error: An Unexpected Error Has Occurred”
Cause: This generic error can result from various issues, including network problems or server misconfigurations.
Troubleshooting Steps:
- Check Network Connectivity: Ensure that the PI Vision server can communicate with the PI Data Archive and AF Server.
- Review Server Logs: Examine the PI Vision and PI Web API logs for any error messages or warnings.
- Verify Server Configuration: Ensure that the server settings are correctly configured in the PI Vision Admin interface.
4. “No Attributes Under AF and DA”
Cause: This issue arises when PI Vision cannot retrieve attributes from the Asset Framework (AF) or Data Archive (DA).
Troubleshooting Steps:
- Check AF Server Connection: Ensure that PI Vision is properly connected to the AF Server.
- Verify AF Database: Confirm that the AF database contains the necessary attributes.
- Review Permissions: Ensure that the user account has the appropriate permissions to access the AF and DA data.
5. “Unexpected Error” During Display Viewing
Cause: This error can occur due to issues with display configurations or server-side problems.
Troubleshooting Steps:
- Check Display Configuration: Ensure that the display is correctly configured and does not contain any invalid references.
- Review Server Logs: Examine the PI Vision logs for any error messages related to the display.
- Test with Default Display: Try opening a default display to determine if the issue is specific to a particular display.
How Osprey Can Assist
Osprey provides runtime metrics for AF analyses, helping to identify bottlenecks or timed-out analyses. While Osprey does not perform calculations, it can be instrumental in diagnosing issues related to data availability and performance in PI Vision displays.
Key Benefits of Using Osprey:
- Monitor AF Analysis Performance: Track the execution status and performance of AF analyses to identify potential issues.
- Identify Data Gaps: Detect missing or delayed data that may affect PI Vision displays.
- Optimize Display Performance: Use insights from Osprey to optimize AF analyses and improve PI Vision display performance.
Ready to See It in Action?
If your team depends on PI System data to keep your plant running safely and efficiently. Osprey is built for you.
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