What does a telemetry failure indicate according to EMS quality codes?

A telemetry failure indicates that the reading is uncertain and needs verification. In the context of Energy Management Systems (EMS) and their quality codes, telemetry failures mean that the data being received from field devices or remote locations may not be accurate or dependable at that moment. This could stem from various issues like communication interruptions, device malfunctions, or other technical failures that impact data integrity.

When telemetry is functioning properly, readings can be considered reliable, but a failure signifies doubts about the data's correctness, thus necessitating further investigation to ensure that operational decisions based on such data do not lead to errors. It is essential in energy management to verify uncertain readings to maintain system reliability and ensure that any corrective actions taken are based on accurate information.