[ISS Support Case] Erratic manual change events
Last updated: October 17th, 2025Description
IT team is seeing erratic EVU9520 CV manual change events in the skid logseven when no operator action occurredcausing the setpoint (CV) to jump between 0% and 100% unpredictably. Theyve confirmed the raw transmitter signal is stable and suspect the watchdog/event link between the OMI database and SQL trends may be buffering or dropping updates, resulting in inconsistent trend data (and even differing trend colors) across displays. Additionally, they need clarity on the deadband setting (value 10) and why it isnt preventing these fluctuations.
- Author: Kevin Modlin
- Published: October 17th, 2025
Details:
| Product: Aveva Edge |
| Version: 2020 R2 |
| Solution: [Solution is visible below when you're logged in and have a current subscription] |
| Date Created: | 07/14/2025 |
| Case: | 98492 |
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