Technology · Synchronisation · Data
One timebase for the controller and the sensor.
A sensor block and a controller poll captured on different clocks cannot be aligned afterwards. Toleron timestamps sensor data from the acquisition clock, corrects controller clock drift at the edge, and evaluates triggers against the data's own time — so a recording holds both on one axis.
- Sensor timestamps
- Acquisition clock, ns
- Controller clock drift
- Corrected at the edge
- Frames
- Continuity-counted
The data clock
Sensor blocks carry nanosecond timestamps from the acquisition process, not from whoever received them. Triggers fire and clear at those timestamps. Recording windows are cut on them, and a finalised recording holds exactly the requested window.
Controller clock drift
Controllers keep their own clocks, and those clocks drift. MQTT datapoints are re-timed at the edge, so the result is robust against controller clock drift. OPC UA polls are stamped on receipt with the source timestamp preserved.
Gaps you can see
Edge-computed frames carry per-signal continuity counters, so a missing frame is detectable rather than invisible. In preview and replay, retention boundaries are drawn on the chart and warm-up periods are marked — a gap looks like a gap, not like a flat line.
Go deeper
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Learn moreNext step
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