How to tell if PI AF Link has pending events
- Last UpdatedFeb 12, 2025
- 1 minute read
- PI System
- PI Server
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In a command window, navigate to PI\adm.
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Type:pilistupd –qs piaflink.
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Look for the number of pending events. The -19501 error in general can happen if a user attempts to edit a module that was recently created but didn’t get created in PI AF. A retry will definitely fix that issue.